/* =====================================================
   IQBAL — PORTFOLIO STYLESHEET  (v2, elegance pass)
   Dark terminal / cyber aesthetic, refined.
   Retheme everything from the tokens below.
====================================================== */

:root {
  --bg-base:      #070B16;   /* deeper navy — main background */
  --bg-surface:   #0F1626;   /* cards */
  --bg-elevated:  #18213A;   /* hover / elevated */
  --accent-cyan:  #18E6ED;   /* primary accent */
  --accent-violet:#A78BFA;   /* secondary accent */
  --accent-glow:  rgba(24, 230, 237, 0.15);
  --text-primary: #F2F6FF;
  --text-soft:    #AEB9CF;
  --text-muted:   #6B7791;
  --text-dim:     #344056;
  --border:       rgba(24, 230, 237, 0.12);
  --border-hover: rgba(24, 230, 237, 0.45);

  --font-display: 'Space Grotesk', sans-serif;
  --font-body:    'Inter', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 22px;

  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out:   cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background-color: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.7;
  background-image: radial-gradient(rgba(24,230,237,0.035) 1px, transparent 1px);
  background-size: 30px 30px;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
ul { list-style: none; }
button { font-family: inherit; }

/* Utility */
.mono { font-family: var(--font-mono); }
.cyan  { color: var(--accent-cyan); }
.violet { color: var(--accent-violet); }

.section-head { margin-bottom: 3rem; }

.section-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin-bottom: 0.6rem;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}
.section-label::before {
  content: '';
  width: 26px; height: 1px;
  background: var(--accent-cyan);
  opacity: 0.6;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4.4vw, 2.9rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.container {
  width: min(1140px, 92vw);
  margin-inline: auto;
}

section {
  padding-block: 110px;
  position: relative;
}

/* =====================================================
   SCROLLBAR
====================================================== */
::-webkit-scrollbar { width: 7px; }
::-webkit-scrollbar-track { background: var(--bg-base); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(var(--accent-cyan), var(--accent-violet));
  border-radius: 4px;
}

/* =====================================================
   AMBIENT LAYERS (hero)
====================================================== */
#particle-canvas {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
}
/* Slow-drifting aurora glows behind the hero */
.aurora {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.5;
  z-index: 0;
  pointer-events: none;
}
.aurora.a1 {
  width: 460px; height: 460px;
  top: -80px; left: -60px;
  background: radial-gradient(circle, rgba(24,230,237,0.35), transparent 70%);
  animation: drift1 18s ease-in-out infinite;
}
.aurora.a2 {
  width: 520px; height: 520px;
  bottom: -120px; right: -80px;
  background: radial-gradient(circle, rgba(167,139,250,0.30), transparent 70%);
  animation: drift2 22s ease-in-out infinite;
}
@keyframes drift1 {
  0%,100% { transform: translate(0,0) scale(1); }
  50%     { transform: translate(60px, 40px) scale(1.12); }
}
@keyframes drift2 {
  0%,100% { transform: translate(0,0) scale(1); }
  50%     { transform: translate(-50px, -30px) scale(1.08); }
}

/* =====================================================
   SCROLL PROGRESS BAR
====================================================== */
#scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px; width: 0%;
  z-index: 1100;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-violet));
  box-shadow: 0 0 12px rgba(24, 230, 237, 0.7);
  transition: width 0.1s linear;
}

/* =====================================================
   NAVBAR
====================================================== */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0 5vw;
  height: 66px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(7, 11, 22, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: background var(--transition), box-shadow var(--transition), height var(--transition), border-color var(--transition);
}
#navbar.scrolled {
  background: rgba(7, 11, 22, 0.92);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.45);
  border-bottom-color: var(--border);
  height: 60px;
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--accent-cyan);
  letter-spacing: -0.02em;
  transition: transform var(--transition);
}
.nav-logo:hover { transform: translateY(-1px); }
.nav-logo span { color: var(--text-primary); }

.nav-links { display: flex; gap: 2.4rem; }
.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  transition: color var(--transition);
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 1.5px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-violet));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.nav-links a:hover { color: var(--accent-cyan); }
.nav-links a:hover::after,
.nav-links a.active::after { transform: scaleX(1); }
.nav-links a.active { color: var(--accent-cyan); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
  background: none;
  border: none;
}
.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--accent-cyan);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-mobile {
  display: none;
  position: fixed;
  top: 66px; left: 0; right: 0;
  background: rgba(7, 11, 22, 0.97);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 1.5rem 5vw 2rem;
  flex-direction: column;
  gap: 1.2rem;
  z-index: 999;
}
.nav-mobile.open { display: flex; }
.nav-mobile a {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--text-muted);
  transition: color var(--transition), padding-left var(--transition);
}
.nav-mobile a:hover { color: var(--accent-cyan); padding-left: 6px; }

/* =====================================================
   HERO
====================================================== */
#hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: 66px;
  overflow: hidden;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 3.5rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

/* Availability status badge */
.hero-status {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-soft);
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 100px;
  background: rgba(24, 230, 237, 0.04);
  margin-bottom: 1.5rem;
}
.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #28C840;
  box-shadow: 0 0 0 0 rgba(40, 200, 64, 0.7);
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%   { box-shadow: 0 0 0 0 rgba(40, 200, 64, 0.6); }
  70%  { box-shadow: 0 0 0 8px rgba(40, 200, 64, 0); }
  100% { box-shadow: 0 0 0 0 rgba(40, 200, 64, 0); }
}

.hero-greeting {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--accent-cyan);
  margin-bottom: 1.1rem;
  display: flex;
  align-items: center;
  gap: 0.7rem;
}
.hero-greeting::before { content: '//'; opacity: 0.4; }
.wave {
  display: inline-block;
  transform-origin: 70% 70%;
  animation: wave 2.4s ease-in-out infinite;
}
@keyframes wave {
  0%,60%,100% { transform: rotate(0); }
  10% { transform: rotate(14deg); } 20% { transform: rotate(-8deg); }
  30% { transform: rotate(14deg); } 40% { transform: rotate(-4deg); }
  50% { transform: rotate(10deg); }
}

.hero-name {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8.5vw, 6rem);
  font-weight: 700;
  line-height: 0.98;
  letter-spacing: -0.035em;
  margin-bottom: 1rem;
}
.hero-name .highlight {
  background: linear-gradient(115deg, var(--accent-cyan) 0%, var(--accent-violet) 50%, var(--accent-cyan) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradient-pan 5s ease infinite;
}
@keyframes gradient-pan {
  0%   { background-position: 0% center; }
  50%  { background-position: 100% center; }
  100% { background-position: 0% center; }
}

.hero-role {
  font-family: var(--font-mono);
  font-size: clamp(0.85rem, 2vw, 1.02rem);
  color: var(--text-muted);
  margin-bottom: 0.4rem;
  min-height: 1.6em;
}
.typed-role { color: var(--text-soft); }
.typed-role::after {
  content: '';
  display: inline-block;
  width: 8px; height: 1.05em;
  background: var(--accent-cyan);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink 1s step-end infinite;
}

/* Cross-fading rotator line (fade in / fade out) */
.hero-rotator {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.6vw, 1.5rem);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  min-height: 1.7em;
  margin-bottom: 2rem;
}
.hero-rotator .rot-word {
  display: inline-block;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.5s ease, transform 0.5s var(--ease-out);
  background: linear-gradient(115deg, var(--accent-cyan), var(--accent-violet));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-rotator .rot-word.in { opacity: 1; transform: translateY(0); }

.cursor {
  display: inline-block;
  width: 3px; height: 1.1em;
  background: var(--accent-cyan);
  margin-left: 4px;
  vertical-align: middle;
  animation: blink 1s step-end infinite;
}
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0; } }

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  margin-bottom: 2.4rem;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.9rem;
  background: linear-gradient(115deg, var(--accent-cyan), #14c4cb);
  color: #04141a;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(24, 230, 237, 0.35);
}
.btn-primary svg { transition: transform var(--transition); }
.btn-primary:hover svg { transform: translateX(4px); }
.btn-primary::before {
  content: '';
  position: absolute;
  top: 0; left: -120%;
  width: 60%; height: 100%;
  background: linear-gradient(120deg, transparent, rgba(255,255,255,0.5), transparent);
  transform: skewX(-20deg);
  transition: left 0.6s ease;
}
.btn-primary:hover::before { left: 140%; }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.9rem;
  background: transparent;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-hover);
  cursor: pointer;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}
.btn-ghost:hover {
  background: var(--accent-glow);
  color: var(--accent-cyan);
  transform: translateY(-2px);
}

/* Tech tag row — staggers in */
.hero-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  align-items: center;
}
.hero-tech .tech-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-right: 0.3rem;
}
.tech-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.32rem 0.7rem;
  border-radius: 5px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text-soft);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.5s ease, transform 0.5s var(--ease-out), border-color var(--transition), color var(--transition);
}
.tech-tag.in { opacity: 1; transform: translateY(0); }
.tech-tag:hover { border-color: var(--border-hover); color: var(--accent-cyan); }

/* Hero terminal graphic */
.hero-graphic {
  width: 100%;
  max-width: 420px;
  justify-self: end;
  background: linear-gradient(180deg, var(--bg-surface), #0b1120);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 30px 70px rgba(0,0,0,0.5), 0 0 60px rgba(24, 230, 237, 0.06);
  animation: float 6s ease-in-out infinite;
}
@keyframes float {
  0%,100% { transform: translateY(0); }
  50%     { transform: translateY(-10px); }
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 0.7rem 1.1rem;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
}
.terminal-dot { width: 11px; height: 11px; border-radius: 50%; transition: transform var(--transition); }
.hero-graphic:hover .terminal-dot { transform: scale(1.15); }
.terminal-dot.red { background: #FF5F57; }
.terminal-dot.yellow { background: #FFBD2E; }
.terminal-dot.green { background: #28C840; }
.terminal-title {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.64rem;
  color: var(--text-dim);
  letter-spacing: 0.08em;
}
.terminal-body {
  padding: 1.3rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 2;
  color: var(--text-muted);
  min-height: 340px;
}
.terminal-body .t-green { color: #28C840; }
.terminal-body .t-cyan { color: var(--accent-cyan); }
.terminal-body .t-violet { color: var(--accent-violet); }
.terminal-body .t-dim { color: var(--text-dim); }
.term-caret {
  display: inline-block;
  width: 7px; height: 1em;
  background: var(--accent-cyan);
  vertical-align: text-bottom;
  animation: blink 1s step-end infinite;
}

/* Scroll cue */
.scroll-cue {
  position: absolute;
  bottom: 1.8rem; left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  animation: cue-bob 2.2s ease-in-out infinite;
}
.scroll-cue .mouse {
  width: 22px; height: 34px;
  border: 1.5px solid var(--text-muted);
  border-radius: 12px;
  position: relative;
}
.scroll-cue .mouse::after {
  content: '';
  position: absolute;
  top: 6px; left: 50%;
  width: 3px; height: 6px;
  background: var(--accent-cyan);
  border-radius: 2px;
  transform: translateX(-50%);
  animation: wheel 1.6s ease-in-out infinite;
}
@keyframes wheel { 0% { opacity: 0; top: 6px; } 40% { opacity: 1; } 100% { opacity: 0; top: 16px; } }
@keyframes cue-bob { 0%,100% { transform: translateX(-50%) translateY(0); } 50% { transform: translateX(-50%) translateY(6px); } }

/* =====================================================
   SCROLL REVEAL  (fade + rise)
====================================================== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s var(--ease-out);
  will-change: opacity, transform;
}
.reveal.reveal-in { opacity: 1; transform: translateY(0); }
.reveal[style*="--d"] { transition-delay: var(--d); }

/* =====================================================
   ABOUT
====================================================== */
#about { border-top: 1px solid var(--border); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.about-text p {
  color: var(--text-soft);
  font-size: 1rem;
  margin-top: 1.2rem;
  line-height: 1.9;
}
.about-stats {
  display: flex;
  gap: 2.5rem;
  margin-top: 2.6rem;
  flex-wrap: wrap;
}
.stat-item strong {
  display: block;
  font-family: var(--font-display);
  font-size: 2.1rem;
  font-weight: 700;
  background: linear-gradient(115deg, var(--accent-cyan), var(--accent-violet));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.stat-item span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.about-badges { display: flex; flex-direction: column; gap: 1rem; }
.badge-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem 1.4rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}
.badge-row:hover {
  border-color: var(--border-hover);
  background: var(--bg-elevated);
  transform: translateX(6px);
}
.badge-icon { font-size: 1.5rem; flex-shrink: 0; transition: transform var(--transition); }
.badge-row:hover .badge-icon { transform: scale(1.2) rotate(-6deg); }
.badge-info strong { display: block; font-family: var(--font-display); font-size: 0.92rem; font-weight: 600; }
.badge-info span { font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-muted); }

/* =====================================================
   FILTER BAR  (shared by Skills + Projects)
====================================================== */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 2.4rem;
}
.filter-btn {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  padding: 0.5rem 1.1rem;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition), background var(--transition), transform var(--transition);
}
.filter-btn:hover { color: var(--accent-cyan); border-color: var(--border-hover); }
.filter-btn.active {
  color: #04141a;
  background: linear-gradient(115deg, var(--accent-cyan), #14c4cb);
  border-color: transparent;
}

/* Fade for filtered items */
.filterable { transition: opacity 0.45s ease, transform 0.45s var(--ease-out); }
.filterable.is-hidden { opacity: 0; transform: scale(0.97); }

/* =====================================================
   SKILLS
====================================================== */
#skills { border-top: 1px solid var(--border); }
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}
.skill-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 2rem;
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition), opacity 0.45s ease;
}
.skill-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-5px);
  box-shadow: 0 18px 44px rgba(24, 230, 237, 0.07);
}
.skill-card::before {
  content: '';
  position: absolute;
  top: var(--my, 50%); left: var(--mx, 50%);
  width: 280px; height: 280px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(24,230,237,0.10), transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}
.skill-card:hover::before { opacity: 1; }
.skill-card-icon {
  font-size: 1.8rem;
  margin-bottom: 1rem;
  display: inline-block;
  transition: transform var(--transition);
}
.skill-card:hover .skill-card-icon { transform: translateY(-3px) scale(1.1); }
.skill-card-title {
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}
.skill-item { margin-bottom: 1.15rem; }
.skill-item:last-child { margin-bottom: 0; }
.skill-meta { display: flex; justify-content: space-between; margin-bottom: 0.45rem; }
.skill-name { font-family: var(--font-mono); font-size: 0.78rem; color: var(--text-soft); }
.skill-pct { font-family: var(--font-mono); font-size: 0.72rem; color: var(--accent-cyan); }
.skill-bar-track {
  height: 5px;
  background: var(--bg-elevated);
  border-radius: 3px;
  overflow: hidden;
}
.skill-bar-fill {
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-violet));
  width: 0;
  transition: width 1.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}
.skill-bar-fill::after {
  content: '';
  position: absolute;
  right: 0; top: 0; bottom: 0;
  width: 9px;
  background: rgba(255,255,255,0.75);
  filter: blur(3px);
}

/* =====================================================
   PROJECTS
====================================================== */
#projects { border-top: 1px solid var(--border); }
.projects-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 1.6rem;
  flex-wrap: wrap;
  gap: 1rem;
}
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 1.5rem;
}
.project-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition), transform 0.15s ease, box-shadow var(--transition), opacity 0.45s ease;
  transform-style: preserve-3d;
}
.project-card:hover {
  border-color: var(--border-hover);
  box-shadow: 0 22px 54px rgba(24, 230, 237, 0.09);
}
.project-thumb {
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--bg-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.project-thumb-placeholder {
  width: 100%; height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  letter-spacing: 0.1em;
}
.project-thumb-placeholder img {
  width: 100%; height: 100%;
  object-fit: contain;
  transition: transform 0.45s ease;
}
.project-card:hover .project-thumb-placeholder img { transform: scale(1.06); }
.project-card[data-cat="web"] .project-thumb { background: linear-gradient(135deg, #0a1a33 0%, #142046 100%); }
.project-card[data-cat="design"] .project-thumb { background: linear-gradient(135deg, #0F1F3D 0%, #1A1042 100%); }
.project-card[data-cat="app"] .project-thumb { background: linear-gradient(135deg, #051A1A 0%, #0D2B2B 100%); }
.project-card[data-cat="network"] .project-thumb { background: linear-gradient(135deg, #15053A 0%, #1F0A4A 100%); }

.project-chips {
  position: absolute;
  bottom: 0.75rem; left: 0.75rem;
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  z-index: 2;
}
.chip {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.06em;
  padding: 0.22rem 0.55rem;
  border-radius: 4px;
  background: rgba(2, 6, 12, 0.78);
  color: var(--accent-cyan);
  border: 1px solid rgba(255, 255, 255, 0.18);
  transition: border-color var(--transition);
}
.project-card:hover .chip { border-color: var(--border-hover); }
.project-body { padding: 1.6rem; flex: 1; display: flex; flex-direction: column; }
.project-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
  transition: color var(--transition);
}
.project-card:hover .project-title { color: var(--accent-cyan); }
.project-desc { font-size: 0.88rem; color: var(--text-muted); line-height: 1.7; flex: 1; }
.project-footer { margin-top: 1.4rem; display: flex; gap: 0.75rem; }
.btn-detail {
  flex: 1;
  text-align: center;
  padding: 0.62rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-hover);
  color: var(--accent-cyan);
  background: transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}
.btn-detail:hover { background: var(--accent-cyan); color: #04141a; transform: translateY(-2px); }

/* =====================================================
   CONTACT / FOOTER
====================================================== */
#contact { border-top: 1px solid var(--border); padding-block: 100px 64px; }
.contact-inner { text-align: center; max-width: 640px; margin-inline: auto; }
.contact-inner .section-label { justify-content: center; }
.contact-inner .section-label::before { display: none; }
.contact-inner .section-title { margin-top: 0.5rem; margin-bottom: 1rem; }
.contact-inner > p { color: var(--text-soft); font-size: 1.02rem; margin-bottom: 2.6rem; }

.social-links {
  display: flex;
  justify-content: center;
  gap: 1.2rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}
.social-link {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.75rem 1.5rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-soft);
  transition: border-color var(--transition), color var(--transition), background var(--transition), transform var(--transition);
}
.social-link:hover {
  border-color: var(--border-hover);
  color: var(--accent-cyan);
  background: var(--accent-glow);
  transform: translateY(-3px);
}
.social-link svg { transition: transform var(--transition); }
.social-link:hover svg { transform: scale(1.15); }

.footer-bar {
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* =====================================================
   BACK TO TOP
====================================================== */
#to-top {
  position: fixed;
  bottom: 1.6rem; right: 1.6rem;
  z-index: 1050;
  width: 46px; height: 46px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--border-hover);
  background: rgba(15, 22, 38, 0.85);
  backdrop-filter: blur(8px);
  color: var(--accent-cyan);
  cursor: pointer;
  opacity: 0;
  transform: translateY(16px) scale(0.9);
  pointer-events: none;
  transition: opacity var(--transition), transform var(--transition), background var(--transition), box-shadow var(--transition);
}
#to-top.show { opacity: 1; transform: translateY(0) scale(1); pointer-events: auto; }
#to-top:hover { background: var(--accent-cyan); color: #04141a; box-shadow: 0 8px 24px rgba(24, 230, 237, 0.3); }

/* =====================================================
   RESPONSIVE
====================================================== */
@media (max-width: 900px) {
  section { padding-block: 80px; }
  .hero-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero-graphic { display: none; }
  .scroll-cue { display: none; }
  .about-grid { grid-template-columns: 1fr; gap: 3rem; }
}
@media (max-width: 600px) {
  section { padding-block: 64px; }
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .projects-header { flex-direction: column; align-items: flex-start; }
  .footer-bar { flex-direction: column; text-align: center; }
}

/* =====================================================
   REDUCED MOTION
====================================================== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .cursor, .typed-role::after, .term-caret, .status-dot { animation: none; }
  .hero-graphic, .wave, .hero-name .highlight, .aurora, .scroll-cue { animation: none; }
  .skill-bar-fill { transition: none; }
  .reveal, .hero-rotator .rot-word, .tech-tag { opacity: 1; transform: none; transition: none; }
  .filterable.is-hidden { opacity: 0; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}