:root {
  --bg: #223467;
  --card: #2b3f76;
  --border: #4f659e;
  --text: #eaf2ff;
  --accent: #21b8ff;
  --danger: #ff5f6d;
  --input: #2a3b6a;
  --track-bg: #000;
  --track-main: #1aa6df;
  --track-alt: #88c7d9;
}

html[data-theme='light'] {
  --bg: #edf1f8;
  --card: #ffffff;
  --border: #c8d2e0;
  --text: #1b2536;
  --accent: #2097ee;
  --danger: #e35160;
  --input: #f4f7fc;
  --track-bg: #f4f7fc;
  --track-main: #1aa6df;
  --track-alt: #88c7d9;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, sans-serif;
}
.app { width: min(980px, 100%); margin: 0 auto; padding: 16px; }
.screen { display: none; }
.screen.active { display: block; }

.topbar h1 { margin: 0; }
.topbar p { margin: 6px 0 12px; opacity: .9; }
.row-between { display: flex; justify-content: space-between; gap: 10px; align-items: start; }
.header-actions { display: flex; gap: 8px; }

.panel, .preview-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 12px;
  margin-bottom: 12px;
}

.phone-stage { display: grid; place-items: center; padding: 12px; border-radius: 14px; border: 1px solid var(--border); background: color-mix(in srgb, var(--bg), black 20%); }
#preview { width: min(100%, 420px); height: auto; border-radius: 12px; border: 1px solid var(--border); display: block; background: #000; cursor: grab; }
#preview.dragging { cursor: grabbing; }

.transport { margin-top: 10px; display: grid; gap: 8px; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.transport label, #timeLabel { grid-column: 1 / -1; }

label { display: block; font-size: .92rem; margin-bottom: 8px; }
input, select, button {
  width: 100%; margin-top: 4px; border-radius: 10px; border: 1px solid var(--border);
  background: var(--input); color: var(--text); padding: 10px;
}
.button-grid, .field-grid { display: grid; gap: 8px; }
.field-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.btn { cursor: pointer; }
.primary { background: linear-gradient(125deg, #1f8fe3, var(--accent)); color: #04192e; font-weight: 700; }
.danger { background: linear-gradient(125deg, #ff6a78, var(--danger)); color: #2a0d12; font-weight: 700; }

#easeGraph { width: 100%; background: #0b0f17; border: 1px solid var(--border); border-radius: 10px; margin-bottom: 8px; }

.timeline-tracks {
  background: var(--track-bg);
  border: 1px solid #223;
  border-radius: 10px;
  padding: 8px;
  display: grid;
  gap: 8px;
  min-height: 120px;
  margin-bottom: 8px;
}
.timeline-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 8px;
  align-items: center;
  border-radius: 8px;
  padding: 4px;
  border: 1px solid transparent;
}
.timeline-row.selected { border-color: color-mix(in srgb, var(--accent), white 20%); background: color-mix(in srgb, var(--card), var(--accent) 10%); }
.timeline-row.multi-selected { border-color: #7fd3ff; background: color-mix(in srgb, #7fd3ff 14%, var(--track-bg)); }
.timeline-row.drag-over { border-color: #4fb5ff; background: color-mix(in srgb, #4fb5ff 18%, var(--track-bg)); }
.timeline-row.dragging-row { opacity: .55; }
.timeline-row.system-row { border-style: dashed; border-color: color-mix(in srgb, var(--border), white 15%); }
.timeline-left {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #21b8ff;
}
.drag-handle {
  min-width: 28px;
  padding: 6px 8px;
  line-height: 1;
  cursor: grab;
}
.drag-handle:active { cursor: grabbing; }
.track-chip {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  border: 1px solid #fff4;
}
.timeline-strip {
  height: 46px;
  position: relative;
  border-radius: 2px;
  overflow: hidden;
  background: var(--track-alt);
  border: 1px solid #6bb2c7;
}
.timeline-strip.main { background: var(--track-main); border-color: #1aa6df; }
.key-dot {
  position: absolute;
  top: 50%;
  width: 18px;
  height: 30px;
  transform: translate(-50%, -50%);
  background: #000;
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
}
.key-dot::before {
  content: '';
  position: absolute;
  inset: 3px;
  background: #fff;
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
}
.key-dot.active {
  transform: translate(-50%, -50%) scale(1.1);
}
.key-dot.active::after {
  content: '';
  position: absolute;
  inset: -4px;
  background: #45f26a;
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
  z-index: -1;
}
.eye-btn { position: relative; min-width: 38px; }
.eye-btn.is-hidden::after {
  content: '';
  position: absolute;
  left: 8px;
  right: 8px;
  top: 50%;
  height: 2px;
  transform: rotate(-32deg);
  transform-origin: center;
  background: #ff5d5d;
}
.playhead {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 2px;
  background: #fff;
}

.project-list { display: grid; gap: 8px; }
.project-item { border: 1px solid var(--border); border-radius: 12px; background: color-mix(in srgb, var(--card), black 4%); padding: 10px; display: flex; justify-content: space-between; gap: 8px; }
.project-actions { display: flex; gap: 6px; width: 160px; }
.panel-grid { display: grid; gap: 12px; }

.menu { position: fixed; inset: 0; background: rgba(0,0,0,.45); display: grid; place-items: center; z-index: 25; padding: 12px; }
.menu.hidden { display: none; }
.menu-card { width: min(430px, 100%); background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 14px; }

.export-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  display: grid;
  place-items: center;
  z-index: 60;
  padding: 16px;
}
.export-overlay.hidden { display: none; }
.export-card {
  width: min(560px, 100%);
  background: #a9a9a9;
  border-radius: 18px;
  border: 2px solid #d9d9d9;
  color: #fff;
  padding: 24px;
  text-align: center;
}
.export-card h3 { margin: 0 0 14px; font-size: 2rem; }
.export-progress {
  width: 100%;
  height: 34px;
  border: 3px solid #f4f4f4;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.15);
  overflow: hidden;
}
.export-progress-bar {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, #20d1ff, #33eeff);
  transition: width .12s linear;
}
#exportProgressText { margin: 10px 0 14px; font-size: 2rem; }
.export-note { margin: 0; font-size: 1.6rem; line-height: 1.25; }

.modal { position: fixed; inset: 0; background: rgba(0,0,0,.55); display: grid; place-items: center; z-index: 30; padding: 12px; }
.modal.hidden { display: none; }
.modal-card { width: min(520px, 92vw); max-height: 88vh; overflow: auto; border: 3px solid #0e0e0e; border-radius: 24px; background: #efefef; color: #0f0f0f; padding: 18px 16px 14px; position: relative; }
.modal-card h2 { margin: 0; text-align: center; font-size: 1.5rem; }
.modal-card hr { border: 0; border-top: 2px solid #101010; margin: 8px 0 10px; }
.icon-close { position: absolute; right: 18px; top: 16px; width: auto; border: 0; background: transparent; color: #d42a2a; font-size: 44px; line-height: 1; padding: 2px 8px; }
.ratio-row { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 10px; margin-bottom: 12px; }
.ratio-btn { background: #fff; color: #000; border: 2px solid #0f0f0f; min-height: 42px; font-size: 1rem; }
.ratio-btn.selected { outline: 4px solid #2da8ff; }
.modal-card label { color: #141414; font-size: 1rem; display: grid; gap: 6px; margin-bottom: 8px; }
.modal-card input, .modal-card select { background: #fff; color: #000; border: 2px solid #0f0f0f; font-size: 1rem; padding: 8px 10px; }
.bg-row { display: grid; grid-template-columns: 90px 1fr; gap: 12px; }
#modalBgColor { height: 42px; padding: 0; }
#confirmCreateBtn { width: 170px; margin: 6px auto 0; display: block; font-size: 1.1rem; border-radius: 12px; }

@media (min-width: 820px) {
  .panel-grid { grid-template-columns: minmax(320px, .9fr) minmax(420px, 1.25fr); }
  .transport { grid-template-columns: repeat(7, minmax(0, 1fr)); align-items: center; }
  .transport label { grid-column: span 2; }
  #timeLabel { grid-column: span 1; text-align: right; }
}


.hero {
  background: radial-gradient(circle at 20% 20%, color-mix(in srgb, var(--accent), white 20%) 0%, transparent 45%),
    linear-gradient(140deg, color-mix(in srgb, var(--card), white 6%), color-mix(in srgb, var(--card), black 6%));
  padding: 16px;
  border-radius: 16px;
  border: 1px solid color-mix(in srgb, var(--border), white 18%);
}
.social-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.social { font-weight: 600; }
.social.google { background: linear-gradient(120deg, #ffffff, #f3f3f3); color: #111; }
.social.github { background: linear-gradient(120deg, #1f2937, #111827); color: #fff; }
.social.apple { background: linear-gradient(120deg, #0f0f10, #2f2f31); color: #fff; }
.social.microsoft { background: linear-gradient(120deg, #2563eb, #0ea5e9); color: #fff; }

.project-item a.btn { text-decoration: none; display: grid; place-items: center; }

@media (max-width: 760px) {
  .social-grid { grid-template-columns: 1fr; }
}


.site-header, .site-footer { background: color-mix(in srgb, var(--card), black 8%); border-bottom: 1px solid var(--border); }
.site-footer { border-top: 1px solid var(--border); border-bottom: 0; margin-top: 16px; }
.brand-row { display: flex; justify-content: space-between; align-items: center; padding: 10px 16px; }
.header-right { display: flex; align-items: center; gap: 8px; }
.muted { opacity: .75; font-size: .9rem; }
.lang-inline { margin: 0; font-size: .85rem; }
.lang-inline select { margin-top: 0; padding: 6px 8px; }
.auth-card { position: relative; }
#authMiniStatus { max-width: 140px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.hidden { display: none !important; }
.text-link { width: auto; margin: 0; padding: 0; border: 0; background: transparent; color: var(--accent); text-decoration: underline; cursor: pointer; font: inherit; }


.logo-wrap { display: inline-flex; align-items: center; gap: 10px; }
.logo-mark { width: 30px; height: 30px; border-radius: 9px; background: conic-gradient(from 140deg, #27d5ff, #4effa1, #27d5ff); box-shadow: inset 0 0 0 2px #ffffff44, 0 4px 12px #00000033; position: relative; }
.logo-mark::after { content: ''; position: absolute; inset: 7px; border-radius: 6px; background: #223467; }
.warn-text { color: #ffd27a; font-size: .9rem; }

#otpInfoText { white-space: pre-line; }



/* Editor refresh */
#editorScreen .topbar {
  background: linear-gradient(130deg, color-mix(in srgb, var(--card), white 10%), color-mix(in srgb, var(--card), black 4%));
  padding: 12px;
  border-radius: 14px;
  border: 1px solid color-mix(in srgb, var(--border), white 12%);
  margin-bottom: 12px;
}
.preview-card, .panel {
  box-shadow: 0 10px 26px rgba(0,0,0,.18);
}
.panel h2 { margin-top: 0; }

.otp-digits { display: flex; gap: 20px; justify-content: center; margin: 10px 0; }
.otp-digit {
  width: 56px; height: 68px; text-align: center; font-size: 2rem; font-weight: 700;
  border-radius: 12px; border: 2px solid var(--border); background: var(--input); color: var(--text);
}
.otp-digit:focus { outline: 2px solid var(--accent); }


.control-card {
  border: 2px solid color-mix(in srgb, var(--border), white 18%);
  border-radius: 22px;
  padding: 12px;
  background: color-mix(in srgb, var(--card), black 4%);
  margin-bottom: 10px;
}
.control-card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 2px solid color-mix(in srgb, var(--border), white 20%);
  padding: 0 6px 8px;
  margin-bottom: 10px;
  font-weight: 700;
}
.card-dots { opacity: .8; letter-spacing: 2px; }

.card-head-actions { display: inline-flex; align-items: center; gap: 8px; }
.card-collapse-btn {
  width: 34px;
  min-height: 34px;
  border-radius: 999px;
  border: 2px solid color-mix(in srgb, var(--border), white 20%);
  background: color-mix(in srgb, var(--input), white 3%);
  color: var(--text);
  font-size: 1.1rem;
  line-height: 1;
  padding: 0;
}
.card-collapse-btn:hover { filter: brightness(1.08); }
.control-card.is-collapsed .card-collapse-btn { transform: rotate(-90deg); }
.control-card-body {
  display: block;
  overflow: hidden;
  max-height: 1200px;
  opacity: 1;
  transform: translateY(0);
  transition: max-height .28s ease, opacity .22s ease, transform .28s ease;
}
.control-card.is-collapsed .control-card-body {
  max-height: 0;
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
}
.movement-pad {
  position: relative;
  min-height: 220px;
  border: 2px solid color-mix(in srgb, var(--border), white 16%);
  border-radius: 26px;
  padding: 14px;
  overflow: hidden;
  background: linear-gradient(180deg, color-mix(in srgb, var(--input), white 4%), color-mix(in srgb, var(--input), black 3%));
}
.movement-pills {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  max-width: 360px;
  margin: 0 auto;
}
.movement-pills label { text-align: center; }
.movement-pills input {
  text-align: center;
  border-radius: 20px;
  border-width: 2px;
  font-weight: 700;
}
.movement-hint {
  position: absolute;
  left: 50%;
  top: 58%;
  transform: translate(-50%, -50%);
  color: color-mix(in srgb, var(--text), transparent 50%);
  font-size: 1.05rem;
  pointer-events: none;
}
.move-handle {
  position: absolute;
  width: 18px;
  height: 18px;
  border-radius: 999px;
  border: 2px solid #fff;
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(0,0,0,.2);
  transform: translate(-50%, -50%);
  pointer-events: none;
}
.rotate-dial-wrap { display: grid; place-items: center; padding: 8px 0 4px; }
.rotate-dial {
  width: 260px;
  height: 260px;
  border-radius: 999px;
  border: 8px solid color-mix(in srgb, var(--border), white 20%);
  position: relative;
  background: radial-gradient(circle, color-mix(in srgb, var(--card), white 2%), color-mix(in srgb, var(--card), black 8%));
}
.rotate-knob {
  position: absolute;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  border: 6px solid color-mix(in srgb, var(--border), white 26%);
  background: var(--accent);
  transform: translate(-50%, -50%);
}
.rotate-value {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  min-width: 130px;
  text-align: center;
  padding: 10px 16px;
  border-radius: 18px;
  border: 3px solid color-mix(in srgb, var(--border), white 26%);
  background: color-mix(in srgb, var(--input), white 8%);
  font-weight: 800;
  font-size: 2rem;
}
.basic-value-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }


#effectExtraControls { margin: 8px 0 10px; }
.unavailable-note {
  position: absolute;
  left: 50%;
  top: 72%;
  transform: translate(-50%, -50%);
  color: #ffcf8f;
  font-size: .92rem;
  text-align: center;
  background: rgba(0,0,0,.25);
  border: 1px dashed rgba(255,255,255,.25);
  border-radius: 8px;
  padding: 6px 10px;
}
.movement-pad.is-disabled,
.rotate-dial.is-disabled {
  opacity: .45;
  filter: grayscale(.25);
  cursor: not-allowed;
}
.rotate-dial .unavailable-note {
  top: 78%;
  width: min(220px, 80%);
}


.single-action-grid { grid-template-columns: 1fr; }
.frame-action-btn {
  font-weight: 700;
  border-radius: 14px;
  border: 1px solid color-mix(in srgb, var(--border), white 12%);
  background: linear-gradient(130deg, color-mix(in srgb, var(--input), white 4%), color-mix(in srgb, var(--input), black 4%));
}
.frame-action-btn.danger {
  background: linear-gradient(130deg, #6f2230, #91293a);
  border-color: #d95470;
}
#easeCard { margin-top: 8px; }
#frameStudioCard { margin-top: 10px; }


.mini-card {
  border: 1px solid color-mix(in srgb, var(--border), white 14%);
  border-radius: 14px;
  padding: 10px;
  margin-bottom: 10px;
  background: color-mix(in srgb, var(--input), black 6%);
}
.mini-tip { margin: 0 0 10px; text-align: center; font-weight: 600; opacity: .9; }
.size-stepper { display: flex; align-items: center; justify-content: center; gap: 16px; }
#scaleQuickInput { max-width: 130px; text-align: center; font-size: 1.2rem; font-weight: 700; }
.stepper-arrows { display: grid; gap: 8px; }
.step-arrow { width: 44px; min-height: 36px; border-radius: 10px; font-size: 1.1rem; }
.graph-tools-card {
  display: grid;
  grid-template-columns: auto auto auto 1fr auto;
  align-items: center;
  gap: 10px;
}
.diamond-tool {
  min-width: 54px;
  min-height: 54px;
  border-radius: 14px;
  font-weight: 800;
  font-size: 1.1rem;
}
.icon-tool { min-width: 54px; min-height: 54px; border-radius: 14px; font-size: 1.3rem; }
.drop-tool { font-size: 2rem; line-height: 1; }
#effectStrengthSlider { width: 100%; }
.percent-box {
  width: 90px;
  text-align: center;
  font-weight: 700;
  border-radius: 10px;
}
.diamond-tool.danger { background: #8d3140; border-color: #d66479; }