:root {
  --bg: #f3f6fb;
  --bg-2: #e7eef8;
  --panel: #ffffff;
  --panel-soft: #f8fbff;
  --ink: #162238;
  --ink-soft: #4f5f7e;
  --line: #d8e2f1;
  --line-strong: #bdd0ea;
  --brand: #0f77d5;
  --brand-2: #0db3a3;
  --brand-deep: #0c3f8c;
  --ok: #126d2a;
  --wait: #915f00;
  --err: #a72323;
  --shadow-sm: 0 8px 20px rgba(24, 45, 85, 0.08);
  --shadow-md: 0 18px 42px rgba(12, 36, 75, 0.12);
}

* { box-sizing: border-box; font-family: "Nunito", sans-serif !important; }

body {
  margin: 0;
  font-family: "Nunito", "Avenir Next", "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(1000px 600px at 8% -10%, rgba(15, 119, 213, 0.14), transparent 50%),
    radial-gradient(900px 560px at 92% -16%, rgba(13, 179, 163, 0.14), transparent 52%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
}

.page {
  min-height: 100vh;
  max-width: 1240px;
  margin: 0 auto;
  padding: 46px 20px 40px;
}

.hero {
  text-align: center;
  margin-bottom: 26px;
}

h1 {
  margin: 0;
  font-size: clamp(2.1rem, 4.4vw, 3.8rem);
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: #101a2d;
}

.sub {
  margin: 12px 0 0;
  color: var(--ink-soft);
  font-size: clamp(1rem, 1.7vw, 1.35rem);
  font-weight: 500;
}

.tool-discovery {
  margin: 0 0 16px;
  display: grid;
  gap: 10px;
}

.tool-search {
  display: grid;
  gap: 6px;
  color: #2a3d62;
  font-weight: 600;
}

.tool-search input[type="search"] {
  border: 1px solid #c2d4eb;
  border-radius: 999px;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.9);
}

.tool-cats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tool-cat {
  border: 1px solid #c7d8ef;
  background: rgba(255, 255, 255, 0.88);
  color: #29406a;
  border-radius: 999px;
  padding: 7px 12px;
  font-weight: 600;
  cursor: pointer;
}

.tool-cat.active {
  background: linear-gradient(135deg, #0f77d5 0%, #0c54af 100%);
  border-color: #0f77d5;
  color: #fff;
}

.tool-empty {
  color: #607294;
  font-size: 0.9rem;
  padding-left: 2px;
}

.tool-wrap {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 12px;
  margin-bottom: 22px;
}

.tool-btn {
  --icon-border: #63a5ea;
  --icon-fg: #2a7bcf;
  --icon-bg: rgba(99, 165, 234, 0.12);
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(180deg, #ffffff 0%, #f4f8ff 100%);
  min-height: 108px;
  padding: 14px 12px;
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 8px;
  color: #213050;
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: transform 0.16s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.tool-btn .icon {
  width: 34px;
  height: 34px;
  border: 2px solid var(--icon-border);
  border-radius: 10px;
  display: grid;
  place-items: center;
  color: var(--icon-fg);
  background: var(--icon-bg);
}

.tool-btn .icon svg {
  width: 20px;
  height: 20px;
}

.tool-btn .label {
  font-size: 0.98rem;
  text-align: center;
  font-weight: 600;
}

.tool-beta {
  display: inline-block;
  margin-left: 6px;
  padding: 1px 6px;
  border-radius: 999px;
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: #0f4f9b;
  background: #dcecff;
  border: 1px solid #b7d4fb;
  vertical-align: middle;
}

.tool-btn .sub-label {
  font-size: 0.72rem;
  line-height: 1.2;
  text-align: center;
  color: #6d7f9c;
  font-weight: 500;
  margin-top: -2px;
}

.tool-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 26px rgba(17, 45, 94, 0.15);
  border-color: var(--line-strong);
}

.tool-btn.active {
  border-color: #5ea5eb;
  background: linear-gradient(180deg, #eef7ff 0%, #e9f5ff 100%);
  box-shadow: 0 16px 28px rgba(15, 119, 213, 0.2);
}

.tool-btn[data-op="merge_audio_video"] { --icon-border: #4d9fff; --icon-fg: #1769cc; --icon-bg: rgba(77, 159, 255, 0.14); }
.tool-btn[data-op="convert_video"] { --icon-border: #6e8cff; --icon-fg: #3956d4; --icon-bg: rgba(110, 140, 255, 0.14); }
.tool-btn[data-op="extract_audio"] { --icon-border: #47b7c7; --icon-fg: #0e7f8f; --icon-bg: rgba(71, 183, 199, 0.15); }
.tool-btn[data-op="mix_audio"] { --icon-border: #31b36a; --icon-fg: #157344; --icon-bg: rgba(49, 179, 106, 0.15); }
.tool-btn[data-op="resize_video"] { --icon-border: #5f93ff; --icon-fg: #2b64d4; --icon-bg: rgba(95, 147, 255, 0.14); }
.tool-btn[data-op="enhance_video"] { --icon-border: #7a7bff; --icon-fg: #4a4de0; --icon-bg: rgba(122, 123, 255, 0.14); }
.tool-btn[data-op="compress_video"] { --icon-border: #5e86c6; --icon-fg: #28508f; --icon-bg: rgba(94, 134, 198, 0.15); }
.tool-btn[data-op="meme_maker"] { --icon-border: #ef8a3a; --icon-fg: #b05c1d; --icon-bg: rgba(239, 138, 58, 0.16); }
.tool-btn[data-op="image_audio_video"] { --icon-border: #2da8a0; --icon-fg: #0d6f69; --icon-bg: rgba(45, 168, 160, 0.15); }
.tool-btn[data-op="crop_video"] { --icon-border: #3f86de; --icon-fg: #1d5fb3; --icon-bg: rgba(63, 134, 222, 0.14); }
.tool-btn[data-op="zoom_focus"] { --icon-border: #3f9ddc; --icon-fg: #1e6fad; --icon-bg: rgba(63, 157, 220, 0.14); }
.tool-btn[data-op="trim_video"] { --icon-border: #596ecf; --icon-fg: #344fa8; --icon-bg: rgba(89, 110, 207, 0.15); }
.tool-btn[data-op="split_clip"] { --icon-border: #4b6fd6; --icon-fg: #2548aa; --icon-bg: rgba(75, 111, 214, 0.15); }
.tool-btn[data-op="speed_ramp"] { --icon-border: #6a77de; --icon-fg: #3f49b6; --icon-bg: rgba(106, 119, 222, 0.15); }
.tool-btn[data-op="overlay_video"] { --icon-border: #529cc4; --icon-fg: #216c93; --icon-bg: rgba(82, 156, 196, 0.14); }
.tool-btn[data-op="effects_video"] { --icon-border: #8a74f5; --icon-fg: #5a43c6; --icon-bg: rgba(138, 116, 245, 0.16); }
.tool-btn[data-op="color_grade_video"] { --icon-border: #f08a47; --icon-fg: #b35a21; --icon-bg: rgba(240, 138, 71, 0.16); }
.tool-btn[data-op="overlay_pip"] { --icon-border: #4b9da1; --icon-fg: #196b70; --icon-bg: rgba(75, 157, 161, 0.15); }
.tool-btn[data-op="merge_media"] { --icon-border: #6381df; --icon-fg: #334fab; --icon-bg: rgba(99, 129, 223, 0.15); }
.tool-btn[data-op="studio_editor"] { --icon-border: #4f8ac9; --icon-fg: #235a95; --icon-bg: rgba(79, 138, 201, 0.16); }
.tool-btn[data-op="smart_recorder"] { --icon-border: #33a37c; --icon-fg: #137a59; --icon-bg: rgba(51, 163, 124, 0.16); }

.workbench {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96) 0%, rgba(246, 251, 255, 0.96) 100%);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow-md);
  padding: 18px;
  backdrop-filter: blur(3px);
}

.form {
  display: grid;
  gap: 12px;
}

.form.tool-meme {
  grid-template-columns: repeat(6, minmax(70px, 1fr)) minmax(340px, 1fr);
  column-gap: 14px;
  row-gap: 8px;
  align-items: start;
}

.form.tool-meme .field[data-for="video"],
.form.tool-meme .field[data-for="image"] {
  grid-column: 1 / 7;
  order: 2;
}

.form.tool-meme .meme-control {
  grid-column: 1 / 7;
  background: linear-gradient(180deg, #ffffff 0%, #f7fbff 100%);
  border: 1px solid #d6e3f4;
  border-radius: 10px;
  padding: 7px 9px;
}

.form.tool-meme .field[data-for="audio"],
.form.tool-meme .field[data-for="bgm"],
.form.tool-meme .field[data-for="bgmVolume"] {
  display: none !important;
}

.form.tool-meme .meme-control[data-for="memeTopText"],
.form.tool-meme .meme-control[data-for="memeBottomText"] {
  border-color: #c9dbf3;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.8);
}
.form.tool-meme .meme-control[data-for="memeSource"] { order: 1; }
.form.tool-meme .meme-control[data-for="memeTopText"] { order: 3; }
.form.tool-meme .meme-control[data-for="memeBottomText"] { order: 4; }
.form.tool-meme .meme-control[data-for="memeCanvasColor"] { order: 5; }
.form.tool-meme .meme-control[data-for="memeTextColor"] { order: 6; }
.form.tool-meme .meme-control[data-for="memeTextSize"] { order: 7; }
.form.tool-meme .meme-control[data-for="memeFont"] { order: 8; }
.form.tool-meme .meme-preview-field { order: 9; }

.form.tool-meme .meme-control[data-for="memeTopText"] { grid-column: 1 / 4; }
.form.tool-meme .meme-control[data-for="memeBottomText"] { grid-column: 4 / 7; }
.form.tool-meme .meme-control[data-for="memeCanvasColor"] { grid-column: 1 / 2; }
.form.tool-meme .meme-control[data-for="memeTextColor"] { grid-column: 2 / 3; }
.form.tool-meme .meme-control[data-for="memeTextSize"] { grid-column: 3 / 5; }
.form.tool-meme .meme-control[data-for="memeFont"] { grid-column: 5 / 7; }
.form.tool-meme .meme-control[data-for="memeAudioOptions"] { grid-column: 1 / 4; }
.form.tool-meme .meme-control[data-for="memeEmojiPicker"] { grid-column: 4 / 7; }

.form.tool-meme .meme-control[data-for="memeCanvasColor"],
.form.tool-meme .meme-control[data-for="memeTextColor"],
.form.tool-meme .meme-control[data-for="memeTextSize"],
.form.tool-meme .meme-control[data-for="memeFont"] {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 6px;
}

.form.tool-meme .meme-control[data-for="memeCanvasColor"] > span,
.form.tool-meme .meme-control[data-for="memeTextColor"] > span,
.form.tool-meme .meme-control[data-for="memeTextSize"] > span,
.form.tool-meme .meme-control[data-for="memeFont"] > span {
  font-size: 0.8rem;
  line-height: 1;
}

.meme-audio-row {
  display: flex;
  gap: 6px;
  flex-wrap: nowrap;
  align-items: center;
}

.meme-audio-row button {
  border: 0;
  border-radius: 8px;
  background: linear-gradient(180deg, #2d70bc 0%, #1d4f8c 100%);
  color: #fff;
  font-weight: 600;
  padding: 6px 10px;
  cursor: pointer;
}

.meme-bgm-inline {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
  font-size: 0.82rem;
  color: #3f5375;
}

.meme-bgm-inline input {
  width: 76px;
  padding: 6px 8px;
}

.meme-audio-selected {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
  font-size: 0.82rem;
  color: #405a82;
}

.meme-audio-selected button {
  border: 0;
  border-radius: 6px;
  padding: 4px 8px;
  background: #d84b4b;
  color: #fff;
  cursor: pointer;
}

.emoji-target-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 6px;
}

.emoji-target-row select {
  max-width: 150px;
  min-width: 120px;
}

.meme-emoji-toggle {
  border: 1px solid #bdd2ee;
  border-radius: 8px;
  padding: 7px 10px;
  background: linear-gradient(180deg, #ffffff 0%, #f3f8ff 100%);
  color: #284a74;
  font-weight: 600;
  cursor: pointer;
}

.meme-emoji-dropdown {
  margin-top: 6px;
  display: grid;
  gap: 6px;
}

.meme-emoji-dropdown input[type="search"] {
  padding: 8px 10px;
}

.meme-emoji-grid {
  display: grid;
  grid-template-columns: repeat(10, minmax(0, 1fr));
  gap: 4px;
  max-height: 102px;
  overflow: auto;
  border: 1px solid #d2e1f3;
  border-radius: 8px;
  padding: 6px;
  background: #fff;
}

.meme-emoji-btn {
  border: 1px solid #d3e0f2;
  border-radius: 6px;
  background: linear-gradient(180deg, #ffffff 0%, #f4f9ff 100%);
  padding: 3px 2px;
  font-size: 0.95rem;
  line-height: 1.2;
  cursor: pointer;
}

.meme-emoji-btn:hover {
  border-color: #86b5e8;
}

.form.tool-meme .meme-preview-field {
  grid-column: 7;
  grid-row: 2 / span 12;
  background: linear-gradient(180deg, #ffffff 0%, #f6faff 100%);
  border: 1px solid #d5e3f4;
  border-radius: 10px;
  padding: 8px 10px;
  position: sticky;
  top: 10px;
}

.form.tool-meme input[type="color"] {
  width: 100%;
  height: 30px;
  border-radius: 8px;
  border: 1px solid #bdd2ed;
  background: #fff;
  padding: 2px 4px;
  cursor: pointer;
}

.form.tool-meme .meme-control[data-for="memeTopText"],
.form.tool-meme .meme-control[data-for="memeTopText"] input,
.form.tool-meme .meme-control[data-for="memeBottomText"] input,
.form.tool-meme .meme-control[data-for="memeFont"] select {
  min-height: 32px;
  padding-top: 7px;
  padding-bottom: 7px;
}

.form.tool-color {
  grid-template-columns: minmax(340px, 1fr) minmax(320px, 520px);
  column-gap: 18px;
  align-items: start;
}

.form.tool-color .field[data-for="video"] {
  grid-column: 1 / -1;
}

.form.tool-color .field[data-for="colorBrightness"],
.form.tool-color .field[data-for="colorContrast"],
.form.tool-color .field[data-for="colorSaturation"],
.form.tool-color .field[data-for="colorGamma"],
.form.tool-color .field[data-for="colorHue"] {
  grid-column: 1;
  background: linear-gradient(180deg, #ffffff 0%, #f7fbff 100%);
  border: 1px solid #d6e3f4;
  border-radius: 12px;
  padding: 10px 12px;
}

.form.tool-color .field[data-for="colorPreview"] {
  grid-column: 2;
  grid-row: 2 / span 6;
  background: linear-gradient(180deg, #ffffff 0%, #f6faff 100%);
  border: 1px solid #d5e3f4;
  border-radius: 12px;
  padding: 10px 12px;
  position: sticky;
  top: 10px;
}

.field {
  display: grid;
  gap: 7px;
  font-weight: 600;
  color: #283755;
}

input[type="file"],
input[type="text"],
input[type="number"],
input[type="range"],
select,
textarea {
  border: 1px solid #c2d3ea;
  padding: 11px 12px;
  border-radius: 11px;
  background: #fff;
  font-size: 0.95rem;
  color: #223153;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  padding-right: 40px;
  background-image:
    linear-gradient(45deg, transparent 50%, #4f72a5 50%),
    linear-gradient(135deg, #4f72a5 50%, transparent 50%),
    linear-gradient(180deg, #ffffff 0%, #f5f9ff 100%);
  background-position:
    calc(100% - 18px) calc(50% - 3px),
    calc(100% - 12px) calc(50% - 3px),
    0 0;
  background-size:
    6px 6px,
    6px 6px,
    100% 100%;
  background-repeat: no-repeat;
  cursor: pointer;
}

select:hover {
  border-color: #89b6e6;
}

input[type="file"]:focus,
input[type="text"]:focus,
input[type="number"]:focus,
input[type="range"]:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: #75b0ea;
  box-shadow: 0 0 0 3px rgba(15, 119, 213, 0.14);
}

input[type="file"] {
  border: 1.5px dashed #a9c4e6;
  background: linear-gradient(180deg, #ffffff 0%, #f5f9ff 100%);
  padding: 10px;
  color: #38517a;
}

input[type="file"]::file-selector-button {
  margin-right: 10px;
  border: 1px solid #9ec2ea;
  border-radius: 8px;
  padding: 7px 11px;
  font-weight: 600;
  color: #11396d;
  background: linear-gradient(180deg, #f4f9ff 0%, #e4f0ff 100%);
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease, transform 0.12s ease;
}

input[type="file"]::file-selector-button:hover {
  border-color: #6ea8e3;
  background: linear-gradient(180deg, #eaf4ff 0%, #d8eaff 100%);
}

.field.drop-active {
  outline: 2px dashed #3c93e5;
  outline-offset: 3px;
  border-radius: 12px;
  background: linear-gradient(180deg, #f7fbff 0%, #edf5ff 100%);
}

input[type="range"] {
  padding: 0;
  height: 8px;
  accent-color: #0f77d5;
  background: transparent;
}

.meme-text-input {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.015em;
  color: #1a2a46;
  background: linear-gradient(180deg, #ffffff 0%, #f3f8ff 100%);
  border: 1px solid #b8d0ee;
  border-radius: 10px;
  min-height: 44px;
}

.meme-text-input::placeholder {
  color: #6f84a7;
  letter-spacing: 0.04em;
}

input[type="file"].has-files {
  border-style: solid;
  border-color: #7eb0e2;
}

.file-hint {
  margin-top: -1px;
  color: #526889;
  font-size: 0.83rem;
  line-height: 1.35;
  word-break: break-word;
}

textarea {
  resize: vertical;
  font-family: inherit;
}

.editor-video {
  width: 100%;
  border-radius: 12px;
  background: #000;
  border: 1px solid #b6cae3;
}

.crop-editor {
  position: relative;
}

.crop-overlay {
  position: absolute;
  inset: 0;
  cursor: crosshair;
}

#crop-editor,
#overlay-editor,
#zoom-editor {
  width: fit-content;
  max-width: 100%;
  margin: 0 auto;
}

#crop-preview-video,
#zoom-preview-video,
#trim-preview-video,
#overlay-preview-video {
  width: auto;
  max-width: 100%;
  max-height: 440px;
  height: auto;
  display: block;
}

#trim-preview-video { margin: 0 auto; }

.crop-selection {
  position: absolute;
  border: 2px solid #4ea3f1;
  background: rgba(78, 163, 241, 0.24);
}

.trim-track {
  position: relative;
  height: 28px;
  border-radius: 9px;
  background: linear-gradient(180deg, #eef2f8 0%, #dde6f4 100%);
  border: 1px solid #c8d6e9;
  overflow: hidden;
  cursor: crosshair;
}

.trim-existing,
.trim-draft {
  position: absolute;
  inset: 0;
}

.trim-segment {
  position: absolute;
  top: 0;
  bottom: 0;
  background: linear-gradient(180deg, rgba(196, 61, 61, 0.95) 0%, rgba(161, 44, 44, 0.95) 100%);
  cursor: grab;
}

.trim-segment.draft {
  background: linear-gradient(180deg, rgba(15, 119, 213, 0.92) 0%, rgba(12, 87, 173, 0.92) 100%);
  cursor: crosshair;
}

.zoom-segment {
  background: linear-gradient(180deg, rgba(42, 140, 222, 0.95) 0%, rgba(20, 94, 176, 0.95) 100%);
}

.zoom-segment.active {
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.75);
}

.trim-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.trim-actions button {
  background: linear-gradient(180deg, #283a59 0%, #1b2a42 100%);
  color: #fff;
  border: 0;
  border-radius: 8px;
  padding: 8px 11px;
  font-weight: 600;
  cursor: pointer;
}

.trim-info {
  color: var(--ink-soft);
  font-size: 0.91rem;
}

.trim-list {
  display: grid;
  gap: 6px;
}

.trim-list-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  background: #edf3fd;
  border: 1px solid #d5e1f2;
  border-radius: 8px;
  padding: 8px 9px;
  font-size: 0.9rem;
  color: #25395d;
}

.trim-list-item button {
  background: #b03535;
  color: #fff;
  border: 0;
  border-radius: 6px;
  padding: 4px 8px;
  cursor: pointer;
}

.trim-list-item.active {
  border-color: #78afe6;
  box-shadow: inset 0 0 0 1px rgba(120, 175, 230, 0.35);
}

.zoom-seg-actions {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.zoom-seg-actions button[data-load-zoom-seg],
.zoom-seg-actions button[data-apply-zoom-seg] {
  background: linear-gradient(180deg, #2d6eb5 0%, #1e4f8a 100%);
}

.ramp-custom-wrap {
  display: grid;
  gap: 8px;
}

.ramp-custom-list {
  display: grid;
  gap: 8px;
}

.ramp-custom-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(120px, 1fr)) auto;
  gap: 8px;
  align-items: end;
  padding: 8px;
  border: 1px solid #d5e1f2;
  border-radius: 10px;
  background: #f7fbff;
}

.ramp-custom-row label {
  display: grid;
  gap: 4px;
  font-size: 0.82rem;
  color: #3f5375;
}

.ramp-custom-row input[type="number"] {
  min-width: 0;
}

.ramp-custom-actions button,
.ramp-custom-remove {
  border: 0;
  border-radius: 8px;
  background: linear-gradient(180deg, #2a6fc0 0%, #1a4c8f 100%);
  color: #fff;
  font-weight: 600;
  padding: 8px 12px;
  cursor: pointer;
}

.ramp-custom-summary {
  color: #51698d;
  font-size: 0.83rem;
}

.studio-editor {
  display: grid;
  grid-template-columns: minmax(300px, 380px) minmax(0, 1fr);
  gap: 14px;
}

.studio-left {
  display: grid;
  gap: 10px;
}

.studio-right {
  display: grid;
  gap: 10px;
}

.studio-card {
  border: 1px solid #d2e0f2;
  border-radius: 12px;
  padding: 10px;
  background: linear-gradient(180deg, #ffffff 0%, #f6faff 100%);
  display: grid;
  gap: 8px;
}

.studio-tool-grid button {
  border: 0;
  border-radius: 8px;
  background: linear-gradient(180deg, #2b6eb8 0%, #1d4f8e 100%);
  color: #fff;
  padding: 8px 10px;
  font-weight: 600;
  cursor: pointer;
}

.studio-tool-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.studio-canvas {
  border: 1px solid #cadcf2;
  border-radius: 12px;
  padding: 10px;
  background: #0f1728;
}

#studioPreview {
  width: 100%;
  max-height: 360px;
}

.studio-track-title {
  font-size: 0.78rem;
  font-weight: 700;
  color: #4d6486;
}

.studio-timeline {
  border: 1px solid #cadcf2;
  border-radius: 12px;
  padding: 10px;
  background: linear-gradient(180deg, #f7fbff 0%, #eef5ff 100%);
  display: flex;
  gap: 8px;
  overflow-x: auto;
}

.studio-timeline.drop-active {
  border-color: #5a9de0;
  box-shadow: inset 0 0 0 1px rgba(90, 157, 224, 0.35);
  background: linear-gradient(180deg, #f1f8ff 0%, #e8f2ff 100%);
}

.studio-clip {
  min-width: 210px;
  border-radius: 10px;
  border: 1px solid #c6d8ef;
  background: #ffffff;
  padding: 8px;
  display: grid;
  gap: 6px;
  cursor: pointer;
  position: relative;
}

.studio-clip[draggable="true"] {
  cursor: grab;
}

.studio-clip.dragging {
  opacity: 0.45;
}

.studio-clip .top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.studio-clip .delete {
  border: 0;
  border-radius: 6px;
  background: #e85d5d;
  color: #fff;
  font-weight: 700;
  width: 24px;
  height: 24px;
  line-height: 24px;
  padding: 0;
  cursor: pointer;
}

.studio-clip .drag {
  color: #7891b4;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.studio-clip.active {
  border-color: #4d97df;
  box-shadow: inset 0 0 0 1px rgba(77, 151, 223, 0.35);
}

.studio-clip .name {
  font-size: 0.86rem;
  color: #284264;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.studio-clip .meta {
  font-size: 0.78rem;
  color: #5a7091;
}

.studio-gap {
  min-width: 160px;
  border: 1px solid #c7d9ef;
  border-radius: 10px;
  padding: 8px;
  background: linear-gradient(180deg, #fafdff 0%, #eef5ff 100%);
  display: grid;
  gap: 6px;
  align-self: stretch;
}

.studio-gap label {
  font-size: 0.74rem;
  font-weight: 700;
  color: #4d6486;
}

.studio-gap-icons {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.studio-gap-chip {
  border: 1px solid #bed1ea;
  border-radius: 8px;
  background: #fff;
  color: #36557e;
  font-size: 0.74rem;
  font-weight: 700;
  min-width: 30px;
  padding: 4px 6px;
  cursor: pointer;
}

.studio-gap-chip.active {
  border-color: #2b7fd3;
  background: linear-gradient(135deg, #2f8ce7 0%, #1d5fad 100%);
  color: #fff;
}

.studio-gap .dur {
  font-size: 0.74rem;
  color: #5c7393;
}

.studio-add {
  min-width: 170px;
  border-radius: 10px;
  border: 1px dashed #8bb1da;
  background: linear-gradient(180deg, #f8fcff 0%, #ecf4ff 100%);
  color: #1f5a95;
  font-weight: 700;
  cursor: pointer;
  padding: 8px 10px;
}

.overlay-controls {
  display: grid;
  gap: 8px;
}

.overlay-targets {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.overlay-target-btn {
  border: 1px solid #c6d7ee;
  border-radius: 999px;
  background: #fff;
  color: #24395e;
  cursor: pointer;
  padding: 6px 12px;
  font-weight: 700;
}

.overlay-target-btn.active {
  background: linear-gradient(135deg, #0f77d5 0%, #0b4ea5 100%);
  border-color: #0f77d5;
  color: #fff;
}

.color-preview {
  display: grid;
  gap: 10px;
}

.meme-preview {
  display: grid;
  gap: 10px;
}

#color-preview-video,
#color-preview-canvas,
#meme-preview-video,
#meme-preview-canvas {
  width: auto;
  max-width: 100%;
  max-height: 320px;
  border-radius: 10px;
  border: 1px solid #b6cae3;
  background: #000;
  display: block;
  margin: 0 auto;
}

#meme-preview-canvas {
  box-shadow: 0 10px 24px rgba(21, 48, 92, 0.12);
}

.overlay-row {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: 8px;
  align-items: center;
}

.overlay-row label {
  display: flex;
  gap: 8px;
  align-items: center;
  font-weight: 600;
}

.overlay-markers {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.overlay-marker {
  position: absolute;
  transform: translate(-50%, -50%);
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 0.8rem;
  background: rgba(17, 30, 53, 0.82);
  color: #fff;
  border: 1px solid rgba(131, 181, 236, 0.45);
  cursor: move;
  user-select: none;
  pointer-events: auto;
}

.overlay-marker.active {
  background: rgba(15, 119, 213, 0.9);
  border-color: rgba(171, 214, 255, 0.95);
  box-shadow: 0 0 0 2px rgba(15, 119, 213, 0.18);
}

.merge-timeline {
  min-height: 46px;
  border: 1px solid #c8d7ed;
  border-radius: 9px;
  background: #f3f8ff;
  padding: 8px;
  display: flex;
  gap: 6px;
  align-items: center;
  overflow-x: auto;
}

.merge-seg {
  min-width: 70px;
  height: 24px;
  border-radius: 6px;
  background: linear-gradient(180deg, #3390e6 0%, #0f77d5 100%);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 0.75rem;
  font-weight: 600;
  flex: 1 0 auto;
}

.merge-trans {
  width: 12px;
  height: 12px;
  border-radius: 2px;
  background: #f39b48;
  flex: 0 0 auto;
}

.merge-trans-palette {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.trans-chip {
  border: 1px solid #c8d7ec;
  border-radius: 7px;
  background: #fff;
  color: #2a3b5d;
  padding: 5px 8px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
}

.trans-chip.active {
  background: #1f89e1;
  border-color: #1f89e1;
  color: #fff;
}

.merge-slot-list,
.merge-order-list {
  display: grid;
  gap: 6px;
}

.merge-slot,
.merge-order-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
  background: #edf3fd;
  border: 1px solid #d5e2f3;
  border-radius: 8px;
  padding: 8px;
  font-size: 0.86rem;
  color: #274068;
}

.merge-order-actions {
  display: flex;
  gap: 6px;
}

.merge-order-actions button,
.next-tool-btn {
  border: 1px solid #c6d7ee;
  border-radius: 7px;
  background: #fff;
  color: #24395e;
  cursor: pointer;
  padding: 4px 8px;
  font-weight: 600;
}

.next-tool-btn:hover,
.merge-order-actions button:hover {
  border-color: #75b1ea;
  background: #eef6ff;
}

#submit-btn {
  border: 0;
  border-radius: 11px;
  background: linear-gradient(135deg, #0f77d5 0%, #0b4ea5 100%);
  color: #fff;
  padding: 12px 16px;
  font-size: 0.98rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  cursor: pointer;
  box-shadow: 0 10px 20px rgba(15, 119, 213, 0.28);
}

#submit-btn:hover {
  filter: brightness(1.04);
}

#submit-btn:disabled {
  opacity: 0.62;
  cursor: not-allowed;
}

.status {
  margin-top: 14px;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid transparent;
  font-weight: 700;
}

.status.idle {
  background: #edf2f9;
  border-color: #d9e3f2;
}

.status.waiting {
  background: #fff2d7;
  border-color: #f1d18b;
  color: var(--wait);
}

.status.done {
  background: #dcf5e2;
  border-color: #a8e3b5;
  color: var(--ok);
}

.status.failed {
  background: #ffe0e0;
  border-color: #f0bbbb;
  color: var(--err);
}

.details {
  margin-top: 12px;
  color: #2a3d63;
}

.result {
  margin-top: 16px;
  display: grid;
  gap: 10px;
}

.result-note {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.91rem;
}

.download-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  min-height: 40px;
  padding: 9px 14px;
  border-radius: 9px;
  border: 1px solid #0f77d5;
  background: linear-gradient(135deg, #0f77d5 0%, #0b4ea5 100%);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  box-shadow: 0 8px 16px rgba(15, 119, 213, 0.24);
}

.download-btn:hover {
  filter: brightness(1.04);
}

#player-image {
  width: min(100%, 780px);
  margin: 0 auto;
  border-radius: 12px;
  background: #fff;
  border: 1px solid #b7cbe5;
  display: block;
}

.video-frame {
  width: min(100%, 780px);
  margin: 0 auto;
  border-radius: 12px;
  background: #000;
  overflow: hidden;
  border: 1px solid #b7cbe5;
}

.video-frame.frame-16-9 {
  aspect-ratio: 16 / 9;
}

.video-frame.frame-9-16 {
  aspect-ratio: 9 / 16;
  max-width: 420px;
}

video {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
  background: #000;
}

audio { width: 100%; }

.next-tools {
  margin-top: 8px;
  padding-top: 10px;
  border-top: 1px solid #dce6f4;
}

.next-tools h3 {
  margin: 0 0 8px;
  font-size: 1.03rem;
  color: #1f3458;
}

.next-tools-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.next-tool-btn {
  border-radius: 999px;
  padding: 7px 12px;
  white-space: nowrap;
}

.error {
  margin-top: 12px;
  padding: 12px;
  border-radius: 10px;
  background: #ffe2e2;
  border: 1px solid #f1b8b8;
  color: var(--err);
  white-space: pre-wrap;
}

.tool-history {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid #dce6f4;
}

.tool-history h2 {
  margin: 0;
  font-size: 1.05rem;
  color: #1f3458;
}

#tool-history-note {
  display: block;
  margin-top: 6px;
  color: #5b6f92;
}

.tool-history-list {
  margin-top: 10px;
  display: grid;
  gap: 8px;
}

.tool-history-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  background: #edf3fd;
  border: 1px solid #d5e2f3;
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 0.88rem;
  color: #274068;
}

.tool-history-item .meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tool-history-item .status {
  margin: 0;
  padding: 2px 7px;
  font-size: 0.74rem;
  border-radius: 999px;
  min-width: 0;
}

.tool-history-item .actions {
  display: flex;
  gap: 6px;
}

.retention-note {
  margin: 12px 0 0;
  font-size: 0.84rem;
  color: #5d7091;
}

.hidden { display: none !important; }

@media (max-width: 900px) {
  .overlay-row {
    grid-template-columns: 1fr;
  }

  .form.tool-meme {
    grid-template-columns: 1fr;
  }

  .form.tool-color {
    grid-template-columns: 1fr;
  }

  .form.tool-meme .meme-control,
  .form.tool-meme .meme-preview-field,
  .form.tool-meme .field[data-for="video"],
  .form.tool-meme .field[data-for="image"],
  .form.tool-meme .field[data-for="audio"],
  .form.tool-meme .field[data-for="bgm"],
  .form.tool-meme .field[data-for="bgmVolume"] {
    grid-column: 1;
    grid-row: auto;
    position: static;
  }

  .form.tool-color .field[data-for="video"],
  .form.tool-color .field[data-for="colorBrightness"],
  .form.tool-color .field[data-for="colorContrast"],
  .form.tool-color .field[data-for="colorSaturation"],
  .form.tool-color .field[data-for="colorGamma"],
  .form.tool-color .field[data-for="colorHue"],
  .form.tool-color .field[data-for="colorPreview"] {
    grid-column: 1;
    grid-row: auto;
    position: static;
  }

  .ramp-custom-row {
    grid-template-columns: 1fr;
  }

  .studio-editor {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 700px) {
  .page {
    padding: 26px 14px 28px;
  }

  h1 {
    font-size: clamp(1.9rem, 9vw, 2.6rem);
  }

  .tool-wrap {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .tool-btn {
    min-height: 95px;
    padding: 10px 8px;
  }

  .tool-btn .label {
    font-size: 0.9rem;
  }

  .workbench {
    padding: 12px;
    border-radius: 14px;
  }

  .tool-search input[type="search"] {
    border-radius: 12px;
  }
}