/*
 * SPDX-License-Identifier: AGPL-3.0-or-later
 *
 * Additional attribution notice under AGPL-3.0-or-later section 7(b):
 *
 * Modified versions must preserve the following author attribution in the
 * source code notices and in the interactive web tool's legal notice/footer
 * or an equivalent "About / Credits" area:
 *
 * ©2026 - MarTinX (https://github.com/martinx72) /
 * Retro Game Restore (https://retrogamerestore.com/)
 */

:root {
  color-scheme: light;
  --bg: #eef7ff;
  --panel: #fbfdff;
  --ink: #142433;
  --muted: #587086;
  --line: #bfd8ec;
  --accent: #1b72b8;
  --accent-2: #7bbdec;
  --accent-soft: rgba(123, 189, 236, 0.22);
  --danger: #b22c3a;
  --code: #e9f4ff;
  --field: #ffffff;
  --panel-bg: color-mix(in srgb, var(--panel) 92%, white);
  --shell-bg: rgba(251, 253, 255, 0.66);
  --tab-strip-bg:
    linear-gradient(180deg, rgba(255, 255, 255, 0.86), rgba(191, 216, 236, 0.32)),
    rgba(233, 244, 255, 0.78);
  --tab-bg: rgba(255, 255, 255, 0.66);
  --effect-bg: rgba(233, 244, 255, 0.66);
  --drop-bg: rgba(123, 189, 236, 0.16);
  --shadow: rgba(40, 91, 130, 0.13);
  --footer-bg: rgba(251, 253, 255, 0.92);
  --body-bg:
    radial-gradient(circle at 12% 8%, rgba(123, 189, 236, 0.30), transparent 30%),
    radial-gradient(circle at 82% 0%, rgba(27, 114, 184, 0.13), transparent 28%),
    linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #101315;
  --panel: #191d1e;
  --ink: #eef8ff;
  --muted: #aab9c8;
  --line: #3a4758;
  --accent: #ff725c;
  --accent-2: #a9dcff;
  --accent-soft: rgba(169, 220, 255, 0.16);
  --danger: #ff8a7a;
  --code: #222834;
  --field: #111722;
  --panel-bg: color-mix(in srgb, var(--panel) 88%, #1f2635);
  --shell-bg: rgba(18, 21, 20, 0.78);
  --tab-strip-bg:
    linear-gradient(180deg, rgba(169, 220, 255, 0.12), rgba(144, 107, 255, 0.09)),
    rgba(17, 20, 25, 0.88);
  --tab-bg: rgba(28, 34, 44, 0.72);
  --effect-bg: rgba(34, 40, 52, 0.82);
  --drop-bg: rgba(255, 114, 92, 0.13);
  --shadow: rgba(0, 0, 0, 0.36);
  --footer-bg: rgba(17, 20, 19, 0.92);
  --body-bg:
    radial-gradient(circle at 12% 8%, rgba(169, 220, 255, 0.16), transparent 30%),
    radial-gradient(circle at 72% 2%, rgba(144, 107, 255, 0.16), transparent 25%),
    radial-gradient(circle at 88% 14%, rgba(255, 114, 92, 0.12), transparent 28%),
    linear-gradient(180deg, #141019 0%, var(--bg) 100%);
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  padding-bottom: 58px;
  color: var(--ink);
  background: var(--body-bg);
  font-family: "Aptos", "Noto Sans TC", "Segoe UI", sans-serif;
}

main {
  max-width: 1260px;
  margin: 0 auto;
  padding: 32px 20px 48px;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1,
h2,
h3 {
  letter-spacing: -0.03em;
}

h1 {
  margin-top: 6px;
  margin-bottom: 6px;
  font-size: clamp(2.1rem, 3.vw, 4.8rem);
  line-height: 0.94;
}

h2 {
  margin-bottom: 8px;
  font-size: 1.12rem;
}

h3 {
  margin-bottom: 6px;
  font-size: 0.9rem;
}

p {
  color: var(--muted);
  line-height: 1.5;
}

code,
pre {
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
}

code {
  padding: 2px 6px;
  border-radius: 6px;
  background: var(--code);
}

.hero {
  margin-bottom: 24px;
}

.hero-note {
  font-weight: 800;
}

.hero-note a {
  color: var(--accent);
  text-decoration: none;
}

.hero-note a:hover {
  text-decoration: underline;
}

.panel {
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--panel-bg);
  box-shadow: 0 22px 60px var(--shadow);
}

.setup {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 240px;
  gap: 16px;
  align-items: center;
  margin-bottom: 18px;
  padding: 18px;
}

.setup pre {
  grid-column: 1 / -1;
  min-height: 120px;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(280px, 0.82fr) minmax(420px, 1.18fr);
  gap: 18px;
}

.games,
.preview-panel {
  padding: 18px;
}

.panel-head {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 14px;
}

label {
  display: block;
  margin-bottom: 8px;
  color: var(--ink);
  font-weight: 800;
}

input,
select,
textarea,
button {
  font: inherit;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--field);
  color: var(--ink);
}

input,
textarea {
  padding: 12px;
}

textarea {
  resize: vertical;
}

select {
  min-height: 480px;
  margin-top: 12px;
  padding: 8px;
}

option {
  padding: 8px 10px;
}

button {
  border: 0;
  border-radius: 999px;
  padding: 12px 18px;
  background: var(--accent);
  color: white;
  cursor: pointer;
  font-weight: 800;
  white-space: nowrap;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.tab-shell {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--shell-bg);
  box-shadow: 0 22px 60px var(--shadow);
}

.tab-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  align-items: flex-end;
  min-height: 58px;
  padding: 10px 12px 0;
  border-bottom: 1px solid var(--line);
  background: var(--tab-strip-bg);
}

.tab {
  position: relative;
  min-width: 180px;
  border: 1px solid transparent;
  border-bottom: 0;
  border-radius: 16px 16px 0 0;
  padding: 13px 22px 14px;
  background: var(--tab-bg);
  color: var(--muted);
  box-shadow: inset 0 -10px 18px var(--shadow);
}

.tab.active {
  z-index: 1;
  border-color: var(--line);
  background: var(--panel);
  color: var(--accent);
  box-shadow: 0 -6px 18px var(--shadow);
  transform: translateY(1px);
}

.tab-page {
  padding: 18px;
  background: var(--panel);
}

.tab-panel {
  display: none;
}

.tab-panel[hidden] {
  display: none !important;
}

.tab-panel.active {
  display: block;
}

.ghost-button {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--accent);
}

.ar-workspace {
  grid-template-columns: minmax(360px, 0.86fr) minmax(420px, 1.14fr);
}

.ar-form,
.editor-form,
.editor-save-panel,
.editor-panel {
  padding: 18px;
}

.editor-side-stack {
  display: grid;
  gap: 18px;
  align-content: start;
}

.editor-workspace {
  grid-template-columns: minmax(280px, 0.55fr) minmax(520px, 1.45fr);
}

.id-workspace {
  grid-template-columns: minmax(360px, 0.95fr) minmax(420px, 1.05fr);
}

.editor-file-drop {
  margin-bottom: 16px;
}

.dsl-textarea {
  min-height: 500px;
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  line-height: 1.45;
}

.small-textarea {
  min-height: 104px;
  margin-bottom: 16px;
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  line-height: 1.45;
}

.effect-head,
.effect-title {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
}

.effect-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.effect-head {
  margin: 8px 0 12px;
}

.effect-title label {
  margin-bottom: 0;
}

.effects {
  display: grid;
  gap: 14px;
}

.effect-row {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--effect-bg);
}

.group-header-row {
  border-style: dashed;
  background: color-mix(in srgb, var(--effect-bg) 72%, var(--accent-soft));
}

.effect-row input {
  margin-bottom: 12px;
}

.effect-meta {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.effect-meta label {
  margin-bottom: 0;
}

pre {
  margin: 0;
  padding: 14px;
  border-radius: 14px;
  background: var(--code);
  overflow: auto;
  color: var(--ink);
  font-size: 0.92rem;
  line-height: 1.45;
}

#ar-preview,
#editor-preview,
#retro-preview,
  #psk-preview {
    min-height: 360px;
    max-height: 480px;
    margin-top: 16px;
    overflow: auto;
  }

#editor-preview,
#retro-preview {
  min-height: 116px;
}

.menu-preview-block {
  margin-top: 16px;
}

.menu-preview-block p {
  margin-bottom: 10px;
  font-size: 0.86rem;
}

.menu-preview {
  border-radius: 14px;
  background: #050708;
  color: #dfe7e5;
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  box-shadow: inset 0 0 0 2px #cfd7d5;
}

.menu-preview-frame {
  min-height: 270px;
  padding: 14px;
}

.menu-preview-title {
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid #67706e;
  color: #f4f7f5;
  font-size: 0.94rem;
}

.menu-preview-list {
  display: grid;
  gap: 2px;
  align-content: start;
  min-height: 314px;
}

.menu-preview-row {
  display: flex;
  gap: 8px;
  align-items: center;
  height: 24px;
  margin: 0;
  padding: 3px 6px;
  border-radius: 3px;
  color: #e2e8e6;
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
}

.menu-preview-row:hover {
  background: #243331;
}

.menu-preview-row.group {
  margin-top: 5px;
  color: #8faaa4;
  cursor: default;
}

.menu-preview-row.group:hover {
  background: transparent;
}

.menu-preview-row input {
  width: auto;
  margin: 0;
  accent-color: #dfe7e5;
}

.menu-preview-empty {
  padding: 16px;
  color: #8faaa4;
}

.menu-preview-pager {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid #67706e;
  color: #8faaa4;
  font-size: 0.82rem;
  text-align: center;
}

.menu-preview-pager button {
  border: 1px solid #67706e;
  padding: 6px 12px;
  background: #111716;
  color: #dfe7e5;
  font-family: inherit;
  font-size: 0.82rem;
}

.id-detail {
  display: grid;
  gap: 12px;
}

.id-detail h3 {
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  line-height: 1.35;
}

.id-detail-row {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--effect-bg);
}

.id-detail-row > span:first-child {
  color: var(--muted);
  font-weight: 800;
}

.id-detail-value,
.id-copy-button {
  min-width: 0;
  overflow-wrap: anywhere;
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
}

.id-copy-button {
  width: fit-content;
  max-width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px 12px;
  background: var(--field);
  color: var(--accent);
  text-align: left;
}

.file-drop {
  display: grid;
  min-height: 88px;
  margin: 0;
  place-items: center;
  border: 1px dashed var(--accent);
  border-radius: 18px;
  background: var(--drop-bg);
  color: var(--accent);
  cursor: pointer;
  text-align: center;
  transition: border-color 0.16s ease, background 0.16s ease, transform 0.16s ease;
}

.file-drop.drag-over {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent-2) 28%, transparent);
  transform: translateY(-1px);
}

.file-drop span {
  font-weight: 900;
}

.file-drop input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.toggle {
  display: flex;
  gap: 8px;
  align-items: center;
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  white-space: nowrap;
}

.toggle input {
  width: auto;
}

.save-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
}

.status {
  margin-top: 12px;
  color: var(--accent);
  font-weight: 800;
}

.status.error {
  color: var(--danger);
}

.floating-controls {
  position: fixed;
  top: 18px;
  right: 18px;
  z-index: 30;
  display: flex;
  gap: 10px;
  align-items: center;
}

.language-select,
.theme-toggle {
  height: 44px;
  border: 1px solid var(--line);
  background: var(--panel-bg);
  color: var(--accent);
  box-shadow: 0 12px 32px var(--shadow);
  backdrop-filter: blur(10px);
}

.language-select {
  width: auto;
  min-height: 0;
  margin: 0;
  border-radius: 999px;
  padding: 0 14px;
  font-weight: 800;
}

.theme-toggle {
  width: 44px;
  padding: 0;
}

.site-footer {
  position: fixed;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 20;
  border-top: 1px solid var(--line);
  background: var(--footer-bg);
  box-shadow: 0 -12px 36px var(--shadow);
  backdrop-filter: blur(10px);
}

.site-footer p {
  max-width: 1260px;
  margin: 0 auto;
  padding: 12px 20px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 800;
  text-align: center;
}

.site-footer a {
  color: var(--accent);
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

@media (max-width: 920px) {
  .setup,
  .workspace,
  .save-row {
    grid-template-columns: 1fr;
  }

  select,
  #ar-preview,
  #editor-preview,
  #retro-preview,
  #psk-preview {
    min-height: 360px;
  }

  .dsl-textarea {
    min-height: 360px;
  }

  .floating-controls {
    top: 10px;
    right: 10px;
  }

  .language-select,
  .theme-toggle {
    height: 40px;
  }
}