:root {
  --font-base: 16px;
  --font-scale: 1;

  --accent: #0ea5e9;
  --accent2: #1e40af;
  --accent-glow: rgba(14,165,233,0.15);
  --accent2-glow: rgba(30,64,175,0.12);
  --gradient: linear-gradient(135deg, #0ea5e9, #1e40af);
  --gradient-text: linear-gradient(135deg, #38bdf8, #1d4ed8);

  --bg: #050508;
  --bg-secondary: #0a0a12;
  --bg-card: #0f0f1a;
  --bg-elevated: #141420;
  --text: #ecedee;
  --text-secondary: #8888a0;
  --text-tertiary: #555570;
  --border: #1c1c2e;
  --border-glow: rgba(14,165,233,0.08);
  --shadow: 0 8px 32px rgba(0,0,0,0.6);
  --shadow-glow: 0 0 40px rgba(14,165,233,0.06);
  --hero-grid-line: rgba(255,255,255,0.2);

  --header-bg: rgba(5,5,8,0.8);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --radius-xl: 20px;
}

[data-theme="light"] {
  --accent: #2563eb;
  --accent2: #1e40af;
  --accent-glow: rgba(37,99,235,0.1);
  --accent2-glow: rgba(30,64,175,0.08);
  --gradient: linear-gradient(135deg, #2563eb, #1e40af);
  --gradient-text: linear-gradient(135deg, #3b82f6, #1d4ed8);

  --bg: #f5f5f8;
  --bg-secondary: #eeeff2;
  --bg-card: #ffffff;
  --bg-elevated: #f0f0f5;
  --text: #111115;
  --text-secondary: #555570;
  --text-tertiary: #8888a0;
  --border: #dcdce6;
  --border-glow: rgba(37,99,235,0.06);
  --shadow: 0 8px 32px rgba(0,0,0,0.08);
  --shadow-glow: 0 0 40px rgba(37,99,235,0.04);
  --hero-grid-line: var(--border);

  --header-bg: rgba(245,245,248,0.8);
}

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

html { scroll-behavior: smooth; font-size: var(--font-base); }

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: var(--header-bg);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  animation: headerSlide 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes headerSlide {
  from { opacity: 0; transform: translateY(-100%); }
  to { opacity: 1; transform: translateY(0); }
}

.logo {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 1.15rem;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav ul, .nav-desktop ul { display: flex; gap: 2px; }

.nav-link {
  padding: 6px 16px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all 0.2s;
  position: relative;
}

.nav-link:hover { color: var(--text); background: var(--bg-card); }
.nav-link.active { color: var(--accent); background: var(--accent-glow); }
.nav-link i { display: none; }
.nav-close { display: none; }
.nav { display: none; }
.nav-brand-mobile,
.nav-domain-mobile { display: none; }

.header-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.access-controls {
  display: flex;
  align-items: center;
  gap: 2px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  padding: 2px;
  border: 1px solid var(--border);
}

.a-btn {
  width: 28px; height: 26px;
  border: none;
  background: transparent;
  color: var(--text-tertiary);
  font-family: 'Inter', sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.a-btn sup { font-size: 0.6rem; margin-left: 0.5px; }
.a-btn:hover { color: var(--text); }
.a-btn.active { background: var(--accent-glow); color: var(--accent); }

.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.theme-track {
  display: block;
  width: 40px; height: 22px;
  background: var(--bg-card);
  border-radius: 12px;
  border: 1px solid var(--border);
  position: relative;
  transition: all 0.3s;
}

.theme-thumb {
  position: absolute;
  top: 2px; left: 2px;
  width: 16px; height: 16px;
  background: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s;
}

.theme-thumb i {
  font-size: 0.5rem;
  color: #fff;
  position: absolute;
  transition: opacity 0.3s;
}

.theme-thumb .ri-sun-fill { opacity: 0; }
.theme-thumb .ri-moon-fill { opacity: 1; }

[data-theme="light"] .theme-thumb { transform: translateX(18px); }
[data-theme="light"] .theme-thumb .ri-sun-fill { opacity: 1; }
[data-theme="light"] .theme-thumb .ri-moon-fill { opacity: 0; }

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.menu-toggle span {
  display: block;
  width: 20px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: 0.3s;
}

.menu-toggle.active span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 80px 0;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--hero-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--hero-grid-line) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 60% 50% at 50% 55%, black 20%, transparent 65%);
  -webkit-mask-image: radial-gradient(ellipse 60% 50% at 50% 55%, black 20%, transparent 65%);
  opacity: 0.3;
}

.hero-orbs { position: absolute; inset: 0; }

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: orbFloat 12s ease-in-out infinite;
}

.orb-1 {
  width: 500px; height: 500px;
  background: rgba(14,165,233,0.06);
  top: -100px; left: -100px;
  animation-delay: 0s;
}

.orb-2 {
  width: 400px; height: 400px;
  background: rgba(30,64,175,0.05);
  bottom: -80px; right: -80px;
  animation-delay: -4s;
}

.orb-3 {
  width: 300px; height: 300px;
  background: rgba(14,165,233,0.04);
  top: 40%; left: 50%;
  animation-delay: -8s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(40px, -30px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

/* Code Symbols */
.hero-code-symbols {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.code-symbol {
  position: absolute;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  color: var(--accent);
  opacity: 0;
  animation: codeSymbolFloat var(--cs-duration) ease-in-out infinite;
  animation-delay: var(--cs-delay);
  user-select: none;
}

@keyframes codeSymbolFloat {
  0% { opacity: 0; transform: translateY(0) scale(0.9); }
  25% { opacity: 0.25; transform: translateY(calc(var(--cs-distance) * -0.3)) scale(1); }
  50% { opacity: 0.35; transform: translateY(calc(var(--cs-distance) * -0.5)) scale(1.05); }
  75% { opacity: 0.2; transform: translateY(calc(var(--cs-distance) * -0.8)) scale(0.95); }
  100% { opacity: 0; transform: translateY(calc(var(--cs-distance) * -1)) scale(0.8); }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
  animation: heroEnter 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes heroEnter {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-title { animation: heroFadeIn 0.7s 0.3s both cubic-bezier(0.16, 1, 0.3, 1); }
.hero-sub { animation: heroFadeIn 0.7s 0.45s both cubic-bezier(0.16, 1, 0.3, 1); }
.hero-actions { animation: heroFadeIn 0.7s 0.6s both cubic-bezier(0.16, 1, 0.3, 1); }
.hero-tech-row { animation: heroFadeIn 0.7s 0.75s both cubic-bezier(0.16, 1, 0.3, 1); }

@keyframes heroFadeIn {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.2rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.04em;
  margin-bottom: 20px;
}

.hero-title-line { display: block; }

.hero-title-grad {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 540px;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.btn-primary, .btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: all 0.25s;
  font-family: inherit;
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 4px 20px rgba(14,165,233,0.2);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(14,165,233,0.3);
}

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

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
  transform: translateY(-2px);
}

.hero-tech-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.hero-tech-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-tertiary);
  padding: 5px 14px;
  border-radius: 50px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: all 0.25s;
}

.hero-tech-pill:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}

.hero-tech-pill i { font-size: 0.85rem; }

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-tertiary);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  z-index: 2;
  animation: heroFadeIn 0.7s 1s both cubic-bezier(0.16, 1, 0.3, 1);
}

.scroll-line {
  width: 1px;
  height: 32px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0% { opacity: 0; transform: scaleY(0); transform-origin: top; }
  50% { opacity: 1; transform: scaleY(1); transform-origin: top; }
  100% { opacity: 0; transform: scaleY(0); transform-origin: bottom; }
}

/* Sections */
.section {
  padding: 72px 0;
  position: relative;
  scroll-margin-top: 72px;
}

.section-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 56px;
}

.reveal-header {
  opacity: 0;
  transition: opacity 0.5s ease;
}

.reveal-header.visible {
  opacity: 1;
}

.reveal-header .section-title {
  display: inline-block;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.5s ease;
  transform: translateY(6px);
  opacity: 0;
  transition-delay: 0.1s;
}

.reveal-header.visible .section-title {
  transform: translateY(0);
  opacity: 1;
}

.reveal-header .section-line {
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  transition-delay: 0.2s;
}

.reveal-header.visible .section-line {
  transform: scaleX(1);
}

.section-number {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
  opacity: 0.6;
  letter-spacing: 1px;
}

.section-title {
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  white-space: nowrap;
}

.section-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, var(--border), transparent);
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.about-paragraph {
  font-size: 1.02rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-paragraph strong { color: var(--text); }

.about-label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 12px;
}

.about-heading {
  font-size: 1.6rem;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  color: var(--text);
}

.about-highlight-year {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.about-values {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 28px;
}

.about-value {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 6px 16px;
  border-radius: 50px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: all 0.25s;
}

.about-value:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Skills Grid */
.about-expertise {
  align-self: start;
}

.skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
}

.skill-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 22px 8px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: all 0.25s;
  position: relative;
  overflow: hidden;
}

.skill-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient);
  opacity: 0;
  transition: opacity 0.25s;
}

.skill-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
}

.skill-card:hover::before {
  opacity: 1;
}

.skill-icon {
  font-size: 1.2rem;
  color: var(--accent);
  line-height: 1;
}

.skill-name {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text);
  text-align: center;
  line-height: 1.2;
}

.skill-card[data-category="frontend"] .skill-icon { color: #0ea5e9; }
.skill-card[data-category="backend"] .skill-icon { color: #22c55e; }
.skill-card[data-category="tools"] .skill-icon { color: #0ea5e9; }





/* Portfolio */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.portfolio-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.3s;
  aspect-ratio: 16 / 10;
}

.portfolio-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 8px 40px rgba(14,165,233,0.06);
}

.portfolio-card-image {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform 0.5s ease;
}

.portfolio-card:hover .portfolio-card-image {
  transform: scale(1.05);
}

.portfolio-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(5,5,8,0.9) 10%, rgba(5,5,8,0.1) 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 6px;
  padding: 24px;
  transition: background 0.3s;
}

.portfolio-card:hover .portfolio-card-overlay {
  background: linear-gradient(to top, rgba(5,5,8,0.95) 10%, rgba(5,5,8,0.2) 60%);
}

.portfolio-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
}

.portfolio-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.portfolio-card-tag {
  font-size: 0.7rem;
  font-weight: 600;
  color: rgba(255,255,255,0.85);
  padding: 2px 10px;
  border-radius: 50px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.12);
}

.portfolio-card-badge {
  align-self: flex-start;
  font-size: 0.6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 2px 10px;
  border-radius: 50px;
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 8px rgba(14,165,233,0.3);
}/* Certificates */
.cert-grid {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.cert-group-title {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 12px;
}

.cert-subgrid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
}

.cert-card {
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: all 0.25s;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.cert-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px var(--accent-glow);
}

.cert-card-inner {
  padding: 14px 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.cert-card-link {
  text-decoration: none;
  color: inherit;
  display: flex;
  align-items: center;
  gap: 14px;
}

.cert-card-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--accent-glow);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.cert-card-body {
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 0;
}

.cert-card-title {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
}

.cert-card-issuer {
  font-size: 0.8rem;
  color: var(--text-tertiary);
  font-weight: 500;
}

.cert-card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: auto;
  padding-top: 8px;
  border-top: 1px solid var(--border);
}

.cert-card-codes {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.cert-card-code-row {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 2px 6px;
}

.cert-card-code-label {
  font-size: 0.55rem;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.3px;
  opacity: 0.6;
}

.cert-card-code {
  font-size: 0.65rem;
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-tertiary);
  font-weight: 500;
  letter-spacing: 0.3px;
}

.cert-card-copy {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border: none;
  background: transparent;
  color: var(--text-tertiary);
  font-size: 0.7rem;
  cursor: pointer;
  border-radius: 3px;
  transition: all 0.2s;
  padding: 0;
}

.cert-card-copy:hover {
  color: var(--accent);
  background: var(--accent-glow);
}

.cert-card-copy.copied {
  color: #22c55e;
}

.cert-card-verify {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  transition: opacity 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 3px;
}

.cert-card-verify:hover {
  opacity: 0.8;
  text-decoration: underline;
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(5,5,8,0.7);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  max-width: 640px;
  width: 100%;
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  overflow: hidden;
  transform: scale(0.92) translateY(12px);
  transition: transform 0.35s ease;
  position: relative;
}

.modal-overlay.open .modal {
  transform: scale(1) translateY(0);
}

.modal-close {
  position: absolute;
  top: 16px; right: 16px;
  z-index: 10;
  width: 36px; height: 36px;
  border-radius: 50%;
  border: none;
  background: rgba(5,5,8,0.6);
  backdrop-filter: blur(10px);
  color: #fff;
  font-size: 0.9rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.modal-close:hover { background: rgba(5,5,8,0.9); }

.modal-image {
  width: 100%;
  height: 240px;
  background-size: cover;
  background-position: center;
}

.modal-body { padding: 32px; }

.modal-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}

.modal-tag {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--accent);
  background: var(--accent-glow);
  padding: 3px 12px;
  border-radius: 50px;
}

.modal-title {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}

.modal-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 28px;
}

.modal-actions {
  display: flex;
  gap: 10px;
}

.modal-btn { padding: 10px 22px; font-size: 0.85rem; }

.modal-btn-play i { font-size: 1.1rem; }

.modal-play-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  background: #111;
  border-radius: 8px;
  text-decoration: none;
  transition: opacity 0.2s;
  border: none;
}

.modal-play-badge:hover {
  opacity: 0.85;
}

.play-badge-img {
  height: 56px;
  width: auto;
  display: block;
  margin-bottom: 16px;
}

/* Confirmation Modal */
.modal-confirm {
  max-width: 400px;
  text-align: center;
}

.modal-confirm-body {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 48px 40px;
}

.confirm-icon {
  font-size: 3rem;
  color: #22c55e;
}

.confirm-title {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.confirm-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.confirm-btn {
  margin-top: 8px;
  padding: 12px 36px;
}

/* Contact */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
}

.contact-channels {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: stretch;
}

.contact-channels-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

.contact-channel {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: all 0.25s;
  text-decoration: none;
}

.contact-channel:hover {
  border-color: var(--accent);
  background: var(--accent-glow);
  transform: translateX(4px);
}

.channel-icon {
  width: 40px; height: 40px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1rem;
  flex-shrink: 0;
}

.channel-info {
  display: flex;
  flex-direction: column;
}

.channel-label {
  font-size: 0.78rem;
  color: var(--text-tertiary);
  font-weight: 500;
}

.channel-value {
  font-size: 0.92rem;
  color: var(--text);
  font-weight: 600;
}

/* Contact QR Code */
.contact-qrcode {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px;
  border-radius: var(--radius);
  border: 2px solid #25D366;
  background: var(--bg-card);
  transition: all 0.25s;
  text-decoration: none;
}

.contact-qrcode:hover {
  background: var(--bg-elevated);
  border-color: #128C7E;
  transform: translateY(-2px);
}

.contact-qrcode-img {
  width: 100px;
  height: 100px;
  border-radius: var(--radius-sm);
  display: block;
}

.contact-qrcode-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.contact-qrcode-label i {
  color: #25D366;
  font-size: 1.2rem;
}

/* Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group {
  position: relative;
}

.form-input {
  width: 100%;
  padding: 16px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: inherit;
  font-size: 0.92rem;
  transition: all 0.25s;
  outline: none;
}

.form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-input:not(:placeholder-shown) { border-color: var(--accent); }

.form-label {
  position: absolute;
  left: 18px;
  top: 16px;
  color: var(--text-tertiary);
  font-size: 0.92rem;
  transition: all 0.2s;
  pointer-events: none;
  background: var(--bg-card);
  padding: 0 4px;
}

.form-input:focus + .form-label,
.form-input:not(:placeholder-shown) + .form-label {
  top: -8px;
  font-size: 0.75rem;
  color: var(--accent);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.btn-submit {
  justify-content: center;
  position: relative;
}

.btn-submit .btn-text,
.btn-submit .btn-sent,
.btn-submit .btn-loader {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: opacity 0.3s;
}

.btn-submit .btn-sent,
.btn-submit .btn-loader {
  position: absolute;
  opacity: 0;
}

.btn-submit.sending .btn-text { opacity: 0; }
.btn-submit.sending .btn-loader { opacity: 1; }
.btn-submit.sent .btn-text { opacity: 0; }
.btn-submit.sent .btn-sent { opacity: 1; }

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 56px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-brand .logo {
  font-size: 1.2rem;
}

.footer-tagline {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 340px;
}

.footer-domain {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  font-weight: 700;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-col-title {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 16px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: all 0.2s;
}

.footer-links a:hover {
  color: var(--accent);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  border-top: 1px solid var(--border);
}

.footer-copy, .footer-made {
  font-size: 0.82rem;
  color: var(--text-tertiary);
}

.footer-made i { color: var(--accent); }

.footer-share-title {
  margin-top: 20px;
}

.footer-share {
  display: flex;
  gap: 8px;
}

.share-btn {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: all 0.2s;
  text-decoration: none;
}

.share-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
  transform: translateY(-2px);
}

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-scale.visible {
  opacity: 1;
  transform: scale(1);
}

.reveal-item {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal-item:nth-child(1) { transition-delay: 0s; }
.reveal-item:nth-child(2) { transition-delay: 0.06s; }
.reveal-item:nth-child(3) { transition-delay: 0.12s; }
.reveal-item:nth-child(4) { transition-delay: 0.18s; }
.reveal-item:nth-child(5) { transition-delay: 0.24s; }
.reveal-item:nth-child(6) { transition-delay: 0.3s; }
.reveal-item:nth-child(7) { transition-delay: 0.36s; }
.reveal-item:nth-child(8) { transition-delay: 0.42s; }
.reveal-item:nth-child(9) { transition-delay: 0.48s; }
.reveal-item:nth-child(10) { transition-delay: 0.54s; }

/* Spin */
.fa-spin {
  animation: fa-spin 2s linear infinite;
  display: inline-block;
}

@keyframes fa-spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Focus */
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* Privacy Bar */
.privacy-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 999;
  background: var(--bg-elevated);
  border-top: 2px solid var(--accent);
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  box-shadow: 0 -4px 24px rgba(14,165,233,0.08);
  animation: privacySlideUp 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  transform: translateY(100%);
}

@keyframes privacySlideUp {
  to { transform: translateY(0); }
}

.privacy-bar.hidden {
  animation: privacySlideDown 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes privacySlideDown {
  to { transform: translateY(100%); }
}

.privacy-bar-text {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin: 0;
  text-align: center;
}

.privacy-bar-link {
  color: var(--accent);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.2s;
}

.privacy-bar-link:hover {
  color: var(--accent2);
}

.privacy-bar-close {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border: 1px solid var(--accent);
  background: var(--accent-glow);
  border-radius: 50%;
  color: var(--accent);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  transition: all 0.2s;
}

.privacy-bar-close:hover {
  color: var(--text);
  background: var(--bg-card);
  border-color: var(--accent);
}

@media (max-width: 768px) {
  .privacy-bar {
    flex-direction: column;
    gap: 10px;
    padding: 12px 16px;
  }
  .privacy-bar-text {
    font-size: 0.8rem;
  }
}

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

/* Responsive */
@media (max-width: 968px) {
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .contact-layout { grid-template-columns: 1fr; gap: 40px; }
  .section-title { font-size: 2rem; }
  .hero-title { font-size: clamp(2.2rem, 8vw, 3.2rem); }
}

@media (max-width: 768px) {
  .section { padding: 48px 0; }

  .nav-brand-mobile,
  .nav-domain-mobile {
    display: block;
    text-align: center;
    font-family: 'JetBrains Mono', monospace;
    font-weight: 700;
  }

  .nav-brand-mobile {
    font-size: 1.1rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
  }

  .nav-domain-mobile {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    margin-top: 16px;
  }

  .nav {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: 1001;
    background: var(--bg-secondary);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    padding: 80px 24px 24px;
    transform: translateX(100%);
    opacity: 0;
    transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: none;
    display: flex;
    flex-direction: column;
  }

  .nav.active {
    transform: translateX(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-close {
    position: absolute;
    top: 72px;
    right: 16px;
    width: 44px;
    height: 44px;
    border: none;
    background: var(--bg-card);
    color: var(--text);
    font-size: 1.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s;
  }

  .nav-close:hover {
    background: var(--bg-elevated);
  }

  .nav ul {
    flex-direction: column;
    gap: 4px;
    flex: 1;
    justify-content: center;
  }

  .nav-link {
    font-size: 1.15rem;
    padding: 14px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-radius: 12px;
    transition: background 0.2s;
    font-weight: 500;
  }

  .nav-link i {
    font-size: 1.3rem;
    width: 24px;
    text-align: center;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .nav-link.active {
    background: var(--accent-glow);
    color: var(--accent);
  }

  .nav-link:not(.active):hover {
    background: var(--bg-card);
  }

  .menu-toggle { display: flex; }
  .access-controls { display: none; }
  .nav-desktop { display: none; }

  .hero { min-height: 100vh; padding: 56px 0 0; }
  .hero-scroll { display: none; }
  .hero-tech-row { justify-content: center; }
  .hero-content { text-align: center; }
  .hero-sub { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }

  .skills-grid { grid-template-columns: 1fr 1fr; gap: 8px; }

  .portfolio-grid { grid-template-columns: 1fr; }
  .cert-subgrid { grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-brand { align-items: center; text-align: center; }
  .footer-tagline { max-width: 100%; }
  .footer-col { text-align: center; }
  .footer-bottom { flex-direction: column; gap: 4px; text-align: center; }

  .contact-channels { grid-template-columns: 1fr; }
  .contact-channels-list { width: 100%; }
  .contact-qrcode { width: 100%; }
  .contact-qrcode-img { width: 80px; height: 80px; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }

  .hero-title { font-size: clamp(1.8rem, 10vw, 2.2rem); }
  .hero-actions { flex-direction: column; width: 100%; }
  .btn-primary, .btn-outline { width: 100%; justify-content: center; }

  .section-title { font-size: 1.6rem; }
  .section-number { display: none; }

  .about-heading { font-size: 1.3rem; }
  .about-value { font-size: 0.78rem; padding: 5px 14px; }
  .skills-grid { grid-template-columns: 1fr 1fr 1fr; gap: 6px; }
  .skill-card { padding: 10px 6px; }
  .skill-icon { font-size: 1rem; }
  .skill-name { font-size: 0.7rem; }

  .contact-channels { gap: 6px; }
  .contact-channel { padding: 12px 14px; }

  .modal { border-radius: var(--radius-lg); }
  .modal-body { padding: 24px 20px; }
  .modal-image { height: 180px; }
  .modal-actions { flex-direction: column; }
  .modal-btn { width: 100%; justify-content: center; }
}