/* ============================================================
   NovaCompute — global custom styles (layered on Tailwind CDN)
   Tailwind handles utilities; this file holds the design system
   pieces that utility classes alone can't express cleanly:
   gradients, glass, glow orbs, scroll-reveal, code tokens.
   ============================================================ */

:root {
  --c-bg: #05070e;
  --c-surface: rgba(13, 18, 32, 0.6);
  --c-line: rgba(255, 255, 255, 0.08);
  /* Native controls (incl. <select> dropdown popups) render dark */
  color-scheme: dark;
}

select option {
  background-color: #0b1120;
  color: #e2e8f0;
}

html { scroll-behavior: smooth; }

body {
  background-color: var(--c-bg);
  text-rendering: optimizeLegibility;
}

::selection { background: rgba(139, 92, 246, 0.35); color: #fff; }

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: #05070e; }
::-webkit-scrollbar-thumb { background: #1d2740; border-radius: 8px; border: 2px solid #05070e; }
::-webkit-scrollbar-thumb:hover { background: #2b3854; }

/* ---------- Gradient text ---------- */
.text-gradient {
  background: linear-gradient(100deg, #c4b5fd 0%, #818cf8 45%, #22d3ee 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- Glass surface ---------- */
.glass {
  background: var(--c-surface);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--c-line);
}
@media (max-width: 640px) {
  .glass { backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
}

/* ---------- Decorative grid backdrop (hero) ---------- */
.bg-grid {
  background-image:
    linear-gradient(rgba(148, 163, 184, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.06) 1px, transparent 1px);
  background-size: 54px 54px;
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 55%, transparent 100%);
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 55%, transparent 100%);
}

/* ---------- Blurred glow orbs ---------- */
.orb {
  position: absolute;
  border-radius: 9999px;
  filter: blur(110px);
  pointer-events: none;
  user-select: none;
}

/* ---------- Gradient border (double-background trick) ---------- */
.gradient-border {
  border: 1px solid transparent;
  background:
    linear-gradient(#0b1120, #0b1120) padding-box,
    linear-gradient(135deg, rgba(139, 92, 246, 0.55), rgba(99, 102, 241, 0.25) 45%, rgba(34, 211, 238, 0.45)) border-box;
}

/* ---------- Buttons ---------- */
.btn-primary {
  background-image: linear-gradient(135deg, #7c3aed 0%, #6366f1 55%, #0891b2 120%);
  transition: transform 0.25s ease, box-shadow 0.25s ease, filter 0.25s ease;
}
.btn-primary:hover {
  transform: translateY(-1px);
  filter: brightness(1.12);
  box-shadow: 0 14px 34px -10px rgba(124, 58, 237, 0.55);
}
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.03);
  transition: transform 0.25s ease, background 0.25s ease, border-color 0.25s ease;
}
.btn-ghost:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.22);
}

/* ---------- Cards ---------- */
.card-hover {
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
}
.card-hover:hover {
  transform: translateY(-4px);
  border-color: rgba(139, 92, 246, 0.38);
  box-shadow: 0 24px 60px -22px rgba(124, 58, 237, 0.35);
}

/* ---------- Scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.45s ease, transform 0.45s ease;
  will-change: opacity, transform;
}
.reveal.is-visible { opacity: 1; transform: none; will-change: auto; }
.reveal-d1 { transition-delay: 0.06s; }
.reveal-d2 { transition-delay: 0.12s; }
.reveal-d3 { transition-delay: 0.18s; }

/* ---------- Header scrolled state ---------- */
#site-header .nav-shell {
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
}
#site-header .nav-shell.is-scrolled {
  background-color: rgba(5, 7, 14, 0.88);
  box-shadow: 0 12px 34px -14px rgba(2, 6, 17, 0.9);
}

/* ---------- Model filter tabs ---------- */
.filter-tab {
  padding: 0.45rem 1rem;
  font-size: 0.8rem;
  font-weight: 500;
  border-radius: 9999px;
  color: #94a3b8;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.02);
  transition: color 0.25s ease, background 0.25s ease, border-color 0.25s ease;
}
.filter-tab:hover { color: #e2e8f0; background: rgba(255, 255, 255, 0.06); }
.filter-tab.is-active {
  color: #fff;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.28), rgba(6, 182, 212, 0.18));
  border-color: rgba(139, 92, 246, 0.45);
}

/* ---------- Code window ---------- */
.code-tab {
  padding: 0.3rem 0.75rem;
  font-size: 0.72rem;
  font-weight: 500;
  border-radius: 9999px;
  color: #8494ad;
  transition: color 0.2s ease, background 0.2s ease;
}
.code-tab:hover { color: #e2e8f0; }
.code-tab.is-active { background: rgba(139, 92, 246, 0.18); color: #c4b5fd; }

.code-pane { margin: 0; }
.tok-cmd  { color: #c4b5fd; }
.tok-kw   { color: #f472b6; }
.tok-url  { color: #67e8f9; }
.tok-key  { color: #7dd3fc; }
.tok-str  { color: #6ee7b7; }
.tok-flag { color: #94a3b8; }
.tok-fn   { color: #fbbf24; }

/* ---------- Live status dot ---------- */
.pulse-dot { position: relative; }
.pulse-dot::after {
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: 9999px;
  border: 1px solid rgba(52, 211, 153, 0.6);
  animation: nova-ping 1.8s cubic-bezier(0, 0, 0.2, 1) infinite;
}
@keyframes nova-ping {
  0% { transform: scale(0.7); opacity: 1; }
  80%, 100% { transform: scale(1.9); opacity: 0; }
}

/* ---------- Slow float for hero badges ---------- */
@keyframes nova-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
.float-slow { animation: nova-float 6s ease-in-out infinite; }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  .float-slow, .pulse-dot::after { animation: none !important; }
}

/* ============================================================
   VFX LAYER — ripple, typing caret, particles, model glow,
   sliders, toasts, chat, dashboard components (v2)
   ============================================================ */

/* ---------- Button ripple ---------- */
.btn-primary, .btn-ghost { position: relative; overflow: hidden; }
.ripple {
  position: absolute;
  border-radius: 9999px;
  pointer-events: none;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.4) 0%, rgba(255, 255, 255, 0.12) 45%, transparent 70%);
  transform: scale(0);
  opacity: 0.8;
  animation: nova-ripple 0.65s ease-out forwards;
}
@keyframes nova-ripple {
  to { transform: scale(2.6); opacity: 0; }
}

/* ---------- Typing carets ---------- */
.type-caret {
  display: inline-block;
  width: 3px;
  height: 0.92em;
  margin-left: 5px;
  background: linear-gradient(180deg, #a78bfa, #22d3ee);
  vertical-align: -0.08em;
  animation: caret-blink 1s step-end infinite;
}
.code-caret {
  display: inline-block;
  width: 8px;
  height: 14px;
  margin-left: 3px;
  background: #a78bfa;
  vertical-align: -2px;
  animation: caret-blink 1s step-end infinite;
}
@keyframes caret-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* ---------- Hero particles canvas ---------- */
.particles-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

/* ---------- Model table rows: glow by provider color ---------- */
tr.model-row { transition: background-color 0.25s ease, box-shadow 0.25s ease; }
tr.model-row:hover {
  background: linear-gradient(90deg, color-mix(in srgb, var(--m) 10%, transparent) 0%, transparent 68%);
  box-shadow:
    inset 3px 0 0 0 var(--m),
    inset 0 1px 0 0 color-mix(in srgb, var(--m) 28%, transparent),
    inset 0 -1px 0 0 color-mix(in srgb, var(--m) 28%, transparent);
}
tr.model-row .model-avatar { transition: transform 0.25s ease, box-shadow 0.25s ease; }
tr.model-row:hover .model-avatar {
  transform: translateY(-2px);
  box-shadow: 0 0 20px -2px var(--m);
}

/* ---------- Range sliders (playground) ---------- */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 9999px;
  background: linear-gradient(90deg, #7c3aed var(--val, 50%), rgba(255, 255, 255, 0.08) var(--val, 50%));
  outline: none;
  cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 9999px;
  background: #fff;
  border: 3px solid #7c3aed;
  box-shadow: 0 0 14px rgba(124, 58, 237, 0.55);
  transition: transform 0.15s ease;
}
input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.15); }

/* ---------- Chat (playground) ---------- */
.msg-enter { animation: msg-in 0.25s ease both; }
@keyframes msg-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}
.typing-dots span {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 9999px;
  background: #8b5cf6;
  margin-right: 4px;
  animation: dot-bounce 1.2s ease-in-out infinite;
}
.typing-dots span:nth-child(2) { animation-delay: 0.15s; }
.typing-dots span:nth-child(3) { animation-delay: 0.3s; }
@keyframes dot-bounce {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.45; }
  30% { transform: translateY(-5px); opacity: 1; }
}

/* ---------- Dashboard sidebar active glow ---------- */
.side-link { transition: background-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease; }
.side-link.is-active {
  background: linear-gradient(90deg, rgba(124, 58, 237, 0.18), rgba(124, 58, 237, 0.04));
  color: #fff;
  box-shadow: inset 2px 0 0 0 #8b5cf6;
}

/* ---------- Toast stack ---------- */
.toast { animation: msg-in 0.25s ease both; }

/* ---------- Modal ---------- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: rgba(2, 6, 17, 0.7);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  animation: msg-in 0.2s ease both;
}

/* ---------- Scrollbar thin (chat, panels) ---------- */
.scroll-thin::-webkit-scrollbar { width: 6px; height: 6px; }
.scroll-thin::-webkit-scrollbar-thumb { background: #1d2740; border: none; }

@media (prefers-reduced-motion: reduce) {
  .ripple, .type-caret, .code-caret, .typing-dots span, .msg-enter, .toast { animation: none !important; }
}