/* ============ RESET & BASE ============ */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg: #070a16;
  --bg-2: #0d1226;
  --glass: rgba(255, 255, 255, 0.06);
  --glass-brd: rgba(255, 255, 255, 0.12);
  --text: #eef1ff;
  --muted: #8b93b8;
  --primary: #6c5ce7;
  --primary-2: #8f7bff;
  --cyan: #00d9ff;
  --pink: #ff6b9d;
  --radius: 20px;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.55);
}

[data-theme="light"] {
  --bg: #f4f6ff;
  --bg-2: #ffffff;
  --glass: rgba(255, 255, 255, 0.75);
  --glass-brd: rgba(20, 20, 60, 0.08);
  --text: #12142b;
  --muted: #6b7291;
  --shadow: 0 20px 50px rgba(80, 90, 180, 0.15);
}

html, body { height: 100%; }

body {
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  transition: background .4s ease, color .4s ease;
  position: relative;
}

/* ============ BACKGROUND ORBS ============ */
.bg-orbs {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.55;
  animation: float 18s ease-in-out infinite;
}
.orb-1 { width: 520px; height: 520px; background: #6c5ce7; top: -160px; left: -120px; }
.orb-2 { width: 480px; height: 480px; background: #00d9ff; top: 30%; right: -140px; animation-delay: -6s; }
.orb-3 { width: 420px; height: 420px; background: #ff6b9d; bottom: -180px; left: 25%; animation-delay: -12s; }

@keyframes float {
  0%,100% { transform: translate(0,0) scale(1); }
  50%     { transform: translate(40px,-40px) scale(1.1); }
}

/* ============ HEADER ============ */
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 40px;
  max-width: 1300px;
  margin: 0 auto;
}
.logo { display: flex; align-items: center; gap: 12px; }
.logo-mark {
  width: 42px; height: 42px;
  display: grid; place-items: center;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--cyan));
  color: #fff; font-weight: 800; letter-spacing: .5px;
  box-shadow: 0 8px 24px rgba(108,92,231,0.5);
}
.logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.logo-name { font-weight: 700; font-size: 17px; }
.logo-sub  { font-size: 11px; color: var(--muted); letter-spacing: .12em; text-transform: uppercase; }

.theme-toggle {
  width: 44px; height: 44px;
  border-radius: 12px;
  border: 1px solid var(--glass-brd);
  background: var(--glass);
  backdrop-filter: blur(14px);
  cursor: pointer;
  font-size: 18px;
  color: var(--text);
  transition: transform .2s ease, background .3s ease;
}
.theme-toggle:hover { transform: translateY(-2px) scale(1.05); }

/* ============ HERO ============ */
.hero {
  text-align: center;
  padding: 40px 24px 20px;
  max-width: 900px;
  margin: 0 auto;
}
.hero-title {
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.gradient-text {
  background: linear-gradient(90deg, var(--primary), var(--cyan) 55%, var(--pink));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-subtitle {
  margin-top: 16px;
  font-size: clamp(0.95rem, 1.6vw, 1.15rem);
  color: var(--muted);
  max-width: 720px;
  margin-inline: auto;
  line-height: 1.6;
}
.hero-subtitle strong { color: var(--text); }

.hero-badges {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}
.badge {
  font-size: 12.5px;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--glass-brd);
  background: var(--glass);
  backdrop-filter: blur(10px);
  color: var(--text);
}

/* ============ APP SHELL ============ */
.app-shell {
  max-width: 1300px;
  margin: 20px auto 60px;
  padding: 0 24px;
  display: flex;
  flex-direction: column;
  gap: 26px;
}

/* ============ GLASS ============ */
.glass {
  background: var(--glass);
  border: 1px solid var(--glass-brd);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* ============ DROP ZONE ============ */
.drop-zone {
  border-radius: var(--radius);
  padding: 3px;
  background: linear-gradient(135deg, var(--primary), var(--cyan), var(--pink));
  background-size: 200% 200%;
  animation: gradientShift 8s ease infinite;
  cursor: pointer;
  transition: transform .25s ease;
}
@keyframes gradientShift {
  0%,100% { background-position: 0% 50%; }
  50%     { background-position: 100% 50%; }
}
.drop-zone:hover { transform: translateY(-3px); }
.drop-zone.dragover { transform: scale(1.01); }

.drop-inner {
  background: var(--bg-2);
  border-radius: calc(var(--radius) - 3px);
  padding: 56px 24px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  transition: background .3s ease;
}
.drop-icon {
  width: 68px; height: 68px;
  display: grid; place-items: center;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(108,92,231,.25), rgba(0,217,255,.25));
  color: var(--primary-2);
  animation: pulse 2.6s ease-in-out infinite;
}
.drop-icon svg { width: 32px; height: 32px; }
@keyframes pulse {
  0%,100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(108,92,231,.4); }
  50%     { transform: scale(1.05); box-shadow: 0 0 0 16px rgba(108,92,231,0); }
}
.drop-title { font-size: 1.35rem; font-weight: 700; }
.drop-sub   { color: var(--muted); font-size: .92rem; }

/* ============ BUTTONS ============ */
.btn {
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-weight: 600;
  font-size: 14px;
  padding: 12px 22px;
  border-radius: 12px;
  transition: transform .18s ease, box-shadow .25s ease, background .25s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #fff;
  box-shadow: 0 10px 26px rgba(108,92,231,.45);
}
.btn-primary:hover { box-shadow: 0 14px 34px rgba(108,92,231,.6); }

.btn-ghost {
  background: var(--glass);
  border: 1px solid var(--glass-brd);
  color: var(--text);
  backdrop-filter: blur(10px);
}
.btn-ghost:hover { background: rgba(255,255,255,.12); }

.btn-sm { padding: 9px 16px; font-size: 13px; }

/* ============ WORKSPACE ============ */
.workspace {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 22px;
  align-items: start;
}
@media (max-width: 900px) {
  .workspace { grid-template-columns: 1fr; }
}

/* Controls */
.controls { padding: 22px; display: flex; flex-direction: column; gap: 18px; }
.panel-title { font-size: 15px; font-weight: 700; letter-spacing: .02em; }

.control-group { display: flex; flex-direction: column; gap: 8px; }
.control-group label {
  font-size: 12.5px;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.val {
  color: var(--text);
  font-weight: 600;
  background: var(--glass);
  border: 1px solid var(--glass-brd);
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 11.5px;
}
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--primary), var(--cyan));
  outline: none;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--primary);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(108,92,231,.55);
  transition: transform .15s ease;
}
input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.15); }
input[type="range"]::-moz-range-thumb {
  width: 18px; height: 18px;
  border-radius: 50%; background: #fff;
  border: 3px solid var(--primary); cursor: pointer;
}

.switch-row {
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--text);
}
.switch-row input[type="checkbox"] {
  width: 18px; height: 18px; accent-color: var(--primary); cursor: pointer;
}

.presets { border-top: 1px dashed var(--glass-brd); padding-top: 14px; }
.preset-label { font-size: 12px; color: var(--muted); margin-bottom: 10px; letter-spacing: .06em; text-transform: uppercase; }
.preset-buttons { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  background: var(--glass);
  border: 1px solid var(--glass-brd);
  color: var(--text);
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 12.5px;
  cursor: pointer;
  transition: all .2s ease;
  font-family: inherit;
}
.chip:hover { background: linear-gradient(135deg, var(--primary), var(--cyan)); color: #fff; border-color: transparent; }

/* Preview */
.preview-area { display: flex; flex-direction: column; gap: 16px; }
.preview {
  min-height: 380px;
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.preview-empty { color: var(--muted); font-size: 14px; text-align: center; }

.preview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  width: 100%;
}
@media (max-width: 640px) {
  .preview-grid { grid-template-columns: 1fr; }
}
.preview-pane { display: flex; flex-direction: column; gap: 8px; }
.pane-label {
  font-size: 11.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
}
.pane-body {
  background:
    repeating-conic-gradient(rgba(255,255,255,.04) 0% 25%, transparent 0% 50%) 50% / 20px 20px;
  border: 1px solid var(--glass-brd);
  border-radius: 14px;
  min-height: 240px;
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: 12px;
}
.pane-body img, .pane-body svg { max-width: 100%; max-height: 320px; height: auto; }

/* Loader */
.loader {
  position: absolute;
  inset: 0;
  background: rgba(10, 15, 30, 0.55);
  backdrop-filter: blur(6px);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  z-index: 5;
}
[data-theme="light"] .loader { background: rgba(255,255,255,0.55); }
.spinner {
  width: 48px; height: 48px;
  border-radius: 50%;
  border: 4px solid rgba(108,92,231,.25);
  border-top-color: var(--primary);
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loader p { font-size: 13.5px; color: var(--text); }

/* Actions */
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

/* ============ QUEUE ============ */
.queue { padding: 20px; }
.queue-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.queue-head .btn { margin-left: auto; }
.queue-head .btn + .btn { margin-left: 0; }

.queue-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 320px;
  overflow-y: auto;
}
.queue-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--glass);
  border: 1px solid var(--glass-brd);
  border-radius: 12px;
  font-size: 13px;
}
.queue-item .qi-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.queue-item .qi-thumb {
  width: 34px; height: 34px; border-radius: 8px; object-fit: cover;
  background: rgba(255,255,255,.06);
}
.status {
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.status.pending  { background: rgba(139,147,184,.2); color: var(--muted); }
.status.tracing  { background: rgba(0,217,255,.18); color: var(--cyan); }
.status.done     { background: rgba(108,92,231,.22); color: var(--primary-2); }
.status.error    { background: rgba(255,107,157,.22); color: var(--pink); }

/* ============ TOAST ============ */
.toast {
  position: fixed;
  left: 50%;
  bottom: 30px;
  transform: translate(-50%, 120%);
  background: linear-gradient(135deg, var(--primary), var(--cyan));
  color: #fff;
  padding: 12px 22px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 12px 40px rgba(108,92,231,.55);
  /*transition: transform .35s cubic-bezier(.2,.9,.3,1.2);*/
  z-index: 999;
}
.toast.show { transform: translate(-50%, 0); }

/* ============ FOOTER ============ */
.site-footer {
  text-align: center;
  padding: 26px 20px 40px;
  color: var(--muted);
  font-size: 13px;
}

.hidden { display: none !important; }