/* ============================================
   Somkiat Saksasichai (Heng) — Portfolio v2
   Light + Dark theme via CSS variables
   ============================================ */

/* ---------- LIGHT (default) ---------- */
:root {
  /* Surface */
  --bg-page:        #f8fafc;          /* slate-50 */
  --bg-section:     #ffffff;
  --bg-card:        rgba(255, 255, 255, 0.85);
  --bg-card-solid:  #ffffff;
  --bg-elevated:    rgba(15, 23, 42, 0.025);

  /* Text */
  --text-strong:    #0f172a;          /* slate-900 */
  --text-body:      #334155;          /* slate-700 */
  --text-muted:     #64748b;          /* slate-500 */
  --text-faint:     #94a3b8;          /* slate-400 */

  /* Border */
  --border:         rgba(15, 23, 42, 0.08);
  --border-strong:  rgba(15, 23, 42, 0.16);

  /* Accent */
  --accent:         #0891b2;          /* cyan-600 */
  --accent-bright:  #06b6d4;          /* cyan-500 */
  --accent-strong:  rgba(8, 145, 178, 0.5);
  --accent-soft:    rgba(8, 145, 178, 0.18);
  --accent-tint:    rgba(8, 145, 178, 0.07);
  --accent-glow:    rgba(8, 145, 178, 0.3);

  --accent-2:       #7c3aed;          /* violet-600 */
  --accent-2-soft:  rgba(124, 58, 237, 0.18);
  --accent-2-tint:  rgba(124, 58, 237, 0.07);

  --accent-3:       #2563eb;          /* blue-600 */

  /* Effects */
  --grid-color:     rgba(8, 145, 178, 0.18);
  --shadow-card:    0 8px 24px -8px rgba(15, 23, 42, 0.12);
  --shadow-hover:   0 25px 50px -15px rgba(8, 145, 178, 0.25);
  --shadow-cta:     0 0 30px rgba(8, 145, 178, 0.35);

  /* Cursor glow */
  --cursor-glow:    radial-gradient(circle, rgba(8, 145, 178, 0.25) 0%, transparent 60%);

  /* Scanline */
  --scanline-color: linear-gradient(to right, transparent, rgba(8, 145, 178, 0.6), transparent);

  /* Hero gradients */
  --hero-fade-rgb: 248, 250, 252;
}

/* ---------- DARK (.dark on <html>) ---------- */
html.dark {
  --bg-page:        #05070d;
  --bg-section:     #0a0e1a;
  --bg-card:        rgba(255, 255, 255, 0.025);
  --bg-card-solid:  #0f1424;
  --bg-elevated:    rgba(255, 255, 255, 0.04);

  --text-strong:    #f1f5f9;
  --text-body:      #cbd5e1;
  --text-muted:     #94a3b8;
  --text-faint:     #64748b;

  --border:         rgba(255, 255, 255, 0.08);
  --border-strong:  rgba(255, 255, 255, 0.18);

  --accent:         #22d3ee;          /* cyan-400 */
  --accent-bright:  #67e8f9;          /* cyan-300 */
  --accent-strong:  rgba(34, 211, 238, 0.5);
  --accent-soft:    rgba(34, 211, 238, 0.2);
  --accent-tint:    rgba(34, 211, 238, 0.08);
  --accent-glow:    rgba(34, 211, 238, 0.4);

  --accent-2:       #a78bfa;          /* violet-400 */
  --accent-2-soft:  rgba(167, 139, 250, 0.2);
  --accent-2-tint:  rgba(167, 139, 250, 0.08);

  --accent-3:       #3b82f6;          /* blue-500 */

  --grid-color:     rgba(34, 211, 238, 0.5);
  --shadow-card:    0 8px 24px -8px rgba(0, 0, 0, 0.4);
  --shadow-hover:   0 25px 50px -15px rgba(34, 211, 238, 0.3);
  --shadow-cta:     0 0 30px rgba(34, 211, 238, 0.5);

  --cursor-glow:    radial-gradient(circle, rgba(34, 211, 238, 0.4) 0%, transparent 60%);

  --scanline-color: linear-gradient(to right, transparent, rgba(34, 211, 238, 0.9), transparent);

  --hero-fade-rgb: 5, 7, 13;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

html, body {
  background: var(--bg-page);
  color: var(--text-body);
  transition: background-color 0.4s ease, color 0.4s ease;
}

/* Theme-aware utility shortcuts */
.surface-page { background: var(--bg-page); }
.text-strong  { color: var(--text-strong); }
.text-body    { color: var(--text-body); }
.text-muted   { color: var(--text-muted); }
.text-faint   { color: var(--text-faint); }

/* Scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-page); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  border-radius: 8px;
}
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* Selection */
::selection { background: var(--accent-soft); color: var(--text-strong); }

/* ============================================
   Grid background
   ============================================ */
.bg-grid {
  background-image:
    linear-gradient(var(--grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, rgba(0,0,0,0.5) 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, rgba(0,0,0,0.5) 0%, transparent 70%);
  opacity: 0.08;
}
html.dark .bg-grid { opacity: 0.06; }

/* ============================================
   Cursor glow
   ============================================ */
#cursor-glow {
  background: var(--cursor-glow);
}

/* ============================================
   Status dot (subtle pulse — replaces fast ping)
   ============================================ */
.status-dot {
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.5);
  animation: statusPulse 2.4s ease-out infinite;
}
@keyframes statusPulse {
  0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.5); }
  70% { box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

/* Soft breathing — clearly visible but relaxed */
.breathe-soft {
  animation: breatheSoft 5s ease-in-out infinite !important;
}
@keyframes breatheSoft {
  0%, 100% { opacity: 1;    transform: scale(1); }
  50%     { opacity: 0.4;  transform: scale(0.85); }
}

/* ============================================
   Loader (terminal-style)
   ============================================ */
.loader-cursor {
  display: inline-block;
  margin-left: 0.15rem;
  animation: loaderCursor 1.6s ease-in-out infinite;
}
@keyframes loaderCursor {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.2; }
}
.loader-bar {
  width: 0%;
  animation: loaderProgress 1.4s ease-out forwards;
}
@keyframes loaderProgress {
  0% { width: 0%; }
  100% { width: 100%; }
}

/* ============================================
   Navbar
   ============================================ */
#navbar.scrolled > div {
  background: color-mix(in srgb, var(--bg-page) 75%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  padding-top: 0.6rem;
  padding-bottom: 0.6rem;
}

.chip-glass {
  border: 1px solid var(--border);
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.nav-link {
  position: relative;
  padding: 0.4rem 0.95rem;
  font-size: 0.825rem;
  color: var(--text-body);
  border-radius: 9999px;
  transition: color 0.3s ease, background 0.3s ease;
}
.nav-link:hover { color: var(--accent); }
.nav-link.active {
  color: var(--accent);
  background: var(--accent-tint);
}

.mobile-menu-surface {
  background: color-mix(in srgb, var(--bg-section) 92%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-top-color: var(--border);
}

.mobile-link {
  padding: 0.6rem 0.5rem;
  font-size: 0.95rem;
  color: var(--text-body);
  border-left: 2px solid transparent;
  transition: all 0.3s ease;
}
.mobile-link:hover {
  color: var(--accent);
  border-left-color: var(--accent);
  padding-left: 1rem;
}

/* Theme toggle */
.theme-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 9999px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-body);
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.3s ease;
}
.theme-btn:hover {
  color: var(--accent);
  border-color: var(--accent-strong);
}
html:not(.dark) .theme-icon-dark { display: none; }
html.dark .theme-icon-light { display: none; }

/* CTA pill */
.cta-pill {
  background: var(--accent-tint);
  border: 1px solid var(--accent-strong);
  color: var(--accent);
}
.cta-pill:hover {
  background: var(--accent);
  color: var(--bg-page);
}

/* ============================================
   Hero — vignettes & overlays
   ============================================ */
.hero-vignette {
  background: linear-gradient(to bottom,
    rgba(var(--hero-fade-rgb), 0.4) 0%,
    transparent 30%,
    rgba(var(--hero-fade-rgb), 1) 100%);
}
.hero-radial {
  background: radial-gradient(ellipse at center,
    transparent 0%,
    rgba(var(--hero-fade-rgb), 0.6) 70%,
    rgba(var(--hero-fade-rgb), 1) 100%);
}

.status-pill {
  border: 1px solid var(--accent-strong);
  background: var(--accent-tint);
}

/* ============================================
   Buttons
   ============================================ */
.btn-primary {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.5rem;
  border-radius: 0.6rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-3));
  color: #ffffff;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  overflow: hidden;
  transition: all 0.3s ease;
  border: none;
}
html:not(.dark) .btn-primary { color: #ffffff; }
html.dark .btn-primary {
  background: var(--accent);
  color: #05070d;
}
.btn-primary:hover {
  box-shadow: var(--shadow-cta);
}
.btn-primary .group:hover & .fa-arrow-down,
.btn-primary:hover .fa-arrow-right { transform: translateX(2px); }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.5rem;
  border-radius: 0.6rem;
  border: 1px solid var(--border-strong);
  color: var(--text-strong);
  font-weight: 500;
  text-decoration: none;
  background: var(--bg-card);
  transition: all 0.3s ease;
}
.btn-secondary:hover {
  border-color: var(--accent-strong);
  background: var(--accent-tint);
  color: var(--accent);
}

/* ============================================
   Social icons (hero)
   ============================================ */
.social-icon {
  position: relative;
  display: inline-flex;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-muted);
  font-size: 1rem;
  transition: all 0.3s ease;
  overflow: hidden;
}
.social-icon::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  opacity: 0;
  transition: opacity 0.3s ease;
}
.social-icon i { position: relative; z-index: 1; }
.social-icon:hover {
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 8px 20px var(--accent-glow);
}
.social-icon:hover::before { opacity: 1; }

/* ============================================
   Portrait card (hero & about)
   ============================================ */
.portrait-glow {
  background: linear-gradient(90deg,
    var(--accent-soft),
    var(--accent-2-soft),
    var(--accent-soft));
}
.portrait-frame {
  border: 1px solid var(--border);
  background: linear-gradient(135deg, var(--bg-card), transparent);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.portrait-overlay {
  background: linear-gradient(135deg,
    var(--accent-soft),
    transparent 50%,
    var(--accent-2-soft));
}

.corner-bracket {
  position: absolute;
  pointer-events: none;
}
.corner-bracket[data-corner="tl"] { border-left: 2px solid var(--accent); border-top: 2px solid var(--accent); }
.corner-bracket[data-corner="tr"] { border-right: 2px solid var(--accent); border-top: 2px solid var(--accent); }
.corner-bracket[data-corner="bl"] { border-left: 2px solid var(--accent); border-bottom: 2px solid var(--accent); }
.corner-bracket[data-corner="br"] { border-right: 2px solid var(--accent); border-bottom: 2px solid var(--accent); }

.portrait-badge {
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg-section) 80%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.chip-float {
  border: 1px solid var(--border);
  background: var(--bg-section);
  color: var(--text-strong);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-card);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.chip-float:hover {
  border-color: var(--accent-strong);
  box-shadow: var(--shadow-hover);
}

/* Scroll indicator */
.scroll-indicator:hover { color: var(--accent); }
.scroll-indicator-line {
  background: linear-gradient(to bottom, var(--accent), transparent);
}

/* ============================================
   About
   ============================================ */
.role-pill {
  background: var(--accent-tint);
  border: 1px solid var(--accent-strong);
  color: var(--accent);
}

.cert-badge {
  border: 1px solid var(--accent-strong);
  background: color-mix(in srgb, var(--bg-section) 90%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-card);
}

.info-card {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 0.9rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  transition: all 0.3s ease;
}
.info-card:hover {
  border-color: var(--accent-strong);
  background: var(--accent-tint);
  transform: translateX(4px);
}
.info-card > i {
  font-size: 1.25rem;
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--accent-tint);
  flex-shrink: 0;
}
.info-link { transition: color 0.3s ease; }
.info-link:hover { color: var(--accent); }

/* ============================================
   Sections background variants
   ============================================ */
.section-blob {
  background: var(--accent-tint);
}
.services-bg-fade {
  background: linear-gradient(to bottom, transparent, var(--bg-elevated), transparent);
}
.contact-bg-fade {
  background: linear-gradient(to bottom, transparent, var(--accent-tint), transparent);
}

/* ============================================
   Skill cards
   ============================================ */
.skill-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 1.5rem 0.75rem;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: all 0.4s ease;
  transform-style: preserve-3d;
  overflow: hidden;
}
.skill-card::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: 16px;
  padding: 1px;
  background: linear-gradient(135deg, transparent, var(--accent-strong), transparent);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.4s ease;
}
.skill-card:hover {
  border-color: var(--accent-strong);
  background: var(--accent-tint);
  box-shadow: var(--shadow-hover);
}
.skill-card:hover::before { opacity: 1; }
.skill-card img {
  height: 48px;
  width: auto;
  max-width: 100%;
  object-fit: contain;
  transition: all 0.4s ease;
}
/* Logo treatment per theme */
html:not(.dark) .skill-card img {
  filter: drop-shadow(0 4px 10px rgba(15, 23, 42, 0.1));
}
html.dark .skill-card img {
  background: #ffffff;
  padding: 8px 14px;
  border-radius: 10px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
  filter: none;
}
html:not(.dark) .skill-card:hover img {
  filter: drop-shadow(0 0 18px var(--accent-glow)) brightness(1.05);
  transform: scale(1.08);
}
html.dark .skill-card:hover img {
  box-shadow: 0 0 24px var(--accent-glow), 0 4px 14px rgba(0, 0, 0, 0.35);
  transform: scale(1.08);
}
.skill-card span {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  text-transform: uppercase;
}

/* ============================================
   Certification cards
   ============================================ */
.cert-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 1.5rem 1.25rem;
  border-radius: 1rem;
  border: 1px solid var(--border);
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: all 0.4s ease;
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.cert-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-tint), transparent 70%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}
.cert-card > * { position: relative; z-index: 1; }
.cert-card:hover {
  border-color: var(--accent-strong);
  box-shadow: var(--shadow-hover);
}
.cert-card:hover::before { opacity: 1; }

.cert-logo {
  display: inline-flex;
  align-items: center;
  height: 56px;
  margin-bottom: 1rem;
}

/* Brand image logos — wide rectangle for wordmarks */
.cert-logo-img {
  width: 100%;
  max-width: 170px;
  justify-content: flex-start;
}
.cert-logo-img img {
  max-height: 100%;
  max-width: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  object-position: left center;
}
html:not(.dark) .cert-logo-img img {
  filter: drop-shadow(0 2px 6px rgba(15, 23, 42, 0.08));
}
html.dark .cert-logo-img img {
  background: #ffffff;
  padding: 6px 10px;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35);
  box-sizing: border-box;
  max-height: 100%;
}

/* Mono badge — square colored box (for Specialized Training) */
.cert-logo-mono {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  justify-content: center;
}

/* Monogram tones — used when no brand logo available */
.cert-logo-mono {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  border: 1px solid;
}
.cert-logo-mono[data-tone="orange"]        { background: rgba(249, 115, 22, 0.12); border-color: rgba(249, 115, 22, 0.4);  color: #ea580c; }
.cert-logo-mono[data-tone="orange-strong"] { background: rgba(250, 88, 45, 0.14);  border-color: rgba(250, 88, 45, 0.45);  color: #fa582d; font-size: 1.1rem; }
.cert-logo-mono[data-tone="blue"]          { background: rgba(14, 165, 233, 0.12); border-color: rgba(14, 165, 233, 0.4);  color: #0284c7; }
.cert-logo-mono[data-tone="blue-strong"]   { background: rgba(0, 120, 212, 0.12);  border-color: rgba(0, 120, 212, 0.45);  color: #0078d4; font-size: 1.1rem; }
.cert-logo-mono[data-tone="red"]           { background: rgba(220, 38, 38, 0.12);  border-color: rgba(220, 38, 38, 0.4);   color: #dc2626; }
.cert-logo-mono[data-tone="violet"]        { background: var(--accent-2-tint);     border-color: var(--accent-2-soft);     color: var(--accent-2); font-size: 1.3rem; }

html.dark .cert-logo-mono[data-tone="orange"]        { color: #fb923c; }
html.dark .cert-logo-mono[data-tone="orange-strong"] { color: #fb7945; }
html.dark .cert-logo-mono[data-tone="blue"]          { color: #38bdf8; }
html.dark .cert-logo-mono[data-tone="blue-strong"]   { color: #60a5fa; }
html.dark .cert-logo-mono[data-tone="red"]           { color: #f87171; }

.cert-card h4 {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.01em;
  margin: 0 0 0.25rem 0;
}

.cert-count {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 0.85rem;
}

.cert-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: auto;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border);
}

.cert-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  color: var(--text-body);
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: all 0.3s ease;
}
.cert-card:hover .cert-badge {
  background: var(--accent-tint);
  border-color: var(--accent-strong);
  color: var(--accent);
}

/* Total certifications summary */
.cert-total {
  padding: 1rem 1.75rem;
  border-radius: 9999px;
  border: 1px solid var(--accent-strong);
  background: var(--accent-tint);
  max-width: fit-content;
  margin-left: auto;
  margin-right: auto;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.cert-total-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
}
.cert-total-text {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--text-body);
  letter-spacing: 0.04em;
}

/* ============================================
   Education card
   ============================================ */
.edu-card {
  display: grid;
  grid-template-columns: 1fr;
  border-radius: 1rem;
  border: 1px solid var(--border);
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  overflow: hidden;
  transition: all 0.4s ease;
  box-shadow: var(--shadow-card);
}
@media (min-width: 640px) {
  .edu-card {
    grid-template-columns: 280px 1fr;
    min-height: 220px;
  }
}
.edu-card:hover {
  border-color: var(--accent-strong);
  box-shadow: var(--shadow-hover);
}

.edu-image-fade {
  background: linear-gradient(to top, var(--bg-section), color-mix(in srgb, var(--bg-section) 40%, transparent), transparent);
}

.edu-year-pill[data-tone="cyan"] {
  background: var(--accent-tint);
  border: 1px solid var(--accent-strong);
  color: var(--accent);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.edu-year-pill[data-tone="violet"] {
  background: var(--accent-2-tint);
  border: 1px solid var(--accent-2-soft);
  color: var(--accent-2);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.tag-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.8rem;
  border-radius: 9999px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--text-body);
}

/* ============================================
   Service cards
   ============================================ */
.service-card {
  position: relative;
  padding: 2rem 1.75rem;
  border-radius: 1.25rem;
  border: 1px solid var(--border);
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: all 0.4s ease;
  transform-style: preserve-3d;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.service-card:hover {
  border-color: var(--accent-strong);
  box-shadow: var(--shadow-hover);
}

.service-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--accent-tint);
  border: 1px solid var(--accent-strong);
  color: var(--accent);
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
  transition: all 0.4s ease;
}
.service-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-strong);
  margin-bottom: 0.6rem;
}
.service-card > p {
  color: var(--text-body);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 1.25rem;
}
.service-list {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}
.service-list li {
  position: relative;
  padding-left: 1.25rem;
  font-size: 0.825rem;
  color: var(--text-body);
  margin-bottom: 0.4rem;
  font-family: 'JetBrains Mono', monospace;
}
.service-list li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* ============================================
   Experience timeline
   ============================================ */
.timeline-line {
  background: linear-gradient(to bottom, transparent, var(--accent-strong), transparent);
}

.timeline-row {
  position: relative;
  display: flex;
  align-items: center;
  padding-left: 2.5rem;
}
@media (min-width: 768px) {
  .timeline-row { padding-left: 0; }
}

.timeline-card {
  position: relative;
  width: 100%;
  padding: 1.15rem 1.4rem;
  border-radius: 0.9rem;
  border: 1px solid var(--border);
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: all 0.4s ease;
  box-shadow: var(--shadow-card);
}
@media (min-width: 768px) {
  .timeline-card { max-width: calc(50% - 4rem); }
}
.timeline-card:hover {
  border-color: var(--accent-strong);
  box-shadow: var(--shadow-hover);
}
.timeline-card-current {
  border-color: var(--accent-strong);
  box-shadow: 0 0 0 1px var(--accent-strong), var(--shadow-card);
}

.timeline-year {
  display: inline-flex;
  padding: 0.25rem 0.7rem;
  border-radius: 9999px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}
.timeline-year-current {
  background: var(--accent-tint);
  color: var(--accent);
  border-color: var(--accent-strong);
}

.timeline-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-strong);
  margin-bottom: 0.3rem;
}
.timeline-card .role {
  font-size: 0.9rem;
  color: var(--accent);
  font-weight: 500;
}
.timeline-list {
  margin-top: 0.6rem;
  padding-left: 1rem;
  font-size: 0.825rem;
  color: var(--text-body);
}
.timeline-list li { list-style: disc; margin-bottom: 0.25rem; }

.timeline-dot {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 14px;
  height: 14px;
  border-radius: 9999px;
  background: var(--accent);
  opacity: 0.6;
  box-shadow: 0 0 0 4px var(--accent-tint);
}
.timeline-dot-current {
  opacity: 1;
  box-shadow: 0 0 0 4px var(--accent-tint), 0 0 15px var(--accent-glow);
}
@media (min-width: 768px) {
  .timeline-dot { left: 50%; }
}

/* ============================================
   Contact method cards (4-up grid)
   ============================================ */
.contact-method-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 1.75rem 1.5rem;
  border-radius: 1.25rem;
  border: 1px solid var(--border);
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  text-decoration: none;
  transition: all 0.4s ease;
  box-shadow: var(--shadow-card);
  overflow: hidden;
  min-height: 200px;
}
.contact-method-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-tint), transparent 70%);
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: 0;
}
.contact-method-card > * { position: relative; z-index: 1; }
.contact-method-card:hover {
  border-color: var(--accent-strong);
  box-shadow: var(--shadow-hover);
}
.contact-method-card:hover::before { opacity: 1; }
.contact-method-card:hover .contact-method-icon {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 8px 24px var(--accent-glow);
}

.contact-method-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--accent-tint);
  border: 1px solid var(--accent-strong);
  color: var(--accent);
  font-size: 1.35rem;
  margin-bottom: 0.5rem;
  transition: all 0.4s ease;
}

.contact-method-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--text-faint);
}

.contact-method-value {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-strong);
  word-break: break-word;
  line-height: 1.35;
  transition: color 0.3s ease;
}
.contact-method-card:hover .contact-method-value { color: var(--accent); }

.contact-method-arrow {
  margin-top: auto;
  padding-top: 0.75rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  text-transform: uppercase;
  transition: color 0.3s ease;
}
.contact-method-arrow i { transition: transform 0.3s ease; }
.contact-method-card:hover .contact-method-arrow { color: var(--accent); }
.contact-method-card:hover .contact-method-arrow i { transform: translateX(4px); }

/* ============================================
   Contact CTA banner
   ============================================ */
.contact-cta-banner {
  position: relative;
  margin-top: 3rem;
  padding: 2rem 1.75rem;
  border-radius: 1.5rem;
  border: 1px solid var(--accent-strong);
  background: linear-gradient(135deg, var(--accent-tint), var(--accent-2-tint));
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.contact-cta-banner::after {
  content: '';
  position: absolute;
  top: -40%;
  right: -10%;
  width: 360px;
  height: 360px;
  border-radius: 9999px;
  background: var(--accent);
  opacity: 0.12;
  filter: blur(90px);
  pointer-events: none;
}
.contact-cta-banner > * { position: relative; z-index: 1; }
@media (min-width: 768px) {
  .contact-cta-banner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 2.5rem 3rem;
  }
}

.contact-cta-text { max-width: 36rem; }
.contact-cta-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--accent);
  margin-bottom: 0.5rem;
}
.contact-cta-banner h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-strong);
  margin-bottom: 0.5rem;
  line-height: 1.2;
}
@media (min-width: 768px) {
  .contact-cta-banner h3 { font-size: 1.875rem; }
}
.contact-cta-banner p:not(.contact-cta-tag) {
  color: var(--text-body);
  line-height: 1.6;
}

/* ============================================
   Form fields (floating label)
   ============================================ */
.form-surface {
  border: 1px solid var(--border);
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-card);
}

.form-field { position: relative; }
.form-field input,
.form-field textarea {
  width: 100%;
  padding: 1.1rem 1rem 0.5rem;
  font-size: 0.95rem;
  color: var(--text-strong);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  outline: none;
  transition: all 0.3s ease;
  font-family: 'Space Grotesk', sans-serif;
}
.form-field textarea {
  padding-top: 1.3rem;
  resize: vertical;
  min-height: 130px;
}
.form-field input:focus,
.form-field textarea:focus {
  border-color: var(--accent-strong);
  background: var(--accent-tint);
  box-shadow: 0 0 0 3px var(--accent-tint);
}
.form-field label {
  position: absolute;
  left: 1rem;
  top: 0.9rem;
  font-size: 0.95rem;
  color: var(--text-muted);
  pointer-events: none;
  transition: all 0.2s ease;
  padding: 0 0.25rem;
}
.form-field input:focus + label,
.form-field input:not(:placeholder-shown) + label,
.form-field textarea:focus + label,
.form-field textarea:not(:placeholder-shown) + label {
  top: -0.5rem;
  left: 0.8rem;
  font-size: 0.7rem;
  color: var(--accent);
  background: var(--bg-section);
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.05em;
}

/* ============================================
   Footer
   ============================================ */
.footer-surface { border-top-color: var(--border); }

.footer-icon {
  display: inline-flex;
  width: 38px;
  height: 38px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: all 0.3s ease;
  text-decoration: none;
}
.footer-icon:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* ============================================
   Scroll-to-top
   ============================================ */
.scroll-top-btn {
  border: 1px solid var(--accent-strong);
  background: color-mix(in srgb, var(--bg-section) 80%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--accent);
}
.scroll-top-btn:hover {
  background: var(--accent);
  color: #ffffff;
}

/* ============================================
   Scroll reveal + scroll-to-top show
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

#scroll-top.is-visible {
  opacity: 1;
  pointer-events: auto;
}

/* ============================================
   Loader fade
   ============================================ */
#loader.hidden {
  opacity: 0;
  pointer-events: none;
}

/* ============================================
   Responsive tweaks
   ============================================ */
@media (max-width: 640px) {
  .skill-card img { height: 36px; }
  .timeline-card { padding: 1.25rem 1.25rem; }
}

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}
