/* ─── Reset & Variables ────────────────────────────────────────────────────── */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Palette */
  --bg:          #09090b;
  --bg-2:        #0d0d10;
  --surface:     #111116;
  --surface-2:   #16161c;
  --border:      rgba(255, 255, 255, 0.07);
  --border-h:    rgba(129, 140, 248, 0.36);
  --text:        #f4f4f5;
  --text-2:      #a1a1aa;
  --text-3:      #3f3f46;

  /* Accent — indigo */
  --accent:      #818cf8;
  --accent-2:    #6366f1;
  --accent-3:    #4f46e5;
  --accent-dim:  rgba(129, 140, 248, 0.09);
  --accent-glow: rgba(129, 140, 248, 0.2);

  /* Typography */
  --display: 'Inter', system-ui, sans-serif;
  --sans:    'Inter', system-ui, sans-serif;
  --mono:    'JetBrains Mono', monospace;

  /* Layout */
  --max-w:  1080px;
  --nav-h:  72px;
  --radius: 14px;
  --ease:   cubic-bezier(0.4, 0, 0.2, 1);
  --trans:  0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scrollbar-width: thin;
  scrollbar-color: var(--text-3) transparent;
}

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Grain overlay */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.88' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.038'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9998;
  opacity: 0.4;
}

/* ─── Scroll Progress ──────────────────────────────────────────────────────── */

.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-2), var(--accent));
  z-index: 10000;
  transition: width 0.05s linear;
  box-shadow: 0 0 10px var(--accent-glow);
}

/* ─── Custom Cursor ────────────────────────────────────────────────────────── */

.cursor-dot, .cursor-ring {
  position: fixed;
  border-radius: 50%;
  pointer-events: none;
  z-index: 10001;
  transform: translate(-50%, -50%);
}

.cursor-dot {
  width: 5px;
  height: 5px;
  background: var(--accent);
}

.cursor-ring {
  width: 30px;
  height: 30px;
  border: 1px solid rgba(129, 140, 248, 0.4);
  transition: width 0.22s var(--ease), height 0.22s var(--ease), border-color 0.22s;
}

.cursor-ring.hovered {
  width: 46px;
  height: 46px;
  border-color: var(--accent);
}

@media (hover: none) {
  .cursor-dot, .cursor-ring { display: none; }
}

/* ─── Typography helpers ───────────────────────────────────────────────────── */

.label {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--accent);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.label::after {
  content: '';
  display: block;
  height: 1px;
  width: 40px;
  background: var(--accent);
  opacity: 0.35;
}

.section-title {
  font-family: var(--display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text);
  line-height: 1.1;
  margin-bottom: 14px;
}

.section-desc {
  font-size: 1rem;
  color: var(--text-2);
  max-width: 460px;
  line-height: 1.8;
}

/* Section number watermark */
.section-num {
  font-family: var(--display);
  font-size: clamp(5rem, 10vw, 8rem);
  font-weight: 800;
  color: transparent;
  -webkit-text-stroke: 1px rgba(129, 140, 248, 0.06);
  line-height: 1;
  position: absolute;
  right: 0;
  top: -16px;
  pointer-events: none;
  user-select: none;
  letter-spacing: -0.04em;
}

/* ─── Layout ───────────────────────────────────────────────────────────────── */

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 40px;
}

section { padding: 128px 0; }

/* ─── Navigation ───────────────────────────────────────────────────────────── */

nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 1000;
  transition: background var(--trans), border-color var(--trans);
}

nav.scrolled {
  background: rgba(9, 9, 11, 0.88);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 40px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--display);
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--text);
  text-decoration: none;
}

.nav-logo span { color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}

.nav-links a {
  font-size: 0.8rem;
  font-family: var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-2);
  text-decoration: none;
  transition: color var(--trans);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.28s var(--ease);
}

.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { transform: scaleX(1); }

.nav-cta {
  padding: 7px 18px !important;
  border: 1px solid var(--border-h) !important;
  border-radius: 8px;
  color: var(--accent) !important;
  transition: background var(--trans) !important;
}
.nav-cta::after { display: none !important; }
.nav-cta:hover { background: var(--accent-dim) !important; }

/* ─── Hero ─────────────────────────────────────────────────────────────────────────────── */

#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  position: relative;
  overflow: hidden;
}

#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.016) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.016) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 90% 90% at 50% 50%, black 0%, transparent 78%);
  pointer-events: none;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 70% at 15% 60%, rgba(99, 102, 241, 0.08) 0%, transparent 55%),
    radial-gradient(ellipse 40% 50% at 85% 30%, rgba(129, 140, 248, 0.05) 0%, transparent 55%);
  pointer-events: none;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  pointer-events: none;
  will-change: transform;
}

.hero-orb-1 {
  width: 560px; height: 560px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.13) 0%, transparent 70%);
  top: -160px; left: -120px;
  animation: orbDrift 14s ease-in-out infinite;
}

.hero-orb-2 {
  width: 380px; height: 380px;
  background: radial-gradient(circle, rgba(129, 140, 248, 0.09) 0%, transparent 70%);
  bottom: -60px; right: 15%;
  animation: orbDrift 18s ease-in-out infinite reverse 2s;
}

.hero-orb-3 {
  width: 260px; height: 260px;
  background: radial-gradient(circle, rgba(79, 70, 229, 0.08) 0%, transparent 70%);
  top: 35%; right: 8%;
  animation: orbDrift 11s ease-in-out infinite 5s;
}

@keyframes orbDrift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%       { transform: translate(28px, -24px) scale(1.04); }
  66%       { transform: translate(-18px, 18px) scale(0.97); }
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 40px;
  align-items: center;
  width: 100%;
}

.hero-content { max-width: 580px; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 6px 14px;
  border: 1px solid rgba(129, 140, 248, 0.2);
  border-radius: 100px;
  background: var(--accent-dim);
  margin-bottom: 36px;
}

.hero-badge-dot {
  display: block;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2.2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.4; transform: scale(0.7); }
}

.hero-name {
  font-family: var(--sans);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.0;
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.hero-name-first {
  font-size: clamp(3rem, 6vw, 5.2rem);
  color: var(--text);
}

.hero-name-last {
  font-size: clamp(2.3rem, 4.6vw, 4rem);
  color: var(--text-2);
}

.hero-name-cursor {
  display: inline-block;
  width: 3px;
  height: 0.82em;
  background: var(--accent);
  margin-left: 4px;
  vertical-align: middle;
  border-radius: 2px;
  animation: blink 1.1s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

.hero-role {
  font-family: var(--mono);
  font-size: 0.73rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-2);
  margin-bottom: 20px;
}

.hero-desc {
  font-size: 1rem;
  color: var(--text-2);
  line-height: 1.85;
  margin-bottom: 40px;
}

.hero-desc strong { color: var(--text); font-weight: 500; }

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.hero-socials {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

.hero-social-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.03em;
  color: #71717a;
  text-decoration: none;
  padding: 5px 9px;
  border-radius: 6px;
  transition: color var(--trans), background var(--trans);
}

.hero-social-link svg { width: 13px; height: 13px; flex-shrink: 0; }

.hero-social-link:hover {
  color: var(--text);
  background: rgba(255,255,255,0.04);
}

.hero-social-sep {
  display: block;
  width: 1px;
  height: 14px;
  background: var(--border);
  flex-shrink: 0;
  margin: 0 2px;
}

.hero-visual {
  position: relative;
  z-index: 1;
  justify-self: end;
  transition: filter 0.4s ease;
}

.hero-visual:hover {
  filter: drop-shadow(0 0 32px rgba(129,140,248,0.18));
}

/* Ambient glow orb behind the card */
.hero-visual::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 380px; height: 380px;
  background: radial-gradient(ellipse, rgba(129,140,248,0.1) 0%, transparent 68%);
  border-radius: 50%;
  pointer-events: none;
  animation: glow-breathe 5s ease-in-out infinite;
}

@keyframes glow-breathe {
  0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
  50%       { opacity: 1;   transform: translate(-50%, -50%) scale(1.18); }
}

.hero-card {
  background:
    radial-gradient(ellipse at 25% 0%, rgba(129,140,248,0.08) 0%, transparent 55%),
    linear-gradient(160deg, rgba(20,20,30,0.97) 0%, rgba(10,10,16,0.99) 100%);
  border: 1px solid rgba(129,140,248,0.2);
  border-radius: 20px;
  padding: 26px;
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow:
    0 0 0 1px rgba(129,140,248,0.05),
    0 2px 4px rgba(0,0,0,0.3),
    0 8px 24px rgba(0,0,0,0.45),
    0 40px 90px rgba(0,0,0,0.65),
    inset 0 1px 0 rgba(255,255,255,0.07),
    inset 0 -1px 0 rgba(0,0,0,0.5);
  position: relative;
  overflow: hidden;
  animation: card-float 7s ease-in-out infinite;
  transition:
    transform 0.4s cubic-bezier(0.23, 1, 0.32, 1),
    box-shadow 0.4s ease,
    border-color 0.4s ease;
  cursor: default;
}

.hero-card:hover {
  animation-play-state: paused;
  transform: translateY(-10px) scale(1.02);
  border-color: rgba(129,140,248,0.5);
  box-shadow:
    0 0 0 1px rgba(129,140,248,0.18),
    0 2px 4px rgba(0,0,0,0.3),
    0 16px 40px rgba(0,0,0,0.5),
    0 48px 100px rgba(0,0,0,0.6),
    0 0 60px rgba(129,140,248,0.18),
    0 0 120px rgba(129,140,248,0.08),
    inset 0 1px 0 rgba(255,255,255,0.12),
    inset 0 -1px 0 rgba(0,0,0,0.5);
}

.hero-card:hover::before {
  animation-duration: 1.2s;
}

@keyframes card-float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  35%       { transform: translateY(-7px) rotate(0.25deg); }
  70%       { transform: translateY(-3px) rotate(-0.15deg); }
}

/* Animated shimmer sweep across the top */
.hero-card::before {
  content: '';
  position: absolute;
  top: 0; left: -80%;
  width: 60%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.25), rgba(129,140,248,0.9), rgba(255,255,255,0.25), transparent);
  animation: shimmer-line 4.5s ease-in-out infinite 0.8s;
}

@keyframes shimmer-line {
  0%   { left: -60%; }
  55%  { left: 160%; }
  100% { left: 160%; }
}

/* Subtle dot-grid texture */
.hero-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(129,140,248,0.05) 1px, transparent 1px);
  background-size: 22px 22px;
  pointer-events: none;
  border-radius: 20px;
}

@media (prefers-reduced-motion: reduce) {
  .hero-card { animation: none; }
  .hero-card::before { animation: none; }
  .hero-visual::before { animation: none; }
}

/* ── Status ── */
.hc-status { display: flex; align-items: center; gap: 10px; position: relative; z-index: 1; }

.hc-status-dot {
  display: block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 3px rgba(34,197,94,0.15), 0 0 14px rgba(34,197,94,0.55);
  animation: pulse 2.4s ease-in-out infinite;
  flex-shrink: 0;
}

.hc-status-text { font-size: 0.83rem; color: var(--text); font-weight: 600; position: relative; z-index: 1; }

/* ── Divider ── */
.hc-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(129,140,248,0.14), transparent);
  margin: 16px 0;
}

/* ── Info rows ── */
.hc-info { display: flex; flex-direction: column; gap: 10px; position: relative; z-index: 1; }

.hc-info-row {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 0.8rem;
  color: var(--text-2);
  position: relative; z-index: 1;
}

.hc-info-row svg { width: 14px; height: 14px; color: var(--accent); flex-shrink: 0; }

/* ── Stack ── */
.hc-label {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(129,140,248,0.45);
  margin-bottom: 10px;
  position: relative; z-index: 1;
}

.hc-stack { display: flex; flex-wrap: wrap; gap: 6px; position: relative; z-index: 1; }

.hc-stack span {
  font-family: var(--mono);
  font-size: 0.68rem;
  padding: 4px 10px;
  border-radius: 7px;
  background: rgba(129,140,248,0.07);
  border: 1px solid rgba(129,140,248,0.16);
  color: var(--accent);
  letter-spacing: 0.02em;
  transition: background 0.22s, border-color 0.22s, box-shadow 0.22s, transform 0.18s;
  cursor: default;
}

.hc-stack span:hover {
  background: rgba(129,140,248,0.16);
  border-color: rgba(129,140,248,0.42);
  box-shadow: 0 0 14px rgba(129,140,248,0.22);
  transform: translateY(-2px);
}

/* ── Stats ── */
.hc-stats { display: flex; align-items: center; justify-content: space-between; position: relative; z-index: 1; }

.hc-stat { display: flex; flex-direction: column; align-items: center; gap: 4px; flex: 1; }

.hc-stat strong {
  font-size: 1.55rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--text);
  line-height: 1;
  text-shadow: 0 0 24px rgba(129,140,248,0.35);
}

.hc-stat span {
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(129,140,248,0.4);
}

.hc-stat-sep {
  width: 1px;
  height: 36px;
  background: linear-gradient(180deg, transparent, rgba(129,140,248,0.18), transparent);
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.hero-scroll-line {
  width: 1px; height: 44px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  opacity: 0.3;
  animation: scrollPulse 2.2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; }
  50%       { opacity: 0.6; }
}

.hero-scroll span {
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-3);
  writing-mode: vertical-rl;
}

/* ─── Buttons ──────────────────────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 10px;
  font-size: 0.9rem;
  font-family: var(--sans);
  font-weight: 500;
  text-decoration: none;
  transition: all var(--trans);
  cursor: pointer;
  border: none;
  white-space: nowrap;
}

.btn svg { width: 15px; height: 15px; flex-shrink: 0; }

.btn-primary {
  background: var(--accent-2);
  color: #fff;
  font-weight: 600;
}

.btn-primary:hover {
  background: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px var(--accent-glow);
}

.btn-ghost {
  background: transparent;
  color: var(--text-2);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  color: var(--text);
  border-color: var(--border-h);
  background: var(--accent-dim);
  transform: translateY(-2px);
}

/* ─── Projects ─────────────────────────────────────────────────────────────── */

#projects { background: var(--bg); }

.projects-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 72px;
  gap: 24px;
  flex-wrap: wrap;
  position: relative;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 18px;
}

/* Cards */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: border-color var(--trans), transform var(--trans),
              background var(--trans), box-shadow var(--trans);
}

/* Top accent line */
.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transition: opacity 0.4s;
}

/* Radial cursor glow */
.card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--mx, 50%) var(--my, 50%),
    var(--accent-dim) 0%, transparent 55%);
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
}

.card:hover {
  border-color: var(--border-h);
  transform: translateY(-4px);
  background: var(--surface-2);
  box-shadow: 0 20px 56px rgba(0, 0, 0, 0.45), 0 0 0 1px var(--border-h);
}

.card:hover::before { opacity: 1; }
.card:hover::after  { opacity: 1; }

.card-featured  { grid-column: span 12; }
.card-secondary { grid-column: span 12; }
.card-full      { grid-column: span 4; }

.card-num {
  font-family: var(--mono);
  font-size: 0.63rem;
  letter-spacing: 0.12em;
  color: var(--text-3);
  margin-bottom: 18px;
  transition: color var(--trans);
}

.card:hover .card-num { color: var(--accent); }

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 18px;
}

.card-icon {
  width: 44px;
  height: 44px;
  border-radius: 11px;
  background: var(--accent-dim);
  border: 1px solid rgba(129, 140, 248, 0.13);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}

.card-icon svg { width: 20px; height: 20px; }

.card-badge {
  font-family: var(--mono);
  font-size: 0.63rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(129, 140, 248, 0.18);
  padding: 4px 10px;
  border-radius: 100px;
}

.card-title {
  font-family: var(--display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: 10px;
  line-height: 1.2;
}

.card-featured .card-title { font-size: 1.7rem; }

.card-desc {
  font-size: 0.9rem;
  color: var(--text-2);
  line-height: 1.78;
  flex-grow: 1;
  margin-bottom: 22px;
}

.card-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 22px;
}

.card-meta-item {
  background: rgba(255,255,255,0.025);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
}

.card-meta-label {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 3px;
}

.card-meta-value {
  font-size: 0.85rem;
  color: var(--text);
  font-weight: 500;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: auto;
}

.tag {
  font-family: var(--mono);
  font-size: 0.69rem;
  color: var(--text-3);
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  padding: 3px 9px;
  border-radius: 5px;
  transition: color var(--trans), border-color var(--trans);
}

.card:hover .tag {
  color: var(--text-2);
  border-color: rgba(255,255,255,0.1);
}

/* ── Netnify featured: full-width banner + 2-col content below ── */
.card-featured-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 32px;
  align-items: start;
}

.card-featured-content {
  display: flex;
  flex-direction: column;
}

.card-featured-aside {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding-top: 4px;
}

/* ── Project image preview ── */
.card-preview {
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.07);
  box-shadow:
    0 4px 16px rgba(0,0,0,0.5),
    0 0 0 1px rgba(129,140,248,0.06),
    inset 0 1px 0 rgba(255,255,255,0.05);
  position: relative;
  flex-shrink: 0;
}

.card-preview img {
  width: 100%;
  display: block;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.card-featured:hover .card-preview img {
  transform: scale(1.03);
}

/* Inset border overlay */
.card-preview::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 10px;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.06);
  pointer-events: none;
}

/* Unfoc: top banner with bottom fade */
.card-preview--banner {
  margin: -32px -32px 24px -32px;
  border-radius: var(--radius) var(--radius) 0 0;
  border-left: none;
  border-right: none;
  border-top: none;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.card-preview--banner::before {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 60px;
  background: linear-gradient(to bottom, transparent, var(--surface));
  pointer-events: none;
  z-index: 1;
}

.card-preview--banner img {
  height: 180px;
  object-position: top;
}

.card-preview--hero img {
  height: 340px;
}

/* ── Feature list ── */
.card-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 7px;
  margin-bottom: 22px;
  padding: 0;
}

.card-features li {
  font-size: 0.84rem;
  color: var(--text-2);
  padding-left: 16px;
  position: relative;
  line-height: 1.5;
}

.card-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.6;
}

/* ── Card link button ── */
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 20px;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--accent);
  text-decoration: none;
  border: 1px solid rgba(129,140,248,0.22);
  border-radius: 7px;
  padding: 7px 13px;
  background: rgba(129,140,248,0.06);
  transition: background 0.22s, border-color 0.22s, color 0.22s, transform 0.18s;
  align-self: flex-start;
}

.card-link svg { width: 12px; height: 12px; flex-shrink: 0; }

.card-link:hover {
  background: rgba(129,140,248,0.14);
  border-color: rgba(129,140,248,0.5);
  transform: translateY(-1px);
}

/* Cards with data-href are fully clickable */
.card[data-href] {
  cursor: pointer;
}

.card[data-href] .card-link {
  position: relative;
  z-index: 2;
}

/* ── ML Lab card ── */
.card-lab {
  grid-column: span 12;
}

.card-lab-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.card-lab-projects {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.lab-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  border-radius: 10px;
  background: rgba(255,255,255,0.025);
  border: 1px solid var(--border);
  text-decoration: none;
  transition: background 0.22s, border-color 0.22s, transform 0.18s;
}

.lab-item:hover {
  background: rgba(129,140,248,0.07);
  border-color: rgba(129,140,248,0.3);
  transform: translateX(4px);
}

.lab-item-num {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  color: rgba(129,140,248,0.4);
  flex-shrink: 0;
  width: 20px;
}

.lab-item-body { flex: 1; }

.lab-item-title {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 3px;
}

.lab-item-desc {
  font-size: 0.78rem;
  color: var(--text-2);
  line-height: 1.4;
}

.lab-item-arrow {
  width: 14px;
  height: 14px;
  color: var(--text-3);
  flex-shrink: 0;
  transition: color 0.2s, transform 0.2s;
}

.lab-item:hover .lab-item-arrow {
  color: var(--accent);
  transform: translate(2px, -2px);
}

/* ─── Experience ───────────────────────────────────────────────────────────── */

#experience {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.exp-layout {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 100px;
  align-items: start;
}

.exp-sticky {
  position: sticky;
  top: calc(var(--nav-h) + 40px);
}

.exp-timeline {
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: relative;
  padding-left: 36px;
}

/* Vertical line */
.exp-timeline::before {
  content: '';
  position: absolute;
  left: 5px; top: 16px; bottom: 16px;
  width: 1px;
  background: linear-gradient(to bottom,
    transparent,
    var(--border) 8%,
    var(--border) 92%,
    transparent
  );
}

/* Row wrapper — allows node to live outside the card */
.exp-row {
  position: relative;
  display: flex;
  width: 100%;
}

/* Timeline node dot */
.exp-node {
  position: absolute;
  left: -30px;
  top: 30px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--surface);
  border: 1.5px solid var(--text-3);
  z-index: 1;
  flex-shrink: 0;
  transition: border-color 0.3s ease, background 0.3s ease, box-shadow 0.3s ease;
}

.exp-node.primary {
  background: var(--exp);
  border-color: var(--exp);
  box-shadow: 0 0 10px color-mix(in srgb, var(--exp) 55%, transparent);
}

.exp-row:hover .exp-node {
  border-color: var(--exp);
  background: color-mix(in srgb, var(--exp) 25%, var(--surface));
  box-shadow: 0 0 10px color-mix(in srgb, var(--exp) 45%, transparent);
}

.exp-item { width: 100%; }

/* ── Each card ── */
.exp-item {
  position: relative;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--surface);
  overflow: hidden;
  cursor: default;
  transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
  --mx: 50%; --my: 50%;
}

.exp-item:hover {
  border-color: color-mix(in srgb, var(--exp) 35%, transparent);
  box-shadow: 0 12px 40px color-mix(in srgb, var(--exp) 10%, transparent);
  transform: translateY(-2px);
}

/* Mouse-tracking radial glow */
.exp-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle 260px at var(--mx) var(--my),
    color-mix(in srgb, var(--exp) 8%, transparent),
    transparent 70%
  );
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  border-radius: inherit;
}

.exp-item:hover::after { opacity: 1; }

/* Ghost company name */
.exp-ghost {
  position: absolute;
  right: -8px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--display);
  font-size: clamp(3.5rem, 7vw, 5.5rem);
  font-weight: 900;
  letter-spacing: -0.05em;
  color: color-mix(in srgb, var(--exp) 6%, transparent);
  pointer-events: none;
  user-select: none;
  white-space: nowrap;
  transition: color 0.35s ease;
  line-height: 1;
}

.exp-item:hover .exp-ghost {
  color: color-mix(in srgb, var(--exp) 12%, transparent);
}

/* Animated left accent bar */
.exp-accent-bar {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--exp);
  transform: scaleY(0);
  transform-origin: top;
  border-radius: 0 2px 2px 0;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.exp-item.primary .exp-accent-bar {
  transform: scaleY(1);
  box-shadow: 2px 0 12px color-mix(in srgb, var(--exp) 50%, transparent);
}

.exp-item:hover .exp-accent-bar {
  transform: scaleY(1);
  box-shadow: 2px 0 12px color-mix(in srgb, var(--exp) 50%, transparent);
}

/* Content wrapper */
.exp-content {
  padding: 28px 32px 28px 28px;
  position: relative;
  z-index: 1;
}

.exp-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 6px;
}

.exp-role {
  font-family: var(--display);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.exp-date {
  font-family: var(--mono);
  font-size: 0.63rem;
  color: var(--text-3);
  letter-spacing: 0.08em;
  white-space: nowrap;
  padding-top: 3px;
  background: color-mix(in srgb, var(--exp) 8%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--exp) 18%, transparent);
  border-radius: 20px;
  padding: 3px 10px;
  transition: background 0.3s ease, border-color 0.3s ease;
}

.exp-item:hover .exp-date {
  background: color-mix(in srgb, var(--exp) 14%, var(--surface));
  border-color: color-mix(in srgb, var(--exp) 35%, transparent);
}

.exp-company {
  font-size: 0.82rem;
  color: var(--exp);
  font-weight: 600;
  margin-bottom: 10px;
}

.exp-type {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 9px;
  border-radius: 4px;
  border: 1px solid color-mix(in srgb, var(--exp) 20%, var(--border));
  color: color-mix(in srgb, var(--exp) 70%, var(--text-3));
  background: color-mix(in srgb, var(--exp) 5%, transparent);
  margin-bottom: 12px;
}

.exp-desc {
  font-size: 0.88rem;
  color: var(--text-2);
  line-height: 1.75;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transform: translateY(6px);
  transition: max-height 0.4s ease, opacity 0.35s ease, transform 0.35s ease;
}

.exp-item.primary .exp-desc,
.exp-item:hover .exp-desc {
  max-height: 120px;
  opacity: 1;
  transform: translateY(0);
}

/* ─── Skills ───────────────────────────────────────────────────────────────── */

#skills { background: var(--bg); }

.skills-header {
  margin-bottom: 72px;
  position: relative;
}

/* ─── Tech showcase ─────────────────────────────────────────────────────────── */

.tech-showcase {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.tech-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.tech-section-label {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(129,140,248,0.45);
}

.tech-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

/* Individual chip */
.tech-chip {
  --brand: var(--accent);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 14px 13px 11px;
  background: color-mix(in srgb, var(--brand) 6%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--brand) 20%, transparent);
  border-radius: 12px;
  cursor: default;
  min-width: 80px;
  transition: border-color 0.28s ease,
              background 0.28s ease,
              box-shadow 0.28s ease,
              transform 0.28s cubic-bezier(0.23, 1, 0.32, 1);
}

.tech-chip:hover {
  border-color: color-mix(in srgb, var(--brand) 60%, transparent);
  background: color-mix(in srgb, var(--brand) 14%, var(--surface));
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--brand) 20%, transparent),
    0 0 22px color-mix(in srgb, var(--brand) 22%, transparent),
    0 8px 20px rgba(0,0,0,0.4);
  transform: translateY(-5px) scale(1.06);
}

.tech-chip-icon {
  width: 26px;
  height: 26px;
  color: color-mix(in srgb, var(--brand) 70%, var(--text-3));
  flex-shrink: 0;
  transition: color 0.28s ease, transform 0.28s cubic-bezier(0.23, 1, 0.32, 1);
}

.tech-chip:hover .tech-chip-icon {
  color: var(--brand);
  transform: scale(1.18) rotate(-6deg);
}

.tech-chip-name {
  font-family: var(--mono);
  font-size: 0.63rem;
  letter-spacing: 0.03em;
  color: color-mix(in srgb, var(--brand) 55%, var(--text-3));
  white-space: nowrap;
  transition: color 0.28s ease;
  text-align: center;
}

.tech-chip:hover .tech-chip-name {
  color: color-mix(in srgb, var(--brand) 80%, var(--text));
}

/* Stagger entry animation */
@keyframes chip-enter {
  from { opacity: 0; transform: translateY(12px) scale(0.94); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.tech-section.visible .tech-chip {
  animation: chip-enter 0.4s cubic-bezier(0.23, 1, 0.32, 1) both;
}
.tech-section.visible .tech-chip:nth-child(1)  { animation-delay: 0.04s; }
.tech-section.visible .tech-chip:nth-child(2)  { animation-delay: 0.08s; }
.tech-section.visible .tech-chip:nth-child(3)  { animation-delay: 0.12s; }
.tech-section.visible .tech-chip:nth-child(4)  { animation-delay: 0.16s; }
.tech-section.visible .tech-chip:nth-child(5)  { animation-delay: 0.20s; }
.tech-section.visible .tech-chip:nth-child(6)  { animation-delay: 0.24s; }
.tech-section.visible .tech-chip:nth-child(7)  { animation-delay: 0.28s; }
.tech-section.visible .tech-chip:nth-child(8)  { animation-delay: 0.32s; }

/* Soft-skills tags (reused) */
.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.skill-tag {
  font-family: var(--mono);
  font-size: 0.72rem;
  padding: 5px 11px;
  border-radius: 7px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  color: var(--text-2);
  transition: all var(--trans);
  cursor: default;
}

.skill-tag:hover {
  color: var(--accent);
  border-color: rgba(129,140,248,0.3);
  background: var(--accent-dim);
  transform: translateY(-2px);
}

/* ─── About ────────────────────────────────────────────────────────────────── */

#about {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.about-layout {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 72px;
  align-items: center;
}

/* Photo column */
.about-photo-col { position: relative; }

.about-photo-wrap {
  position: relative;
  display: inline-block;
  width: 100%;
  max-width: 340px;
}

.about-photo {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  object-position: center top;
  border-radius: 18px;
  display: block;
  position: relative;
  z-index: 1;
  border: 1px solid var(--border);
  transition: border-color var(--trans), box-shadow var(--trans);
  filter: grayscale(15%);
}

.about-photo-wrap:hover .about-photo {
  border-color: var(--border-h);
  box-shadow: 0 20px 64px rgba(0, 0, 0, 0.5), 0 0 0 1px var(--border-h);
  filter: grayscale(0%);
}

/* Indigo glow behind the photo */
.about-photo-glow {
  position: absolute;
  inset: -20px;
  border-radius: 24px;
  background: radial-gradient(ellipse 80% 80% at 50% 60%,
    var(--accent-glow) 0%, transparent 70%);
  z-index: 0;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.5s var(--ease);
}

.about-photo-wrap:hover .about-photo-glow { opacity: 1; }

/* Corner accent */
.about-photo-wrap::before {
  content: '';
  position: absolute;
  bottom: -10px;
  right: -10px;
  width: 80px;
  height: 80px;
  border-right: 1px solid var(--border-h);
  border-bottom: 1px solid var(--border-h);
  border-radius: 0 0 12px 0;
  z-index: 0;
  transition: border-color var(--trans);
}

.about-photo-wrap:hover::before { border-color: var(--accent); }

/* Text column */
.about-text-col { display: flex; flex-direction: column; gap: 0; }

.about-text p {
  font-size: 1rem;
  color: var(--text-2);
  line-height: 1.88;
  margin-bottom: 20px;
}

.about-text p strong { color: var(--text); font-weight: 500; }
.about-text p:last-child { margin-bottom: 0; }

/* Stats */
.about-stats {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  margin-top: 56px;
}

.stat-card {
  --stat: var(--accent);
  background: var(--surface);
  border: 1px solid rgba(255,255,255,0.06);
  border-top: 2px solid var(--stat);
  border-radius: var(--radius);
  padding: 22px 18px 18px;
  transition: border-color var(--trans), transform var(--trans), box-shadow var(--trans), background var(--trans);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* Subtle glow bg */
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 60%;
  background: linear-gradient(to bottom, color-mix(in srgb, var(--stat) 6%, transparent), transparent);
  pointer-events: none;
}

.stat-card:hover {
  border-color: color-mix(in srgb, var(--stat) 40%, transparent);
  border-top-color: var(--stat);
  background: color-mix(in srgb, var(--stat) 5%, var(--surface));
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.35), 0 0 20px color-mix(in srgb, var(--stat) 10%, transparent);
}

.stat-icon {
  width: 18px;
  height: 18px;
  color: var(--stat);
  opacity: 0.8;
  margin-bottom: 4px;
  flex-shrink: 0;
}

.stat-number {
  font-family: var(--display);
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--text);
  line-height: 1;
  display: flex;
  align-items: baseline;
  gap: 5px;
}

.stat-number span[data-count] { color: var(--stat); }

.stat-unit {
  font-size: 1rem;
  font-weight: 600;
  color: color-mix(in srgb, var(--stat) 70%, var(--text-2)) !important;
  letter-spacing: 0;
}

.stat-label {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-top: 2px;
}

/* Education */
.about-edu { margin-top: 72px; }

.edu-label {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.edu-label::after {
  content: '';
  height: 1px;
  width: 40px;
  background: var(--accent);
  opacity: 0.35;
}

.edu-items {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.edu-item {
  background: var(--surface);
  border: 1px solid rgba(255,255,255,0.06);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 20px 22px;
  transition: border-color var(--trans), transform var(--trans), box-shadow var(--trans);
  position: relative;
}

.edu-item:nth-child(1) { border-left-color: #818cf8; }
.edu-item:nth-child(2) { border-left-color: #22c55e; }
.edu-item:nth-child(3) { border-left-color: #f59e0b; }

.edu-item:hover {
  border-color: rgba(255,255,255,0.1);
  border-left-color: inherit;
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(0,0,0,0.3);
}

.edu-year {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  color: var(--text-3);
  margin-bottom: 10px;
  text-transform: uppercase;
}

.edu-title {
  font-family: var(--display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
  line-height: 1.25;
  color: var(--text);
}

.edu-place {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--text-3);
  line-height: 1.5;
}

/* ─── Contact ──────────────────────────────────────────────────────────────── */

#contact {
  background: var(--bg);
  position: relative;
  overflow: hidden;
  --cx: 50%;
  --cy: 50%;
  --dot-ox: 0px;
  --dot-oy: 0px;
  --spotlight: 0;
}

/* Dot grid — shifts with mouse via JS-driven offsets */
#contact::before {
  content: '';
  position: absolute;
  inset: -20px;
  background-image: radial-gradient(circle, rgba(139, 92, 246, 0.22) 1.2px, transparent 1.2px);
  background-size: 28px 28px;
  background-position: var(--dot-ox) var(--dot-oy);
  mask-image: radial-gradient(ellipse 85% 75% at 50% 50%, black 20%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 85% 75% at 50% 50%, black 20%, transparent 100%);
  pointer-events: none;
  z-index: 0;
  transition: background-position 0.08s linear;
}

/* Spotlight orb that follows the cursor */
#contact::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle 320px at var(--cx) var(--cy),
    rgba(139, 92, 246, 0.12) 0%,
    rgba(99, 102, 241, 0.06) 40%,
    transparent 70%
  );
  opacity: var(--spotlight);
  pointer-events: none;
  z-index: 0;
  transition: opacity 0.4s ease;
}

#contact .container {
  position: relative;
  z-index: 1;
}

/* Magnetic button — slight tilt on hover via JS */
.contact-link-primary {
  will-change: transform;
  transition: background var(--trans), box-shadow var(--trans), transform 0.12s ease;
}

.contact-inner {
  max-width: 660px;
  margin: 0 auto;
  text-align: center;
}

.contact-inner .label {
  justify-content: center;
}

.contact-inner .label::after { display: none; }

.contact-title {
  font-family: var(--display);
  font-size: clamp(2.6rem, 6vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.08;
  margin-bottom: 20px;
  color: var(--text);
}

.contact-title em {
  font-style: normal;
  background: linear-gradient(135deg, var(--text) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.contact-desc {
  font-size: 1rem;
  color: var(--text-2);
  line-height: 1.8;
  margin-bottom: 48px;
}

.contact-links {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 26px;
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  transition: all var(--trans);
}

.contact-link svg { width: 17px; height: 17px; }

.contact-link-primary {
  background: var(--accent-2);
  color: #fff;
  font-weight: 600;
}

.contact-link-primary:hover {
  background: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 10px 32px var(--accent-glow);
}

.contact-link-secondary {
  background: var(--surface);
  color: var(--text-2);
  border: 1px solid var(--border);
}

.contact-link-secondary:hover {
  color: var(--text);
  border-color: var(--border-h);
  background: var(--accent-dim);
  transform: translateY(-2px);
}

.contact-link-whatsapp {
  background: var(--surface);
  color: #25d366;
  border: 1px solid rgba(37, 211, 102, 0.25);
}

.contact-link-whatsapp:hover {
  background: rgba(37, 211, 102, 0.1);
  border-color: rgba(37, 211, 102, 0.5);
  color: #25d366;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.15);
}

.contact-rule {
  width: 1px;
  height: 52px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  margin: 48px auto;
  opacity: 0.25;
}

.contact-info {
  display: flex;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
}

.contact-info-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.03em;
  color: var(--text-3);
}

.contact-info-item svg {
  width: 14px;
  height: 14px;
  color: var(--accent);
  flex-shrink: 0;
}

/* ─── Back to top ──────────────────────────────────────────────────────────── */

.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 900;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-2);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease),
              background var(--trans), border-color var(--trans),
              color var(--trans), box-shadow var(--trans);
}

.back-to-top svg { width: 16px; height: 16px; }

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.back-to-top:hover {
  background: var(--accent-dim);
  border-color: var(--border-h);
  color: var(--accent);
  box-shadow: 0 4px 20px var(--accent-glow);
  transform: translateY(-2px);
}

/* ─── Footer ───────────────────────────────────────────────────────────────── */

footer {
  border-top: 1px solid var(--border);
  padding: 28px 0;
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-copy {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: var(--text-3);
}

.footer-copy strong { color: var(--text-2); font-weight: 400; }

.footer-note {
  font-family: var(--sans);
  font-size: 0.8rem;
  font-style: italic;
  color: var(--text-3);
}

/* ─── Scroll Reveal ────────────────────────────────────────────────────────── */

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.75s var(--ease), transform 0.75s var(--ease);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ─── Hero entrance ─────────────────────────────────────────────────────────────────────────── */

.hero-badge, .hero-name,
.hero-role, .hero-desc,
.hero-actions, .hero-socials {
  opacity: 0;
  transform: translateY(16px);
  animation: heroFadeIn 0.85s var(--ease) forwards;
}

.hero-badge   { animation-delay: 0.08s; }
.hero-name    { animation-delay: 0.22s; }
.hero-role    { animation-delay: 0.36s; }
.hero-desc    { animation-delay: 0.46s; }
.hero-actions { animation-delay: 0.58s; }
.hero-socials { animation-delay: 0.70s; }

.hero-visual {
  opacity: 0;
  transform: translateY(20px) scale(0.97);
  animation: heroFadeIn 1s var(--ease) 0.38s forwards;
}

@keyframes heroFadeIn {
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* ─── Loading Screen ───────────────────────────────────────────────────────── */

body.is-loading { overflow: hidden; }

#loader {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: transform 0.85s cubic-bezier(0.76, 0, 0.24, 1),
              opacity   0.85s cubic-bezier(0.76, 0, 0.24, 1);
}

/* Slide up + slight fade on exit */
#loader.done {
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
}

/* Atmospheric orbs */
.loader-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
  animation: orbDrift 12s ease-in-out infinite;
}
.loader-orb-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(99,102,241,0.16) 0%, transparent 70%);
  top: -140px; left: -120px;
}
.loader-orb-2 {
  width: 380px; height: 380px;
  background: radial-gradient(circle, rgba(167,139,250,0.1) 0%, transparent 70%);
  bottom: -80px; right: -60px;
  animation-duration: 15s; animation-direction: reverse; animation-delay: -4s;
}

/* Dot grid */
.loader-grid {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(129,140,248,0.055) 1px, transparent 1px);
  background-size: 30px 30px;
  mask-image: radial-gradient(ellipse 65% 65% at 50% 50%, black 0%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 65% 65% at 50% 50%, black 0%, transparent 100%);
  pointer-events: none;
}

/* Main content */
.loader-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  position: relative;
  z-index: 3;
  text-align: center;
  padding: 0 32px;
  width: min(360px, 90vw);
}

/* Logo */
.loader-logo {
  font-family: var(--display);
  font-size: clamp(2rem, 6vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--text);
  line-height: 1;
  opacity: 0;
  transform: translateY(12px);
  animation: loaderIn 0.7s var(--ease) 0.2s forwards;
}
.loader-logo span { color: var(--accent); }

/* Tagline */
.loader-tagline {
  font-family: var(--mono);
  font-size: clamp(0.55rem, 1.8vw, 0.64rem);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-3);
  opacity: 0;
  transform: translateY(8px);
  animation: loaderIn 0.6s var(--ease) 0.42s forwards;
}

/* Progress bar track */
.loader-bar-wrap {
  width: 100%;
  height: 2px;
  background: rgba(255,255,255,0.07);
  border-radius: 99px;
  overflow: hidden;
  margin-top: 8px;
  opacity: 0;
  animation: loaderIn 0.5s var(--ease) 0.6s forwards;
}

/* Progress bar fill */
.loader-bar {
  height: 100%;
  width: 0%;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--accent), #a78bfa);
  box-shadow: 0 0 10px rgba(129,140,248,0.6);
  transition: width 0.04s linear;
}

/* Percentage */
.loader-percent {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  color: var(--text-3);
  opacity: 0;
  animation: loaderIn 0.5s var(--ease) 0.7s forwards;
}

@keyframes loaderIn {
  to { opacity: 1; transform: translateY(0); }
}

/* ─── Responsive ───────────────────────────────────────────────────────────── */

/* Hamburger — hidden on desktop */
.nav-menu-btn { display: none; }

/* ── Tablet 960px ──────────────────────────────────────────────────────────── */
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual { max-width: 420px; }
  .projects-grid { grid-template-columns: 1fr; }
  .card-featured, .card-secondary, .card-full { grid-column: span 1; }
  .card-featured-layout { grid-template-columns: 1fr; }
  .card-featured-aside { padding-top: 0; }
  .card-preview--banner { margin: -32px -32px 24px -32px; }
  .card-preview--hero img { height: 220px; }
  .exp-layout { display: flex; flex-direction: column; gap: 40px; }
  .exp-sticky { position: relative !important; top: auto !important; }
  .exp-timeline { padding-left: 28px; }
  .exp-node { left: -23px; }
  .tech-chips { gap: 8px; }
  .about-layout { grid-template-columns: 1fr; gap: 40px; }
  .about-photo-wrap { max-width: 220px; margin: 0 auto; }
  .edu-items { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: repeat(3, 1fr); gap: 10px; }
  .hero-net { opacity: 0.2; width: 52%; }
}

/* ── Mobile 640px ──────────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  :root { --nav-h: 60px; }

  section { padding: 72px 0; }
  .container { padding: 0 20px; }

  /* Nav */
  .nav-inner { padding: 0 20px; }

  .nav-menu-btn {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    flex-shrink: 0;
  }

  .nav-menu-btn span {
    display: block;
    width: 22px;
    height: 1.5px;
    background: var(--text-2);
    border-radius: 2px;
    transition: transform 0.3s var(--ease), opacity 0.3s var(--ease), background 0.3s ease;
  }

  .nav-menu-btn.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); background: var(--accent); }
  .nav-menu-btn.open span:nth-child(2) { opacity: 0; }
  .nav-menu-btn.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); background: var(--accent); }

  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    background: rgba(9, 9, 11, 0.97);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 0 20px;
    transform: translateY(-10px);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s var(--ease), opacity 0.25s var(--ease);
    z-index: 998;
    list-style: none;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links li { width: 100%; }

  .nav-links a {
    display: block;
    padding: 13px 24px;
    font-size: 0.85rem;
    letter-spacing: 0.06em;
    color: var(--text-2);
    text-decoration: none;
  }

  .nav-links a::after { display: none; }

  .nav-links a:hover, .nav-links a:active { color: var(--text); background: rgba(255,255,255,0.03); }

  .nav-cta {
    margin: 12px 20px 0 !important;
    display: block !important;
    text-align: center !important;
    border-radius: 10px !important;
    padding: 12px 24px !important;
  }

  /* Hero */
  .hero-visual { display: none; }
  .hero-net { display: none; }
  .hero-scroll { bottom: 20px; left: 50%; transform: translateX(-50%); }
  .hero-actions { flex-direction: column; gap: 10px; }
  .hero-actions .btn { text-align: center; justify-content: center; }

  /* Hero socials — in flow, centered below action buttons */
  .hero-social-sep { display: none; }
  .social-label { display: none; }
  .hero-socials {
    position: static;
    transform: none;
    justify-content: center;
    gap: 8px;
    flex-wrap: nowrap;
    margin-bottom: 100px; /* space for the scroll indicator at the bottom */
  }
  .hero-social-link {
    padding: 9px 11px;
    border: 1px solid var(--border);
    border-radius: 9px;
    color: var(--text-2);
    background: rgba(255,255,255,0.02);
  }
  .hero-social-link svg { width: 16px; height: 16px; }

  /* Projects — each card full width, stacked */
  .projects-grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }
  .card { padding: 18px; }
  .card-featured, .card-secondary, .card-lab { width: 100%; }

  /* Image: compact banner */
  .card-preview--banner { margin: -18px -18px 14px -18px; }
  .card-preview--banner img { height: 120px; }
  .card-preview--hero img { height: 120px; }

  /* Layout: force single column stack */
  .card-featured-layout {
    display: flex !important;
    flex-direction: column !important;
    gap: 16px;
  }

  /* Hide feature list on mobile — saves vertical space */
  .card-features { display: none; }

  /* Aside: horizontal wrap instead of vertical stack */
  .card-featured-aside {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
  }
  .card-meta { display: none; }
  .card-tags { margin-top: 0; }
  .card-link { margin-top: 0; }

  /* ML Lab card */
  .card-lab-inner { display: flex; flex-direction: column; gap: 20px; }
  .card-lab-projects { gap: 8px; }

  /* Experience — always show desc on touch (no hover) */
  /* Experience — always show description, remove animation clipping */
  .exp-item .exp-desc,
  .exp-item.primary .exp-desc {
    max-height: none !important;
    overflow: visible !important;
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .exp-ghost { display: none; }  /* remove decorative text that can overlap */
  .exp-layout { display: flex; flex-direction: column; gap: 28px; }
  .exp-sticky { position: relative !important; top: auto !important; }
  .exp-timeline { padding-left: 24px; gap: 12px; }
  .exp-node { left: -19px; top: 24px; width: 9px; height: 9px; }
  .exp-timeline::before { left: 4px; }
  .exp-content { padding: 20px 18px 20px 20px; }
  .exp-header { flex-direction: column; gap: 6px; align-items: flex-start; }
  .exp-date { align-self: flex-start; }

  /* Tech chips */
  .tech-chip { min-width: 68px; padding: 12px 10px 9px; }
  .tech-chip-icon { width: 22px; height: 22px; }

  /* About — full mobile redesign */
  .about-layout {
    display: flex;
    flex-direction: column;
    gap: 0;
  }

  /* Text col first, photo second */
  .about-text-col { order: 1; }
  .about-photo-col { order: 2; margin-top: 32px; }

  /* Photo: same style as desktop, just smaller */
  .about-photo-wrap {
    max-width: 200px;
    margin: 0 auto;
  }
  .about-photo {
    border-radius: 18px;
    filter: grayscale(15%);
  }

  /* Stats — 2 cols, last card full width */
  .about-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-top: 32px;
  }
  .stat-card:last-child { grid-column: 1 / -1; }
  .stat-card { padding: 16px 14px 13px; }
  .stat-number { font-size: 1.9rem; }
  .stat-icon { width: 16px; height: 16px; margin-bottom: 2px; }

  /* Education — compact */
  .about-edu { margin-top: 36px; }
  .edu-item { padding: 14px 16px; }
  .edu-title { font-size: 0.9rem; }
  .edu-place { font-size: 0.75rem; }

  /* Contact */
  .contact-title { font-size: clamp(1.9rem, 10vw, 2.8rem); }
  .contact-desc { font-size: 0.9rem; margin-bottom: 32px; }

  /* Buttons: primary full width, secondary 2x2 grid */
  .contact-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }
  .contact-link-primary,
  .contact-link-whatsapp {
    grid-column: 1 / -1;   /* full width */
    justify-content: center;
  }
  .contact-link {
    padding: 13px 16px;
    font-size: 0.84rem;
    justify-content: center;
  }

  /* Info: stacked vertically, centered */
  .contact-rule { margin: 32px auto; }
  .contact-info {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }
  .contact-info-item { font-size: 0.75rem; }

  /* Footer */
  .footer-inner { flex-direction: column; text-align: center; padding: 0 20px; gap: 8px; }

  /* Back to top */
  .back-to-top { bottom: 20px; right: 16px; width: 38px; height: 38px; }
}

/* ── Small phones 400px ────────────────────────────────────────────────────── */
@media (max-width: 400px) {
  .container { padding: 0 16px; }
  .about-stats { grid-template-columns: repeat(2, 1fr); }
  .stat-number { font-size: 1.75rem; }
  .tech-chip { min-width: 60px; padding: 10px 8px 8px; font-size: 0.58rem; }
  .contact-links { flex-direction: column; align-items: stretch; }
  .contact-link { justify-content: center; }
  .hero-badge { font-size: 0.6rem; padding: 5px 11px; }
}