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

:root {
  color-scheme: dark;
  --bg: #0b0d16;
  --bg-soft: #101528;
  --surface: rgba(255, 255, 255, 0.06);
  --surface-strong: rgba(255, 255, 255, 0.12);
  --text: #eef1ff;
  --muted: rgba(238, 241, 255, 0.65);
  --accent: #7f7bff;
  --accent-2: #24d2ff;
  --accent-3: #ff7bdc;
  --border: rgba(255, 255, 255, 0.12);
  --shadow: 0 30px 80px rgba(15, 20, 50, 0.4);
}

body[data-theme="light"] {
  color-scheme: light;
  --bg: #f6f7ff;
  --bg-soft: #ecefff;
  --surface: rgba(12, 20, 60, 0.06);
  --surface-strong: rgba(12, 20, 60, 0.12);
  --text: #10162f;
  --muted: rgba(16, 22, 47, 0.68);
  --accent: #5a5cff;
  --accent-2: #00a6ff;
  --accent-3: #ff6bb5;
  --border: rgba(12, 20, 60, 0.12);
  --shadow: 0 30px 80px rgba(55, 62, 90, 0.2);
}

body {
  font-family: "Noto Sans SC", system-ui, sans-serif;
  background: radial-gradient(circle at top, #161b38 0%, var(--bg) 60%);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

.ambient {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(127, 123, 255, 0.25), transparent 50%),
    radial-gradient(circle at 80% 10%, rgba(36, 210, 255, 0.2), transparent 45%),
    radial-gradient(circle at 70% 80%, rgba(255, 123, 220, 0.2), transparent 55%);
  filter: blur(40px);
  z-index: -1;
}

.particle-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -2;
  opacity: 0.7;
  mix-blend-mode: screen;
}

.site-header {
  position: sticky;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 8vw;
  backdrop-filter: blur(20px);
  background: linear-gradient(180deg, rgba(10, 12, 24, 0.9), rgba(10, 12, 24, 0.2));
  border-bottom: 1px solid var(--border);
  z-index: 10;
}

.logo {
  font-family: "JetBrains Mono", monospace;
  font-size: 20px;
  letter-spacing: 2px;
}

.nav {
  display: flex;
  gap: 28px;
  font-size: 15px;
  color: var(--muted);
}

.nav a:hover {
  color: var(--text);
}

.theme-toggle {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  padding: 10px 16px;
  border-radius: 999px;
  cursor: pointer;
  transition: 0.3s ease;
}

.theme-toggle:hover {
  transform: translateY(-2px);
  background: var(--surface-strong);
}

.controls-floating {
  position: fixed;
  top: 110px;
  right: 5vw;
  display: flex;
  gap: 12px;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 10px 14px;
  border-radius: 999px;
  z-index: 20;
  backdrop-filter: blur(14px);
}

.controls-floating label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
}

.controls-floating select {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 12px;
}

.control-btn {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  padding: 6px 12px;
  border-radius: 999px;
  cursor: pointer;
  transition: 0.3s ease;
}

.control-btn:hover {
  background: var(--surface-strong);
}

main {
  padding: 40px 8vw 80px;
  display: flex;
  flex-direction: column;
  gap: 100px;
  position: relative;
  z-index: 1;
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
  align-items: center;
}

.tagline {
  text-transform: uppercase;
  font-size: 13px;
  letter-spacing: 4px;
  color: var(--muted);
  margin-bottom: 16px;
}

.hero h1 {
  font-size: clamp(32px, 4vw, 54px);
  line-height: 1.2;
}

.intro {
  margin-top: 18px;
  color: var(--muted);
  max-width: 520px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-top: 26px;
}

.btn {
  padding: 12px 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  transition: 0.3s ease;
}

.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  box-shadow: var(--shadow);
}

.btn.primary:hover {
  transform: translateY(-3px);
}

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

.btn.ghost:hover {
  background: var(--surface);
}

.hero-stats {
  margin-top: 32px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 18px;
}

.stat-number {
  font-size: 24px;
  font-weight: 700;
  display: block;
}

.stat-label {
  font-size: 13px;
  color: var(--muted);
}

.hero-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 28px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.countdown-line {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--text);
  margin-top: 6px;
}

.card-header {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 14px;
}

.card-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.card-tags span {
  background: var(--surface-strong);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 12px;
}

.section {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.section-title h2 {
  font-size: clamp(26px, 3vw, 36px);
}

.section-title p {
  color: var(--muted);
}

.about-grid,
.posts-grid,
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.about-card,
.post-card,
.project-card,
.note-card,
.contact-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 24px;
  transition: 0.3s ease;
  opacity: 0;
  transform: translateY(16px);
}

.about-card:hover,
.post-card:hover,
.project-card:hover,
.note-card:hover {
  transform: translateY(-6px);
  background: var(--surface-strong);
}

.about-card.visible,
.post-card.visible,
.project-card.visible,
.note-card.visible,
.contact-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.post-meta {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 10px;
}

.post-link {
  margin-top: 14px;
  display: inline-flex;
  color: var(--accent-2);
  font-weight: 600;
}

.project-tags {
  margin-top: 16px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--muted);
}

.notes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.note-card {
  font-size: 15px;
  color: var(--muted);
}

.media-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.media-table {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: auto;
}

.media-table table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
}

.media-table th,
.media-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  color: var(--muted);
}

.media-table th {
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
  font-weight: 600;
}

.media-table tbody tr:hover {
  background: var(--surface-strong);
}

.media-table a {
  color: var(--accent-2);
  font-weight: 600;
}

.contact-card {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
}

.contact-info h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.footer {
  text-align: center;
  padding: 40px 0 60px;
  color: var(--muted);
  position: relative;
  z-index: 1;
}

@media (max-width: 860px) {
  .nav {
    display: none;
  }

  .site-header {
    padding: 20px 6vw;
  }

  .controls-floating {
    top: auto;
    bottom: 20px;
    right: 50%;
    transform: translateX(50%);
  }
}