:root {
  --bg: #0b0c10;
  --panel: #111318;
  --text: #e6e7eb;
  --muted: #a2a7b4;
  --brand: #6bd0ff;
  --brand-strong: #3bb7ff;
  --accent: #b794f4;
  --danger: #ff6b6b;
  --ring: 0 0 0 2px rgba(107, 208, 255, 0.35);
}

[data-theme="light"] {
  --bg: #ffffff;
  --panel: #f7f8fb;
  --text: #141924;
  --muted: #4b5563;
  --brand: #2563eb;
  --brand-strong: #1d4ed8;
  --accent: #7c3aed;
  --danger: #dc2626;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, Segoe UI, Roboto, Arial;
  background: radial-gradient(1200px 800px at 100% -20%, rgba(107,208,255,0.08), transparent),
              radial-gradient(900px 700px at -10% 120%, rgba(124,58,237,0.10), transparent),
              var(--bg);
  color: var(--text);
  line-height: 1.75;
}

.container {
  width: min(1100px, 92%);
  margin: 0 auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px ;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: color-mix(in oklab, var(--bg) 95%, transparent);
  backdrop-filter: blur(15px);
  border-bottom: 1px solid color-mix(in oklab, var(--text) 10%, transparent);
  z-index: 50;
}
.brand a { text-decoration: none; color: var(--text); font-weight: 800; font-size: 1.25rem; }
.site-nav { display: flex; gap: 16px; align-items: center; padding-inline-end: 10px; }
.site-nav a { 
  color: var(--text); 
  text-decoration: none; 
  opacity: .85; 
  padding: 8px 16px; 
  border-radius: 12px; 
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.site-nav a::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, color-mix(in oklab, var(--brand) 20%, transparent), transparent);
  transition: left 0.5s ease;
}

.site-nav a:hover {
  opacity: 1;
  background: color-mix(in oklab, var(--brand) 10%, transparent);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(107, 208, 255, 0.3);
}

.site-nav a:hover::before {
  left: 100%;
}

.site-nav a.active {
  background: color-mix(in oklab, var(--brand) 15%, transparent);
  color: var(--brand);
  font-weight: 600;
  box-shadow: 0 2px 10px rgba(107, 208, 255, 0.4);
}
.menu-toggle { display: none; }

.ghost { background: transparent; border: 1px solid color-mix(in oklab, var(--text) 25%, transparent); color: var(--text); padding: 8px 10px; border-radius: 10px; cursor: pointer; }
.ghost:focus { outline: none; box-shadow: var(--ring); }

/* Theme switch */
.theme-switch { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; user-select: none; }
.theme-switch input { display: none; }
.theme-switch .slider { position: relative; width: 44px; height: 24px; background: color-mix(in oklab, var(--text) 18%, transparent); border-radius: 999px; transition: background .2s ease; }
.theme-switch .slider::after { content: ""; position: absolute; top: 3px; left: 3px; width: 18px; height: 18px; background: var(--text); border-radius: 50%; transition: transform .2s ease, background .2s ease; }
.theme-switch input:checked + .slider { background: color-mix(in oklab, var(--brand) 45%, transparent); }
.theme-switch input:checked + .slider::after { transform: translateX(20px); background: white; }
.theme-switch .icon-sun, .theme-switch .icon-moon { color: var(--muted); opacity: .9; display: inline-flex; align-items: center; }
.theme-switch input:checked ~ .icon-sun { opacity: .6; }
.theme-switch input:not(:checked) ~ .icon-moon { opacity: .6; }

.hero { display: grid; grid-template-columns: 1.2fr .8fr; gap: 28px; padding: 140px 0 36px; align-items: center; }
.hero h1 { font-size: clamp(1.8rem, 3.6vw, 3rem); margin: 0 0 6px; }
.hero .muted { margin: 0 0 14px; color: var(--muted); font-weight: 600; }
.hero .actions { display: flex; gap: 14px; flex-wrap: nowrap; align-items: center; }
.hero .actions a { text-decoration: none; }
.social-btn { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; }
.hero .actions svg { width: 18px; height: 18px; fill: currentColor; opacity: .9; }
.social-btn .icon { font-size: 1rem; line-height: 1; }
.hero .social { display: flex; gap: 10px; margin-top: 14px; }
.hero-media { display: flex; justify-content: center; }
.hero-media img { width: min(260px, 80%); aspect-ratio: 1/1; border-radius: 22px; object-fit: cover; box-shadow: 0 20px 60px rgba(0,0,0,.35), 0 0 0 1px rgba(255,255,255,.05) inset; }

.section { padding: 64px 0; }
.section { scroll-margin-top: 80px; }
.section-title { margin: 0 0 16px; font-size: 1.6rem; position: relative; display: inline-block; }
.section-title::after { content: ""; position: absolute; inset-inline-end: 0; bottom: -6px; width: 60%; height: 3px; background: linear-gradient(90deg, var(--brand), var(--accent)); border-radius: 2px; }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.cards { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.section #projects-grid { margin-top: 26px; }
.card { background: color-mix(in oklab, var(--panel) 90%, transparent); border: 1px solid color-mix(in oklab, var(--text) 6%, transparent); border-radius: 16px; padding: 16px; box-shadow: 0 8px 30px rgba(0,0,0,.18); transition: transform .25s ease, box-shadow .25s ease; }
.card:hover { transform: translateY(-4px); box-shadow: 0 14px 40px rgba(0,0,0,.28); }
.card h3 { margin: 0 0 8px; font-size: 1.1rem; }
.card p { margin: 0 0 12px; color: var(--muted); }
.card > * + * { margin-top: 10px; }
.card .actions { display: flex; gap: 12px; margin-top: 10px; flex-wrap: wrap; }
.pill { display: inline-block; padding: 6px 10px; border-radius: 999px; background: color-mix(in oklab, var(--brand) 10%, var(--panel)); border: 1px solid color-mix(in oklab, var(--brand) 30%, transparent); color: var(--text); font-size: .85rem; margin: 3px; }

/* Project cards with image */
.project-card { padding: 0; overflow: hidden; cursor: pointer; }
.project-thumb { width: 100%; height: 220px; object-fit: cover; display: block; }
.project-body { padding: 14px 16px 16px; }
.project-title { margin: 0 0 6px; font-size: 1.05rem; }
.project-tech { display: flex; flex-wrap: wrap; gap: 6px; }

/* Modal */
.modal { position: fixed; inset: 0; display: none; align-items: center; justify-content: center; z-index: 100; padding: 14px; }
.modal.open { display: flex; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(0,0,0,.6); backdrop-filter: blur(2px); }
.modal-dialog { position: relative; width: min(860px, 92%); max-height: 90vh; overflow: auto; background: var(--panel); border: 1px solid color-mix(in oklab, var(--text) 10%, transparent); border-radius: 16px; padding: 18px; box-shadow: 0 20px 80px rgba(0,0,0,.45); }
.modal-dialog > * + * { margin-top: 12px; }
.modal-close { position: absolute; top: 10px; inset-inline-end: 10px; width: 34px; height: 34px; display: grid; place-items: center; background: color-mix(in oklab, var(--panel) 85%, transparent); border: 1px solid color-mix(in oklab, var(--text) 15%, transparent); border-radius: 999px; color: var(--text); font-size: 20px; line-height: 1; cursor: pointer; z-index: 3; }
.modal-close:focus { outline: none; box-shadow: var(--ring); }
.modal-close:hover { background: color-mix(in oklab, var(--panel) 92%, transparent); }
.modal-dialog img { width: 100%; max-height: 60vh; object-fit: contain; display: block; background: color-mix(in oklab, var(--panel) 90%, transparent); border-radius: 12px; }
.modal-dialog h3 { margin: 12px 0 8px; font-size: 1.35rem; text-align: center; }
.modal-tags { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0 10px; justify-content: center; }
.modal-tags .pill { margin: 0; }
.modal-features { list-style: disc; margin: 8px 0 0 18px; padding: 0; color: var(--text); }
.modal-features li { margin: 6px 0; }
.modal-dialog .actions { display: flex; justify-content: center; gap: 12px; padding-top: 12px; margin-top: 12px; flex-wrap: wrap; }
.modal-links-group { width: 100%; background: color-mix(in oklab, var(--panel) 92%, transparent); border: 1px solid color-mix(in oklab, var(--text) 10%, transparent); border-radius: 12px; padding: 12px; }
.modal-links-group + .modal-links-group { margin-top: 10px; }
.modal-links-group h4 { margin: 0 0 8px; font-size: 1rem; color: var(--muted); text-align: start; }
.group-actions { display: flex; gap: 10px; flex-wrap: wrap; justify-content: flex-start; }
.modal-dialog .actions .btn { min-width: 160px; text-align: center; padding: 12px 16px; border-radius: 12px; box-shadow: 0 6px 18px rgba(0,0,0,.22); }

@media (max-width: 640px) {
  .modal { padding: 10px; }
  .modal-dialog { padding: 14px; max-height: 88vh; }
  .modal-dialog img { max-height: 40vh; }
}

/* Education layout (consistent with container gutters) */
#education-list.cards { grid-template-columns: 1fr; }
#education-list .edu-card {
  display: grid;
  grid-template-columns: 6px 28px 1fr auto;
  grid-auto-rows: auto;
  align-items: start;
  gap: 10px 14px;
  padding: 18px 18px;
}
#education-list .edu-card .edu-accent { grid-column: 1; grid-row: 1 / span 3; background: linear-gradient(180deg, var(--brand), var(--accent)); border-radius: 999px; }
#education-list .edu-card .edu-icon { grid-column: 2; width: 28px; height: 28px; border-radius: 8px; display: grid; place-items: center; background: color-mix(in oklab, var(--panel) 86%, transparent); border: 1px solid color-mix(in oklab, var(--text) 10%, transparent); color: var(--brand); }
#education-list .edu-card .edu-content { grid-column: 3; }
#education-list .edu-card .edu-meta { grid-column: 4; color: var(--muted); font-size: .95rem; margin: 0; }
#education-list .edu-card h3 { margin: 0; font-size: 1.1rem; font-weight: 700; letter-spacing: .2px; line-height: 1.5; overflow-wrap: anywhere; hyphens: auto; }
#education-list .edu-card .edu-degree { margin-top: 2px; color: var(--text); opacity: .92; font-size: 1rem; }
#education-list .edu-card .edu-major { margin-top: 2px; color: var(--muted); font-size: .95rem; }

.highlights { list-style: none; padding: 0; margin: 12px 0 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.highlights li { background: color-mix(in oklab, var(--panel) 92%, transparent); border: 1px dashed color-mix(in oklab, var(--text) 10%, transparent); border-radius: 12px; padding: 10px 12px; }

.timeline { list-style: none; margin: 0; padding: 0; border-inline-start: 2px solid color-mix(in oklab, var(--text) 10%, transparent); padding-inline-start: 16px; }
.timeline li { position: relative; margin: 0 0 16px; }
.timeline li::before { content: ""; position: absolute; inset-inline-start: -11px; top: 4px; width: 14px; height: 14px; border-radius: 50%; background: var(--brand); box-shadow: 0 0 0 3px color-mix(in oklab, var(--brand) 25%, transparent); }
.timeline .item { background: color-mix(in oklab, var(--panel) 90%, transparent); border: 1px solid color-mix(in oklab, var(--text) 8%, transparent); border-radius: 12px; padding: 14px; }
.timeline .item-header { display: grid; grid-template-columns: auto 1fr auto; gap: 12px; align-items: center; }
.timeline .logo { width: 40px; height: 40px; border-radius: 10px; background: color-mix(in oklab, var(--panel) 80%, transparent); object-fit: cover; box-shadow: 0 0 0 1px color-mix(in oklab, var(--text) 8%, transparent) inset; }
.timeline .title { display: flex; flex-direction: column; gap: 2px; }
.timeline .title .role { font-weight: 700; }
.timeline .title .company { color: var(--muted); }
.timeline .meta { text-align: end; color: var(--muted); font-size: .95rem; }
.timeline .skills { margin: 10px 0 0; display: flex; flex-wrap: wrap; gap: 6px; }
.timeline .skills .pill { margin: 0; }

/* Modern experience bullets */
.experience-points { list-style: none; margin: 10px 0 0; padding: 0; display: grid; gap: 8px; }
.experience-points li { display: flex; align-items: flex-start; gap: 10px; }
.experience-points li::before { content: ""; flex: 0 0 8px; width: 8px; height: 8px; border-radius: 2px; margin-top: 8px; background: linear-gradient(135deg, var(--brand), var(--accent)); box-shadow: 0 0 0 2px color-mix(in oklab, var(--brand) 25%, transparent); }

.contact { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.contact a { text-decoration: none; color: var(--text); background: color-mix(in oklab, var(--panel) 90%, transparent); border: 1px solid color-mix(in oklab, var(--text) 8%, transparent); padding: 12px; border-radius: 12px; }

.actions .btn { background: linear-gradient(135deg, var(--brand), var(--brand-strong)); color: white; border: 0; padding: 10px 14px; border-radius: 12px; cursor: pointer; font-weight: 700; text-decoration: none; display: inline-flex; align-items: center; justify-content: center; }
.actions .btn.secondary { background: color-mix(in oklab, var(--panel) 88%, transparent); color: var(--text); border: 1px solid color-mix(in oklab, var(--text) 10%, transparent); }

.site-footer { 
  padding: 40px 0; 
  border-top: 1px solid color-mix(in oklab, var(--text) 8%, transparent); 
  color: var(--muted); 
  font-size: .95rem; 
  text-align: center; 
  background: linear-gradient(180deg, transparent, color-mix(in oklab, var(--panel) 30%, transparent));
}

/* Footer social links styling */
.footer-social {
  margin-bottom: 24px;
}

.footer-social-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  text-decoration: none;
  padding: 14px;
  border: 1px solid color-mix(in oklab, var(--text) 20%, transparent);
  border-radius: 50%;
  width: 48px;
  height: 48px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  background: color-mix(in oklab, var(--panel) 85%, transparent);
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.footer-social-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, color-mix(in oklab, var(--brand) 15%, transparent), transparent);
  transition: left 0.6s ease;
}

.footer-social-link:hover {
  color: var(--brand);
  border-color: var(--brand);
  background: color-mix(in oklab, var(--brand) 8%, transparent);
  transform: translateY(-3px) scale(1.1);
  box-shadow: 0 8px 25px rgba(107, 208, 255, 0.25), 0 0 0 1px rgba(107, 208, 255, 0.1);
}

.footer-social-link:hover::before {
  left: 100%;
}

.footer-social-link:focus {
  outline: none;
  box-shadow: var(--ring);
}

/* Social icons are now handled by JavaScript SVG */

.muted { color: var(--muted); }

.fade-in { animation: fadeIn .7s ease both; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }

@media (max-width: 960px) {
  .grid, .cards { grid-template-columns: repeat(2, 1fr); }
  .hero { grid-template-columns: 1fr; text-align: center; }
  .hero .actions, .hero .social { justify-content: center; }
  .hero .actions { flex-wrap: wrap; }
  .timeline .item-header { grid-template-columns: auto 1fr; }
  .timeline .meta { grid-column: 1 / -1; text-align: start; }
}

@media (max-width: 890px) {
  .grid, .cards { grid-template-columns: 1fr; }
  .highlights { grid-template-columns: 1fr; }
  .contact { grid-template-columns: 1fr; }
  .site-nav { display: none; }
  .menu-toggle { display: inline-flex; background: transparent; border: 1px solid color-mix(in oklab, var(--text) 25%, transparent); padding: 6px 10px; border-radius: 10px; color: var(--text); }
  .site-header.open .site-nav { display: flex; position: absolute; inset-inline: 4%; top: 56px; background: var(--panel); border: 1px solid color-mix(in oklab, var(--text) 8%, transparent); border-radius: 12px; padding: 10px; flex-direction: column; }
  #education-list .edu-card { grid-template-columns: 6px 28px 1fr; }
  #education-list .edu-card .edu-meta { grid-column: 3; margin-top: 6px; }
  .footer-social-links { flex-direction: row; justify-content: center; gap: 20px; }
  .footer-social-link { width: 52px; height: 52px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}