/* ─────────────────────────────────────────────────────────────
   WAN 2.2 · IMAGE TO VIDEO
   Cinematic dark theme — amber/gold on deep obsidian
   ───────────────────────────────────────────────────────────── */

/* Fonts: Cormorant Garamond (display) + DM Mono (ui/code) */

:root {
  --black:    #080808;
  --deep:     #0e0e0e;
  --surface:  #141414;
  --border:   #222222;
  --border-hi:#333333;
  --muted:    #444444;
  --mid:      #888888;
  --light:    #bbbbbb;
  --white:    #f5f0e8;

  --amber:    #d4924a;
  --amber-hi: #e8ab68;
  --amber-lo: #a06530;
  --amber-dim:#2a1a0a;

  --red:      #c0504a;

  --radius:   10px;
  --radius-sm:6px;

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-ui:      'DM Mono', 'Courier New', monospace;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--black);
  color: var(--white);
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 300;
  line-height: 1.6;
  min-height: 100dvh;
  overflow-x: hidden;
}

/* ── Grain overlay ──────────────────────────────────────────── */
.grain {
  position: fixed;
  inset: -50%;
  width: 200%;
  height: 200%;
  pointer-events: none;
  z-index: 9999;
  opacity: .028;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-size: 128px 128px;
  animation: grainAnim 0.4s steps(1) infinite;
}
@keyframes grainAnim {
  0%   { transform: translate(0, 0); }
  25%  { transform: translate(-5%, 3%); }
  50%  { transform: translate(3%, -4%); }
  75%  { transform: translate(-2%, 5%); }
  100% { transform: translate(4%, -2%); }
}

/* ── Background orbs ────────────────────────────────────────── */
.bg-orb {
  position: fixed;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(90px);
  opacity: .12;
  animation: orbDrift 18s ease-in-out infinite alternate;
}
.orb-1 {
  width: 520px; height: 520px;
  background: radial-gradient(circle, #c27a30, transparent 70%);
  top: -120px; left: -140px;
}
.orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, #8a5020, transparent 70%);
  bottom: -80px; right: -100px;
  animation-delay: -9s;
}
@keyframes orbDrift {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(30px, 20px) scale(1.08); }
}

/* ── App shell ──────────────────────────────────────────────── */
.app-wrapper {
  max-width: 600px;
  margin: 0 auto;
  padding: 28px 16px 60px;
  position: relative;
  z-index: 1;
}

/* ── Header ─────────────────────────────────────────────────── */
.app-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 36px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}
.logo-mark {
  width: 42px; height: 42px;
  background: linear-gradient(135deg, var(--amber-lo), var(--amber));
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
  box-shadow: 0 0 24px rgba(212,146,74,.25);
}
.logo-icon { color: var(--black); line-height: 1; }

.header-text { flex: 1; }
.app-title {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: .01em;
  color: var(--white);
}
.app-title em {
  font-style: italic;
  color: var(--amber);
}
.app-subtitle {
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--mid);
  margin-top: 2px;
}
.header-badge {
  font-size: 10px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--amber-lo);
  background: rgba(212,146,74,.07);
  border: 1px solid rgba(212,146,74,.15);
  padding: 4px 10px;
  border-radius: 20px;
  flex-shrink: 0;
}

/* ── Cards ──────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 14px;
  position: relative;
  overflow: hidden;
  transition: border-color .2s;
}
.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(212,146,74,.15), transparent);
}
.card:focus-within {
  border-color: var(--border-hi);
}

/* ── Field labels ───────────────────────────────────────────── */
.field-label {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 12px;
  cursor: default;
}
.label-icon {
  font-size: 9px;
  opacity: .7;
}
.field-hint {
  font-size: 11px;
  color: var(--muted);
  margin-top: 8px;
  line-height: 1.5;
}

/* ── Text inputs ────────────────────────────────────────────── */
.text-input {
  width: 100%;
  background: var(--deep);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--white);
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 300;
  padding: 10px 14px;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
  -webkit-appearance: none;
}
.text-input::placeholder { color: var(--muted); }
.text-input:focus {
  border-color: var(--amber-lo);
  box-shadow: 0 0 0 3px rgba(212,146,74,.08);
}
.text-input.textarea {
  resize: vertical;
  min-height: 100px;
  line-height: 1.6;
}

/* ── Input row ──────────────────────────────────────────────── */
.input-row {
  display: flex;
  gap: 8px;
  align-items: center;
}
.input-row .text-input { flex: 1; }

/* ── Icon buttons ───────────────────────────────────────────── */
.icon-btn {
  flex-shrink: 0;
  width: 38px; height: 38px;
  background: var(--deep);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--mid);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: border-color .2s, color .2s, background .2s;
}
.icon-btn:hover {
  border-color: var(--amber-lo);
  color: var(--amber);
  background: rgba(212,146,74,.06);
}
.icon-btn:active { transform: scale(.95); }

/* ── Toggle groups ──────────────────────────────────────────── */
.toggle-group {
  display: flex;
  background: var(--deep);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 14px;
}
.toggle-group.small { margin-bottom: 0; }

.toggle-btn {
  flex: 1;
  background: none;
  border: none;
  color: var(--mid);
  font-family: var(--font-ui);
  font-size: 12px;
  letter-spacing: .06em;
  padding: 9px 14px;
  cursor: pointer;
  transition: background .2s, color .2s;
  position: relative;
}
.toggle-btn + .toggle-btn::before {
  content: '';
  position: absolute;
  left: 0; top: 20%; bottom: 20%;
  width: 1px;
  background: var(--border);
}
.toggle-btn.active {
  background: rgba(212,146,74,.12);
  color: var(--amber-hi);
}
.toggle-btn:not(.active):hover {
  background: rgba(255,255,255,.03);
  color: var(--light);
}

/* ── Upload area ────────────────────────────────────────────── */
.upload-area {
  border: 1px dashed var(--border-hi);
  border-radius: var(--radius-sm);
  padding: 32px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color .2s, background .2s;
  position: relative;
}
.upload-area:hover, .upload-area.drag-over {
  border-color: var(--amber-lo);
  background: rgba(212,146,74,.04);
}
.upload-area:focus { outline: none; border-color: var(--amber); }

.upload-inner { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.upload-icon { color: var(--muted); margin-bottom: 4px; }
.upload-text { font-size: 13px; color: var(--light); }
.upload-link { color: var(--amber); text-decoration: underline; text-underline-offset: 3px; }
.upload-hint { font-size: 11px; color: var(--muted); }

/* ── Params grid ────────────────────────────────────────────── */
.params-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.param-group { display: flex; flex-direction: column; gap: 8px; }
.param-label {
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--mid);
}
.seed-group { grid-column: 1 / -1; }
.seed-input { font-size: 13px; }

/* ── Select ─────────────────────────────────────────────────── */
.select-wrapper { position: relative; }
.select-input {
  width: 100%;
  background: var(--deep);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--white);
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 300;
  padding: 9px 34px 9px 14px;
  outline: none;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  transition: border-color .2s;
}
.select-input:focus { border-color: var(--amber-lo); }
.select-input option { background: var(--deep); }
.select-arrow {
  position: absolute;
  right: 12px; top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  pointer-events: none;
  font-size: 12px;
}

/* ── Error message ──────────────────────────────────────────── */
.error-msg {
  background: rgba(192,80,74,.1);
  border: 1px solid rgba(192,80,74,.3);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: 12px;
  color: #e07070;
  line-height: 1.6;
  margin-bottom: 14px;
}

/* ── Generate button ────────────────────────────────────────── */
.generate-btn {
  width: 100%;
  padding: 16px 24px;
  background: linear-gradient(135deg, var(--amber-lo), var(--amber));
  border: none;
  border-radius: var(--radius);
  color: var(--black);
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: .12em;
  text-transform: uppercase;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 14px;
  transition: opacity .2s, transform .15s, box-shadow .2s;
  box-shadow: 0 4px 24px rgba(212,146,74,.2);
  position: relative;
  overflow: hidden;
}
.generate-btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,.12), transparent);
  opacity: 0;
  transition: opacity .2s;
}
.generate-btn:hover::after { opacity: 1; }
.generate-btn:hover { box-shadow: 0 6px 32px rgba(212,146,74,.35); }
.generate-btn:active { transform: scale(.98); }
.generate-btn:disabled {
  opacity: .5;
  cursor: not-allowed;
  transform: none;
}
.btn-text { font-size: 13px; }
.btn-icon { font-size: 18px; transition: transform .2s; }
.generate-btn:not(:disabled):hover .btn-icon { transform: translateX(4px); }

/* ── Output card ────────────────────────────────────────────── */
.output-card { animation: fadeSlideUp .4s ease forwards; }
@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Loading state ──────────────────────────────────────────── */
.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 32px 20px;
  gap: 16px;
}

/* Spinner */
.spinner-ring {
  width: 64px; height: 64px;
  position: relative;
}
.spinner-ring::before,
.spinner-ring::after {
  content: '';
  position: absolute;
  border-radius: 50%;
}
.spinner-ring::before {
  inset: 0;
  border: 2px solid rgba(212,146,74,.12);
}
.spinner-ring::after {
  inset: 0;
  border: 2px solid transparent;
  border-top-color: var(--amber);
  animation: spin 1.1s linear infinite;
}
.spinner-inner {
  position: absolute;
  inset: 10px;
  border-radius: 50%;
  border: 1px solid rgba(212,146,74,.2);
  animation: spin 2.4s linear infinite reverse;
}
@keyframes spin { to { transform: rotate(360deg); } }

.loading-label {
  font-size: 13px;
  color: var(--light);
  letter-spacing: .06em;
}
.loading-sublabel {
  font-size: 11px;
  color: var(--muted);
}

/* ── Video result ───────────────────────────────────────────── */
.video-wrapper {
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--deep);
  border: 1px solid var(--border);
}
.video-wrapper video {
  width: 100%;
  display: block;
  max-height: 480px;
}
.video-actions {
  display: flex;
  justify-content: center;
  margin-top: 14px;
}
.download-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  background: transparent;
  border: 1px solid var(--amber-lo);
  border-radius: var(--radius-sm);
  color: var(--amber);
  font-family: var(--font-ui);
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background .2s, border-color .2s, color .2s;
}
.download-btn:hover {
  background: rgba(212,146,74,.1);
  border-color: var(--amber);
  color: var(--amber-hi);
}
.download-btn:active { transform: scale(.97); }

/* ── Footer ─────────────────────────────────────────────────── */
.app-footer {
  text-align: center;
  padding-top: 20px;
  font-size: 11px;
  color: var(--muted);
  border-top: 1px solid var(--border);
  letter-spacing: .06em;
}
.app-footer strong { color: var(--amber-lo); font-weight: 400; }

/* ── Scrollbar ──────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--black); }
::-webkit-scrollbar-thumb { background: var(--border-hi); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 420px) {
  .app-wrapper { padding: 20px 12px 50px; }
  .params-grid { grid-template-columns: 1fr; }
  .seed-group { grid-column: auto; }
  .app-title { font-size: 24px; }
  .header-badge { display: none; }
}