/* ============================================================
   DESIGN TOKENS — Dark Mode (default)
   ============================================================ */
:root,
[data-theme="dark"] {
  --bg:           #0a0b0f;
  --bg-alt:       #0f1117;
  --bg-card:      #13161f;
  --bg-card-hov:  #181c28;
  --bg-nav:       rgba(10, 11, 15, 0.80);

  --ink:          #f0f2ff;
  --ink-2:        #c8ccde;
  --ink-muted:    #717690;
  --ink-faint:    #3a3f56;

  --blue:         #6c8ef5;
  --blue-2:       #4d6ef0;
  --purple:       #a78bfa;
  --cyan:         #38bdf8;
  --gold:         #fbbf24;
  --green:        #22c55e;
  --red:          #f87171;

  --grad-hero:    linear-gradient(135deg, #6c8ef5 0%, #a78bfa 50%, #38bdf8 100%);
  --grad-name:    linear-gradient(90deg, #6c8ef5, #a78bfa 50%, #38bdf8);
  --grad-accent:  linear-gradient(135deg, #6c8ef5, #a78bfa);

  --line:         rgba(255,255,255,0.08);
  --line-soft:    rgba(255,255,255,0.05);

  --shadow-sm:    0 2px 8px rgba(0,0,0,0.4);
  --shadow-md:    0 8px 32px rgba(0,0,0,0.5);
  --shadow-lg:    0 20px 60px rgba(0,0,0,0.6);
  --shadow-glow:  0 0 40px rgba(108,142,245,0.15);

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

  --radius:    16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --container: 1100px;
  --nav-h:     68px;
}

/* ============================================================
   LIGHT MODE
   ============================================================ */
[data-theme="light"] {
  --bg:          #ffffff;
  --bg-alt:      #f4f6fb;
  --bg-card:     #ffffff;
  --bg-card-hov: #f8f9ff;
  --bg-nav:      rgba(255,255,255,0.85);

  --ink:         #0d0f1a;
  --ink-2:       #2d3148;
  --ink-muted:   #5a6080;
  --ink-faint:   #d0d4e8;

  --blue:        #3b5cf0;
  --blue-2:      #2646e8;
  --purple:      #7c3aed;
  --cyan:        #0284c7;
  --gold:        #d97706;
  --green:       #16a34a;

  --grad-name:   linear-gradient(90deg, #3b5cf0, #7c3aed 50%, #0284c7);

  --line:        rgba(0,0,0,0.09);
  --line-soft:   rgba(0,0,0,0.05);

  --shadow-sm:   0 2px 8px rgba(0,0,0,0.08);
  --shadow-md:   0 8px 32px rgba(0,0,0,0.10);
  --shadow-lg:   0 20px 60px rgba(0,0,0,0.12);
  --shadow-glow: 0 0 40px rgba(59,92,240,0.10);
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background 0.35s ease, color 0.35s ease;
  overflow-x: hidden;
}
h1,h2,h3,h4 { font-family: var(--font-display); color: var(--ink); line-height: 1.15; }
p  { color: var(--ink-2); }
a  { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; border: none; background: none; cursor: pointer; }
strong { color: var(--ink); font-weight: 600; }
.mono { font-family: var(--font-mono); }

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

/* ============================================================
   LAYOUT HELPERS
   ============================================================ */
.section {
  padding: 100px 24px;
}
.section--alt {
  background: var(--bg-alt);
}
.section__inner {
  max-width: var(--container);
  margin: 0 auto;
}
.section__header {
  margin-bottom: 56px;
}
.section__title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}
.section__subtitle {
  color: var(--ink-muted);
  font-size: 16px;
  max-width: 560px;
}
.eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 14px;
  padding: 5px 12px;
  border-radius: 100px;
  background: rgba(108,142,245,0.10);
  border: 1px solid rgba(108,142,245,0.20);
}
[data-theme="light"] .eyebrow {
  background: rgba(59,92,240,0.08);
  border-color: rgba(59,92,240,0.20);
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 100px;
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
  white-space: nowrap;
}
.btn i { font-size: 13px; }
.btn--primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 4px 16px rgba(108,142,245,0.35);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(108,142,245,0.45);
  background: var(--blue-2);
}
.btn--primary:active { transform: translateY(0); }

.btn--ghost {
  border: 1px solid var(--line);
  color: var(--ink-2);
  background: transparent;
}
.btn--ghost:hover {
  border-color: var(--blue);
  color: var(--blue);
  background: rgba(108,142,245,0.06);
}
.btn--sm { padding: 10px 20px; font-size: 13.5px; }
.btn--lg { padding: 16px 32px; font-size: 15px; }

/* ============================================================
   PULSE DOT
   ============================================================ */
.pulse-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(34,197,94,0.20);
  flex-shrink: 0;
  animation: pulse 2.2s ease-in-out infinite;
}
.pulse-dot--sm { width: 6px; height: 6px; }
.pulse-dot--green { background: var(--green); }
@keyframes pulse {
  0%,100% { opacity: 1; box-shadow: 0 0 0 3px rgba(34,197,94,0.20); }
  50%      { opacity: 0.6; box-shadow: 0 0 0 6px rgba(34,197,94,0.06); }
}

/* ============================================================
   LIVE BADGE
   ============================================================ */
.live-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 600;
  font-family: var(--font-mono);
  padding: 4px 10px;
  border-radius: 100px;
  background: rgba(34,197,94,0.10);
  border: 1px solid rgba(34,197,94,0.25);
  color: var(--green);
  flex-shrink: 0;
}
.live-badge--award {
  background: rgba(251,191,36,0.10);
  border-color: rgba(251,191,36,0.25);
  color: var(--gold);
}

/* ============================================================
   SCROLL REVEAL ANIMATIONS
   ============================================================ */
.reveal-fade,
.reveal-up,
.reveal-left,
.reveal-right {
  opacity: 0;
  transition: opacity 0.7s ease, transform 0.7s ease;
  transition-delay: var(--delay, 0s);
}
.reveal-fade  { transform: none; }
.reveal-up    { transform: translateY(24px); }
.reveal-left  { transform: translateX(-24px); }
.reveal-right { transform: translateX(24px); }

.reveal-fade.visible,
.reveal-up.visible,
.reveal-left.visible,
.reveal-right.visible {
  opacity: 1;
  transform: none;
}
/* Cascade delays for hero */
.reveal-delay-1 { --delay: 0.10s; }
.reveal-delay-2 { --delay: 0.20s; }
.reveal-delay-3 { --delay: 0.32s; }
.reveal-delay-4 { --delay: 0.46s; }
.reveal-delay-5 { --delay: 0.60s; }

/* ============================================================
   NAVBAR
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 900;
  background: var(--bg-nav);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line-soft);
  transition: background 0.35s ease, box-shadow 0.35s ease, transform 0.35s ease;
  height: var(--nav-h);
}
.nav.scrolled {
  box-shadow: var(--shadow-md);
}
.nav.hidden {
  transform: translateY(-100%);
}
.nav__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav__logo {
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--ink);
  transition: color 0.2s;
}
.logo-bracket { color: var(--blue); }
.logo-slash   { color: var(--purple); }
.nav__logo:hover .logo-bracket { color: var(--purple); }

.nav__links {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav__link {
  font-size: 14px;
  font-weight: 500;
  padding: 7px 14px;
  border-radius: 8px;
  color: var(--ink-muted);
  transition: color 0.2s, background 0.2s;
}
.nav__link:hover,
.nav__link.active { color: var(--ink); background: var(--line-soft); }

.nav__right {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav__cta {
  font-size: 13.5px;
  font-weight: 600;
  padding: 9px 18px;
  border-radius: 100px;
  border: 1px solid var(--line);
  color: var(--ink);
  transition: border-color 0.2s, background 0.2s, color 0.2s;
  white-space: nowrap;
}
.nav__cta:hover {
  border-color: var(--blue);
  color: var(--blue);
  background: rgba(108,142,245,0.06);
}

/* Theme toggle button */
.theme-btn {
  width: 48px;
  height: 26px;
  border-radius: 100px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  padding: 2px;
  cursor: pointer;
  position: relative;
  transition: background 0.3s, border-color 0.3s;
  flex-shrink: 0;
}
.theme-btn:hover { border-color: var(--blue); }
.theme-btn__track {
  display: flex;
  width: 100%;
  height: 100%;
  position: relative;
}
.theme-btn__thumb {
  position: absolute;
  top: 0;
  left: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--blue);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  overflow: hidden;
}
.theme-btn--sm { width: 40px; height: 22px; }
.theme-btn--sm .theme-btn__thumb { width: 17px; height: 17px; }

.theme-sun, .theme-moon {
  position: absolute;
  font-size: 9px;
  color: #fff;
  transition: opacity 0.3s, transform 0.3s;
}
/* Dark mode: show moon, thumb left */
[data-theme="dark"] .theme-btn__thumb { transform: translateX(0px); }
[data-theme="dark"] .theme-sun  { opacity: 0; transform: rotate(-90deg); }
[data-theme="dark"] .theme-moon { opacity: 1; transform: rotate(0deg); }
/* Light mode: show sun, thumb right */
[data-theme="light"] .theme-btn__thumb { transform: translateX(22px); background: #f59e0b; }
[data-theme="light"] .theme-btn--sm .theme-btn__thumb { transform: translateX(18px); }
[data-theme="light"] .theme-sun  { opacity: 1; transform: rotate(0deg); }
[data-theme="light"] .theme-moon { opacity: 0; transform: rotate(90deg); }

/* Hamburger */
.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  border-radius: 6px;
}
.nav__burger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.nav__burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger.open span:nth-child(2) { opacity: 0; }
.nav__burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav */
.nav__mobile {
  position: fixed;
  top: var(--nav-h);
  left: 0;
  right: 0;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  padding: 16px 24px 28px;
  gap: 2px;
  transform: translateY(-110%);
  opacity: 0;
  transition: transform 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94), opacity 0.35s ease;
  z-index: 890;
  pointer-events: none;
}
.nav__mobile.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}
.mobile-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-muted);
  padding: 13px 8px;
  border-bottom: 1px solid var(--line-soft);
  transition: color 0.2s;
}
.mobile-link:hover { color: var(--ink); }
.mobile-theme-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 8px 0;
  font-size: 14px;
  color: var(--ink-muted);
}

@media (max-width: 800px) {
  .nav__links, .nav__cta { display: none; }
  .nav__burger { display: flex; }
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: calc(var(--nav-h) + 40px) 24px 80px;
  position: relative;
  overflow: hidden;
}
/* Dark mode gradient background */
[data-theme="dark"] .hero {
  background:
    radial-gradient(ellipse 800px 600px at 10% 20%, rgba(108,142,245,0.12) 0%, transparent 60%),
    radial-gradient(ellipse 600px 500px at 90% 60%, rgba(167,139,250,0.10) 0%, transparent 60%),
    radial-gradient(ellipse 500px 400px at 50% 90%, rgba(56,189,248,0.07) 0%, transparent 60%),
    var(--bg);
}
[data-theme="light"] .hero {
  background:
    radial-gradient(ellipse 800px 600px at 10% 20%, rgba(59,92,240,0.07) 0%, transparent 60%),
    radial-gradient(ellipse 600px 500px at 90% 60%, rgba(124,58,237,0.06) 0%, transparent 60%),
    var(--bg);
}

/* Decorative orbs */
.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  animation: orbFloat 8s ease-in-out infinite;
}
.hero__orb--1 {
  width: 400px; height: 400px;
  background: rgba(108,142,245,0.18);
  top: -100px; left: -100px;
}
.hero__orb--2 {
  width: 300px; height: 300px;
  background: rgba(167,139,250,0.15);
  top: 40%; right: 5%;
  animation-delay: -3s;
}
.hero__orb--3 {
  width: 250px; height: 250px;
  background: rgba(56,189,248,0.12);
  bottom: 10%; left: 30%;
  animation-delay: -5.5s;
}
[data-theme="light"] .hero__orb--1 { background: rgba(59,92,240,0.08); }
[data-theme="light"] .hero__orb--2 { background: rgba(124,58,237,0.07); }
[data-theme="light"] .hero__orb--3 { background: rgba(2,132,199,0.07); }
@keyframes orbFloat {
  0%,100% { transform: translateY(0px) scale(1); }
  33%      { transform: translateY(-20px) scale(1.04); }
  66%      { transform: translateY(10px) scale(0.97); }
}

/* Dot-grid overlay */
.hero__grid {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, var(--ink-faint) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.4;
  pointer-events: none;
  mask-image: radial-gradient(ellipse at 50% 50%, black 30%, transparent 80%);
}
[data-theme="light"] .hero__grid { opacity: 0.25; }

.hero__inner {
  position: relative;
  z-index: 1;
  max-width: var(--container);
  width: 100%;
  margin: 0 auto;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  font-family: var(--font-mono);
  color: var(--green);
  padding: 7px 15px;
  border-radius: 100px;
  background: rgba(34,197,94,0.08);
  border: 1px solid rgba(34,197,94,0.20);
  margin-bottom: 28px;
}

.hero__name {
  font-size: clamp(52px, 9vw, 96px);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 0.95;
  margin-bottom: 18px;
  color: var(--ink);
}
.name-gradient {
  background: var(--grad-name);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__role {
  font-size: clamp(16px, 2.2vw, 20px);
  font-weight: 500;
  color: var(--ink-2);
  margin-bottom: 20px;
}
.role-accent { color: var(--blue); font-weight: 600; }

.hero__desc {
  max-width: 600px;
  font-size: 16px;
  color: var(--ink-muted);
  line-height: 1.7;
  margin-bottom: 32px;
}
.hero__desc strong { color: var(--ink-2); }

.hero__stats {
  display: flex;
  align-items: center;
  gap: 0;
  margin-bottom: 36px;
  padding: 20px 28px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  width: fit-content;
  box-shadow: var(--shadow-sm);
}
.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 24px;
  gap: 2px;
}
.stat:first-child { padding-left: 0; }
.stat:last-child  { padding-right: 0; }
.stat__num {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: var(--grad-name);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat__label {
  font-size: 11px;
  font-weight: 500;
  color: var(--ink-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}
.stat__divider {
  width: 1px;
  height: 40px;
  background: var(--line);
  flex-shrink: 0;
}

.hero__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.hero__socials {
  display: flex;
  gap: 10px;
  margin-bottom: 40px;
}
.social-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  color: var(--ink-muted);
  transition: border-color 0.2s, color 0.2s, transform 0.2s, background 0.2s;
}
.social-icon:hover {
  border-color: var(--blue);
  color: var(--blue);
  transform: translateY(-3px);
  background: rgba(108,142,245,0.08);
}

/* Terminal ticker */
.ticker {
  display: inline-flex;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  max-width: 100%;
}
.ticker__bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  overflow: hidden;
}
.ticker__dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--green);
  flex-shrink: 0;
  animation: pulse 2s ease-in-out infinite;
}
.ticker__label {
  font-size: 11px;
  color: var(--ink-muted);
  letter-spacing: 0.06em;
  flex-shrink: 0;
  text-transform: uppercase;
}
.ticker__line {
  font-size: 12.5px;
  color: var(--blue);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ticker__cursor {
  color: var(--blue);
  animation: blink 1s step-start infinite;
  flex-shrink: 0;
  font-size: 14px;
}
@keyframes blink { 50% { opacity: 0; } }

/* Scroll indicator */
.scroll-down {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  color: var(--ink-muted);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: scrollBounce 2.2s ease-in-out infinite;
  transition: color 0.2s;
}
.scroll-down:hover { color: var(--blue); }
.scroll-down i { font-size: 14px; }
@keyframes scrollBounce {
  0%,100% { transform: translateX(-50%) translateY(0); }
  50%      { transform: translateX(-50%) translateY(6px); }
}

/* ============================================================
   ABOUT
   ============================================================ */
.about__grid {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 60px;
  align-items: start;
}
.about__left {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.about__avatar-wrap {
  position: relative;
  width: fit-content;
}
.about__avatar-ring {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  padding: 3px;
  background: var(--grad-accent);
}
.about__avatar-inner {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--bg-card);
  border: 3px solid var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.avatar-initials {
  font-family: var(--font-display);
  font-size: 42px;
  font-weight: 800;
  background: var(--grad-name);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  letter-spacing: -0.04em;
}
.about__badge {
  position: absolute;
  bottom: -6px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 600;
  color: var(--green);
  padding: 5px 12px;
  border-radius: 100px;
  background: var(--bg-card);
  border: 1px solid rgba(34,197,94,0.3);
  white-space: nowrap;
  box-shadow: var(--shadow-sm);
}
.about__quick-info {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.quick-info-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13.5px;
  color: var(--ink-muted);
}
.quick-info-item i { color: var(--blue); margin-top: 2px; flex-shrink: 0; }
.quick-info-item a { color: var(--blue); transition: color 0.2s; }
.quick-info-item a:hover { color: var(--purple); }

.about__right { display: flex; flex-direction: column; gap: 0; }
.about__p {
  font-size: 15.5px;
  color: var(--ink-muted);
  margin-bottom: 18px;
  line-height: 1.75;
}
.about__p:last-of-type { margin-bottom: 28px; }
.about__actions { display: flex; gap: 12px; flex-wrap: wrap; }

@media (max-width: 860px) {
  .about__grid { grid-template-columns: 1fr; gap: 36px; }
  .about__left { flex-direction: row; align-items: flex-start; }
}
@media (max-width: 520px) {
  .about__left { flex-direction: column; }
}

/* ============================================================
   SKILLS
   ============================================================ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
  transition-delay: var(--delay, 0s);
}
.skill-card:hover {
  border-color: var(--blue);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}
.skill-card__icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(108,142,245,0.12);
  border: 1px solid rgba(108,142,245,0.20);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  color: var(--blue);
  margin-bottom: 14px;
}
[data-theme="light"] .skill-card__icon {
  background: rgba(59,92,240,0.08);
  border-color: rgba(59,92,240,0.20);
}
.skill-card__title {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--blue);
  margin-bottom: 14px;
  font-weight: 600;
}
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}
.tags span {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 4px 9px;
  border-radius: var(--radius-xs);
  background: var(--bg-alt);
  color: var(--ink-2);
  border: 1px solid var(--line-soft);
  transition: border-color 0.2s, color 0.2s;
}
.skill-card:hover .tags span {
  border-color: rgba(108,142,245,0.25);
}
.tags--sm span { font-size: 11px; padding: 4px 9px; }

@media (max-width: 900px) { .skills-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 500px) { .skills-grid { grid-template-columns: 1fr; } }

/* ============================================================
   PROJECTS
   ============================================================ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.project-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
  transition-delay: var(--delay, 0s);
  overflow: hidden;
}
.project-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--grad-accent);
  opacity: 0;
  transition: opacity 0.25s ease;
  border-radius: var(--radius);
  pointer-events: none;
}
.project-card:hover {
  border-color: var(--blue);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.project-card:hover::before { opacity: 0.04; }

.project-card__num {
  position: absolute;
  top: 20px;
  right: 24px;
  font-size: 11px;
  color: var(--ink-faint);
  letter-spacing: 0.08em;
}
.project-card__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}
.project-card__head {
  display: flex;
  align-items: center;
  gap: 12px;
}
.project-card__emoji {
  font-size: 24px;
  flex-shrink: 0;
  line-height: 1;
}
.project-card__name {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 3px;
}
.project-card__cat {
  font-size: 11px;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.project-card__desc {
  font-size: 14px;
  color: var(--ink-muted);
  line-height: 1.7;
  flex-grow: 1;
}
.project-card__metrics {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
}
.metric {
  display: flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--blue);
}
.metric i { font-size: 10px; }
.metric--gold { color: var(--gold); }

.project-card__links {
  display: flex;
  gap: 16px;
  margin-top: 4px;
}
.project-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-muted);
  padding: 7px 14px;
  border-radius: 8px;
  border: 1px solid var(--line);
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.project-link:hover {
  border-color: var(--ink-muted);
  color: var(--ink);
}
.project-link--live {
  border-color: rgba(108,142,245,0.3);
  color: var(--blue);
}
.project-link--live:hover {
  background: rgba(108,142,245,0.10);
  border-color: var(--blue);
  color: var(--blue);
}
.project-link i { font-size: 11px; }

@media (max-width: 760px) { .projects-grid { grid-template-columns: 1fr; } }

/* ============================================================
   TIMELINE / EXPERIENCE
   ============================================================ */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 48px;
}
.timeline__group { display: flex; flex-direction: column; gap: 0; }
.timeline__group-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 28px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-soft);
}
.timeline__group-label i { color: var(--blue); }

.timeline__items { position: relative; }
.timeline__item {
  display: grid;
  grid-template-columns: 1fr;
  position: relative;
  padding-left: 32px;
  padding-bottom: 32px;
  border-left: 2px solid var(--line);
  transition-delay: var(--delay, 0s);
}
.timeline__item:last-child { padding-bottom: 0; }

.timeline__dot {
  position: absolute;
  left: -7px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--bg-alt);
  transition: transform 0.2s;
}
.timeline__dot--blue   { background: var(--blue); box-shadow: 0 0 10px rgba(108,142,245,0.4); }
.timeline__dot--purple { background: var(--purple); box-shadow: 0 0 10px rgba(167,139,250,0.4); }
.timeline__dot--gold   { background: var(--gold); box-shadow: 0 0 10px rgba(251,191,36,0.4); }
.timeline__item:hover .timeline__dot { transform: scale(1.3); }

.timeline__content { display: flex; flex-direction: column; gap: 5px; }
.timeline__meta { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.timeline__date {
  font-size: 11.5px;
  color: var(--blue);
  letter-spacing: 0.06em;
}
.timeline__badge {
  font-size: 10.5px;
  font-weight: 600;
  font-family: var(--font-mono);
  padding: 2px 8px;
  border-radius: 100px;
  background: rgba(108,142,245,0.10);
  border: 1px solid rgba(108,142,245,0.25);
  color: var(--blue);
}
.timeline__badge--purple {
  background: rgba(167,139,250,0.10);
  border-color: rgba(167,139,250,0.25);
  color: var(--purple);
}
.timeline__badge--gold {
  background: rgba(251,191,36,0.10);
  border-color: rgba(251,191,36,0.25);
  color: var(--gold);
}
.timeline__title {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.02em;
}
.timeline__org { font-size: 13px; color: var(--ink-muted); font-weight: 500; }
.timeline__detail { font-size: 14px; color: var(--ink-muted); line-height: 1.65; margin-top: 4px; }

/* ============================================================
   CONTACT
   ============================================================ */
.contact-section {
  background: var(--bg);
  position: relative;
  overflow: hidden;
}
.contact-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: var(--grad-accent);
  opacity: 0.4;
}
.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 48px;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}
.contact-card::before {
  content: '';
  position: absolute;
  top: -80px; right: -80px;
  width: 300px; height: 300px;
  border-radius: 50%;
  background: var(--grad-accent);
  opacity: 0.06;
  pointer-events: none;
}
.contact-card__available {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  color: var(--green);
  margin-bottom: 24px;
  padding: 6px 14px;
  border-radius: 100px;
  background: rgba(34,197,94,0.08);
  border: 1px solid rgba(34,197,94,0.20);
}
.contact-card__body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.contact-card__info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.contact-info-item { display: flex; flex-direction: column; gap: 3px; }
.contact-info-label {
  font-size: 10.5px;
  color: var(--ink-muted);
  letter-spacing: 0.10em;
  text-transform: uppercase;
}
.contact-info-value { font-size: 15px; color: var(--ink-2); font-weight: 500; }
.contact-info-value a { color: var(--blue); transition: color 0.2s; }
.contact-info-value a:hover { color: var(--purple); }

.contact-card__cta { display: flex; flex-direction: column; align-items: flex-start; gap: 24px; }
.contact-social-row { display: flex; gap: 12px; flex-wrap: wrap; }
.contact-social-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-muted);
  padding: 8px 14px;
  border-radius: 8px;
  border: 1px solid var(--line);
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.contact-social-link:hover {
  border-color: var(--blue);
  color: var(--blue);
  background: rgba(108,142,245,0.06);
}

@media (max-width: 700px) {
  .contact-card { padding: 28px; }
  .contact-card__body { grid-template-columns: 1fr; gap: 32px; }
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--line);
  padding: 60px 24px 0;
}
.footer__inner {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--line-soft);
}
.footer__logo {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  display: inline-block;
  margin-bottom: 12px;
  transition: color 0.2s;
}
.footer__logo:hover .logo-bracket { color: var(--purple); }
.footer__tagline {
  font-size: 13.5px;
  color: var(--ink-muted);
  line-height: 1.6;
  margin-bottom: 20px;
}
.footer__socials {
  display: flex;
  gap: 8px;
}
.footer__socials a {
  width: 36px; height: 36px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--ink-muted);
  transition: border-color 0.2s, color 0.2s;
}
.footer__socials a:hover { border-color: var(--blue); color: var(--blue); }

.footer__col h4 {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--ink-2);
  margin-bottom: 18px;
}
.footer__col ul { display: flex; flex-direction: column; gap: 10px; }
.footer__col li a {
  font-size: 13.5px;
  color: var(--ink-muted);
  transition: color 0.2s;
}
.footer__col li a:hover { color: var(--blue); }

.footer__bottom {
  max-width: var(--container);
  margin: 0 auto;
  padding: 20px 0 28px;
  font-size: 12.5px;
  color: var(--ink-muted);
  text-align: center;
}
.footer__bottom a { color: var(--blue); transition: color 0.2s; }
.footer__bottom a:hover { color: var(--purple); }
.heart { display: inline-block; animation: heartbeat 1.4s ease-in-out infinite; }
@keyframes heartbeat {
  0%,100% { transform: scale(1); }
  25%      { transform: scale(1.15); }
  50%      { transform: scale(1); }
  75%      { transform: scale(1.10); }
}

@media (max-width: 760px) {
  .footer__inner { grid-template-columns: 1fr; }
}

/* ============================================================
   BACK TO TOP
   ============================================================ */
.back-to-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 800;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--blue);
  color: #fff;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(108,142,245,0.40);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: none;
}
.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.back-to-top:hover {
  background: var(--blue-2);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(108,142,245,0.5);
}

/* ============================================================
   FOCUS / ACCESSIBILITY
   ============================================================ */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ============================================================
   MAIN PADDING (nav offset)
   ============================================================ */
main { padding-top: var(--nav-h); }
.hero { padding-top: 0; margin-top: calc(-1 * var(--nav-h)); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 640px) {
  .section { padding: 72px 20px; }
  .hero { padding: calc(var(--nav-h) + 24px) 20px 72px; }
  .hero__name { font-size: clamp(44px, 12vw, 72px); }
  .hero__stats { padding: 16px 20px; }
  .stat { padding: 0 16px; }
  .stat__num { font-size: 22px; }
  .contact-card { padding: 24px; }
  .back-to-top { bottom: 20px; right: 20px; }
}