/* ============================================================
   BatchFoto — design system
   Clean white, photo-forward, minimal chrome.
   ============================================================ */
:root {
  --ink:      #1a1a18;
  --paper:    #ffffff;
  --canvas:   #faf9f6;
  --tint:     #f1efe8;
  --border:   #e6e4df;
  --divider:  #f0eee9;
  --muted:    #888782;
  --faint:    #a8a6a0;
  --success:  #3b6d11;
  --amber:    #9a6b1f;
  --amber-bg: #fdf6ec;
  --danger:   #a11414;
  --danger-bg:#fbeeee;

  --r-card: 16px;
  --r-btn:  13px;
  --r-chip: 999px;

  --shadow-sm: 0 1px 2px rgba(26,26,24,.04);
  --shadow-md: 0 6px 24px rgba(26,26,24,.10);

  --max: 1080px;
}

* { box-sizing: border-box; }
/* The hidden attribute must always win, even over display rules below
   (otherwise modals/banners with [hidden] would still render). */
[hidden] { display: none !important; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--canvas);
  color: var(--ink);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1,h2,h3 { font-weight: 650; letter-spacing: -.01em; margin: 0; }
.muted { color: var(--muted); }
.faint { color: var(--faint); }
.tiny  { font-size: 12px; }
code { background: var(--tint); padding: 1px 5px; border-radius: 6px; font-size: .9em; }

/* ---------- Top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 16px;
  padding: 12px max(16px, env(safe-area-inset-left)) 12px max(16px, env(safe-area-inset-left));
  background: rgba(250,249,246,.86);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: .5px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 9px; }
.brand-mark {
  display: grid; place-items: center;
  width: 30px; height: 30px; border-radius: 9px;
  background: var(--ink); color: var(--paper);
  font-weight: 700; font-size: 12px; letter-spacing: .02em;
}
.brand-name { font-weight: 680; letter-spacing: -.02em; }

.tabs { display: flex; gap: 4px; margin: 0 auto; background: var(--tint); padding: 4px; border-radius: var(--r-chip); }
.tab {
  border: 0; background: transparent; cursor: pointer;
  padding: 7px 18px; border-radius: var(--r-chip);
  font-size: 14px; font-weight: 600; color: var(--muted);
}
.tab.is-active { background: var(--paper); color: var(--ink); box-shadow: var(--shadow-sm); }

.settings-btn {
  display: flex; align-items: center; gap: 8px;
  border: .5px solid var(--border); background: var(--paper);
  padding: 7px 14px; border-radius: var(--r-btn); cursor: pointer;
  font-size: 14px; font-weight: 600; color: var(--ink);
}
.key-status { width: 8px; height: 8px; border-radius: 50%; background: var(--faint); }
.key-status[data-state="partial"] { background: var(--amber); }
.key-status[data-state="on"] { background: var(--success); }

/* ---------- Layout ---------- */
.workspace { max-width: var(--max); margin: 0 auto; padding: 22px 16px 80px; }
.view { display: none; }
.view.is-active { display: block; }

/* ---------- Banner ---------- */
.banner {
  display: flex; align-items: center; gap: 12px; justify-content: space-between;
  padding: 12px 16px; border-radius: var(--r-btn); margin-bottom: 18px;
  font-size: 14px;
}
.banner-warn { background: var(--amber-bg); color: var(--amber); border: .5px solid #f0e2c8; }
.link-btn { border: 0; background: transparent; color: inherit; font-weight: 700; cursor: pointer; text-decoration: underline; }

/* ---------- Mode toggle ---------- */
.mode-row { margin-bottom: 18px; }
.segmented {
  display: inline-flex; gap: 4px; padding: 4px;
  background: var(--tint); border-radius: 14px;
}
.seg {
  display: flex; flex-direction: column; align-items: flex-start;
  border: 0; background: transparent; cursor: pointer;
  padding: 8px 16px; border-radius: 11px; text-align: left; min-width: 150px;
}
.seg strong { font-size: 14px; }
.seg small { color: var(--muted); font-size: 12px; }
.seg.is-active { background: var(--paper); box-shadow: var(--shadow-sm); }
.mode-hint { margin: 10px 2px 0; color: var(--muted); font-size: 13px; }

/* ---------- Dropzone ---------- */
.dropzone {
  border: 1.5px dashed var(--border); border-radius: var(--r-card);
  background: var(--paper); padding: 30px; text-align: center; cursor: pointer;
  transition: border-color .15s, background .15s;
}
.dropzone:hover, .dropzone:focus-visible { border-color: var(--ink); outline: none; }
.dropzone.is-drag { border-color: var(--ink); background: #fff; box-shadow: var(--shadow-md); }
.dropzone-icon {
  width: 42px; height: 42px; margin: 0 auto 10px; border-radius: 12px;
  background: var(--tint); display: grid; place-items: center; font-size: 24px; color: var(--muted); font-weight: 300;
}
.dropzone-title { margin: 0 0 2px; font-weight: 650; }
.dropzone-sub { margin: 0; color: var(--muted); font-size: 13px; }

/* ---------- Thumbs ---------- */
.thumbs { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.thumb {
  position: relative; width: 84px; height: 84px; border-radius: 11px; overflow: hidden;
  border: .5px solid var(--border); background: var(--tint);
}
.thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.thumb-x {
  position: absolute; top: 4px; right: 4px; width: 20px; height: 20px; border-radius: 50%;
  border: 0; background: rgba(26,26,24,.72); color: #fff; cursor: pointer;
  font-size: 13px; line-height: 1; display: grid; place-items: center;
}

/* ---------- Prompt area ---------- */
.prompt-area { margin-top: 22px; background: var(--paper); border: .5px solid var(--border); border-radius: var(--r-card); padding: 16px; }
.field-label { display: block; font-size: 13px; font-weight: 650; margin-bottom: 7px; }
.prompt-input, .text-input {
  width: 100%; border: .5px solid var(--border); border-radius: 11px; background: var(--canvas);
  padding: 11px 13px; font: inherit; color: var(--ink); resize: vertical;
}
.prompt-input:focus, .text-input:focus { outline: 2px solid var(--ink); outline-offset: -1px; background: #fff; }
.prompt-actions { display: flex; gap: 10px; margin-top: 12px; align-items: center; flex-wrap: wrap; }
.estimate { margin-left: auto; color: var(--muted); font-size: 13px; font-weight: 650; white-space: nowrap; }
.estimate .est-tag { color: var(--faint); font-weight: 500; }

.saved-block { margin-top: 18px; border-top: .5px solid var(--divider); padding-top: 14px; }
.saved-head { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; }
.chips { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 10px; }
.chip {
  display: inline-flex; align-items: stretch; overflow: hidden;
  border: .5px solid var(--border); background: var(--paper); border-radius: var(--r-chip);
}
.chip:hover { border-color: var(--ink); }
.chip-run {
  border: 0; background: transparent; cursor: pointer; color: var(--ink);
  font: inherit; font-weight: 600; font-size: 13px; padding: 8px 4px 8px 16px;
}
.chip-x {
  border: 0; border-left: .5px solid var(--divider); background: transparent; cursor: pointer;
  color: var(--faint); font-size: 18px; line-height: 1; padding: 0 14px;
  display: grid; place-items: center; transition: background .12s, color .12s;
}
.chip-x:hover, .chip-x:focus-visible { background: var(--danger-bg); color: var(--danger); border-left-color: var(--danger-bg); outline: none; }
.chips-empty { color: var(--faint); font-size: 13px; }

/* Clear-all bar above the thumbnail strip */
.thumbs-bar { display: flex; align-items: center; justify-content: space-between; margin-top: 14px; }
.clear-btn {
  border: 0; background: transparent; cursor: pointer; color: var(--muted);
  font: inherit; font-size: 13px; font-weight: 650;
}
.clear-btn:hover { color: var(--danger); }

/* ---------- Option rows / mini toggles / select ---------- */
.opt-row { display: flex; align-items: center; gap: 12px; margin-top: 14px; flex-wrap: wrap; }
.opt-row.wrap { gap: 16px 26px; margin-bottom: 4px; }
.opt-group { display: flex; align-items: center; gap: 9px; }
.field-label.inline { margin: 0; }
.minitoggle { display: inline-flex; gap: 3px; padding: 3px; background: var(--tint); border-radius: 10px; }
.minitoggle button {
  border: 0; background: transparent; cursor: pointer; color: var(--muted);
  padding: 6px 14px; border-radius: 8px; font: inherit; font-size: 13px; font-weight: 600;
}
.minitoggle button.is-active { background: var(--paper); color: var(--ink); box-shadow: var(--shadow-sm); }
.minitoggle button:disabled { opacity: .35; cursor: not-allowed; }
.minitoggle button:disabled.is-active { background: transparent; box-shadow: none; }
.select {
  border: .5px solid var(--border); background: var(--paper); border-radius: 9px;
  padding: 7px 10px; font: inherit; font-size: 13px; font-weight: 600; color: var(--ink); cursor: pointer;
}
.select:focus { outline: 2px solid var(--ink); outline-offset: -1px; }

/* Length slider (locks to the selected model's allowed seconds) */
.slider { -webkit-appearance: none; appearance: none; width: 110px; height: 4px; border-radius: 999px; background: var(--border); outline: none; cursor: pointer; }
.slider::-webkit-slider-thumb { -webkit-appearance: none; appearance: none; width: 18px; height: 18px; border-radius: 50%; background: var(--ink); border: 2px solid var(--paper); box-shadow: var(--shadow-sm); cursor: pointer; }
.slider::-moz-range-thumb { width: 18px; height: 18px; border-radius: 50%; background: var(--ink); border: 2px solid var(--paper); box-shadow: var(--shadow-sm); cursor: pointer; }
.slider:disabled { opacity: .5; cursor: not-allowed; }
.slider-val { font-size: 13px; font-weight: 700; color: var(--ink); min-width: 26px; }

/* ---------- Cost hint (video resolution) ---------- */
.cost-hint { margin: 10px 2px 0; color: var(--muted); font-size: 12.5px; line-height: 1.5; max-width: 640px; }

/* ---------- Keep-tab-open note (video) ---------- */
.keep-open {
  margin: 22px 0 0; padding: 11px 15px; border-radius: var(--r-btn);
  background: var(--amber-bg); color: var(--amber); border: .5px solid #f0e2c8;
  font-size: 13px; font-weight: 600;
}

/* ---------- Video result cards ---------- */
.result-media .vid-source { z-index: 1; } /* visible source frame, under the spinner/video */
.result-media video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; background: #000; z-index: 3; }
.t2v-tile { position: absolute; inset: 0; display: grid; place-items: center; color: var(--faint); font-size: 30px; }
.result-overlay { flex-direction: column; gap: 8px; }
.overlay-label { font-size: 12px; font-weight: 700; color: var(--muted); }

/* ---------- Buttons ---------- */
.btn {
  border: .5px solid transparent; border-radius: var(--r-btn); cursor: pointer;
  padding: 10px 18px; font: inherit; font-weight: 650; font-size: 14px;
  transition: transform .04s, opacity .15s;
}
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-ghost { background: var(--paper); color: var(--ink); border-color: var(--border); }
.btn-ghost:hover:not(:disabled) { border-color: var(--ink); }
.btn-danger { background: var(--danger); color: #fff; }
.btn.small { padding: 8px 14px; font-size: 13px; }

/* ---------- Results ---------- */
.results-head { display: flex; align-items: center; justify-content: space-between; margin: 30px 0 14px; }
.results-title { font-size: 18px; }
.results-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }

.result-card { background: var(--paper); border: .5px solid var(--border); border-radius: var(--r-card); overflow: hidden; }
.result-media {
  position: relative; aspect-ratio: 4/3; background: var(--tint);
  display: grid; place-items: center;
}
.result-media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.result-media .img-before { z-index: 2; opacity: 0; transition: opacity .12s; }
.result-card.show-before .img-before { opacity: 1; }

.result-overlay { position: absolute; inset: 0; z-index: 3; display: grid; place-items: center; background: rgba(255,255,255,.55); }
.spinner {
  width: 26px; height: 26px; border-radius: 50%;
  border: 3px solid var(--border); border-top-color: var(--ink); animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.compare-tag {
  position: absolute; left: 8px; top: 8px; z-index: 4;
  background: rgba(26,26,24,.78); color: #fff; font-size: 11px; font-weight: 700;
  padding: 3px 9px; border-radius: var(--r-chip); letter-spacing: .02em;
}

.result-foot { padding: 11px 12px; display: flex; align-items: center; gap: 8px; justify-content: space-between; }
.result-name { font-size: 12px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.result-tools { display: flex; gap: 6px; flex-shrink: 0; }
.mini-btn {
  border: .5px solid var(--border); background: var(--paper); border-radius: 9px;
  padding: 5px 10px; font-size: 12px; font-weight: 650; cursor: pointer; color: var(--ink);
}
.mini-btn:hover { border-color: var(--ink); }
.mini-btn:disabled { opacity: .4; cursor: not-allowed; }

.status-line { padding: 0 12px 11px; font-size: 12px; font-weight: 600; }
.status-queued { color: var(--muted); }
.status-processing { color: var(--amber); }
.status-done { color: var(--success); }
.status-failed { color: var(--danger); }
.status-failed .why { display: block; font-weight: 500; color: var(--muted); margin-top: 3px; }

/* ---------- Placeholder (video) ---------- */
.placeholder { text-align: center; max-width: 460px; margin: 60px auto; }
.placeholder-icon {
  width: 56px; height: 56px; margin: 0 auto 16px; border-radius: 16px;
  background: var(--tint); display: grid; place-items: center; font-size: 22px; color: var(--muted);
}
.placeholder p { margin-top: 10px; }

/* ---------- Modals ---------- */
.modal-overlay {
  position: fixed; inset: 0; z-index: 50;
  background: rgba(26,26,24,.42);
  display: grid; place-items: center; padding: 16px;
}
.modal {
  width: 100%; max-width: 520px; max-height: 90vh; overflow: auto;
  background: var(--paper); border-radius: 20px; padding: 22px;
  box-shadow: var(--shadow-md);
}
.modal-sm { max-width: 400px; }
.modal-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.icon-btn { border: 0; background: var(--tint); width: 30px; height: 30px; border-radius: 9px; cursor: pointer; font-size: 18px; color: var(--muted); }
.modal-intro { margin: 4px 0 18px; font-size: 13px; }
.modal-foot { margin: 16px 0 0; }

.key-card { border: .5px solid var(--border); border-radius: 14px; padding: 15px; margin-bottom: 16px; }
.key-card-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; gap: 10px; }
.key-card-head h3 { font-size: 14px; }
.pill { font-size: 11px; font-weight: 700; padding: 3px 10px; border-radius: var(--r-chip); background: var(--tint); color: var(--muted); white-space: nowrap; }
.pill[data-state="on"] { background: #eef4e6; color: var(--success); }
.key-input-row { display: flex; gap: 8px; }
.key-input-row .text-input { flex: 1; }
.key-card-actions { display: flex; gap: 8px; margin-top: 12px; }

.help { margin-top: 12px; font-size: 13px; }
.help summary { cursor: pointer; font-weight: 600; color: var(--ink); }
.help ol { margin: 10px 0 0; padding-left: 18px; color: var(--muted); }
.help li { margin-bottom: 6px; }

.confirm-text { font-size: 15px; margin: 4px 0 18px; }
.confirm-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 16px; }

/* ---------- Toasts ---------- */
.toast-wrap { position: fixed; left: 0; right: 0; bottom: 20px; z-index: 60; display: flex; flex-direction: column; align-items: center; gap: 8px; pointer-events: none; }
.toast {
  pointer-events: auto; background: var(--ink); color: var(--paper);
  padding: 11px 18px; border-radius: var(--r-btn); font-size: 14px; font-weight: 600;
  box-shadow: var(--shadow-md); max-width: 90vw;
}
.toast.toast-error { background: var(--danger); }
.toast.toast-success { background: var(--success); }

/* ---------- Responsive ---------- */
@media (max-width: 620px) {
  .tabs { order: 3; width: 100%; margin: 6px 0 0; }
  .topbar { flex-wrap: wrap; }
  .results-grid { grid-template-columns: 1fr; }
  .seg { min-width: 130px; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}