.video-grid { display: grid; grid-template-columns: 1fr; gap: 12px; justify-items: center; }
.video-item { max-width: 600px; width: 100%; }
.video-item video { width: 100%; height: 300px; object-fit: cover; border-radius: 12px; background: #000; }
.video-caption { margin: 6px 0 0; color: var(--muted); font-size: 14px; text-align: center; }
@media (max-width: 1000px) { .video-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 760px) { .video-grid { grid-template-columns: 1fr; } .video-item video { height: 200px; } }
/* Theme: 2-3 colors + subtle gradients */
:root {
  --bg: #0f1115;
  --text: #f5f7fa;
  --muted: #c5c7ce;
  --primary: #facc15;
  --accent: #fde047;
  --card: #1f2633;
  --shadow: 0 6px 24px rgba(0,0,0,0.5);
  --radius: 14px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #0b0d12 0%, var(--bg) 100%);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; display: block; border-radius: 10px; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.site-header {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px;
  background: rgba(31,38,51,0.85);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.brand { font-weight: 700; letter-spacing: .3px; color: #fff; }
.brand-avatar { width: 28px; height: 28px; border-radius: 50%; object-fit: cover; vertical-align: middle; margin-right: 8px; }
.top-nav a { margin: 0 8px; padding: 6px 10px; border-radius: 8px; }
.top-nav a:hover { background: rgba(250,204,21,0.12); }

.layout { display: grid; grid-template-columns: 240px 1fr; gap: 20px; max-width: 1200px; margin: 24px auto; padding: 0 16px; }

.sidebar { position: sticky; top: 68px; height: fit-content; }
.sidebar-inner { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 16px; }
.avatar { display: flex; justify-content: center; margin-bottom: 16px; }
.avatar img { width: 120px; height: 120px; border-radius: 50%; object-fit: cover; }
.side-links { display: grid; gap: 8px; }
.side-links a { color: var(--text); padding: 8px 10px; border-radius: 8px; }
.side-links a:hover { background: rgba(250,204,21,0.12); }

.content { min-width: 0; }
.section { margin-bottom: 12px; }
.section-title { margin: 2px 0 8px; font-size: 20px; color: var(--primary); text-transform: uppercase; letter-spacing: .6px; }

.card { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 8px; }

.btn { display: inline-block; padding: 10px 14px; border-radius: 10px; border: 1px solid rgba(255,255,255,0.12); color: #111; background: #fff; transition: transform .15s ease, box-shadow .15s ease; }
.btn:hover { transform: translateY(-1px); box-shadow: 0 8px 24px rgba(0,0,0,0.3); text-decoration: none; }
.btn.primary { color: #111; background: linear-gradient(135deg, var(--accent), var(--primary)); border: none; }

/* Hero profile card */
.profile-card { display: grid; grid-template-columns: 1fr; align-items: center; gap: 16px; }
.profile-actions { margin-top: 0; display: flex; gap: 8px; flex-wrap: wrap; }
.profile-photo img { border-radius: 14px; }

/* About */
.about-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
.about-list { color: var(--muted); padding-left: 18px; }
.socials { display: flex; gap: 12px; margin-top: 10px; flex-wrap: wrap; }
.socials a { background: rgba(20,184,166,0.08); padding: 6px 10px; border-radius: 8px; }

/* Gallery two-column */
.gallery-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
.gallery-grid.has-photo { grid-template-columns: 1fr 1fr; }
.gallery-photo img { width: 100%; height: auto; max-height: 220px; border-radius: 14px; object-fit: contain; }
/* Uppercase module subheadings */
.content h3 { text-transform: uppercase; letter-spacing: .6px; margin: 6px 0; }
.gallery-left h3 { margin: 4px 0; }

/* Slider */
.slider { position: relative; overflow: hidden; }
.slider-track { display: flex; transition: transform .45s ease; will-change: transform; }
.slide { min-width: 100%; }
.slide img { width: 100%; height: 340px; object-fit: cover; }
.caption { color: var(--muted); margin-top: 8px; }
.slider-btn { position: absolute; top: 50%; transform: translateY(-50%); background: rgba(255,255,255,0.9); border: none; width: 36px; height: 36px; border-radius: 50%; box-shadow: var(--shadow); cursor: pointer; }
.slider-btn.prev { left: 12px; }
.slider-btn.next { right: 12px; }
.dots { position: absolute; left: 0; right: 0; bottom: 10px; display: flex; justify-content: center; gap: 8px; }
.dots button { width: 8px; height: 8px; border-radius: 50%; border: none; background: rgba(0,0,0,0.2); padding: 0; cursor: pointer; }
.dots button.active { background: var(--primary); }

/* Tags */
.tags-list { display: grid; gap: 10px; }
.tag-item { display: grid; grid-template-columns: 40px 1fr; align-items: center; gap: 10px; padding: 10px; border-radius: 12px; background: #262c3a; border: 1px solid rgba(255,255,255,0.10); }
.tag-icon { font-size: 20px; text-align: center; }
.tag-text { color: #ffffff; }

/* Projects */
.projects-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.project-card { cursor: zoom-in; }
.project-card h3 { margin: 10px 0 6px; }
.project-card p { margin: 0; color: var(--muted); }

/* Contact */
.contact p { margin: 6px 0; }

.site-footer { margin: 28px 0; color: var(--muted); }
.footer-inner { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 10px 0; border-top: 1px solid rgba(255,255,255,0.08); }
.footer-links a { color: var(--muted); margin-left: 10px; }

/* Lightbox */
.lightbox { position: fixed; inset: 0; background: rgba(0,0,0,0.6); display: none; align-items: center; justify-content: center; padding: 20px; z-index: 100; }
.lightbox.open { display: flex; }
.lightbox-image { max-width: 92vw; max-height: 86vh; border-radius: 12px; box-shadow: var(--shadow); }
.lightbox-close { position: absolute; top: 16px; right: 16px; width: 40px; height: 40px; border-radius: 50%; border: none; background: #fff; cursor: pointer; box-shadow: var(--shadow); }
.lightbox-nav { position: absolute; top: 50%; transform: translateY(-50%); width: 40px; height: 40px; border-radius: 50%; border: none; background: #fff; cursor: pointer; box-shadow: var(--shadow); }
.lightbox-nav.prev { left: 16px; }
.lightbox-nav.next { right: 16px; }

/* Reveal animations */
.reveal { opacity: 0; transform: translateY(10px); transition: opacity .5s ease, transform .5s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* Responsive */
@media (max-width: 1000px) {
  .layout { grid-template-columns: 200px 1fr; }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .profile-card { grid-template-columns: 1fr; }
  .about-grid, .gallery-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .slide img { height: 240px; }
  .top-nav { display: none; }
}