/* ==========================================================================
   Chandru Sivakumar - Modern Designer & AI Systems Engineering Portfolio
   Design System: Inspired by Jenny Scott Reference (Obsidian Black, Amber Gold & Cream)
   ========================================================================== */

:root {
  /* Obsidian Dark Theme (Default - matches Media (5).jpg) */
  --bg-primary: #0e0e11;
  --bg-secondary: #141418;
  --bg-surface: #18181d;
  --bg-surface-elevated: #202026;
  --bg-card: #18181c;
  --bg-card-hover: #1f1f25;
  --bg-overlay: rgba(14, 14, 17, 0.88);
  
  /* Signature Warm Amber / Golden Yellow Accent */
  --accent-primary: #ffa800;
  --accent-primary-hover: #ffb81a;
  --accent-secondary: #ff8800;
  --accent-gradient: linear-gradient(135deg, #ffa800 0%, #ff8500 100%);
  --accent-glow: rgba(255, 168, 0, 0.28);
  --accent-glow-subtle: rgba(255, 168, 0, 0.12);
  --accent-text-dark: #121214;
  
  /* Neutral Palette */
  --text-primary: #ffffff;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;
  --text-dim: #52525b;
  
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.14);
  --border-accent: rgba(255, 168, 0, 0.45);
  
  /* Additional Accents */
  --accent-emerald: #10b981;
  --accent-emerald-bg: rgba(16, 185, 129, 0.12);
  --accent-cyan: #06b6d4;
  --accent-cyan-bg: rgba(6, 182, 212, 0.12);
  --accent-rose: #f43f5e;
  --accent-rose-bg: rgba(244, 63, 94, 0.12);
  
  /* Typography */
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --font-script: 'Caveat', cursive;
  
  /* Radius */
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --radius-xl: 32px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 8px 24px -4px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 20px 48px -8px rgba(0, 0, 0, 0.65);
  --shadow-amber: 0 10px 30px -5px rgba(255, 168, 0, 0.35);
  
  --transition-fast: 0.18s ease;
  --transition-normal: 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.45s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Cream Light Theme (Matches Media (4).jpg) */
[data-theme="light"] {
  --bg-primary: #faf7f2;
  --bg-secondary: #f2ede4;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #f5f0e8;
  --bg-card: #ffffff;
  --bg-card-hover: #fcfbfa;
  --bg-overlay: rgba(250, 247, 242, 0.92);
  
  --accent-primary: #ffa800;
  --accent-primary-hover: #ff9800;
  --accent-secondary: #e67e00;
  --accent-gradient: linear-gradient(135deg, #ffa800 0%, #ff8500 100%);
  --accent-glow: rgba(255, 168, 0, 0.25);
  --accent-glow-subtle: rgba(255, 168, 0, 0.1);
  --accent-text-dark: #121214;
  
  --text-primary: #121214;
  --text-secondary: #52525b;
  --text-muted: #71717a;
  --text-dim: #a1a1aa;
  
  --border-subtle: rgba(0, 0, 0, 0.08);
  --border-medium: rgba(0, 0, 0, 0.14);
  --border-accent: rgba(255, 168, 0, 0.5);
  
  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 8px 24px -4px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 20px 48px -8px rgba(0, 0, 0, 0.12);
  --shadow-amber: 0 10px 30px -5px rgba(255, 168, 0, 0.25);
}

/* ==========================================================================
   Base Styles & Reset
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  position: relative;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  color: inherit;
  transition: all var(--transition-fast);
}

img {
  max-width: 100%;
  display: block;
}

ul {
  list-style: none;
}

/* Container */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Sparkle & Accent Utilities */
.sparkle-star, .sparkle-icon {
  display: inline-block;
  color: var(--accent-primary);
  filter: drop-shadow(0 0 6px rgba(255, 168, 0, 0.6));
  vertical-align: middle;
  font-style: normal;
}

.text-amber {
  color: var(--accent-primary) !important;
}

.text-muted {
  color: var(--text-muted) !important;
}

.text-secondary {
  color: var(--text-secondary) !important;
}

/* Section Badge Pill (e.g. "● My Services", "● About Me") */
.section-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.95rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
  margin-bottom: 0.9rem;
  box-shadow: var(--shadow-sm);
}

.badge-dot-amber {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--accent-primary);
  box-shadow: 0 0 8px var(--accent-primary);
  display: inline-block;
}

/* Section Header Split Layout */
.section-header-split {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.section-title-large {
  font-size: clamp(2rem, 3.8vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--text-primary);
}

.section-subtitle-text {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 540px;
  line-height: 1.65;
}

/* Standard Pill Buttons */
.btn-amber-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.7rem 1.4rem;
  background: var(--accent-primary);
  color: var(--accent-text-dark);
  font-weight: 700;
  font-size: 0.9rem;
  border-radius: var(--radius-full);
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-amber);
}

.btn-amber-pill:hover {
  background: var(--accent-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 34px -4px rgba(255, 168, 0, 0.45);
}

.pill-arrow-dot {
  width: 26px;
  height: 26px;
  border-radius: var(--radius-full);
  background: var(--accent-text-dark);
  color: var(--accent-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  transition: transform var(--transition-fast);
}

.btn-amber-pill:hover .pill-arrow-dot {
  transform: translate(2px, -2px);
}

.btn-dark-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.7rem 1.4rem;
  background: var(--bg-surface);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.9rem;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.btn-dark-pill:hover {
  background: var(--bg-surface-elevated);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

/* ==========================================================================
   Navigation Header (Reference Style)
   ========================================================================== */
.site-nav {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1rem 0;
  background: rgba(14, 14, 17, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--transition-fast);
}

[data-theme="light"] .site-nav {
  background: rgba(250, 247, 242, 0.88);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

/* Brand Logo */
.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-avatar-badge {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--accent-primary);
  color: var(--accent-text-dark);
  font-weight: 800;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 14px rgba(255, 168, 0, 0.4);
}

.brand-text {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.brand-dot {
  color: var(--accent-primary);
}

/* Nav Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  position: relative;
  padding: 0.25rem 0;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
}

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent-primary);
  border-radius: var(--radius-full);
}

.sim-nav-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.75rem !important;
  border-radius: var(--radius-full);
  background: var(--accent-glow-subtle);
  border: 1px solid var(--border-accent);
  color: var(--accent-primary) !important;
  font-weight: 600;
}

.sim-nav-pill:hover {
  background: var(--accent-primary);
  color: var(--accent-text-dark) !important;
}

/* Nav Actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.theme-toggle-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.theme-toggle-btn:hover {
  background: var(--bg-surface-elevated);
  color: var(--accent-primary);
  border-color: var(--accent-primary);
}

.btn-talk-nav {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 1.15rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-full);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.88rem;
  transition: all var(--transition-fast);
}

.btn-talk-nav:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.btn-talk-arrow {
  width: 22px;
  height: 22px;
  border-radius: var(--radius-full);
  background: var(--accent-primary);
  color: var(--accent-text-dark);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
}

.mobile-menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  align-items: center;
  justify-content: center;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
}

/* ==========================================================================
   Hero Section (Reference Design)
   ========================================================================== */
.hero-section {
  padding: 3.5rem 0 4rem;
  position: relative;
  overflow: hidden;
}

.hero-top-badge-row {
  display: flex;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.hero-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.45rem 1.25rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-secondary);
  box-shadow: var(--shadow-sm);
}

.status-dot-amber {
  width: 9px;
  height: 9px;
  border-radius: var(--radius-full);
  background: var(--accent-primary);
  box-shadow: 0 0 10px var(--accent-primary);
  animation: pulseAmber 2.2s infinite ease-in-out;
}

@keyframes pulseAmber {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.35); opacity: 0.7; }
}

/* Hero Title Header with Rotating Stamp */
.hero-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2.5rem;
  position: relative;
}

.hero-title-wrap {
  flex: 1;
  text-align: center;
}

.hero-title {
  font-size: clamp(2.4rem, 5.2vw, 4.4rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 0.6rem;
}

.highlight-amber {
  color: var(--accent-primary);
}

.hero-subtitle {
  font-size: clamp(1rem, 1.6vw, 1.25rem);
  color: var(--text-secondary);
  font-weight: 500;
}

/* Rotating "HIRE ME • NOW •" Circular Stamp Badge */
.hero-stamp-badge {
  position: absolute;
  right: 1rem;
  top: -10px;
  width: 120px;
  height: 120px;
  cursor: pointer;
  user-select: none;
}

.stamp-svg {
  width: 100%;
  height: 100%;
  animation: rotateStamp 20s linear infinite;
  transform-origin: center center;
}

@keyframes rotateStamp {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.stamp-text {
  font-family: var(--font-sans);
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: 2px;
  fill: var(--accent-primary);
  text-transform: uppercase;
}

.stamp-center-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: var(--bg-surface);
  border: 1px solid var(--border-accent);
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  box-shadow: 0 0 16px rgba(255, 168, 0, 0.3);
}

/* Central Hero Stage */
.hero-stage {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 2rem;
  margin-top: 1rem;
  min-height: 440px;
}

/* Ambient Radial Glow Behind Portrait */
.hero-ambient-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 520px;
  height: 520px;
  border-radius: var(--radius-full);
  background: radial-gradient(circle, rgba(255, 168, 0, 0.16) 0%, rgba(255, 168, 0, 0.04) 45%, transparent 70%);
  pointer-events: none;
  z-index: 1;
}

/* Left Hero Column: Socials & Trust Card */
.hero-left-column {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 2.2rem;
  align-items: flex-start;
}

.hero-socials-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.social-lead-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.social-icons-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.social-circle-btn {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-full);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.social-circle-btn:hover {
  background: var(--accent-primary);
  color: var(--accent-text-dark);
  border-color: var(--accent-primary);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px -3px rgba(255, 168, 0, 0.4);
}

.hero-trust-box {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.9rem 1.2rem;
  box-shadow: var(--shadow-md);
  max-width: 290px;
}

.trust-avatars-row {
  display: flex;
}

.trust-avatar {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-full);
  background: var(--bg-surface-elevated);
  border: 2px solid var(--bg-surface);
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-left: -10px;
  font-size: 0.9rem;
}

.trust-avatar:first-child {
  margin-left: 0;
}

.trust-text {
  display: flex;
  flex-direction: column;
  font-size: 0.78rem;
  line-height: 1.35;
}

.trust-text strong {
  color: var(--text-primary);
  font-size: 0.85rem;
}

.trust-text span {
  color: var(--text-muted);
}

/* Center Hero Portrait & Overlapping CTA */
.hero-portrait-wrap {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 320px;
}

.hero-portrait-img {
  width: 100%;
  max-width: 320px;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-xl);
  filter: drop-shadow(0 15px 35px rgba(0, 0, 0, 0.5));
}

/* Overlapping Bottom Dual Pill (From Reference Image) */
.hero-cta-split-pill {
  display: flex;
  align-items: center;
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-full);
  padding: 4px;
  box-shadow: var(--shadow-lg);
  margin-top: -24px;
  z-index: 3;
}

.hero-pill-btn-amber {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.6rem 1.25rem;
  background: var(--accent-primary);
  color: var(--accent-text-dark);
  font-weight: 700;
  font-size: 0.88rem;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.hero-pill-btn-amber:hover {
  background: var(--accent-primary-hover);
  transform: scale(1.02);
}

.hero-pill-btn-dark {
  display: inline-flex;
  align-items: center;
  padding: 0.6rem 1.25rem;
  background: transparent;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.88rem;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.hero-pill-btn-dark:hover {
  color: var(--accent-primary);
}

/* Right Hero Column: Quote & Floating Pills */
.hero-right-column {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 1.8rem;
  align-items: flex-end;
}

.hero-quote-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  box-shadow: var(--shadow-md);
  max-width: 290px;
  position: relative;
}

.quote-mark {
  color: var(--accent-primary);
  font-size: 1.8rem;
  line-height: 1;
  display: block;
  margin-bottom: 0.2rem;
  font-family: serif;
}

.quote-text {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.45;
  font-style: italic;
}

.hero-floating-tags-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  align-items: flex-end;
}

.floating-tag-item {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 1rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.floating-tag-item:hover {
  transform: translateX(-4px);
  border-color: var(--accent-primary);
}

.floating-tag-item.tag-highlight {
  background: var(--accent-primary);
  color: var(--accent-text-dark);
  font-weight: 700;
  border-color: var(--accent-primary);
}

.tag-dot {
  width: 7px;
  height: 7px;
  border-radius: var(--radius-full);
  background: var(--accent-primary);
}

/* ==========================================================================
   Continuous Marquee / Ticker Strip (Reference Style)
   ========================================================================== */
.ticker-marquee-bar {
  width: 100vw;
  margin-left: calc(-50vw + 50%);
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.95rem 0;
  overflow: hidden;
  user-select: none;
  white-space: nowrap;
  position: relative;
}

.ticker-marquee-track {
  display: inline-flex;
  align-items: center;
  gap: 2.2rem;
  animation: marqueeScroll 36s linear infinite;
  will-change: transform;
}

.ticker-marquee-track span {
  font-size: 0.92rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-primary);
}

.ticker-marquee-track span:nth-child(even) {
  color: var(--accent-primary);
}

@keyframes marqueeScroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ==========================================================================
   Services Section & Interactive Accordion (Reference Style)
   ========================================================================== */
.services-section {
  padding: 6rem 0;
  background: var(--bg-primary);
}

.services-accordion {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Collapsed Bar View */
.service-accordion-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-normal);
  cursor: pointer;
}

.service-accordion-item:hover {
  border-color: var(--border-medium);
  background: var(--bg-card-hover);
}

.service-bar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.4rem 1.8rem;
  user-select: none;
}

.service-bar-left {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.service-num {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.service-bar-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.service-bar-expand-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.service-card-body {
  display: none;
  padding: 2.2rem;
}

/* Active Highlighted State (Orange Card from Reference Image!) */
.service-accordion-item.active {
  background: var(--accent-primary);
  color: var(--accent-text-dark);
  border-color: var(--accent-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-amber);
  cursor: default;
}

.service-accordion-item.active .service-bar-header {
  display: none;
}

.service-accordion-item.active .service-card-body {
  display: block;
}

.service-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.service-card-meta {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.service-card-num {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--accent-text-dark);
  opacity: 0.75;
  font-family: var(--font-mono);
}

.service-card-title {
  font-size: clamp(1.4rem, 2.4vw, 2rem);
  font-weight: 800;
  color: var(--accent-text-dark);
  line-height: 1.2;
}

.service-card-icon-bubble {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--accent-text-dark);
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.service-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1.25rem;
}

.service-pill-tag {
  padding: 0.35rem 0.9rem;
  background: rgba(18, 18, 20, 0.12);
  border: 1px solid rgba(18, 18, 20, 0.2);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent-text-dark);
}

.service-card-desc {
  font-size: 1rem;
  line-height: 1.65;
  color: var(--accent-text-dark);
  opacity: 0.92;
  font-weight: 500;
  max-width: 820px;
}

/* ==========================================================================
   Tools Section (Exploring the Tools Behind My Systems)
   ========================================================================== */
.tools-section {
  padding: 6rem 0;
  background: var(--bg-secondary);
}

.tools-filter-pills {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.t-pill {
  padding: 0.45rem 1.05rem;
  border-radius: var(--radius-full);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.t-pill:hover, .t-pill.active {
  background: var(--accent-primary);
  color: var(--accent-text-dark);
  border-color: var(--accent-primary);
  font-weight: 700;
}

.favorite-tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
}

.tool-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1.5rem;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.tool-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-accent);
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-md);
}

.tool-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.tool-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.tool-level-badge {
  font-size: 0.8rem;
  font-weight: 700;
  font-family: var(--font-mono);
  padding: 0.25rem 0.65rem;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--accent-primary);
}

.tool-card-bottom {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.tool-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
}

.tool-role {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ==========================================================================
   About Me Section (Reference Layout)
   ========================================================================== */
.about-section {
  padding: 6rem 0;
  background: var(--bg-primary);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  align-items: center;
  gap: 4.5rem;
}

/* Left Photo with Amber Backdrop Card (Reference Image Style) */
.about-photo-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
}

.about-amber-card {
  position: relative;
  width: 100%;
  max-width: 380px;
  height: 460px;
  background: var(--accent-primary);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  overflow: hidden;
  box-shadow: var(--shadow-amber);
}

.about-portrait-img {
  width: 90%;
  height: auto;
  object-fit: contain;
  margin-bottom: 0;
}

/* Floating Badges on About Portrait */
.about-floating-badge {
  position: absolute;
  padding: 0.45rem 0.95rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--text-primary);
  font-size: 0.8rem;
  font-weight: 700;
  box-shadow: var(--shadow-md);
  z-index: 2;
}

.about-floating-badge span {
  color: var(--accent-primary);
  margin-right: 0.25rem;
}

.badge-top-left {
  top: 24px;
  left: -15px;
}

.badge-bottom-right {
  bottom: 35px;
  right: -15px;
}

.badge-bottom-left {
  bottom: 85px;
  left: -15px;
}

/* Right Content */
.about-content {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.about-bio-text {
  font-size: 1.15rem;
  line-height: 1.65;
  color: var(--text-primary);
  font-weight: 500;
}

.about-bio-subtext {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--text-secondary);
}

.about-actions-row {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  margin: 1rem 0;
  flex-wrap: wrap;
}

.about-signature {
  font-family: var(--font-script);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--accent-primary);
  letter-spacing: 0.02em;
  transform: rotate(-3deg);
  user-select: none;
}

/* Stats Row: e.g. 25+ Industry Connect, 150+ Happy Customers, 16+ Years Experience */
.about-stats-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
  margin-top: 0.5rem;
}

.about-stat-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.stat-dot-num {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.stat-amber-dot {
  color: var(--accent-primary);
  font-size: 0.9rem;
}

.stat-number {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ==========================================================================
   Projects Section (Let's Have a Look at My Portfolio)
   ========================================================================== */
.projects-section {
  padding: 6rem 0;
  background: var(--bg-secondary);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 1.75rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1.5rem;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.project-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-accent);
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-md);
}

.project-badge-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}

.p-badge {
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-full);
  background: var(--accent-glow-subtle);
  border: 1px solid var(--border-accent);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-primary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.p-flagship {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-emerald);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.project-title {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: 0.6rem;
}

.project-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.project-highlights {
  margin-bottom: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.project-highlights li {
  font-size: 0.85rem;
  color: var(--text-secondary);
  position: relative;
  padding-left: 1.25rem;
  line-height: 1.5;
}

.project-highlights li::before {
  content: "•";
  position: absolute;
  left: 0.25rem;
  color: var(--accent-primary);
  font-size: 1.1rem;
  line-height: 1;
}

.tech-tags-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: auto;
}

.tech-tag {
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-muted);
}

.project-bottom {
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sim-launch-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent-primary);
  font-weight: 700;
  font-size: 0.88rem;
  transition: all var(--transition-fast);
}

.sim-launch-link:hover {
  color: var(--accent-primary-hover);
  transform: translateX(3px);
}

.production-badge {
  font-size: 0.82rem;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

/* ==========================================================================
   Interactive Systems Simulation Workstation (Crown Jewel)
   ========================================================================== */
.sim-arena-section {
  padding: 6rem 0;
  background: var(--bg-primary);
}

.sim-workstation-console {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

/* Console Top Chrome Bar */
.console-chrome-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.4rem;
  background: #111115;
  border-bottom: 1px solid var(--border-subtle);
}

.chrome-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.window-dots {
  display: flex;
  gap: 6px;
}

.w-dot {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
}

.w-dot.red { background: #ef4444; }
.w-dot.yellow { background: #f59e0b; }
.w-dot.green { background: #10b981; }

.console-sys-title {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.engine-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-emerald);
  background: var(--accent-emerald-bg);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
}

/* Console Switcher Deck */
.console-nav-deck {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-subtle);
}

.console-tab-btn {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.15rem 1.4rem;
  border-right: 1px solid var(--border-subtle);
  transition: all var(--transition-fast);
  text-align: left;
}

.console-tab-btn:last-child {
  border-right: none;
}

.console-tab-btn:hover {
  background: var(--bg-surface);
}

.console-tab-btn.active {
  background: var(--bg-surface);
  border-bottom: 2px solid var(--accent-primary);
}

.tab-index-num {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-muted);
}

.console-tab-btn.active .tab-index-num {
  color: var(--accent-primary);
}

.tab-meta {
  display: flex;
  flex-direction: column;
}

.tab-main-label {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.console-tab-btn.active .tab-main-label {
  color: var(--accent-primary);
}

.tab-sub-label {
  font-size: 0.76rem;
  color: var(--text-muted);
}

.console-instruction-strip {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.4rem;
  background: var(--accent-glow-subtle);
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.console-instruction-strip strong {
  color: var(--accent-primary);
}

/* Console Viewport Panes */
.console-viewport {
  padding: 1.5rem;
}

.sim-pane {
  display: none;
}

.sim-pane.active {
  display: block;
}

/* ==========================================================================
   Simulation Components & Cards (Obsidian + Amber)
   ========================================================================== */
.sim-wrapper {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.sim-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-subtle);
}

.sim-title-group h4 {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 0.25rem 0;
}

.sim-subtitle {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.sim-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-primary);
  background: var(--accent-glow-subtle);
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-full);
}

.sim-controls-top {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.sim-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.sim-btn.primary {
  background: var(--accent-primary);
  color: var(--accent-text-dark);
}

.sim-btn.secondary {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
}

.sim-btn:hover {
  transform: translateY(-2px);
  border-color: var(--accent-primary);
}

.modality-pills {
  display: flex;
  gap: 0.4rem;
}

.modality-pills .pill {
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-full);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.modality-pills .pill.active {
  background: var(--accent-primary);
  color: var(--accent-text-dark);
  border-color: var(--accent-primary);
}

/* ==========================================================================
   Simulation 1: Telecom Milan Grid (10,000 Spatial Cell Model)
   ========================================================================== */
.telecom-workspace {
  display: grid;
  grid-template-columns: 460px 1fr;
  gap: 1.5rem;
  align-items: start;
}

.canvas-panel {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.canvas-container {
  position: relative;
  width: 450px;
  height: 450px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  background: #080c14;
  margin: 0 auto;
}

#milan-canvas {
  width: 100%;
  height: 100%;
  display: block;
  cursor: crosshair;
}

.canvas-tooltip {
  position: absolute;
  pointer-events: none;
  background: var(--bg-surface);
  border: 1px solid var(--border-accent);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-xs);
  font-size: 0.75rem;
  z-index: 20;
  box-shadow: var(--shadow-md);
}

.canvas-tooltip.hidden {
  display: none;
}

.tt-header {
  font-weight: 700;
  color: var(--accent-primary);
  margin-bottom: 0.25rem;
}

.tt-row {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  color: var(--text-secondary);
}

.timeline-bar {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.timeline-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.hour-display {
  color: var(--accent-primary);
  font-weight: 700;
  font-family: var(--font-mono);
}

.sim-slider {
  width: 100%;
  accent-color: var(--accent-primary);
  cursor: pointer;
}

.timeline-ticks {
  display: flex;
  justify-content: space-between;
  font-size: 0.72rem;
  color: var(--text-muted);
}

.inspector-panel {
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}

.metric-card-box,
.copilot-card-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.box-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.25rem;
}

.box-tag {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent-primary);
}

.status-pill {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-full);
}

.status-pill.danger {
  background: rgba(239, 68, 68, 0.15);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.status-pill.warning {
  background: rgba(245, 158, 11, 0.15);
  color: #f59e0b;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.status-pill.success {
  background: rgba(16, 185, 129, 0.15);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.inspector-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.65rem;
}

.metric-stat {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-xs);
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.stat-label {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.stat-val {
  font-size: 0.95rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text-primary);
}

.surge-gauge-container {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin: 0.25rem 0;
}

.gauge-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.gauge-track {
  height: 6px;
  background: var(--bg-card);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.gauge-fill {
  height: 100%;
  border-radius: var(--radius-full);
  transition: width 0.2s ease;
}

.gauge-fill.danger { background: #ef4444; }
.gauge-fill.warning { background: #f59e0b; }
.gauge-fill.success { background: #10b981; }

.quick-hotspots {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-top: 0.25rem;
}

.quick-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 600;
}

.hotspot-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.hotspot-chip {
  font-size: 0.72rem;
  padding: 0.25rem 0.6rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.hotspot-chip:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

/* Claude Copilot Box */
.copilot-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.copilot-title {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
}

.copilot-title i {
  color: var(--accent-primary);
}

.live-dot {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.72rem;
  color: var(--accent-emerald);
  font-weight: 600;
}

.copilot-chat-window {
  background: #09090d;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-subtle);
  height: 165px;
  overflow-y: auto;
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  font-size: 0.8rem;
}

.copilot-msg {
  padding: 0.5rem 0.65rem;
  border-radius: var(--radius-xs);
  line-height: 1.45;
  font-size: 0.78rem;
}

.copilot-msg.system {
  background: rgba(255, 168, 0, 0.08);
  color: var(--accent-primary);
  font-size: 0.72rem;
  border-left: 2px solid var(--accent-primary);
  font-family: var(--font-mono);
}

.copilot-msg.user {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  align-self: flex-end;
  max-width: 90%;
}

.copilot-msg.ai {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  align-self: flex-start;
  max-width: 96%;
}

.mcp-code {
  background: rgba(0, 0, 0, 0.6);
  padding: 0.4rem 0.6rem;
  border-radius: 4px;
  margin: 0.35rem 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: #ffa800;
  overflow-x: auto;
  border: 1px solid var(--border-subtle);
}

.copilot-prompts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.copilot-chip {
  font-size: 0.72rem;
  padding: 0.25rem 0.6rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.copilot-chip:hover {
  background: var(--bg-surface);
  color: var(--accent-primary);
  border-color: var(--accent-primary);
}

.copilot-input-row {
  display: flex;
  gap: 0.5rem;
}

.copilot-input-row input {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  color: var(--text-primary);
  padding: 0.5rem 0.75rem;
  font-size: 0.8rem;
  outline: none;
}

.copilot-input-row input:focus {
  border-color: var(--accent-primary);
}

.sim-btn.primary-compact {
  background: var(--accent-primary);
  color: var(--accent-text-dark);
  font-weight: 700;
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-xs);
  font-size: 0.78rem;
}

/* ==========================================================================
   Simulation 2: Prodapt NOC Multi-Agent Orchestration
   ========================================================================== */
.sim-scenarios-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.scenarios-label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-muted);
}

.scenario-buttons {
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.scenario-btn {
  padding: 0.35rem 0.85rem;
  font-size: 0.78rem;
  font-weight: 600;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.scenario-btn:hover,
.scenario-btn.active {
  background: var(--accent-primary);
  color: var(--accent-text-dark);
  border-color: var(--accent-primary);
  font-weight: 700;
}

.noc-workspace {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 1.5rem;
}

.noc-left-col,
.noc-right-col {
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}

.inquiry-card,
.agent-flow-box,
.trace-box,
.resolution-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.inquiry-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.inquiry-input-wrapper {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.sim-textarea {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  color: var(--text-primary);
  padding: 0.65rem 0.85rem;
  font-family: inherit;
  font-size: 0.85rem;
  resize: vertical;
  outline: none;
  line-height: 1.5;
}

.sim-textarea:focus {
  border-color: var(--accent-primary);
}

.sim-btn.primary-glow {
  background: var(--accent-primary);
  color: var(--accent-text-dark);
  font-weight: 700;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 14px rgba(255, 168, 0, 0.25);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.sim-btn.primary-glow:hover {
  background: var(--accent-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(255, 168, 0, 0.35);
}

.flow-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 700;
  margin-bottom: 0.85rem;
}

.flow-indicator {
  color: var(--accent-emerald);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
}

.agent-nodes-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  overflow-x: auto;
  padding: 0.5rem 0;
  gap: 0.35rem;
}

.agent-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  min-width: 85px;
  padding: 0.65rem 0.5rem;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-normal);
}

.agent-node .node-icon {
  width: 18px;
  height: 18px;
  margin-bottom: 0.3rem;
  color: var(--accent-primary);
}

.agent-node .node-name {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-primary);
}

.agent-node .node-role {
  font-size: 0.68rem;
  color: var(--text-muted);
}

.agent-node.active {
  border-color: var(--accent-primary);
  background: rgba(255, 168, 0, 0.1);
  box-shadow: 0 0 12px rgba(255, 168, 0, 0.25);
}

.agent-node.completed {
  border-color: var(--accent-emerald);
  background: rgba(16, 185, 129, 0.08);
}

.node-connector {
  flex: 1;
  height: 2px;
  background: var(--border-subtle);
  margin: 0 0.25rem;
  min-width: 12px;
}

.trace-box {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.trace-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  font-weight: 700;
}

.trace-timing {
  color: var(--accent-primary);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
}

.trace-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  max-height: 260px;
  overflow-y: auto;
}

.trace-empty {
  color: var(--text-muted);
  font-size: 0.82rem;
  text-align: center;
  padding: 2rem 0;
}

.trace-item-card {
  background: var(--bg-card);
  border-left: 3px solid var(--accent-primary);
  border-radius: var(--radius-xs);
  padding: 0.65rem 0.85rem;
  font-size: 0.8rem;
  border-top: 1px solid var(--border-subtle);
  border-right: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.trace-item-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.step-num {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  background: var(--bg-surface);
  padding: 0.15rem 0.4rem;
  border-radius: 3px;
  color: var(--text-muted);
  font-weight: 700;
}

.worker-badge {
  font-size: 0.72rem;
  background: var(--accent-glow-subtle);
  color: var(--accent-primary);
  padding: 0.15rem 0.5rem;
  border-radius: 3px;
  font-weight: 700;
}

.duration-badge {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
}

.trace-summary {
  color: var(--text-secondary);
  line-height: 1.45;
  font-size: 0.8rem;
}

.trace-json-details summary {
  font-size: 0.72rem;
  color: var(--accent-primary);
  cursor: pointer;
  font-weight: 600;
}

.trace-json {
  background: #09090d;
  padding: 0.6rem;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: #ffa800;
  overflow-x: auto;
  margin-top: 0.35rem;
  border: 1px solid var(--border-subtle);
}

.resolution-card {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.res-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.guardrail-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: rgba(16, 185, 129, 0.15);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 700;
}

.res-meta-strip {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-xs);
  font-size: 0.8rem;
}

.res-body-box {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  padding: 1rem;
  min-height: 200px;
  max-height: 280px;
  overflow-y: auto;
}

.res-body {
  font-family: inherit;
  font-size: 0.84rem;
  color: var(--text-primary);
  white-space: pre-wrap;
  line-height: 1.6;
  margin: 0;
}

.res-metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.65rem;
}

.res-stat {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-xs);
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.r-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 600;
}

.r-val {
  font-size: 0.88rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text-primary);
}

/* ==========================================================================
   Simulation 3: Enterprise Churn Analytics & Heterogeneous ML Ensemble
   ========================================================================== */
.sim-presets-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.presets-label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-muted);
}

.preset-buttons {
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.preset-pill {
  padding: 0.35rem 0.85rem;
  font-size: 0.78rem;
  font-weight: 600;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.preset-pill:hover,
.preset-pill.active {
  background: var(--accent-primary);
  color: var(--accent-text-dark);
  border-color: var(--accent-primary);
  font-weight: 700;
}

.churn-workspace {
  display: grid;
  grid-template-columns: 1.15fr 1.25fr;
  gap: 1.5rem;
  align-items: start;
}

.tuner-panel,
.results-panel {
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}

.controls-form {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.control-group label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-secondary);
}

.control-label-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--text-primary);
  font-weight: 600;
}

.control-label-row strong {
  font-family: var(--font-mono);
  color: var(--accent-primary);
}

.slider-bounds {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  color: var(--text-muted);
}

.pill-group {
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.pill-group .t-pill {
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-full);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.pill-group .t-pill.active {
  background: var(--accent-primary);
  color: var(--accent-text-dark);
  border-color: var(--accent-primary);
  font-weight: 700;
}

.control-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.sim-select {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  color: var(--text-primary);
  padding: 0.55rem 0.75rem;
  font-size: 0.82rem;
  outline: none;
}

.sim-select:focus {
  border-color: var(--accent-primary);
}

.lakehouse-benchmark-strip {
  background: var(--bg-surface);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.lh-icon {
  font-size: 1.2rem;
  color: var(--accent-primary);
  flex-shrink: 0;
}

.composite-risk-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.composite-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.risk-status-pill {
  font-size: 0.72rem;
  font-weight: 800;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  text-transform: uppercase;
}

.risk-status-pill.danger {
  background: rgba(239, 68, 68, 0.15);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.risk-status-pill.warning {
  background: rgba(245, 158, 11, 0.15);
  color: #f59e0b;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.risk-status-pill.safe,
.risk-status-pill.success {
  background: rgba(16, 185, 129, 0.15);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.large-gauge-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin: 0.5rem 0 1rem;
}

.gauge-number {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  font-family: var(--font-mono);
  color: var(--accent-primary);
  line-height: 1;
}

.gauge-sub {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin: 0.35rem 0 0.75rem;
}

.gauge-track-large {
  width: 100%;
  height: 8px;
  background: var(--bg-card);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.gauge-fill-large {
  height: 100%;
  border-radius: var(--radius-full);
  transition: width 0.3s ease;
}

.gauge-fill-large.danger {
  background: linear-gradient(90deg, #f59e0b, #ef4444);
}

.gauge-fill-large.warning {
  background: linear-gradient(90deg, #10b981, #f59e0b);
}

.gauge-fill-large.safe,
.gauge-fill-large.success {
  background: #10b981;
}

.models-breakdown-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.65rem;
  border-top: 1px solid var(--border-subtle);
  padding-top: 1rem;
}

.model-mini-gauge {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  padding: 0.65rem;
  border-radius: var(--radius-xs);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.m-name {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 600;
}

.m-val {
  font-size: 0.92rem;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--text-primary);
}

.m-track {
  height: 4px;
  background: var(--bg-surface);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.m-fill {
  height: 100%;
  background: var(--accent-primary);
  border-radius: var(--radius-full);
  transition: width 0.2s ease;
}

.retention-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.ret-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.ret-title {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
}

.ret-title i {
  color: var(--accent-primary);
}

.ret-recommendation-box {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  padding: 0.85rem 1rem;
  font-size: 0.82rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.rec-headline {
  font-weight: 700;
  font-size: 0.88rem;
}

.rec-headline.text-danger { color: #ef4444; }
.rec-headline.text-warning { color: #f59e0b; }
.rec-headline.text-success { color: #10b981; }

.rec-desc {
  color: var(--text-secondary);
  line-height: 1.45;
  font-size: 0.8rem;
  margin: 0;
}

.rec-action-item {
  background: var(--bg-surface);
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-xs);
  border-left: 3px solid var(--accent-primary);
  font-size: 0.8rem;
  color: var(--text-primary);
  line-height: 1.45;
}

.action-buttons-row {
  display: flex;
  gap: 0.65rem;
  margin-top: 0.25rem;
  flex-wrap: wrap;
}

.sim-btn.secondary-compact {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-weight: 600;
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-xs);
  font-size: 0.78rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.sim-btn.secondary-compact:hover {
  background: var(--bg-surface);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

/* ==========================================================================
   Verified Credentials & Flagships (Dual Claude Showcase)
   ========================================================================== */
.cert-section {
  padding: 6rem 0;
  background: var(--bg-secondary);
}

.cert-showcase-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 3.5rem;
}

.cert-showcase-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.cert-showcase-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-accent);
  box-shadow: var(--shadow-md);
}

.cert-card-header {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
}

.cert-badge-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--accent-glow-subtle);
  border: 1px solid var(--border-accent);
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.cert-header-meta {
  flex: 1;
}

.cert-status-row {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
  flex-wrap: wrap;
}

.cert-verified-pill {
  color: var(--accent-emerald);
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.cert-title {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.25;
}

.cert-subtitle {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.cert-actions-top {
  display: flex;
  gap: 0.65rem;
  margin-top: 0.5rem;
}

.cert-actions-top a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
}

.cert-actions-top .btn-primary {
  background: var(--accent-primary);
  color: var(--accent-text-dark);
}

.cert-actions-top .btn-secondary {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
}

.cert-body {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.comp-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0.75rem 0 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.comp-tags-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.comp-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.65rem;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  font-size: 0.76rem;
  color: var(--text-secondary);
}

.comp-tag i {
  color: var(--accent-primary);
  font-size: 0.75rem;
}

/* Technical Specializations Grid */
.cert-grid-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.cert-grid-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
}

.cert-filter-pills {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.c-pill {
  padding: 0.4rem 0.95rem;
  border-radius: var(--radius-full);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.c-pill:hover, .c-pill.active {
  background: var(--accent-primary);
  color: var(--accent-text-dark);
  border-color: var(--accent-primary);
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 1.25rem;
}

.cert-mini-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1rem;
  transition: all var(--transition-fast);
}

.cert-mini-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-3px);
}

.cert-mini-badge-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.45rem;
}

.cert-issuer-badge {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-primary);
}

.cert-mini-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.cert-mini-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.cert-mini-actions {
  display: flex;
  gap: 0.5rem;
}

.cert-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--accent-primary);
}

.cert-action-btn:hover {
  text-decoration: underline;
}

/* ==========================================================================
   Academic & Professional Journey (Reference 2-Column Layout)
   ========================================================================== */
.experience-section {
  padding: 6rem 0;
  background: var(--bg-primary);
}

.timeline-duo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.timeline-column {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.timeline-col-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-primary);
}

.timeline-col-title i {
  color: var(--accent-primary);
}

.timeline-items {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.timeline-entry {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: all var(--transition-fast);
}

.timeline-entry:hover {
  border-color: var(--border-medium);
  transform: translateY(-2px);
}

.timeline-entry-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}

.entry-role {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
}

.entry-period {
  font-size: 0.78rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--accent-primary);
  background: var(--accent-glow-subtle);
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-full);
}

.entry-org {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.entry-bullets {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-top: 0.5rem;
}

.entry-bullets li {
  font-size: 0.85rem;
  color: var(--text-muted);
  position: relative;
  padding-left: 1.25rem;
  line-height: 1.5;
}

.entry-bullets li::before {
  content: "•";
  position: absolute;
  left: 0.25rem;
  color: var(--accent-primary);
}

/* ==========================================================================
   Contact Section & Form
   ========================================================================== */
.contact-section {
  padding: 6rem 0;
  background: var(--bg-secondary);
}

.contact-card-box {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 3rem;
  box-shadow: var(--shadow-lg);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.contact-info h3 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-primary);
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 0.95rem;
  margin-top: 0.5rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-size: 0.92rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.contact-item i {
  color: var(--accent-primary);
  width: 20px;
}

.contact-item:hover {
  color: var(--accent-primary);
  transform: translateX(4px);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}

.form-input, .form-textarea {
  width: 100%;
  padding: 0.85rem 1.15rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.92rem;
  transition: all var(--transition-fast);
}

.form-input:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-glow-subtle);
}

.form-textarea {
  resize: vertical;
}

/* Contact Status Feedback Card */
.contact-status-card {
  background: var(--bg-surface);
  border: 1px solid var(--accent-emerald);
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
  text-align: center;
  box-shadow: 0 4px 24px rgba(16, 185, 129, 0.15);
  animation: fadeIn 0.3s ease;
}

.contact-status-card.hidden {
  display: none;
}

.status-card-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.85rem;
}

.status-card-inner .status-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-full);
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-emerald);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.status-card-inner h4 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.status-card-inner p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
  max-width: 420px;
  margin: 0;
}

.status-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 0.5rem;
}

.btn-secondary-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1.15rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--text-primary);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-secondary-pill:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.btn-text-link {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.82rem;
  cursor: pointer;
  text-decoration: underline;
  padding: 0.5rem;
}

.btn-text-link:hover {
  color: var(--text-primary);
}

/* Custom Social SVG Icons */
.social-svg-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
  transition: all var(--transition-fast);
}

.contact-item:hover .social-svg-icon,
.social-circle-btn:hover .social-svg-icon {
  color: var(--accent-primary);
  stroke: var(--accent-primary);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  padding: 2.5rem 0;
  background: var(--bg-primary);
  border-top: 1px solid var(--border-subtle);
  text-align: center;
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-stage {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    text-align: center;
  }

  .hero-left-column, .hero-right-column {
    align-items: center;
  }

  .hero-floating-tags-list {
    align-items: center;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .timeline-duo-grid {
    grid-template-columns: 1fr;
  }

  .contact-card-box {
    grid-template-columns: 1fr;
    padding: 2rem;
  }

  .console-nav-deck {
    grid-template-columns: 1fr;
  }

  .telecom-workspace,
  .noc-workspace,
  .churn-workspace {
    grid-template-columns: 1fr;
  }

  .canvas-container {
    width: 100%;
    max-width: 450px;
    height: auto;
    aspect-ratio: 1 / 1;
    margin: 0 auto;
  }

  #milan-canvas {
    width: 100% !important;
    height: auto !important;
    aspect-ratio: 1 / 1;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .hero-header-row {
    flex-direction: column;
    gap: 1.5rem;
  }

  .hero-stamp-badge {
    position: static;
  }

  .about-stats-strip {
    grid-template-columns: repeat(2, 1fr);
  }

  .cert-showcase-container {
    grid-template-columns: 1fr;
  }

  .console-tab-btn {
    border-right: none;
    border-bottom: 1px solid var(--border-subtle);
  }

  .agent-nodes-row {
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
  }

  .node-connector {
    display: none;
  }

  .models-breakdown-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .inspector-grid,
  .control-grid-2,
  .res-metrics-grid {
    grid-template-columns: 1fr;
  }

  .sim-controls-top {
    flex-direction: column;
    align-items: stretch;
  }

  .modality-pills {
    flex-wrap: wrap;
  }

  .status-actions {
    flex-direction: column;
    width: 100%;
  }

  .status-actions .btn-amber-pill,
  .status-actions .btn-secondary-pill {
    width: 100%;
    justify-content: center;
  }
}