/* ==========================================================================
   Cyber / Tech Theme — Emerald / Mint
   Theme tokens are CSS variables; Tailwind maps them via @theme inline
   (bg-bg, text-fg, text-muted, border-line, text-accent ...)
   ========================================================================== */

:root {
  --font-body: 'Inter', 'IBM Plex Sans Thai', system-ui, sans-serif;
  --font-display: 'Space Grotesk', 'IBM Plex Sans Thai', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'IBM Plex Sans Thai', ui-monospace, monospace;
  --bg: #eef5f2;
  --bg-2: #e3efea;
  --surface: rgba(255, 255, 255, 0.78);
  --surface-2: #ffffff;
  --surface-3: rgba(5, 150, 105, 0.06);
  --fg: #0a1f1a;
  --muted: #4d655e;
  --line: rgba(5, 150, 105, 0.22);
  --line-strong: rgba(5, 150, 105, 0.5);
  --accent: #059669;
  --accent-2: #0d9488;
  --accent-soft: rgba(16, 185, 129, 0.12);
  --on-accent: #ffffff;
  --glow: rgba(16, 185, 129, 0.22);
  --grid: rgba(5, 150, 105, 0.075);
  --danger: #e11d48;
  --shadow: 0 10px 30px -12px rgba(6, 78, 59, 0.25);
  color-scheme: light;
}

.dark {
  --bg: #03080a;
  --bg-2: #061210;
  --surface: rgba(7, 20, 18, 0.72);
  --surface-2: #081714;
  --surface-3: rgba(52, 211, 153, 0.05);
  --fg: #e3fff5;
  --muted: #8db3a7;
  --line: rgba(52, 211, 153, 0.18);
  --line-strong: rgba(52, 211, 153, 0.55);
  --accent: #34d399;
  --accent-2: #2dd4bf;
  --accent-soft: rgba(52, 211, 153, 0.1);
  --on-accent: #022c22;
  --glow: rgba(52, 211, 153, 0.45);
  --grid: rgba(52, 211, 153, 0.055);
  --danger: #fb7185;
  --shadow: 0 0 0 1px rgba(52, 211, 153, 0.04), 0 18px 40px -18px rgba(0, 0, 0, 0.8);
  color-scheme: dark;
}

* { -webkit-tap-highlight-color: transparent; }
html { scroll-behavior: smooth; scroll-padding-top: 1.5rem; }
@media (max-width: 1023px) { html { scroll-padding-top: 5rem; } }

body {
  background: var(--bg);
  color: var(--fg);
  transition: background-color .4s ease, color .4s ease;
  min-height: 100vh;
}

::selection { background: var(--accent); color: var(--on-accent); }

/* Scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--line-strong); border-radius: 999px; border: 3px solid var(--bg); }

/* ---------- Background layers ---------- */
.bg-grid {
  position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse at 60% 30%, #000 30%, transparent 85%);
}
.bg-glow {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(600px circle at 85% 8%, var(--glow), transparent 60%),
    radial-gradient(500px circle at 25% 95%, rgba(45, 212, 191, .12), transparent 60%);
  opacity: .55;
}
.dark .bg-glow { opacity: .4; }
.dark body::after {
  /* subtle CRT scanlines */
  content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 100;
  background: repeating-linear-gradient(0deg, rgba(255,255,255,.012) 0 1px, transparent 1px 3px);
}

.skip-link {
  position: absolute; left: -999px; top: 1rem; z-index: 200;
  background: var(--accent); color: var(--on-accent); padding: .5rem 1rem; border-radius: .5rem;
}
.skip-link:focus { left: 1rem; }

/* ---------- Sidebar ---------- */
.sidebar, .bar {
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-right: 1px solid var(--line);
}
.bar { border-right: 0; border-bottom: 1px solid var(--line); }
.sidebar.open { transform: translateX(0); box-shadow: 20px 0 60px -20px rgba(0,0,0,.6); }

.logo-hex {
  width: 46px; height: 46px; display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 700; letter-spacing: .05em;
  color: var(--on-accent);
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  clip-path: polygon(25% 3%, 75% 3%, 100% 50%, 75% 97%, 25% 97%, 0 50%);
  box-shadow: 0 0 24px var(--glow);
  transition: transform .4s ease;
}
a:hover .logo-hex { transform: rotate(60deg); }

.status-pill {
  display: inline-flex; align-items: center; gap: .55rem;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .04em;
  color: var(--accent); padding: .35rem .75rem; border-radius: 999px;
  border: 1px solid var(--line); background: var(--accent-soft);
}
.status-pill .dot, .pulse-dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--accent);
  box-shadow: 0 0 0 0 var(--glow); animation: pulse 2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 var(--glow); }
  70% { box-shadow: 0 0 0 8px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

.nav-link {
  position: relative; display: flex; align-items: center; gap: .75rem;
  padding: .7rem .85rem; border-radius: .7rem; color: var(--muted);
  border: 1px solid transparent; transition: all .25s ease;
}
.nav-link:hover { color: var(--fg); background: var(--surface-3); transform: translateX(3px); }
.nav-link .nav-num { font-family: var(--font-mono); font-size: 11px; opacity: .6; width: 1.3rem; }
.nav-link .nav-ico { width: 1.4rem; text-align: center; filter: grayscale(.6); transition: filter .25s; }
.nav-link.active {
  color: var(--accent); background: var(--accent-soft); border-color: var(--line);
  box-shadow: inset 3px 0 0 var(--accent), 0 0 20px -8px var(--glow);
}
.nav-link.active .nav-ico, .nav-link:hover .nav-ico { filter: none; }
.nav-link.active .nav-num { opacity: 1; }

/* ---------- Top-right utilities ---------- */
.util-group {
  display: flex; align-items: center; gap: .35rem; padding: .3rem;
  border: 1px solid var(--line); border-radius: 999px;
  background: color-mix(in srgb, var(--bg) 75%, transparent);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
}
.lang-btn {
  font-family: var(--font-mono); font-size: 12px; font-weight: 600;
  padding: .35rem .7rem; border-radius: 999px; color: var(--muted); transition: all .2s;
}
.lang-btn:hover { color: var(--fg); }
.lang-btn.active { background: var(--accent); color: var(--on-accent); box-shadow: 0 0 14px var(--glow); }
.icon-btn {
  width: 36px; height: 36px; display: grid; place-items: center; border-radius: 999px;
  color: var(--fg); transition: all .2s; font-size: 16px;
}
.icon-btn:hover { background: var(--accent-soft); color: var(--accent); transform: rotate(-8deg) scale(1.06); }
.icon-btn.is-on { color: var(--accent); background: var(--accent-soft); }

/* ---------- Generic UI ---------- */
.container-x { width: 100%; max-width: 1180px; margin-inline: auto; padding-inline: 1.25rem; }
@media (min-width: 640px) { .container-x { padding-inline: 2rem; } }
@media (min-width: 1280px) { .container-x { padding-inline: 3rem; } }

.section { position: relative; padding-block: 5.5rem; }
.eyebrow { font-family: var(--font-mono); font-size: 12px; letter-spacing: .14em; color: var(--accent); text-transform: uppercase; }

.section-head { display: flex; align-items: flex-end; gap: 1.1rem; margin-bottom: 2.75rem; }
.section-num {
  font-family: var(--font-display); font-weight: 700; font-size: 3.4rem; line-height: .85;
  color: transparent; -webkit-text-stroke: 1px var(--line-strong);
}
.section-title { font-family: var(--font-display); font-weight: 700; font-size: clamp(1.8rem, 3.4vw, 2.5rem); line-height: 1.15; }
.section-title::after {
  content: ""; display: block; height: 3px; width: 64px; margin-top: .6rem; border-radius: 99px;
  background: linear-gradient(90deg, var(--accent), transparent);
}

.neon-text { color: var(--fg); }
.dark .neon-text { text-shadow: 0 0 18px rgba(52, 211, 153, .35), 0 0 42px rgba(52, 211, 153, .15); }
.text-gradient {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

.panel {
  position: relative; background: var(--surface); border: 1px solid var(--line); border-radius: 1.1rem;
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow); transition: border-color .3s, transform .3s, box-shadow .3s;
}
.panel.hoverable:hover {
  border-color: var(--line-strong); transform: translateY(-4px);
  box-shadow: var(--shadow), 0 0 32px -10px var(--glow);
}
/* cyber corner brackets */
.panel.corners::before, .panel.corners::after {
  content: ""; position: absolute; width: 16px; height: 16px; pointer-events: none;
  border-color: var(--accent); border-style: solid; opacity: .7; transition: all .3s;
}
.panel.corners::before { top: -1px; left: -1px; border-width: 2px 0 0 2px; border-top-left-radius: 1.1rem; }
.panel.corners::after { bottom: -1px; right: -1px; border-width: 0 2px 2px 0; border-bottom-right-radius: 1.1rem; }
.panel.corners:hover::before, .panel.corners:hover::after { width: 28px; height: 28px; opacity: 1; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  font-weight: 600; font-size: .9rem; padding: .7rem 1.25rem; border-radius: .75rem;
  border: 1px solid transparent; transition: all .22s ease; white-space: nowrap; cursor: pointer;
}
.btn:active { transform: scale(.97); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn-primary {
  color: var(--on-accent); background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 8px 24px -10px var(--glow);
}
.btn-primary:hover:not(:disabled) { box-shadow: 0 0 0 3px var(--accent-soft), 0 10px 30px -8px var(--glow); transform: translateY(-2px); }
.btn-ghost { color: var(--fg); border-color: var(--line); background: var(--surface-3); }
.btn-ghost:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }
.btn-danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 35%, transparent); background: color-mix(in srgb, var(--danger) 8%, transparent); }
.btn-danger:hover:not(:disabled) { background: var(--danger); color: #fff; }
.btn-sm { padding: .45rem .75rem; font-size: .8rem; border-radius: .6rem; }

.chip {
  display: inline-flex; align-items: center; gap: .4rem;
  font-family: var(--font-mono); font-size: 12px; padding: .3rem .65rem; border-radius: .5rem;
  color: var(--accent); background: var(--accent-soft); border: 1px solid var(--line);
  transition: all .2s;
}
.chip:hover { border-color: var(--accent); box-shadow: 0 0 14px -4px var(--glow); }

.filter-btn {
  font-family: var(--font-mono); font-size: 13px; padding: .5rem 1rem; border-radius: .7rem;
  color: var(--muted); border: 1px solid var(--line); background: var(--surface); transition: all .2s;
}
.filter-btn:hover { color: var(--fg); border-color: var(--line-strong); }
.filter-btn.active { color: var(--on-accent); background: var(--accent); border-color: var(--accent); box-shadow: 0 0 18px -4px var(--glow); }
.filter-btn .count { opacity: .7; margin-left: .3rem; font-size: 11px; }

/* ---------- Hero / Avatar ---------- */
.caret { display: inline-block; width: .6ch; height: 1.15em; vertical-align: -.2em; margin-left: 2px; background: var(--accent); animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

.avatar-wrap { position: relative; width: min(330px, 74vw); aspect-ratio: 1; }
.avatar-ring {
  position: absolute; inset: -10px; border-radius: 50%;
  background: conic-gradient(from 0deg, var(--accent), transparent 30%, var(--accent-2) 55%, transparent 80%, var(--accent));
  animation: spin 7s linear infinite; filter: blur(.5px);
}
.avatar-ring::after { content: ""; position: absolute; inset: 4px; border-radius: 50%; background: var(--bg); }
.avatar-img {
  position: relative; width: 100%; height: 100%; object-fit: cover; border-radius: 50%;
  border: 1px solid var(--line-strong); box-shadow: 0 0 60px -10px var(--glow);
}
.avatar-orbit {
  position: absolute; inset: -34px; border-radius: 50%; border: 1px dashed var(--line);
  animation: spin 30s linear infinite reverse;
}
.avatar-orbit::before {
  content: ""; position: absolute; top: 50%; left: -5px; width: 10px; height: 10px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 14px var(--accent);
}
.avatar-badge {
  position: absolute; font-family: var(--font-mono); font-size: 11px; padding: .4rem .7rem;
  border-radius: .6rem; background: var(--surface-2); border: 1px solid var(--line-strong);
  color: var(--accent); box-shadow: var(--shadow); animation: float 5s ease-in-out infinite; white-space: nowrap;
}
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes float { 50% { transform: translateY(-8px); } }

.info-card { display: flex; align-items: center; gap: .85rem; padding: .9rem 1rem; min-width: 0; }
.info-card .ico {
  flex: none; width: 40px; height: 40px; display: grid; place-items: center; border-radius: .7rem;
  background: var(--accent-soft); border: 1px solid var(--line); font-size: 18px;
}

/* ---------- GPAX meter ---------- */
.meter { height: 8px; border-radius: 99px; background: var(--surface-3); border: 1px solid var(--line); overflow: hidden; }
.meter > span {
  display: block; height: 100%; width: 0; border-radius: inherit;
  background: linear-gradient(90deg, var(--accent-2), var(--accent)); box-shadow: 0 0 12px var(--glow);
  transition: width 1.6s cubic-bezier(.2,.8,.2,1);
}

/* ---------- Timeline ---------- */
.timeline { position: relative; padding-left: 2rem; }
.timeline::before {
  content: ""; position: absolute; left: 7px; top: .5rem; bottom: .5rem; width: 2px;
  background: linear-gradient(var(--accent), var(--line) 70%, transparent);
}
.timeline-item { position: relative; padding-bottom: 2rem; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-node {
  position: absolute; left: calc(-2rem + 1px); top: 1.5rem; width: 14px; height: 14px; border-radius: 50%;
  background: var(--bg); border: 2px solid var(--accent); box-shadow: 0 0 0 4px var(--accent-soft), 0 0 16px var(--glow);
}
.timeline-item.upcoming .timeline-node { border-style: dashed; background: transparent; animation: pulse 2s infinite; }

/* ---------- Project cards ---------- */
.project-media { position: relative; aspect-ratio: 16 / 9; overflow: hidden; border-radius: 1.1rem 1.1rem 0 0; background: var(--surface-3); }
.project-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease, opacity .4s; }
.panel:hover .project-media img { transform: scale(1.06); }
.project-media .media-fallback {
  position: absolute; inset: 0; display: grid; place-items: center; font-size: 2.5rem;
  background: radial-gradient(circle at 30% 30%, var(--accent-soft), transparent 70%),
              repeating-linear-gradient(45deg, var(--surface-3) 0 10px, transparent 10px 20px);
}
.project-media .media-overlay {
  position: absolute; inset: 0; display: flex; align-items: flex-end; justify-content: flex-end; padding: .75rem;
  background: linear-gradient(to top, rgba(0,0,0,.55), transparent 55%); opacity: 0; transition: opacity .3s;
}
.panel:hover .media-overlay, .media-overlay:focus-within { opacity: 1; }
@media (hover: none) { .project-media .media-overlay { opacity: 1; } }
.cat-badge {
  position: absolute; top: .75rem; left: .75rem; font-family: var(--font-mono); font-size: 11px;
  padding: .3rem .6rem; border-radius: .5rem; color: var(--on-accent); background: var(--accent);
  box-shadow: 0 0 14px var(--glow);
}

.pdf-thumb {
  flex: none; width: 56px; height: 68px; border-radius: .6rem; display: grid; place-items: center; font-size: 1.6rem;
  background: var(--accent-soft); border: 1px solid var(--line); position: relative;
}
.pdf-thumb.has-pdf::after {
  content: "PDF"; position: absolute; bottom: -6px; font-family: var(--font-mono); font-size: 9px; font-weight: 700;
  padding: 1px 5px; border-radius: 4px; background: var(--accent); color: var(--on-accent);
}

.empty-state {
  grid-column: 1 / -1; text-align: center; padding: 3rem 1rem; border: 1px dashed var(--line-strong);
  border-radius: 1.1rem; color: var(--muted); background: var(--surface-3);
}
.skeleton { border-radius: 1.1rem; min-height: 260px; background: linear-gradient(100deg, var(--surface-3) 30%, var(--accent-soft) 50%, var(--surface-3) 70%); background-size: 300% 100%; animation: shimmer 1.4s infinite; border: 1px solid var(--line); }
@keyframes shimmer { to { background-position: -150% 0; } }

/* ---------- Modals (native <dialog>) ---------- */
dialog.modal {
  width: min(640px, calc(100vw - 2rem)); max-height: calc(100dvh - 2rem); padding: 0; margin: auto;
  color: var(--fg); background: var(--surface-2); border: 1px solid var(--line-strong); border-radius: 1.2rem;
  box-shadow: 0 30px 80px -20px rgba(0,0,0,.6), 0 0 50px -20px var(--glow);
}
dialog.modal.modal-sm { width: min(420px, calc(100vw - 2rem)); }
dialog.modal[open] { animation: modal-in .28s cubic-bezier(.2,.9,.3,1.2); }
dialog.modal::backdrop { background: rgba(2, 8, 7, .65); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
@keyframes modal-in { from { opacity: 0; transform: translateY(16px) scale(.97); } }
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 1.1rem 1.4rem; border-bottom: 1px solid var(--line); }
.modal-body { padding: 1.4rem; overflow-y: auto; max-height: calc(100dvh - 11rem); }
.modal-foot { display: flex; justify-content: flex-end; gap: .6rem; padding: 1rem 1.4rem; border-top: 1px solid var(--line); }

.field-label { display: block; font-size: .8rem; font-weight: 600; margin-bottom: .4rem; color: var(--muted); }
.field-label .req { color: var(--danger); }
.input {
  width: 100%; padding: .65rem .85rem; border-radius: .65rem; font-size: .92rem;
  color: var(--fg); background: var(--bg); border: 1px solid var(--line); transition: border-color .2s, box-shadow .2s;
}
.input::placeholder { color: color-mix(in srgb, var(--muted) 70%, transparent); }
.input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
textarea.input { resize: vertical; min-height: 84px; }
select.input { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--accent) 50%), linear-gradient(135deg, var(--accent) 50%, transparent 50%); background-position: calc(100% - 18px) 55%, calc(100% - 13px) 55%; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 2.2rem; }

.dropzone {
  display: flex; align-items: center; gap: 1rem; padding: .9rem; border-radius: .8rem; cursor: pointer;
  border: 1px dashed var(--line-strong); background: var(--surface-3); transition: all .2s;
}
.dropzone:hover, .dropzone.drag { border-color: var(--accent); background: var(--accent-soft); }
.dropzone img { width: 96px; height: 54px; object-fit: cover; border-radius: .5rem; border: 1px solid var(--line); }

/* ---------- Toasts ---------- */
.toast-root { position: fixed; z-index: 300; right: 1rem; bottom: 1rem; display: flex; flex-direction: column; gap: .6rem; width: min(380px, calc(100vw - 2rem)); pointer-events: none; }
.toast {
  pointer-events: auto; display: flex; align-items: flex-start; gap: .75rem; padding: .85rem 1rem;
  border-radius: .9rem; background: var(--surface-2); border: 1px solid var(--line-strong); color: var(--fg);
  box-shadow: 0 16px 40px -14px rgba(0,0,0,.55), 0 0 30px -14px var(--glow);
  position: relative; overflow: hidden; animation: toast-in .35s cubic-bezier(.2,.9,.3,1.2);
}
.toast.leaving { animation: toast-out .3s ease forwards; }
.toast .t-ico { flex: none; width: 28px; height: 28px; display: grid; place-items: center; border-radius: .55rem; background: var(--accent-soft); }
.toast.error { border-color: color-mix(in srgb, var(--danger) 55%, transparent); }
.toast.error .t-ico { background: color-mix(in srgb, var(--danger) 15%, transparent); }
.toast .t-bar { position: absolute; left: 0; bottom: 0; height: 2px; background: var(--accent); animation: toast-bar linear forwards; }
.toast.error .t-bar { background: var(--danger); }
@keyframes toast-in { from { opacity: 0; transform: translateX(30px) scale(.96); } }
@keyframes toast-out { to { opacity: 0; transform: translateX(30px); } }
@keyframes toast-bar { from { width: 100%; } to { width: 0; } }

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s ease, transform .8s cubic-bezier(.2,.8,.2,1); }
.reveal.is-visible { opacity: 1; transform: none; }
.fade-up { animation: fade-up .55s cubic-bezier(.2,.8,.2,1) both; }
@keyframes fade-up { from { opacity: 0; transform: translateY(18px); } }

/* ---------- Admin-only visibility ---------- */
body:not(.is-admin) .admin-only {
  display: none !important;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}