/* ============================================
   DESIGN TOKENS
   ============================================ */
:root {
  --bg:            #07090C;
  --bg-elev:       #0E1116;
  --bg-card:       #10141B;
  --bg-card-2:     #0B0E13;
  --border:        #1C2029;
  --border-hover:  #2A2F3B;
  --text:          #F4F5F7;
  --text-muted:    #8B92A0;
  --text-dim:      #545A68;

  --accent:        #86EFAC;
  --accent-bright: #A7F3C7;
  --accent-dim:    rgba(134, 239, 172, 0.15);

  /* Per-project accent tokens — overridden by body.p-* classes */
  --p-accent:      #86EFAC;
  --p-accent-2:    #A7F3C7;
  --p-accent-dim:  rgba(134, 239, 172, 0.15);
  --p-accent-soft: rgba(134, 239, 172, 0.06);
  --p-glow:        rgba(134, 239, 172, 0.14);
  --p-grad-a:      #0F1D2A;
  --p-grad-b:      #0A1218;

  --font-display: 'Space Grotesk', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body:    'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:    'JetBrains Mono', 'Menlo', 'Courier New', monospace;

  --radius-sm:    8px;
  --radius-md:    12px;
  --radius-lg:    20px;
  --radius-xl:    28px;
  --radius-pill:  999px;

  --container:    1280px;
  --section-pad:  120px;

  --shadow-card:  0 20px 50px -20px rgba(0,0,0,0.5);
  --shadow-hover: 0 30px 80px -20px rgba(0,0,0,0.6);
}

body.p-cyan {
  --p-accent:      #22D3EE;
  --p-accent-2:    #7DD3FC;
  --p-accent-dim:  rgba(34, 211, 238, 0.18);
  --p-accent-soft: rgba(34, 211, 238, 0.07);
  --p-glow:        rgba(34, 211, 238, 0.18);
  --p-grad-a:      #0B2033;
  --p-grad-b:      #06141E;
}
body.p-teal {
  --p-accent:      #2DD4BF;
  --p-accent-2:    #99F6E4;
  --p-accent-dim:  rgba(45, 212, 191, 0.18);
  --p-accent-soft: rgba(45, 212, 191, 0.06);
  --p-glow:        rgba(45, 212, 191, 0.16);
  --p-grad-a:      #0B2A28;
  --p-grad-b:      #07161A;
}
body.p-violet {
  --p-accent:      #A78BFA;
  --p-accent-2:    #C4B5FD;
  --p-accent-dim:  rgba(167, 139, 250, 0.18);
  --p-accent-soft: rgba(167, 139, 250, 0.07);
  --p-glow:        rgba(167, 139, 250, 0.16);
  --p-grad-a:      #1A0F2E;
  --p-grad-b:      #0E0818;
}

/* ============================================
   RESET & BASE
   ============================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

/* Body bg — richer ambient: 4 radial glows + slightly brighter engineering grid */
body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  background-image:
    radial-gradient(ellipse 900px 600px at 8% 5%,    var(--p-glow),       transparent 60%),
    radial-gradient(ellipse 950px 650px at 92% 25%,  var(--p-accent-soft),transparent 62%),
    radial-gradient(ellipse 800px 600px at 25% 75%,  var(--p-glow),       transparent 65%),
    radial-gradient(ellipse 700px 550px at 85% 95%,  var(--p-accent-soft),transparent 65%),
    linear-gradient(180deg, rgba(255,255,255,0.03) 0px, transparent 1px),
    linear-gradient(90deg,  rgba(255,255,255,0.03) 0px, transparent 1px);
  background-size: auto, auto, auto, auto, 64px 64px, 64px 64px;
  background-attachment: fixed;
}

body.menu-open { overflow: hidden; }

a { color: inherit; text-decoration: none; transition: color .2s, border-color .2s, transform .2s, background .2s, opacity .2s; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
img { max-width: 100%; display: block; }

::selection { background: var(--p-accent); color: #000; }

/* ============================================
   LAYOUT
   ============================================ */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

section {
  padding: var(--section-pad) 0;
  position: relative;
}

/* ============================================
   TYPOGRAPHY & SHARED
   ============================================ */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--p-accent);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.section-label::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--p-accent);
  border-radius: 2px;
  flex-shrink: 0;
}

.section-title, .page-title {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 4.5vw, 3.75rem);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.025em;
}

.page-title {
  font-size: clamp(3rem, 7vw, 5.5rem);
  background: linear-gradient(135deg, #fff 0%, var(--p-accent-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.split-copy, .page-lead {
  color: var(--text-muted);
  font-size: 17px;
  line-height: 1.65;
  max-width: 640px;
}

.mono-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--p-accent);
  margin-bottom: 12px;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn-pill, .btn-pill-outline, .contact-link, .gallery-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-radius: var(--radius-pill);
  font-family: var(--font-display);
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
}

.btn-pill {
  background: linear-gradient(135deg, #fff, #E5E7EB);
  color: #000;
  padding: 16px 32px;
  font-size: 15px;
  position: relative;
  overflow: hidden;
  isolation: isolate;
  transition: transform .2s, box-shadow .25s;
}
.btn-pill::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--p-accent), var(--p-accent-2));
  opacity: 0;
  transition: opacity .25s;
  z-index: -1;
}
.btn-pill > * { position: relative; z-index: 1; }
.btn-pill:hover { transform: translateY(-2px); box-shadow: 0 12px 30px -10px var(--p-glow); }
.btn-pill:hover::before { opacity: 1; }

.btn-pill-outline {
  background: rgba(255,255,255,0.02);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 15px 28px;
  font-size: 15px;
  transition: border-color .2s, color .2s, background .2s, transform .2s;
}
.btn-pill-outline:hover {
  border-color: var(--p-accent);
  color: var(--p-accent);
  transform: translateY(-2px);
  background: rgba(255,255,255,0.04);
}

.hero-actions, .page-actions, .btn-row, .project-links, .contact-strip-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  align-items: center;
}

/* ============================================
   HEADER
   ============================================ */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 20px 32px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 32px;
  align-items: center;
  transition: padding .25s, background .25s, border-color .25s;
  background: rgba(7,9,12,0);
  border-bottom: 1px solid transparent;
}
.header.scrolled {
  padding: 14px 32px;
  background: rgba(7,9,12,0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--border);
}

/* Logo with image — replaces former colored gradient square */
.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(15px, 1.5vw, 19px);
  letter-spacing: 0.02em;
  color: var(--text);
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.logo-img {
  width: 34px;
  height: auto;
  display: block;
  filter: drop-shadow(0 0 14px rgba(34, 211, 238, 0.35));
  transition: filter .3s, transform .35s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.logo:hover .logo-img {
  filter: drop-shadow(0 0 22px rgba(34, 211, 238, 0.6));
  transform: rotate(-6deg) scale(1.08);
}

.desktop-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.65);
}
.desktop-nav a { position: relative; padding: 6px 0; }
.desktop-nav a::after {
  content: "";
  position: absolute;
  left: 50%; bottom: 0;
  width: 0; height: 1px;
  background: var(--p-accent);
  transition: width .25s, left .25s;
}
.desktop-nav a:hover { color: var(--text); }
.desktop-nav a:hover::after { width: 100%; left: 0; }

.menu-btn, .menu-close {
  background: rgba(255,255,255,0.04);
  color: var(--text);
  padding: 12px 22px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: border-color .2s, color .2s, transform .2s;
}
.menu-btn:hover, .menu-close:hover {
  border-color: var(--p-accent);
  color: var(--p-accent);
  transform: translateY(-1px);
}

/* CSS hamburger icon for menu button */
.menu-btn .menu-icon {
  position: relative;
  width: 16px;
  height: 12px;
  display: inline-block;
  flex-shrink: 0;
}
.menu-btn .menu-icon::before,
.menu-btn .menu-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 1.5px;
  background: var(--p-accent);
  border-radius: 2px;
  transition: background .2s, width .2s;
}
.menu-btn .menu-icon::before { top: 2px; }
.menu-btn .menu-icon::after  { bottom: 2px; width: 70%; }
.menu-btn:hover .menu-icon::after { width: 100%; }

.menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(7,9,12,0.96);
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 28px;
  padding: 40px 20px;
}
.menu-overlay.open { display: flex; }
.menu-overlay a {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 5vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
  transition: color .2s, transform .2s;
}
.menu-overlay a:hover { color: var(--p-accent); transform: translateX(8px); }
.menu-close {
  position: absolute;
  top: 20px; right: 32px;
  padding: 10px 20px;
  font-size: 13px;
}

/* ============================================
   HERO (index) — animated background orbs
   ============================================ */
.hero {
  min-height: calc(100vh - 40px);
  padding: 140px 0 60px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  filter: blur(80px);
  will-change: transform;
}
.hero::before {
  top: 5%; left: -8%;
  width: 540px; height: 540px;
  background: radial-gradient(circle, var(--p-accent) 0%, transparent 70%);
  opacity: 0.22;
  animation: hero-orb-a 22s ease-in-out infinite;
}
.hero::after {
  bottom: -12%; right: -10%;
  width: 620px; height: 620px;
  background: radial-gradient(circle, var(--p-accent-2) 0%, transparent 70%);
  opacity: 0.18;
  animation: hero-orb-b 28s ease-in-out infinite;
}
@keyframes hero-orb-a {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50%      { transform: translate(120px, 80px) scale(1.18); }
}
@keyframes hero-orb-b {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50%      { transform: translate(-90px, -60px) scale(0.88); }
}

.hero-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
  width: 100%;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 7.5vw, 6rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
  font-weight: 600;
  background: linear-gradient(135deg, #fff 0%, #E5E7EB 40%, var(--p-accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-role {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 1.8vw, 1.5rem);
  line-height: 1.3;
  color: var(--text);
  font-weight: 500;
}

.hero-lead {
  max-width: 560px;
  color: var(--text-muted);
  font-size: 17px;
  line-height: 1.65;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 12px;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(255,255,255,0.02), rgba(255,255,255,0));
}
.hero-metric-num {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 600;
  line-height: 1;
  background: linear-gradient(135deg, #fff, var(--p-accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 6px;
}
.hero-metric-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ============================================
   MEDIA PLACEHOLDERS (hero-visual gets aurora animation)
   ============================================ */
.media-placeholder,
.hero-visual,
.architecture-visual,
.evidence-image,
.project-image {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.18);
}
.media-placeholder::before,
.hero-visual::before,
.architecture-visual::before,
.evidence-image::before,
.project-image::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg,  transparent 0, transparent 39px, rgba(255,255,255,0.04) 40px),
    repeating-linear-gradient(90deg, transparent 0, transparent 39px, rgba(255,255,255,0.04) 40px);
  pointer-events: none;
}
.media-placeholder::after,
.hero-visual::after,
.architecture-visual::after,
.evidence-image::after,
.project-image::after {
  content: attr(data-placeholder);
  position: relative;
  z-index: 1;
}

/* Hero visual on index page — aurora gradient that drifts */
.hero-visual {
  aspect-ratio: 4 / 5;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(ellipse at 20% 25%, var(--p-accent-dim) 0%, transparent 55%),
    radial-gradient(ellipse at 80% 75%, var(--p-accent-soft) 0%, transparent 55%),
    linear-gradient(135deg, var(--p-grad-a) 0%, var(--p-grad-b) 100%);
  background-size: 200% 200%, 200% 200%, 100% 100%;
  background-position: 0% 0%, 100% 100%, 0 0;
  box-shadow: var(--shadow-card);
  animation: aurora-shift 18s ease-in-out infinite;
}
@keyframes aurora-shift {
  0%, 100% { background-position: 0% 0%, 100% 100%, 0 0; }
  50%      { background-position: 100% 100%, 0% 0%, 0 0; }
}

/* Per-project tones — architecture-visual + evidence-image keep simple bg */
body.p-cyan .architecture-visual,
body.p-cyan .evidence-image    { background: linear-gradient(135deg, #0B2033 0%, #163955 50%, #0B2033 100%); }
body.p-teal .architecture-visual,
body.p-teal .evidence-image    { background: linear-gradient(135deg, #0B2A28 0%, #155249 50%, #0B2A28 100%); }
body.p-violet .architecture-visual,
body.p-violet .evidence-image  { background: linear-gradient(135deg, #1A0F2E 0%, #2E1B54 50%, #1A0F2E 100%); }

/* Per-project hero-visual gets the multi-layer aurora */
body.p-cyan .hero-visual {
  background:
    radial-gradient(ellipse at 20% 25%, rgba(34,211,238,0.20) 0%, transparent 55%),
    radial-gradient(ellipse at 80% 75%, rgba(34,211,238,0.10) 0%, transparent 55%),
    linear-gradient(135deg, #0B2033 0%, #163955 50%, #0B2033 100%);
  background-size: 200% 200%, 200% 200%, 100% 100%;
  background-position: 0% 0%, 100% 100%, 0 0;
}
body.p-teal .hero-visual {
  background:
    radial-gradient(ellipse at 20% 25%, rgba(45,212,191,0.20) 0%, transparent 55%),
    radial-gradient(ellipse at 80% 75%, rgba(45,212,191,0.10) 0%, transparent 55%),
    linear-gradient(135deg, #0B2A28 0%, #155249 50%, #0B2A28 100%);
  background-size: 200% 200%, 200% 200%, 100% 100%;
  background-position: 0% 0%, 100% 100%, 0 0;
}
body.p-violet .hero-visual {
  background:
    radial-gradient(ellipse at 20% 25%, rgba(167,139,250,0.20) 0%, transparent 55%),
    radial-gradient(ellipse at 80% 75%, rgba(167,139,250,0.10) 0%, transparent 55%),
    linear-gradient(135deg, #1A0F2E 0%, #2E1B54 50%, #1A0F2E 100%);
  background-size: 200% 200%, 200% 200%, 100% 100%;
  background-position: 0% 0%, 100% 100%, 0 0;
}

/* On project pages — hero-visual gets a different ratio */
.page-shell .hero-visual {
  aspect-ratio: 5 / 4;
  min-height: 360px;
}

/* ============================================
   CORE AREAS (engineering zones)
   ============================================ */
.project-section-head, .split-head {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 64px;
  align-items: start;
  margin-bottom: 32px;
}

.skills-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.skill-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0));
  transition: border-color .25s, transform .25s, background .25s;
  cursor: pointer;
}
.skill-item:hover { border-color: var(--border-hover); transform: translateY(-2px); }
.skill-item.open {
  border-color: var(--p-accent-dim);
  background: linear-gradient(180deg, var(--p-accent-soft), rgba(255,255,255,0));
}

.skill-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
}

.skill-toggle {
  width: 28px; height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--border);
  font-size: 16px;
  color: var(--p-accent);
  transition: transform .3s, background .2s;
}
.skill-item.open .skill-toggle {
  transform: rotate(45deg);
  background: var(--p-accent);
  color: #000;
  border-color: var(--p-accent);
}

.skill-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease, padding-top .4s ease;
}
.skill-item.open .skill-body {
  max-height: 320px;
  padding-top: 16px;
}
.skill-body p {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.65;
}

/* ============================================
   PORTFOLIO GRID — soft accent glow behind cards
   ============================================ */
.portfolio { position: relative; overflow: hidden; }
.portfolio::before {
  content: "";
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 1100px; height: 600px;
  background: radial-gradient(ellipse, var(--p-accent-soft) 0%, transparent 65%);
  pointer-events: none;
  z-index: 0;
  opacity: 0.7;
}
.portfolio .container { position: relative; z-index: 1; }

.portfolio-head {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 64px;
  align-items: start;
  margin-bottom: 48px;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.project-card {
  --card-accent: var(--accent);
  --card-glow: var(--accent-dim);
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, var(--bg-card), var(--bg-card-2));
  transition: transform .3s, border-color .25s, box-shadow .3s;
  overflow: hidden;
}
.project-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--card-accent), transparent);
  opacity: 0;
  transition: opacity .3s;
}
.project-card:hover {
  transform: translateY(-6px);
  border-color: var(--card-accent);
  box-shadow: 0 20px 60px -20px var(--card-glow);
}
.project-card:hover::before { opacity: 1; }

.project-card.tone-cyan    { --card-accent: #22D3EE; --card-glow: rgba(34,211,238,0.25); }
.project-card.tone-emerald { --card-accent: #2DD4BF; --card-glow: rgba(45,212,191,0.22); }
.project-card.tone-violet  { --card-accent: #A78BFA; --card-glow: rgba(167,139,250,0.22); }

.project-media {
  position: relative;
  display: block;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 16 / 10;
}

.project-image {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #0d2a3a 0%, #123a4a 50%, #0d2a3a 100%);
}
.project-card.tone-cyan .project-image    { background: linear-gradient(135deg, #0B2033 0%, #163955 50%, #0B2033 100%); }
.project-card.tone-emerald .project-image { background: linear-gradient(135deg, #0B2A28 0%, #155249 50%, #0B2A28 100%); }
.project-card.tone-violet .project-image  { background: linear-gradient(135deg, #1A0F2E 0%, #2E1B54 50%, #1A0F2E 100%); }

.project-arrow {
  position: absolute;
  top: 16px; right: 16px;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(0,0,0,0.55);
  border: 1px solid rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--card-accent);
  font-size: 17px;
  transition: transform .3s, background .2s, color .2s, border-color .2s;
  z-index: 2;
}
.project-card:hover .project-arrow {
  background: var(--card-accent);
  color: #000;
  border-color: var(--card-accent);
  transform: rotate(-45deg) scale(1.08);
}

.project-badge {
  position: absolute;
  top: 16px; left: 16px;
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  background: rgba(0,0,0,0.55);
  border: 1px solid rgba(255,255,255,0.1);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--card-accent);
  letter-spacing: 0.05em;
  z-index: 2;
}

.project-body {
  padding: 24px 8px 8px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  flex: 1;
}

.project-title {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 600;
  line-height: 1.1;
  display: flex;
  align-items: center;
  gap: 10px;
}
.project-title .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--card-accent);
  box-shadow: 0 0 12px var(--card-accent);
}

.project-one-liner {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.55;
}

.project-stack-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
  padding-top: 8px;
}

.stack-chip {
  display: inline-flex;
  align-items: center;
  padding: 5px 11px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}
.project-card:hover .stack-chip { border-color: var(--border-hover); }

.project-links {
  padding-top: 12px;
  border-top: 1px solid var(--border);
  margin-top: 4px;
}
.project-links span {
  font-family: var(--font-display);
  font-size: 14px;
  color: var(--card-accent);
  font-weight: 500;
}

/* ============================================
   TECHNICAL TRUST
   ============================================ */
.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.trust-card {
  position: relative;
  padding: 28px 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, var(--bg-card), var(--bg-card-2));
  transition: transform .3s, border-color .25s, box-shadow .3s;
  overflow: hidden;
}
.trust-card::before {
  content: "";
  position: absolute;
  top: 0; left: 20px; right: 20px;
  height: 2px;
  background: linear-gradient(90deg, var(--p-accent), transparent);
}
.trust-card:hover {
  transform: translateY(-3px);
  border-color: var(--p-accent-dim);
  box-shadow: 0 20px 40px -20px var(--p-glow);
}
.trust-card h3 {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 500;
  margin: 10px 0 10px;
}
.trust-card p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.6;
}

/* ============================================
   CONTACT STRIP
   ============================================ */
.contact { position: relative; overflow: hidden; }
.contact::before {
  content: "";
  position: absolute;
  top: -200px; left: 50%;
  transform: translateX(-50%);
  width: 900px; height: 600px;
  background: radial-gradient(circle, var(--p-glow) 0%, transparent 65%);
  pointer-events: none;
  z-index: 0;
}

.contact-strip-card {
  position: relative;
  z-index: 1;
  padding: 48px;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, rgba(20,20,24,0.9), rgba(10,12,16,0.9));
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: center;
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.contact-strip-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--p-accent), var(--p-accent-2), var(--p-accent));
  background-size: 200% 100%;
  animation: shimmer 6s linear infinite;
}
@keyframes shimmer {
  from { background-position: 0 0; }
  to   { background-position: 200% 0; }
}

.contact-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.contact-desc {
  font-size: 16px;
  line-height: 1.65;
  color: var(--text-muted);
  max-width: 520px;
}

.contact-strip-actions {
  justify-content: flex-end;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
}
.contact-strip-actions .row-h {
  display: flex; gap: 10px; flex-wrap: wrap;
  justify-content: flex-end;
}

.contact-link {
  padding: 12px 20px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  transition: border-color .2s, color .2s, background .2s, transform .2s;
}
.contact-link:hover {
  border-color: var(--p-accent);
  color: var(--p-accent);
  transform: translateY(-1px);
}
.contact-link.primary {
  background: var(--p-accent);
  color: #000;
  border-color: var(--p-accent);
}
.contact-link.primary:hover {
  background: var(--p-accent-2);
  border-color: var(--p-accent-2);
  color: #000;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  border-top: 1px solid var(--border);
  padding: 28px 0 32px;
  margin-top: 80px;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 12px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.footer-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}
.footer a:hover { color: var(--p-accent); }

/* ============================================
   PROJECT PAGE HERO — pulsing dual glow
   ============================================ */
.page-shell main { padding-top: 0; }

.page-hero {
  padding: 140px 0 80px;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  top: -100px; right: -100px;
  width: 620px; height: 620px;
  background: radial-gradient(circle, var(--p-glow) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
  animation: glow-pulse 9s ease-in-out infinite;
}
.page-hero::after {
  content: "";
  position: absolute;
  bottom: -180px; left: -120px;
  width: 540px; height: 540px;
  background: radial-gradient(circle, var(--p-accent-soft) 0%, transparent 65%);
  pointer-events: none;
  z-index: 0;
  animation: glow-pulse 11s ease-in-out infinite reverse;
}
@keyframes glow-pulse {
  0%, 100% { opacity: 0.7; transform: scale(1); }
  50%      { opacity: 1;   transform: scale(1.12); }
}

.page-hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: start;
  position: relative;
  z-index: 1;
}

.page-hero-copy {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.015);
}
.page-meta-row .meta-cell {
  flex: 1 1 200px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 160px;
}
.page-meta-row .meta-cell + .meta-cell {
  border-left: 1px solid var(--border);
  padding-left: 16px;
}
.page-meta-row .meta-cell p {
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
}
.page-meta-row .stack-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

/* ============================================
   OVERVIEW / WHAT I BUILT / NOTES CARDS
   ============================================ */
.overview-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.build-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.overview-card, .build-card, .note-card {
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255,255,255,0.015), rgba(255,255,255,0));
  transition: border-color .25s, transform .25s;
  position: relative;
}
.overview-card:hover, .build-card:hover, .note-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.overview-card h3, .build-card h3, .note-card h3 {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.build-card h3::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--p-accent);
  box-shadow: 0 0 10px var(--p-accent);
  flex-shrink: 0;
}

.overview-card p, .build-card p, .note-card p {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.65;
}

.build-card { padding: 24px; }
.build-card h3 { font-size: 17px; }
.build-card p { font-size: 14px; }

.note-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

/* ============================================
   ARCHITECTURE SECTION
   ============================================ */
.architecture-shell {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 20px;
  align-items: stretch;
}

.architecture-visual {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  min-height: 500px;
}

.architecture-caption {
  padding: 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, var(--bg-card), var(--bg-card-2));
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: relative;
  overflow: hidden;
}
.architecture-caption::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 3px; height: 60px;
  background: linear-gradient(180deg, var(--p-accent), transparent);
}
.architecture-caption ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.architecture-caption li {
  position: relative;
  padding-left: 22px;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.6;
}
.architecture-caption li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--p-accent);
  font-family: var(--font-mono);
}
.architecture-caption li strong {
  color: var(--text);
  font-weight: 500;
}

/* ============================================
   EVIDENCE GALLERY
   ============================================ */
.gallery-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}
.gallery-head > div:first-child { max-width: 720px; }

.gallery-controls {
  display: flex;
  gap: 10px;
}

.gallery-btn {
  width: 48px; height: 48px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--p-accent);
  font-size: 18px;
  transition: border-color .2s, background .2s, transform .2s;
}
.gallery-btn:hover:not(:disabled) {
  border-color: var(--p-accent);
  background: var(--p-accent-soft);
  transform: translateY(-1px);
}
.gallery-btn:disabled { opacity: 0.4; cursor: default; }

.evidence-rail {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(340px, 440px);
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  padding: 4px 4px 16px;
}
.evidence-rail::-webkit-scrollbar { display: none; }

.evidence-card {
  scroll-snap-align: start;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, var(--bg-card), var(--bg-card-2));
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color .25s, transform .25s;
}
.evidence-card:hover {
  border-color: var(--p-accent-dim);
  transform: translateY(-2px);
}

.evidence-image {
  aspect-ratio: 16 / 10;
}

.evidence-body {
  padding: 24px 22px;
}
.evidence-body h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}
.evidence-body p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.6;
}

/* ============================================
   PROJECT NAVIGATION
   ============================================ */
.project-nav-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.nav-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 24px 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, var(--bg-card), var(--bg-card-2));
  transition: border-color .25s, transform .25s, background .25s;
  position: relative;
  overflow: hidden;
}
.nav-card:hover {
  border-color: var(--p-accent);
  transform: translateY(-2px);
}
.nav-card .nav-dir {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--p-accent);
}
.nav-card .nav-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 500;
  color: var(--text);
}
.nav-card.nav-next { text-align: right; }

/* ============================================
   REVEAL ANIMATIONS
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  .hero::before, .hero::after,
  .hero-visual,
  .page-hero::before, .page-hero::after,
  .contact-strip-card::before { animation: none; }
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1100px) {
  .portfolio-grid, .build-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .trust-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero-inner, .page-hero-grid, .architecture-shell, .contact-strip-card {
    grid-template-columns: 1fr;
  }
  .project-section-head, .split-head, .portfolio-head {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .skills-list { grid-template-columns: 1fr; }
  .evidence-rail { grid-auto-columns: minmax(320px, 75%); }
}

@media (max-width: 900px) {
  :root { --section-pad: 80px; }
  .container { padding: 0 20px; }
  .header { padding: 16px 20px; grid-template-columns: auto auto; justify-content: space-between; }
  .header.scrolled { padding: 10px 20px; }
  .desktop-nav { display: none; }
  .hero { padding-top: 120px; }
  .hero::before { width: 380px; height: 380px; }
  .hero::after  { width: 440px; height: 440px; }
  .hero-metrics { grid-template-columns: 1fr; gap: 12px; }
  .overview-grid, .note-grid, .trust-grid { grid-template-columns: 1fr; }
  .build-grid, .portfolio-grid { grid-template-columns: 1fr; }
  .contact-strip-actions { align-items: stretch; }
  .contact-strip-actions .row-h { justify-content: flex-start; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 16px; }
  .page-meta-row { flex-direction: column; }
  .page-meta-row .meta-cell + .meta-cell { border-left: none; border-top: 1px solid var(--border); padding-left: 0; padding-top: 16px; }
  .project-nav-grid { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .menu-btn, .menu-close { padding: 10px 16px; font-size: 13px; }
  .logo { font-size: 15px; gap: 10px; }
  .logo-img { width: 28px; }
  .hero-title { font-size: clamp(2.5rem, 11vw, 4rem); }
  .contact-strip-card { padding: 28px 24px; }
  .contact-title { font-size: 2rem; }
  .overview-card, .build-card, .note-card, .trust-card { padding: 22px 20px; }
  .architecture-visual { min-height: 360px; }
  .evidence-rail { grid-auto-columns: 88%; }
}