/* ============================================================
   Frame Maker page
   ============================================================ */

.frame-page { padding-bottom: 60px; }

/* Visually-hidden but still clickable / focusable.
   We use this on file inputs because mobile browsers (esp. iOS Safari)
   often refuse to programmatically .click() inputs hidden with
   display:none / the `hidden` attribute. */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* File input overlay pattern: the input physically sits ON TOP of its
   visible parent label, transparent, capturing all taps. This is the most
   reliable cross-browser way (iOS Safari especially) — no JS .click()
   needed, no label-for indirection, no hidden-input quirks. */
.file-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
  z-index: 2;
  /* iOS sometimes shrinks file inputs to text-field width */
  -webkit-appearance: none;
  appearance: none;
  font-size: 16px;       /* avoid auto-zoom on focus on iOS */
}
/* The label that contains a .file-overlay needs to be a positioning
   ancestor so the input pins to it. */
.has-input { position: relative; overflow: hidden; }

/* Toast for load errors / confirmations */
.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translate(-50%, 20px);
  background: var(--bg-3);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 12px 18px;
  font-size: 14px;
  max-width: calc(100vw - 32px);
  box-shadow: 0 20px 40px -10px rgba(0,0,0,0.6);
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease, transform .2s ease;
  z-index: 200;
}
.toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}
.toast[data-kind="error"] {
  border-color: rgba(255,77,46,0.5);
  background: linear-gradient(135deg, #2a0808, var(--bg-3));
}
.toast[data-kind="ok"] {
  border-color: rgba(20,241,149,0.5);
  background: linear-gradient(135deg, #052619, var(--bg-3));
}

.frame-hero {
  padding: 56px 0 28px;
}
.frame-title {
  font-family: 'Bebas Neue', sans-serif;
  font-weight: 400;
  letter-spacing: 0.02em;
  line-height: 0.95;
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 14px 0 18px;
  font-size: clamp(40px, 7.5vw, 88px);
}
.frame-title .line {
  background: linear-gradient(180deg, #fff 0%, #c9c9d5 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.frame-title .line-2 {
  background: linear-gradient(90deg, var(--green) 0%, var(--purple) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Studio layout */
.frame-studio { padding: 24px 0 80px; }
.studio-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: 36px;
  align-items: start;
}
.studio-grid > * { min-width: 0; }
@media (max-width: 880px) {
  .studio-grid { grid-template-columns: minmax(0, 1fr); gap: 24px; }
}

/* Stage / canvas */
.stage { display: flex; flex-direction: column; gap: 16px; }
.stage-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  background: var(--bg-3);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  cursor: grab;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}
.stage-frame.grabbing { cursor: grabbing; }
.stage-frame canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

/* Drop overlay */
.drop-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(ellipse at center, rgba(153,69,255,0.18), transparent 60%),
    linear-gradient(135deg, #15141d, #0a0a0f);
  cursor: pointer;
  transition: background .15s ease, border-color .15s ease;
}
.drop-overlay.dragover {
  background:
    radial-gradient(ellipse at center, rgba(20,241,149,0.30), transparent 60%),
    linear-gradient(135deg, #0a1f15, #0a0a0f);
}
.drop-overlay.hidden { display: none; }
.drop-inner {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 24px;
  color: var(--ink-dim);
}
.drop-icon {
  font-size: 56px;
  line-height: 1;
  margin-bottom: 8px;
  animation: spin 6s linear infinite;
}
.drop-inner strong {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(22px, 3vw, 32px);
  letter-spacing: 0.04em;
  color: var(--ink);
}
.drop-inner span { font-size: 14px; }
.drop-meta { font-size: 12px; color: var(--ink-mute); margin-top: 6px; }

/* Controls */
.controls {
  background: var(--bg-3);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.ctrl-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}
.ctrl-section:last-of-type {
  padding-bottom: 0;
  border-bottom: 0;
}
.ctrl-section-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--green);
}
.ctrl-section-title small {
  font-family: 'Inter', system-ui;
  font-size: 11px;
  letter-spacing: 0.02em;
  text-transform: none;
  color: var(--ink-mute);
  margin-left: 6px;
}
.ctrl { display: flex; flex-direction: column; gap: 8px; }
.ctrl > span {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.ctrl input[type="range"] {
  width: 100%;
  accent-color: var(--green);
}
.ctrl-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.btn-sm {
  padding: 8px 14px;
  font-size: 12px;
  min-height: 36px;
}
.btn-sm.danger {
  color: var(--red);
  border-color: rgba(255,77,46,0.3);
}
.btn-sm.danger:hover {
  background: rgba(255,77,46,0.10);
  border-color: var(--red);
}
.btn-sm.toggle[aria-pressed="true"] {
  background: rgba(20,241,149,0.12);
  border-color: var(--green);
  color: var(--green);
}
.ctrl-hint {
  font-size: 12px;
  color: var(--ink-mute);
  margin: 0;
}

/* Preset sticker row */
.presets-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px 12px;
  padding: 6px 4px 8px;
}
@media (max-width: 980px) and (min-width: 521px) {
  /* On tablet where the picker is wider in single-column layout */
  .presets-row { grid-template-columns: repeat(6, 1fr); }
}
@media (max-width: 360px) { .presets-row { grid-template-columns: repeat(3, 1fr); } }

.preset-card {
  background: transparent;
  border: 0;
  padding: 8px 4px 6px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  text-align: center;
  min-width: 0;
  transition: transform .15s cubic-bezier(.34,1.56,.64,1);
}
.preset-card:hover,
.preset-card:focus-visible {
  transform: translateY(-3px) rotate(-2deg);
  outline: none;
}
.preset-card:active { transform: translateY(-1px) rotate(-1deg) scale(0.98); }

/* Die-cut sticker treatment: circular crop, white rim, soft shadow */
.preset-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 50%;
  background: #0f0f17;
  /* Layered: white sticker rim + green glow + drop shadow underneath */
  box-shadow:
    0 0 0 3px #ffffff,                          /* die-cut white rim */
    0 0 0 4px rgba(0,0,0,0.4),                  /* thin keyline */
    0 6px 14px -4px rgba(0,0,0,0.55),           /* soft shadow */
    0 0 0 0 rgba(20,241,149,0);                 /* glow placeholder */
  transition: box-shadow .15s ease, transform .15s ease;
}
.preset-card:hover img,
.preset-card:focus-visible img {
  box-shadow:
    0 0 0 3px #ffffff,
    0 0 0 5px var(--green),                     /* highlight ring on hover */
    0 10px 22px -6px rgba(20,241,149,0.55),
    0 0 24px -2px rgba(20,241,149,0.4);
}

.preset-card span {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-dim);
  width: 100%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color .12s ease;
}
.preset-card:hover span,
.preset-card:focus-visible span { color: var(--green); }
.presets-loading {
  grid-column: 1 / -1;
  font-size: 12px;
  color: var(--ink-mute);
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.1em;
  padding: 8px;
}

/* Overlay preview */
.overlay-preview {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}
.overlay-preview img {
  width: 56px;
  height: 56px;
  object-fit: contain;
  background-image:
    linear-gradient(45deg, #1c1b2a 25%, transparent 25%),
    linear-gradient(-45deg, #1c1b2a 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #1c1b2a 75%),
    linear-gradient(-45deg, transparent 75%, #1c1b2a 75%);
  background-size: 12px 12px;
  background-position: 0 0, 0 6px, 6px -6px, -6px 0;
  background-color: #0f0f17;
  border-radius: 8px;
}
.overlay-meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
  flex: 1;
}
.overlay-name {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.overlay-hint {
  font-size: 11px;
  color: var(--ink-mute);
}

/* Picker */
.picker {
  background: var(--bg-3);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
}
.picker-title {
  font-family: 'Bebas Neue', sans-serif;
  font-weight: 400;
  font-size: 28px;
  letter-spacing: 0.04em;
  margin: 0 0 14px;
  color: var(--ink);
}
.picker-sub {
  font-family: 'Bebas Neue', sans-serif;
  font-weight: 400;
  font-size: 20px;
  letter-spacing: 0.04em;
  margin: 22px 0 10px;
  color: var(--ink);
}
.picker-sub small {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-left: 8px;
  font-weight: 500;
}

.frames {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.frame-card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 8px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-color .15s ease, transform .15s ease, background .15s ease;
  text-align: center;
}
.frame-card:hover { border-color: rgba(20,241,149,0.4); transform: translateY(-2px); }
.frame-card[aria-selected="true"] {
  border-color: var(--green);
  background: linear-gradient(135deg, rgba(20,241,149,0.10), rgba(153,69,255,0.06));
  box-shadow: 0 0 0 1px var(--green) inset;
}
.frame-card canvas {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: #000;
  border-radius: 6px;
}
.frame-card span {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.frame-card[aria-selected="true"] span { color: var(--green); }

.cap-input {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--ink);
  font-family: 'Bebas Neue', sans-serif;
  font-size: 20px;
  letter-spacing: 0.06em;
  outline: none;
  transition: border-color .15s ease;
}
.cap-input:focus { border-color: var(--green); }
.picker-hint { font-size: 12px; color: var(--ink-mute); margin: 6px 0 0; }

/* Output mode chips */
.mode-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.mode-chip {
  cursor: pointer;
  padding: 12px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  text-align: center;
  transition: all .15s ease;
  display: block;
}
.mode-chip input { display: none; }
.mode-chip span {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 18px;
  letter-spacing: 0.06em;
  color: var(--ink);
}
.mode-chip span small {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.mode-chip:has(input:checked) {
  border-color: var(--green);
  background: linear-gradient(135deg, rgba(20,241,149,0.10), rgba(153,69,255,0.06));
  box-shadow: 0 0 0 1px var(--green) inset;
}
.mode-chip:has(input:checked) span small { color: var(--green); }

/* Stage shows checkerboard when sticker mode is on (so transparency is visible) */
.stage-frame.sticker-mode {
  background-image:
    linear-gradient(45deg, #1c1b2a 25%, transparent 25%),
    linear-gradient(-45deg, #1c1b2a 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #1c1b2a 75%),
    linear-gradient(-45deg, transparent 75%, #1c1b2a 75%);
  background-size: 24px 24px;
  background-position: 0 0, 0 12px, 12px -12px, -12px 0;
  background-color: #0f0f17;
}

.picker-actions {
  margin-top: 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.picker-actions .btn { width: 100%; justify-content: center; }
.btn:disabled { opacity: 0.55; cursor: not-allowed; transform: none !important; }

.tips {
  margin-top: 20px;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}
.tips summary {
  cursor: pointer;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.tips ul {
  margin: 10px 0 0;
  padding-left: 18px;
  color: var(--ink-dim);
  font-size: 13px;
  line-height: 1.55;
}
.tips li { margin: 4px 0; }

/* Bottom CTA */
.frame-cta {
  padding: 48px 0 24px;
  border-top: 1px solid var(--line);
  text-align: center;
}
.frame-cta h2 {
  font-size: clamp(28px, 4vw, 44px);
  margin-bottom: .35em;
}
.frame-cta .lede { margin: 0 auto 18px; text-align: center; }
.cta-row.centered { justify-content: center; }

/* Mobile */
@media (max-width: 520px) {
  .frame-hero { padding: 32px 0 12px; }
  .frame-studio { padding: 8px 0 48px; }
  .frame-title { font-size: 38px; margin: 8px 0 12px; line-height: 0.92; }
  .picker { padding: 16px; }
  .frames { grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .frame-card { padding: 6px; }
  .frame-card span { font-size: 9px; letter-spacing: 0.12em; }
  .picker-title { font-size: 24px; }
  .controls { padding: 14px; }
  .drop-icon { font-size: 48px; }
}