/* ==========================================================================
   ROHIT BANGAL — BESPOKE EDITORIAL & BACKLIT NOIR DESIGN SYSTEM
   Inspired by Perry Wang, Marco.fyi, Gabriel Valdivia & Jan Blunár
   Dual Theme: Dark Mode (Noir Studio) + Light Mode (Warm Alabaster)
   ========================================================================== */

:root,
body[data-theme="dark"] {
  --bg-canvas: #09090b;
  --bg-subtle: #0e0e11;
  --bg-card: #121216;
  --bg-card-elevated: #17171c;
  --bg-window-bar: #16161b;
  --bg-stage: #0c0c0f;
  --bg-pill: rgba(24, 24, 29, 0.78);
  --bg-pill-mobile: rgba(20, 20, 25, 0.92);
  --bg-chip: rgba(255, 255, 255, 0.045);
  --bg-chip-active: #fafafa;
  --text-chip-active: #09090b;

  --border-hairline: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.18);
  --specular-top: inset 0 1px 0 0 rgba(255, 255, 255, 0.09);

  --text-primary: #fafafa;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;

  --accent-signal: #38bdf8;
  --accent-signal-soft: rgba(56, 189, 248, 0.12);
  --accent-emerald: #10b981;
  --accent-emerald-soft: rgba(16, 185, 129, 0.12);
  --accent-amber: #f59e0b;
  --accent-amber-soft: rgba(245, 158, 11, 0.12);

  --backlight-hero: radial-gradient(70% 45% at 50% 0%, rgba(56, 189, 248, 0.09) 0%, rgba(255, 255, 255, 0.03) 45%, transparent 100%);
  --window-glow: 0 -12px 60px -15px rgba(56, 189, 248, 0.12), 0 30px 60px -20px rgba(0, 0, 0, 0.75);
  --card-shadow: 0 20px 40px -24px rgba(0, 0, 0, 0.7);
  --dock-shadow: 0 12px 36px rgba(0, 0, 0, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.1);
  --popover-shadow: 0 24px 52px -10px rgba(0, 0, 0, 0.72), inset 0 1px 0 rgba(255, 255, 255, 0.12);
  --spotlight-color: rgba(255, 255, 255, 0.045);
  --modal-backdrop: rgba(5, 5, 7, 0.88);
}

body[data-theme="light"] {
  --bg-canvas: #f7f7f5;
  --bg-subtle: #efefec;
  --bg-card: #ffffff;
  --bg-card-elevated: #f9f9f8;
  --bg-window-bar: #f3f3f0;
  --bg-stage: #f4f4f1;
  --bg-pill: rgba(255, 255, 255, 0.86);
  --bg-pill-mobile: rgba(255, 255, 255, 0.94);
  --bg-chip: rgba(24, 24, 27, 0.045);
  --bg-chip-active: #18181b;
  --text-chip-active: #fafafa;

  --border-hairline: rgba(24, 24, 27, 0.085);
  --border-strong: rgba(24, 24, 27, 0.22);
  --specular-top: inset 0 1px 0 0 rgba(255, 255, 255, 0.8);

  --text-primary: #111113;
  --text-secondary: #52525b;
  --text-muted: #71717a;

  --accent-signal: #0284c7;
  --accent-signal-soft: rgba(2, 132, 199, 0.09);
  --accent-emerald: #059669;
  --accent-emerald-soft: rgba(5, 150, 105, 0.1);
  --accent-amber: #d97706;
  --accent-amber-soft: rgba(217, 119, 6, 0.1);

  --backlight-hero: radial-gradient(70% 45% at 50% 0%, rgba(2, 132, 199, 0.07) 0%, rgba(0, 0, 0, 0.015) 50%, transparent 100%);
  --window-glow: 0 24px 54px -18px rgba(15, 23, 42, 0.10), 0 2px 6px rgba(15, 23, 42, 0.04);
  --card-shadow: 0 10px 30px -12px rgba(15, 23, 42, 0.06), 0 1px 3px rgba(15, 23, 42, 0.03);
  --dock-shadow: 0 10px 30px rgba(15, 23, 42, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.9);
  --popover-shadow: 0 20px 44px -10px rgba(15, 23, 42, 0.16), 0 2px 8px rgba(15, 23, 42, 0.06), inset 0 1px 0 rgba(255, 255, 255, 0.95);
  --spotlight-color: rgba(2, 132, 199, 0.045);
  --modal-backdrop: rgba(17, 17, 19, 0.72);
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  background-color: var(--bg-canvas);
  color: var(--text-secondary);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color 0.35s ease, color 0.35s ease;
}

/* Subtle Ambient Top Backlight + Architectural Dot Matrix */
.ambient-canvas {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background-image:
    var(--backlight-hero),
    radial-gradient(var(--border-hairline) 1px, transparent 1px);
  background-size: 100% 100%, 32px 32px;
  background-position: 0 0, center top;
}

/* Top 2px Hairline Scroll Progress */
#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-signal), var(--accent-emerald));
  z-index: 9999;
  transition: width 0.08s linear;
}

/* Container */
.shell {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
  margin: 0;
  color: var(--text-primary);
  font-weight: 600;
  letter-spacing: -0.03em;
}

.serif-italic {
  font-family: 'Instrument Serif', Georgia, serif;
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.01em;
}

.mono {
  font-family: 'JetBrains Mono', monospace;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease, opacity 0.2s ease;
}

p {
  margin: 0 0 1rem;
}

p:last-child {
  margin-bottom: 0;
}

/* ==========================================================================
   FLOATING GLASS PILL DOCK NAVBAR (Desktop Pill + Detached Mobile Popover)
   ========================================================================== */
.dock-header {
  position: fixed;
  top: 18px;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  justify-content: center;
  padding: 0 16px;
  pointer-events: none;
}

.dock-nav {
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 8px;
  border-radius: 999px;
  background: var(--bg-pill);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border: 1px solid var(--border-hairline);
  box-shadow: var(--dock-shadow);
  max-width: 100%;
}

.dock-bar {
  display: contents;
}

.dock-monogram {
  order: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--text-primary);
  color: var(--bg-canvas);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.74rem;
  font-weight: 700;
  margin-right: 4px;
  flex-shrink: 0;
}

.dock-mobile-trigger {
  display: none;
}

.dock-links-drawer {
  order: 2;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.dock-link {
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.81rem;
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
  transition: all 0.2s ease;
}

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

.dock-link.active {
  background: var(--bg-chip);
  color: var(--text-primary);
  box-shadow: inset 0 0 0 1px var(--border-hairline);
}

.dock-divider {
  order: 3;
  width: 1px;
  height: 18px;
  background: var(--border-hairline);
  margin: 0 4px;
  flex-shrink: 0;
}

.dock-theme-btn {
  order: 4;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--border-hairline);
  background: var(--bg-chip);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s ease;
}

.dock-theme-btn:hover {
  border-color: var(--border-strong);
}

/* Detached Floating Glass Popover on Mobile (<= 760px) */
@media (max-width: 760px) {
  .dock-header {
    top: 14px;
    padding: 0 14px;
  }

  .dock-nav {
    position: relative;
    display: block;
    width: min(100%, 340px);
    padding: 0;
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border: none;
    box-shadow: none;
    border-radius: 0;
  }

  .dock-bar {
    display: flex;
    align-items: center;
    height: 44px;
    padding: 6px 7px;
    gap: 4px;
    border-radius: 999px;
    background: var(--bg-pill-mobile);
    backdrop-filter: blur(22px) saturate(175%);
    -webkit-backdrop-filter: blur(22px) saturate(175%);
    border: 1px solid var(--border-hairline);
    box-shadow: var(--dock-shadow);
    transition: border-color 0.2s ease;
  }

  .dock-nav.menu-open .dock-bar {
    border-color: var(--border-strong);
  }

  .dock-monogram {
    width: 30px;
    height: 30px;
    margin-right: 2px;
  }

  .dock-mobile-trigger {
    order: 2;
    flex: 1;
    min-width: 0;
    height: 32px;
    padding: 0 10px;
    border-radius: 999px;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.84rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 6px;
    cursor: pointer;
    transition: background 0.18s ease;
  }

  .dock-mobile-trigger:hover,
  .dock-nav.menu-open .dock-mobile-trigger {
    background: var(--bg-chip);
  }

  .dock-mobile-current {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .dock-mobile-chevron {
    color: var(--text-secondary);
    transition: transform 0.24s cubic-bezier(0.16, 1, 0.3, 1), color 0.2s ease;
    flex-shrink: 0;
  }

  .dock-nav.menu-open .dock-mobile-chevron {
    transform: rotate(180deg);
    color: var(--text-primary);
  }

  .dock-divider {
    margin: 0 2px;
    height: 16px;
  }

  .dock-theme-btn {
    height: 32px;
    padding: 0 10px;
    border: none;
    background: transparent;
    font-size: 0.78rem;
    flex-shrink: 0;
  }

  .dock-theme-btn:hover {
    background: var(--bg-chip);
  }

  #theme-toggle-label {
    display: none;
  }

  .dock-theme-btn {
    width: 32px;
    padding: 0;
    justify-content: center;
    font-size: 0.92rem;
  }

  /* Detached Popover Menu Card */
  .dock-links-drawer {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 6px;
    border-radius: 18px;
    background: var(--bg-pill-mobile);
    backdrop-filter: blur(26px) saturate(180%);
    -webkit-backdrop-filter: blur(26px) saturate(180%);
    border: 1px solid var(--border-strong);
    box-shadow: var(--popover-shadow);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-8px) scale(0.96);
    transform-origin: top center;
    transition:
      opacity 0.18s ease,
      transform 0.24s cubic-bezier(0.16, 1, 0.3, 1),
      visibility 0.18s ease;
  }

  .dock-nav.menu-open .dock-links-drawer {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0) scale(1);
  }

  .dock-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 10px 14px;
    border-radius: 12px;
    font-size: 0.86rem;
    font-weight: 500;
    color: var(--text-secondary);
    box-shadow: none;
  }

  .dock-link:hover {
    background: var(--bg-chip);
    color: var(--text-primary);
  }

  .dock-link.active {
    background: var(--bg-chip);
    color: var(--text-primary);
    font-weight: 600;
    box-shadow: inset 0 0 0 1px var(--border-hairline);
  }

  .dock-link.active::after {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-signal);
    box-shadow: 0 0 8px var(--accent-signal);
    flex-shrink: 0;
  }
}

/* ==========================================================================
   HERO & EDITORIAL INTRO + BENTO GRID
   ========================================================================== */
.hero-section {
  padding: 86px 0 56px;
}

.hero-meta-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-bottom: 14px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--border-hairline);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.73rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.hero-meta-left {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
  font-weight: 600;
}

.hero-meta-right {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.now-mini-list {
  margin: 14px 0 18px;
  padding: 12px 0;
  border-top: 1px solid var(--border-hairline);
  border-bottom: 1px solid var(--border-hairline);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.now-mini-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  font-size: 0.82rem;
}

.now-mini-row .k {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.now-mini-row .v {
  color: var(--text-primary);
  font-weight: 500;
  text-align: right;
}

.now-mini-row .v a:hover {
  color: var(--accent-signal);
}

.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.6);
  animation: pulseEmerald 2.2s infinite;
}

@keyframes pulseEmerald {
  0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.65); }
  70% { box-shadow: 0 0 0 7px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.status-sep {
  color: var(--text-muted);
}

.hero-headline {
  font-size: clamp(2.25rem, 4.7vw, 3.85rem);
  line-height: 1.08;
  letter-spacing: -0.038em;
  font-weight: 600;
  max-width: 960px;
  margin-bottom: 24px;
}

.hero-headline .muted-phrase {
  color: var(--text-secondary);
  font-weight: 400;
}

.hero-subdeck {
  font-size: clamp(1rem, 1.35vw, 1.14rem);
  color: var(--text-secondary);
  max-width: 720px;
  line-height: 1.68;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 52px;
}

.btn-primary-noir {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 999px;
  background: var(--text-primary);
  color: var(--bg-canvas);
  font-size: 0.87rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.btn-primary-noir:hover {
  transform: translateY(-1px);
  opacity: 0.92;
  color: var(--bg-canvas);
}

.btn-ghost-noir {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 18px;
  border-radius: 999px;
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 0.87rem;
  font-weight: 500;
  border: 1px solid var(--border-hairline);
  box-shadow: var(--specular-top);
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-ghost-noir:hover {
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

/* ==========================================================================
   MODULAR BENTO GRID (Marco.fyi inspired)
   ========================================================================== */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
}

.bento-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-hairline);
  border-radius: 20px;
  padding: 24px;
  box-shadow: var(--specular-top), var(--card-shadow);
  overflow: hidden;
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.bento-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(480px circle at var(--mx, 50%) var(--my, 0%), var(--spotlight-color), transparent 45%);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.bento-card:hover::before {
  opacity: 1;
}

.bento-card:hover {
  border-color: var(--border-strong);
}

.bento-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 14px;
}

/* Spans */
.span-4 { grid-column: span 4; }
.span-5 { grid-column: span 5; }
.span-7 { grid-column: span 7; }
.span-8 { grid-column: span 8; }
.span-3 { grid-column: span 3; }
.span-6 { grid-column: span 6; }
.row-2  { grid-row: span 2; }

@media (max-width: 960px) {
  .span-4, .span-5, .span-7, .span-8 { grid-column: span 12; }
  .span-3 { grid-column: span 6; }
  .row-2 { grid-row: span 1; }
}

@media (max-width: 600px) {
  .span-3, .span-6 { grid-column: span 12; }
}

/* Identity Bento Tile */
.identity-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.identity-top-flex {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 16px;
}

.portrait-frame {
  width: 96px;
  height: 96px;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--border-strong);
  flex-shrink: 0;
}

/* Personal Projects Grid */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-bottom: 32px;
}

.project-tile {
  background: var(--bg-card);
  border: 1px solid var(--border-hairline);
  border-radius: 20px;
  box-shadow: var(--specular-top), var(--card-shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.project-tile:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}

.project-tile.hidden-item {
  display: none !important;
}

.project-visual {
  height: 220px;
  background: var(--bg-stage);
  border-bottom: 1px solid var(--border-hairline);
  overflow: hidden;
  position: relative;
  cursor: pointer;
}

.project-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-tile:hover .project-visual img {
  transform: scale(1.03);
}

.project-diagram-canvas {
  width: 100%;
  height: 100%;
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 10px;
  background:
    radial-gradient(80% 80% at 50% 0%, var(--accent-signal-soft), transparent),
    var(--bg-stage);
}

.mini-flow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}

.mini-flow-box {
  flex: 1;
  min-width: 90px;
  padding: 10px 10px;
  border-radius: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border-hairline);
  text-align: center;
}

.mini-flow-box .step {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  color: var(--accent-signal);
  display: block;
  margin-bottom: 3px;
}

.mini-flow-box .lbl {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-primary);
  display: block;
}

.project-content {
  padding: 22px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.project-kicker {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.project-kicker .highlight {
  color: var(--accent-emerald);
  font-weight: 600;
}

.project-name {
  font-size: 1.2rem;
  margin-bottom: 10px;
  line-height: 1.3;
}

.project-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.62;
  margin-bottom: 16px;
  flex: 1;
}

.project-desc strong {
  color: var(--text-primary);
}

.project-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 14px;
  border-top: 1px solid var(--border-hairline);
}

@media (max-width: 820px) {
  .projects-grid {
    grid-template-columns: 1fr;
  }
}

.portrait-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.identity-name {
  font-size: 1.52rem;
  letter-spacing: -0.025em;
  line-height: 1.18;
  margin-bottom: 5px;
}

.identity-role {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 14px;
}

.identity-bio {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.64;
  margin-bottom: 12px;
}

.identity-bio strong {
  color: var(--text-primary);
  font-weight: 600;
}

.social-pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.mini-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 11px;
  border-radius: 999px;
  font-family: inherit;
  font-size: 0.76rem;
  font-weight: 500;
  background: var(--bg-chip);
  border: 1px solid var(--border-hairline);
  color: var(--text-primary);
  cursor: pointer;
  transition: border-color 0.2s ease, transform 0.2s ease, opacity 0.2s ease;
}

.mini-pill:hover {
  border-color: var(--border-strong);
}

.mini-pill-solid {
  background: var(--text-primary);
  color: var(--bg-canvas);
  border-color: transparent;
  font-weight: 600;
}

.mini-pill-solid:hover {
  opacity: 0.9;
  color: var(--bg-canvas);
}

/* Interactive Stack Explorer inside Bento */
.stack-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}

.stack-tab {
  padding: 6px 13px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 500;
  font-family: inherit;
  background: var(--bg-chip);
  border: 1px solid var(--border-hairline);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
}

.stack-tab:hover {
  color: var(--text-primary);
}

.stack-tab.active {
  background: var(--bg-chip-active);
  color: var(--text-chip-active);
  border-color: transparent;
  font-weight: 600;
}

.stack-panel {
  display: none;
  animation: fadeSlide 0.25s ease;
}

.stack-panel.active {
  display: block;
}

@keyframes fadeSlide {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.stack-narrative {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 14px;
  line-height: 1.6;
}

.stack-narrative strong {
  color: var(--text-primary);
}

/* At-a-Glance 2x2 Skills Matrix inside Bento */
.skills-card {
  display: flex;
  flex-direction: column;
}

.skills-glance-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  flex: 1;
}

.skill-pillar {
  background: var(--bg-stage);
  border: 1px solid var(--border-hairline);
  border-radius: 14px;
  padding: 16px 17px;
  display: flex;
  flex-direction: column;
}

.skill-pillar-head {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.skill-pillar-head span.num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--accent-signal);
}

@media (max-width: 680px) {
  .skills-glance-grid {
    grid-template-columns: 1fr;
  }
}

.chip-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.spec-chip {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.73rem;
  padding: 5px 10px;
  border-radius: 8px;
  background: var(--bg-chip);
  border: 1px solid var(--border-hairline);
  color: var(--text-primary);
}

/* Metric Bento Tiles */
.metric-big {
  font-size: clamp(1.7rem, 2.2vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.04em;
  color: var(--text-primary);
  line-height: 1.1;
  margin-bottom: 6px;
}

.metric-big .accent {
  color: var(--accent-signal);
}

.metric-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.48;
}

.metric-desc strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* ==========================================================================
   SECTION HEADERS (Editorial Restraint)
   ========================================================================== */
.section-block {
  padding: 84px 0 36px;
}

.section-header-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  padding-bottom: 24px;
  margin-bottom: 36px;
  border-bottom: 1px solid var(--border-hairline);
}

.section-index {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-signal);
  margin-bottom: 8px;
  display: block;
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.35rem);
  line-height: 1.15;
}

.section-lead {
  max-width: 460px;
  font-size: 0.92rem;
  color: var(--text-secondary);
  margin: 0;
}

/* ==========================================================================
   BACKLIT WINDOW FLAGSHIP CASE STUDIES (Perry Wang + Jan Blunár style)
   ========================================================================== */
.case-window {
  background: var(--bg-card);
  border: 1px solid var(--border-hairline);
  border-radius: 22px;
  box-shadow: var(--specular-top), var(--window-glow);
  overflow: hidden;
  margin-bottom: 40px;
  transition: border-color 0.3s ease;
}

.case-window:hover {
  border-color: var(--border-strong);
}

.window-chrome {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 20px;
  background: var(--bg-window-bar);
  border-bottom: 1px solid var(--border-hairline);
}

.chrome-dots {
  display: flex;
  gap: 7px;
}

.chrome-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border-strong);
}

.chrome-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.74rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  text-align: center;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chrome-badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.71rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--accent-emerald-soft);
  color: var(--accent-emerald);
  white-space: nowrap;
}

/* Interactive Block Diagram Stage inside Flagship Windows */
.window-stage {
  background: var(--bg-stage);
  padding: 28px 24px;
  border-bottom: 1px solid var(--border-hairline);
  position: relative;
}

.arch-pipeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  align-items: stretch;
}

.arch-pipeline.cols-4 {
  grid-template-columns: repeat(4, 1fr);
}

.arch-node {
  position: relative;
  text-align: left;
  background: var(--bg-card);
  border: 1px solid var(--border-hairline);
  border-radius: 14px;
  padding: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
  color: var(--text-secondary);
}

.arch-node:hover,
.arch-node.active {
  border-color: var(--accent-signal);
  background: var(--bg-card-elevated);
  box-shadow: 0 0 0 1px var(--accent-signal), 0 10px 24px -10px rgba(56, 189, 248, 0.25);
}

.arch-node-step {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  color: var(--accent-signal);
  margin-bottom: 6px;
  display: block;
}

.arch-node-title {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
  display: block;
}

.arch-node-sub {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--text-muted);
  display: block;
}

.arch-inspector {
  margin-top: 14px;
  padding: 14px 18px;
  border-radius: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border-hairline);
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.86rem;
  color: var(--text-secondary);
}

.arch-inspector-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 6px;
  background: var(--accent-signal-soft);
  color: var(--accent-signal);
  flex-shrink: 0;
  margin-top: 2px;
}

@media (max-width: 900px) {
  .arch-pipeline,
  .arch-pipeline.cols-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 540px) {
  .arch-pipeline,
  .arch-pipeline.cols-4 {
    grid-template-columns: 1fr;
  }
}

/* Split Media Stage for Robotics Case Studies */
.media-stage-grid {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 16px;
  align-items: stretch;
}

.stage-photo-box {
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--border-hairline);
  height: 300px;
  position: relative;
  background: #070709;
  cursor: pointer;
}

.stage-photo-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.stage-photo-box:hover img {
  transform: scale(1.03);
}

.stage-side-specs {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 12px;
}

.spec-readout {
  background: var(--bg-card);
  border: 1px solid var(--border-hairline);
  border-radius: 14px;
  padding: 15px 16px;
  flex: 1;
}

.spec-readout .kicker {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.spec-readout .val {
  font-size: 0.9rem;
  color: var(--text-primary);
  font-weight: 500;
}

@media (max-width: 820px) {
  .media-stage-grid {
    grid-template-columns: 1fr;
  }
  .stage-photo-box {
    height: 240px;
  }
}

/* Case Window Editorial Body */
.window-body {
  padding: 28px 28px 26px;
}

.case-meta-line {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--accent-signal);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}

.case-heading-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.case-title {
  font-size: clamp(1.35rem, 2.2vw, 1.7rem);
  max-width: 700px;
}

.case-3col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--border-hairline);
}

.case-col-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.71rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.case-col p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.case-col strong {
  color: var(--text-primary);
}

.case-footer-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border-hairline);
}

@media (max-width: 820px) {
  .case-3col {
    grid-template-columns: 1fr;
    gap: 14px;
  }
}

/* ==========================================================================
   EDITORIAL SIBLING-DIMMING LEDGERS (Valdivia & Blunár Signature Interaction)
   Used for Systems Archive, Career Journey, Publications & Awards
   ========================================================================== */
.dim-ledger:hover .ledger-row {
  opacity: 0.48;
}

.dim-ledger .ledger-row:hover {
  opacity: 1 !important;
}

.ledger-row {
  border-bottom: 1px solid var(--border-hairline);
  padding: 24px 12px;
  transition: opacity 0.25s ease, background-color 0.25s ease, padding-left 0.25s ease;
  border-radius: 12px;
}

.ledger-row:first-child {
  border-top: 1px solid var(--border-hairline);
}

.ledger-row:hover {
  background-color: var(--bg-card);
}

/* Filter Pills for Archive */
.archive-filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.archive-pill {
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 500;
  font-family: inherit;
  background: var(--bg-card);
  border: 1px solid var(--border-hairline);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
}

.archive-pill.active,
.archive-pill:hover {
  background: var(--bg-chip-active);
  color: var(--text-chip-active);
  border-color: transparent;
}

/* Archive Grid Layout inside Ledger Row */
.archive-row-grid {
  display: grid;
  grid-template-columns: 84px 3.5fr 5fr auto;
  gap: 20px;
  align-items: center;
}

.archive-row-grid.hidden-item {
  display: none !important;
}

.archive-thumb {
  width: 84px;
  height: 58px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border-hairline);
  background: #0b0b0e;
  flex-shrink: 0;
}

.archive-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.archive-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 3px;
}

.archive-org {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  color: var(--text-muted);
}

.archive-summary {
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.archive-summary strong {
  color: var(--text-primary);
}

@media (max-width: 860px) {
  .archive-row-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}

/* Career Journey Ledger Layout */
.journey-row-grid {
  display: grid;
  grid-template-columns: 210px 1fr;
  gap: 28px;
  align-items: start;
}

.journey-when {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  color: var(--text-muted);
  padding-top: 4px;
}

.journey-badge-now {
  display: inline-block;
  margin-top: 8px;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 0.69rem;
  background: var(--accent-emerald-soft);
  color: var(--accent-emerald);
  font-weight: 600;
}

.journey-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 12px;
}

.logo-tile {
  width: 46px;
  height: 46px;
  border-radius: 11px;
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.08);
  padding: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.logo-tile img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.journey-role {
  font-size: 1.14rem;
  margin-bottom: 2px;
}

.journey-org {
  font-size: 0.88rem;
  color: var(--accent-signal);
  font-weight: 500;
}

.journey-scope {
  font-size: 0.9rem;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.journey-points {
  margin: 0 0 14px;
  padding-left: 18px;
}

.journey-points li {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 6px;
  line-height: 1.58;
}

.journey-points li strong {
  color: var(--text-primary);
}

@media (max-width: 760px) {
  .journey-row-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}

/* Research, Patent & Honors Grid */
.research-subhead {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin: 36px 0 14px;
}

.pub-row-grid {
  display: grid;
  grid-template-columns: 165px 1fr auto;
  gap: 24px;
  align-items: start;
}

@media (max-width: 780px) {
  .pub-row-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}

/* ==========================================================================
   CONTACT BENTO FOOTER
   ========================================================================== */
.contact-bento {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 16px;
  margin-bottom: 48px;
}

.qr-card {
  display: flex;
  align-items: center;
  gap: 20px;
}

.qr-box {
  width: 124px;
  height: 124px;
  background: #ffffff;
  padding: 10px;
  border-radius: 14px;
  flex-shrink: 0;
}

.qr-box img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

@media (max-width: 820px) {
  .contact-bento {
    grid-template-columns: 1fr;
  }
}

.site-footer {
  padding: 28px 0 56px;
  border-top: 1px solid var(--border-hairline);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ==========================================================================
   BESPOKE NOIR LIGHTBOX / MEDIA & CERTIFICATE VIEWER
   ========================================================================== */
.noir-modal {
  position: fixed;
  inset: 0;
  z-index: 10050;
  background: var(--modal-backdrop);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.noir-modal.open {
  display: flex;
  animation: fadeSlide 0.2s ease;
}

.noir-modal-window {
  width: 100%;
  max-width: 920px;
  max-height: 90vh;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: 20px;
  box-shadow: var(--window-glow);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.noir-modal-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 18px;
  background: var(--bg-window-bar);
  border-bottom: 1px solid var(--border-hairline);
}

.noir-modal-title {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text-primary);
}

.noir-modal-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.modal-icon-btn {
  padding: 5px 11px;
  border-radius: 8px;
  border: 1px solid var(--border-hairline);
  background: var(--bg-chip);
  color: var(--text-primary);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  cursor: pointer;
}

.modal-icon-btn:hover {
  border-color: var(--border-strong);
}

.noir-modal-stage {
  padding: 20px;
  overflow-y: auto;
  text-align: center;
  background: var(--bg-stage);
}

.noir-modal-stage img,
.noir-modal-stage video {
  max-width: 100%;
  max-height: 68vh;
  border-radius: 10px;
  display: inline-block;
}

.noir-modal-caption {
  padding: 12px 20px;
  font-size: 0.84rem;
  color: var(--text-secondary);
  border-top: 1px solid var(--border-hairline);
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

/* Scroll Reveal */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.55s cubic-bezier(0.16, 1, 0.3, 1), transform 0.55s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.in {
  opacity: 1;
  transform: translateY(0);
}