/* ===== GIF-Werkstatt – Stil ===== */
:root {
  --violet: #7c3aed;
  --violet-bright: #a78bfa;
  --pink: #ec4899;
  --pink-soft: #f9a8d4;

  --bg: #150f29;
  --bg-grad-1: #1b1233;
  --bg-grad-2: #0f0a20;
  --surface: #221943;
  --surface-2: #2c2154;
  --surface-3: #372764;
  --border: #3b2c6b;
  --text: #f3efff;
  --text-dim: #b9aee0;
  --text-mute: #8b7fb8;
  --shadow: 0 18px 40px -18px rgba(0, 0, 0, 0.7);
  --ring: 0 0 0 3px rgba(236, 72, 153, 0.55);
  --radius: 18px;
  --radius-sm: 12px;
  --ok: #34d399;
  --err: #fb7185;
}

[data-theme="light"] {
  --bg: #f6f2ff;
  --bg-grad-1: #faf5ff;
  --bg-grad-2: #efe7ff;
  --surface: #ffffff;
  --surface-2: #f4eeff;
  --surface-3: #ece2ff;
  --border: #e0d3fb;
  --text: #1f1640;
  --text-dim: #5b4f86;
  --text-mute: #8a7eb5;
  --shadow: 0 18px 40px -22px rgba(124, 58, 237, 0.4);
  --ok: #059669;
  --err: #e11d48;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(1200px 700px at 80% -10%, rgba(236, 72, 153, 0.18), transparent 60%),
    radial-gradient(1000px 600px at 0% 0%, rgba(124, 58, 237, 0.22), transparent 55%),
    linear-gradient(160deg, var(--bg-grad-1), var(--bg-grad-2));
  background-attachment: fixed;
  line-height: 1.5;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
  overflow-wrap: break-word;
  word-break: break-word;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--pink);
  color: #fff;
  padding: 10px 16px;
  border-radius: 0 0 10px 0;
  z-index: 100;
}
.skip-link:focus { left: 0; }

/* ===== Header ===== */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px clamp(14px, 4vw, 32px);
  flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 12px; min-width: 0; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 52px; height: 52px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
  flex-shrink: 0;
}
.brand-text { min-width: 0; }
.brand-text h1 {
  margin: 0;
  font-size: clamp(1.25rem, 4vw, 1.7rem);
  letter-spacing: -0.02em;
  background: linear-gradient(90deg, var(--violet-bright), var(--pink));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.brand-text p { margin: 2px 0 0; font-size: 0.8rem; color: var(--text-dim); }
.header-actions { display: flex; align-items: center; gap: 8px; }

/* ===== Buttons ===== */
.btn {
  font: inherit;
  font-weight: 600;
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 11px 18px;
  cursor: pointer;
  color: var(--text);
  background: var(--surface-2);
  transition: transform 0.12s ease, box-shadow 0.18s ease, background 0.18s ease, opacity 0.18s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  line-height: 1.1;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:focus-visible { outline: none; box-shadow: var(--ring); }
.btn.primary {
  background: linear-gradient(135deg, var(--violet), var(--pink));
  color: #fff;
  border-color: transparent;
  box-shadow: 0 10px 24px -10px rgba(236, 72, 153, 0.6);
}
.btn.primary:hover { box-shadow: 0 14px 30px -10px rgba(236, 72, 153, 0.7); }
.btn.ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text-dim);
}
.btn.ghost:hover { color: var(--text); border-color: var(--violet-bright); }
.btn.icon-btn { padding: 10px 12px; font-size: 1.25rem; background: var(--surface); border: 1px solid var(--border); }
.btn[disabled] { opacity: 0.55; cursor: not-allowed; transform: none; }
.btn.full, .field.full .btn { width: 100%; }

/* ===== Layout ===== */
.layout {
  max-width: 980px;
  margin: 0 auto;
  padding: 8px clamp(14px, 4vw, 32px) 40px;
  display: grid;
  gap: 18px;
  grid-template-columns: 1fr;
}
@media (min-width: 760px) {
  .layout { grid-template-columns: 1fr 1fr; align-items: start; }
  .result-card { grid-column: 1 / -1; }
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(16px, 3vw, 22px);
  box-shadow: var(--shadow);
}
.card-title {
  margin: 0 0 12px;
  font-size: 1.05rem;
  display: flex;
  align-items: center;
  gap: 10px;
}
.step-no {
  display: grid;
  place-items: center;
  width: 28px; height: 28px;
  border-radius: 9px;
  font-size: 0.85rem;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(135deg, var(--violet), var(--pink));
  flex-shrink: 0;
}
.hint { color: var(--text-mute); font-size: 0.85rem; margin: 6px 0 0; }

/* ===== Dropzone ===== */
.dropzone {
  position: relative;
  border: 2px dashed var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  padding: 28px 16px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.18s ease, background 0.18s ease, transform 0.12s ease;
}
.dropzone:hover, .dropzone:focus-visible { border-color: var(--pink); background: var(--surface-3); outline: none; }
.dropzone.dragover { border-color: var(--pink); background: var(--surface-3); transform: scale(1.01); }
.dz-icon {
  display: inline-grid;
  place-items: center;
  width: 52px; height: 52px;
  border-radius: 50%;
  font-size: 1.7rem;
  color: #fff;
  background: linear-gradient(135deg, var(--violet), var(--pink));
  margin-bottom: 10px;
}
.dz-title { margin: 0; font-weight: 700; }
.dz-sub { margin: 4px 0 0; font-size: 0.8rem; color: var(--text-mute); }
.visually-hidden-input {
  position: absolute;
  width: 1px; height: 1px;
  opacity: 0;
  pointer-events: none;
}

/* ===== Frame-Liste ===== */
.frame-list { list-style: none; margin: 12px 0 0; padding: 0; display: grid; gap: 10px; }
.frame-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  cursor: grab;
}
.frame-item.dragging { opacity: 0.5; cursor: grabbing; }
.frame-item.drop-target { border-color: var(--pink); box-shadow: var(--ring); }
.frame-handle {
  color: var(--text-mute);
  font-size: 1.2rem;
  cursor: grab;
  user-select: none;
  padding: 0 2px;
}
.frame-thumb {
  width: 52px; height: 52px;
  border-radius: 9px;
  object-fit: cover;
  background: var(--surface-3);
  flex-shrink: 0;
}
.frame-info { flex: 1; min-width: 0; }
.frame-name {
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.frame-dim { font-size: 0.72rem; color: var(--text-mute); }
.frame-ctrls { display: flex; gap: 4px; flex-shrink: 0; }
.frame-ctrls button {
  font: inherit;
  width: 32px; height: 32px;
  border-radius: 9px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-dim);
  cursor: pointer;
  display: grid;
  place-items: center;
  font-size: 1rem;
  transition: background 0.15s ease, color 0.15s ease;
}
.frame-ctrls button:hover { background: var(--surface-3); color: var(--text); }
.frame-ctrls button:focus-visible { outline: none; box-shadow: var(--ring); }
.frame-ctrls .del:hover { color: var(--err); border-color: var(--err); }

.empty-state {
  text-align: center;
  color: var(--text-mute);
  padding: 22px 8px;
}
.empty-state span { font-size: 2rem; display: block; margin-bottom: 6px; }
.empty-state p { margin: 0; font-size: 0.9rem; }

/* ===== Einstellungen ===== */
.settings { display: grid; gap: 14px; }
@media (min-width: 480px) {
  .settings { grid-template-columns: 1fr 1fr; }
  .field.full { grid-column: 1 / -1; }
}
.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.field label { font-size: 0.85rem; font-weight: 600; color: var(--text-dim); }
.field strong { color: var(--pink-soft); }
select, input[type="number"] {
  font: inherit;
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  width: 100%;
}
select:focus-visible, input:focus-visible { outline: none; box-shadow: var(--ring); border-color: var(--violet-bright); }

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 8px;
  border-radius: 6px;
  background: linear-gradient(90deg, var(--violet), var(--pink));
  outline: none;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--pink);
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0,0,0,0.3);
}
input[type="range"]::-moz-range-thumb {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--pink);
  cursor: pointer;
}
input[type="range"]:focus-visible { box-shadow: var(--ring); }

.checkbox-field { justify-content: flex-end; }
.switch { display: flex; align-items: center; gap: 10px; cursor: pointer; }
.switch input { position: absolute; opacity: 0; width: 0; height: 0; }
.switch-track {
  position: relative;
  width: 46px; height: 26px;
  border-radius: 999px;
  background: var(--surface-3);
  border: 1px solid var(--border);
  transition: background 0.18s ease;
  flex-shrink: 0;
}
.switch-track::after {
  content: "";
  position: absolute;
  top: 2px; left: 2px;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: #fff;
  transition: transform 0.18s ease;
}
.switch input:checked + .switch-track {
  background: linear-gradient(135deg, var(--violet), var(--pink));
}
.switch input:checked + .switch-track::after { transform: translateX(20px); }
.switch input:focus-visible + .switch-track { box-shadow: var(--ring); }
.switch-label { font-size: 0.9rem; font-weight: 600; }

/* ===== Fortschritt ===== */
.progress-wrap { margin-top: 14px; }
.progress-bar {
  height: 10px;
  border-radius: 6px;
  background: var(--surface-3);
  overflow: hidden;
}
.progress-fill {
  display: block;
  height: 100%;
  width: 0%;
  border-radius: 6px;
  background: linear-gradient(90deg, var(--violet), var(--pink));
  transition: width 0.2s ease;
}
.progress-text { margin: 8px 0 0; font-size: 0.85rem; color: var(--text-dim); }

/* ===== Ergebnis ===== */
.result-figure { margin: 0; text-align: center; }
.result-figure img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background:
    linear-gradient(45deg, var(--surface-3) 25%, transparent 25%),
    linear-gradient(-45deg, var(--surface-3) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, var(--surface-3) 75%),
    linear-gradient(-45deg, transparent 75%, var(--surface-3) 75%);
  background-size: 20px 20px;
  background-position: 0 0, 0 10px, 10px -10px, -10px 0;
}
.result-meta { margin: 10px 0 0; font-size: 0.82rem; color: var(--text-mute); }
.result-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 16px;
  justify-content: center;
}
.verify-result { text-align: center; margin: 10px 0 0; font-size: 0.85rem; min-height: 1.2em; }
.verify-result.ok { color: var(--ok); }
.verify-result.err { color: var(--err); }

/* ===== Toast ===== */
.toast-host {
  position: fixed;
  left: 50%;
  bottom: calc(20px + env(safe-area-inset-bottom));
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 200;
  width: min(92vw, 420px);
}
.toast {
  background: var(--surface-3);
  color: var(--text);
  border: 1px solid var(--border);
  border-left: 4px solid var(--violet-bright);
  border-radius: 12px;
  padding: 12px 16px;
  box-shadow: var(--shadow);
  font-size: 0.9rem;
  animation: toastIn 0.25s ease;
}
.toast.ok { border-left-color: var(--ok); }
.toast.err { border-left-color: var(--err); }
.toast.out { animation: toastOut 0.3s ease forwards; }
@keyframes toastIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
@keyframes toastOut { to { opacity: 0; transform: translateY(12px); } }

/* ===== Modal ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 6, 24, 0.7);
  backdrop-filter: blur(3px);
  display: grid;
  place-items: center;
  z-index: 250;
  padding: 20px;
}
.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  max-width: 420px;
  width: 100%;
  box-shadow: var(--shadow);
  animation: toastIn 0.2s ease;
}
.modal-title { margin: 0 0 8px; font-size: 1.1rem; }
.modal-body { margin: 0 0 18px; color: var(--text-dim); font-size: 0.92rem; }
.modal-actions { display: flex; gap: 10px; justify-content: flex-end; flex-wrap: wrap; }

/* ===== Footer ===== */
.app-footer {
  text-align: center;
  padding: 18px 16px calc(24px + env(safe-area-inset-bottom));
  color: var(--text-mute);
  font-size: 0.8rem;
}

.hidden { display: none !important; }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}