/* usesuno.com — appearance system and light theme */

:root {
  --heading: #fff;
  --overlay-rgb: 255, 255, 255;
  --shadow-rgb: 0, 0, 0;
  --page-bg:
    radial-gradient(circle at top center, rgba(148, 229, 113, 0.12), transparent 26%),
    radial-gradient(circle at 20% 20%, rgba(99, 102, 241, 0.12), transparent 30%),
    linear-gradient(180deg, #09090b 0%, #070708 45%, #050507 100%);
  --page-grid: rgba(var(--overlay-rgb), 0.025);
  --page-vignette: radial-gradient(circle at center, transparent 0%, rgba(7, 7, 8, 0.12) 58%, rgba(7, 7, 8, 0.68) 100%);
  --nav-solid: rgba(7, 7, 8, 0.82);
  --nav-mobile: rgb(10 10 12);
  --nav-scrim: rgba(7, 7, 8, 0.46);
  --control-bg: rgba(15, 15, 18, 0.96);
  --control-hover: rgba(var(--overlay-rgb), 0.08);
  --input-bg: rgba(20, 20, 26, 0.82);
  --code-bg: rgba(0, 0, 0, 0.35);
  --focus-ring: rgba(148, 229, 113, 0.22);
  --soft-shadow: 0 18px 48px rgba(0, 0, 0, 0.28);
}

html[data-theme="light"] {
  --bg-dark: #f5f6f8;
  --bg-elevated: #ffffff;
  --card-bg: rgb(255 255 255 / 0.76);
  --card-border: rgba(15, 20, 28, 0.10);
  --text-main: #1a1e24;
  --text-muted: #5a6169;
  --text-dim: #6e757d;
  --heading: #14171c;
  --accent: #397d2d;
  --accent-soft: rgba(57, 125, 45, 0.11);
  --accent-grad: linear-gradient(135deg, #4d963b 0%, #2f6f45 100%);
  --link: #2f7526;
  --success: #26763a;
  --accent-text: #2f7526;
  --guide-accent: #256b52;
  --info-text: #285f8f;
  --info-text-hover: #194b76;
  --danger-text: #a33235;
  --success-text: #246b36;
  --warning-text: #80500a;
  --code-text: #3d434b;
  --overlay-rgb: 15, 20, 28;
  --shadow-rgb: 15, 20, 28;
  --page-bg:
    radial-gradient(circle at 50% -10%, rgba(99, 102, 241, 0.07), transparent 31rem),
    radial-gradient(circle at 12% 22%, rgba(15, 20, 28, 0.03), transparent 27rem),
    linear-gradient(180deg, #fbfcfd 0%, #f5f6f8 48%, #eef0f3 100%);
  --page-grid: rgba(15, 20, 28, 0.04);
  --page-vignette: radial-gradient(circle at center, transparent 30%, rgba(15, 20, 28, 0.03) 76%, rgba(15, 20, 28, 0.07) 100%);
  --nav-solid: rgba(250, 251, 252, 0.86);
  --nav-mobile: rgb(250 251 252);
  --nav-scrim: rgba(15, 20, 28, 0.26);
  --control-bg: rgb(255 255 255 / 0.97);
  --control-hover: rgba(15, 20, 28, 0.05);
  --input-bg: rgb(255 255 255 / 0.84);
  --code-bg: rgba(15, 20, 28, 0.045);
  --focus-ring: rgba(57, 125, 45, 0.18);
  --soft-shadow: 0 18px 48px rgba(15, 20, 28, 0.10);
}

body {
  background: var(--page-bg);
}

body::before {
  background:
    linear-gradient(var(--page-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--page-grid) 1px, transparent 1px);
}

body::after {
  background: var(--page-vignette);
}

.site-nav.is-scrolled {
  background: var(--nav-solid);
}

@media (max-width: 1150px) {
  .nav-links {
    background: var(--nav-mobile);
  }
}

/* —— Appearance control —— */
.theme-control {
  position: relative;
  display: inline-flex;
  align-items: center;
  margin-left: 4px;
}

.theme-control__trigger {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 1px solid var(--card-border);
  border-radius: 10px;
  background: var(--card-bg);
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.18s ease, background-color 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}

.theme-control__trigger:hover,
.theme-control__trigger[aria-expanded="true"] {
  color: var(--heading);
  border-color: rgba(var(--overlay-rgb), 0.22);
  background: var(--control-hover);
}

.theme-control__trigger:active {
  transform: translateY(1px);
}

.theme-control__trigger:focus-visible,
.theme-choice:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.theme-control__glyph {
  position: relative;
  width: 16px;
  height: 16px;
  overflow: hidden;
  border: 1.5px solid currentColor;
  border-radius: 50%;
}

.theme-control__glyph::after {
  content: "";
  position: absolute;
  inset: 2px 2px 2px 50%;
  border-radius: 0 999px 999px 0;
  background: currentColor;
}

.theme-menu {
  position: absolute;
  top: calc(100% + 9px);
  right: 0;
  z-index: 240;
  display: grid;
  width: 170px;
  padding: 6px;
  border: 1px solid var(--card-border);
  border-radius: 12px;
  background: var(--control-bg);
  box-shadow: var(--soft-shadow);
  backdrop-filter: var(--glass-blur);
}

.theme-menu[hidden] {
  display: none;
}

.theme-choice {
  display: grid;
  grid-template-columns: 20px 1fr 16px;
  gap: 9px;
  align-items: center;
  width: 100%;
  min-height: 38px;
  padding: 7px 9px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--text-muted);
  text-align: left;
  cursor: pointer;
}

.theme-choice:hover {
  color: var(--heading);
  background: var(--control-hover);
}

.theme-choice[aria-checked="true"] {
  color: var(--heading);
  background: var(--accent-soft);
}

.theme-choice__icon {
  display: grid;
  place-items: center;
  color: var(--accent);
  font: 700 0.68rem/1 var(--mono);
}

.theme-choice__label {
  font-size: 0.82rem;
  font-weight: 600;
}

.theme-choice__check {
  opacity: 0;
  color: var(--accent);
  font-size: 0.8rem;
}

.theme-choice[aria-checked="true"] .theme-choice__check {
  opacity: 1;
}

@media (max-width: 900px) {
  .theme-control {
    justify-content: flex-end;
    margin: 8px 0 0;
    padding: 10px 12px 0;
    border-top: 1px solid var(--card-border);
  }

  .theme-control__trigger {
    width: 100%;
    grid-template-columns: 18px 1fr;
    justify-items: start;
    gap: 10px;
    padding: 0 12px;
  }

  .theme-control__trigger::after {
    content: attr(data-label);
    font-size: 0.82rem;
    font-weight: 600;
  }

  .theme-menu {
    top: calc(100% + 6px);
    left: 12px;
    right: 12px;
    width: auto;
  }
}

/* —— Light surfaces —— */
html[data-theme="light"] :where(h1, h2, h3, h4, h5, h6) {
  color: var(--heading) !important;
}

html[data-theme="light"] main strong {
  color: var(--heading);
}

html[data-theme="light"] main summary {
  color: var(--heading) !important;
}

html[data-theme="light"] :where(.logo, .logo:hover, a:hover) {
  color: var(--heading);
}

html[data-theme="light"] .nav-toggle-bar {
  background: var(--heading);
}

html[data-theme="light"] .nav-links a:hover,
html[data-theme="light"] .nav-links a.active {
  color: var(--heading);
  background: rgba(var(--overlay-rgb), 0.055);
}

html[data-theme="light"] .hero::before {
  background:
    radial-gradient(ellipse 80% 52% at 50% -18%, rgba(99, 102, 241, 0.08), transparent 56%),
    radial-gradient(circle at 20% 0%, rgba(15, 20, 28, 0.04), transparent 30%);
}

html[data-theme="light"] .hero::after {
  background: linear-gradient(90deg, transparent, rgba(var(--overlay-rgb), 0.14), transparent);
}

html[data-theme="light"] .hero-panel {
  border-color: var(--card-border);
  background: linear-gradient(180deg, rgb(255 255 255 / 0.82), rgba(250, 251, 252, 0.66));
  box-shadow: 0 28px 80px rgba(var(--shadow-rgb), 0.13);
}

html[data-theme="light"] .hero-panel::before {
  background: linear-gradient(120deg, rgb(255 255 255 / 0.72), transparent 28%, transparent 72%, rgba(15, 20, 28, 0.03));
}

html[data-theme="light"] .hero h1 {
  background: linear-gradient(180deg, #14171c 0%, #2a2f36 44%, #565b63 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

html[data-theme="light"] .hero p {
  color: var(--text-muted);
}

html[data-theme="light"] :where(.hero-card, .hero-metric, .hero-proof .tag) {
  border-color: var(--card-border);
  background: rgba(var(--overlay-rgb), 0.035);
  box-shadow: inset 0 1px 0 rgb(255 255 255 / 0.72);
}

html[data-theme="light"] :where(.hero-signal-list li, .hero-outcome-list li) {
  color: var(--text-main);
}

html[data-theme="light"] :where(.hero-signal-list li, .hero-outcome-list li)::before {
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

html[data-theme="light"] :where(
  .tool-input-wrap,
  .ps-input-wrap,
  .dl-input-wrap,
  .playlist-input-wrap,
  .builder-panel,
  .tool-card,
  .tool-panel,
  .tool-optpanel,
  .diff-panel,
  .style-card
) {
  background: var(--input-bg);
  border-color: var(--card-border);
  box-shadow: var(--soft-shadow);
}

html[data-theme="light"] :where(.tool-card-label, .tool-toggle, .tool-toggle span) {
  color: var(--text-muted);
}

html[data-theme="light"] .tool-toggle span {
  color: var(--text-muted) !important;
}

html[data-theme="light"] :where(.dl-form textarea, .ps-form textarea) {
  color: var(--text-main);
}

html[data-theme="light"] :where(.tool-input-wrap, .dl-input-wrap, .ps-input-wrap):focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--focus-ring), var(--soft-shadow);
}

html[data-theme="light"] :where(
  pre,
  .prompt-text,
  .code-block,
  .tool-output,
  .result-box,
  .example-code
) {
  background: var(--code-bg);
  border-color: var(--card-border);
  color: var(--text-main);
}

html[data-theme="light"] :where(input, textarea, select) {
  color: var(--text-main);
}

html[data-theme="light"] :where(
  input[type="text"],
  input[type="search"],
  input[type="url"],
  input[type="email"],
  select
) {
  border-color: var(--card-border) !important;
  background-color: var(--input-bg) !important;
}

html[data-theme="light"] :where(input, textarea)::placeholder {
  color: var(--text-dim);
  opacity: 1;
}

html[data-theme="light"] :where(input, textarea, select):focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--focus-ring);
}

/* Composite tool inputs are one control: focus the shell, not its inner field. */
html[data-theme="light"] :where(.tool-input-wrap, .dl-input-wrap, .ps-input-wrap)
  > :where(input[type="text"], input[type="search"], input[type="url"], textarea) {
  border-color: transparent !important;
  background-color: transparent !important;
}

html[data-theme="light"] :where(.tool-input-wrap, .dl-input-wrap, .ps-input-wrap)
  > :where(input[type="text"], input[type="search"], input[type="url"], textarea):focus {
  box-shadow: none;
}

/* Textarea tools use the full editor card as their focus boundary. */
html[data-theme="light"] .tool-card:has(.tool-card-body textarea:focus) {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--focus-ring), var(--soft-shadow);
}

html[data-theme="light"] .tool-card-body textarea:focus {
  box-shadow: none;
}

/* Style prompt cards keep their light surface when the inline dark hover rule runs. */
html[data-theme="light"] .style-card {
  background: var(--input-bg);
  border-color: var(--card-border);
  box-shadow:
    0 14px 34px rgba(15, 20, 28, 0.07),
    inset 0 1px 0 rgb(255 255 255 / 0.82);
}

html[data-theme="light"] .style-card.is-interactive:hover,
html[data-theme="light"] .style-card.is-interactive:focus-visible {
  border-color: rgba(57, 125, 45, 0.30);
  background:
    linear-gradient(145deg, rgba(57, 125, 45, 0.07), transparent 52%),
    rgb(255 255 255 / 0.96);
  box-shadow:
    0 18px 42px rgba(15, 20, 28, 0.10),
    inset 0 1px 0 rgb(255 255 255 / 0.94);
}

html[data-theme="light"] .styles-wide-section .prompt-text {
  border-color: var(--card-border);
  background: var(--code-bg);
  box-shadow: inset 0 1px 0 rgb(255 255 255 / 0.62);
  color: var(--code-text);
}

/* White actions belong to the dark theme; light mode needs a clear primary action. */
html[data-theme="light"] :where(.tool-btn-primary, .dl-btn-primary, .ps-btn-primary) {
  border-color: #2f6f45;
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 8px 20px rgba(15, 20, 28, 0.16);
}

html[data-theme="light"] :where(.tool-btn-primary, .dl-btn-primary, .ps-btn-primary):hover {
  border-color: #285f3c;
  background: #2f6f45;
  color: #ffffff;
  box-shadow: 0 10px 24px rgba(15, 20, 28, 0.20);
}

/* Primary action links use a white hover surface in dark mode. Keep their
   text dark so the global anchor hover color cannot erase the contrast. */
html:not([data-theme="light"]) :where(.tool-btn-primary, .dl-btn-primary, .ps-btn-primary):hover {
  color: #09090b;
}

/* Playlist summaries use the playlist artwork when available, with the first
   track cover supplied by the page as a fallback. */
.pl-page .song-hero {
  min-height: 0;
  margin: 18px 0 14px;
  padding: 18px;
  border-radius: 18px;
  background:
    radial-gradient(circle at 0 0, rgba(148, 229, 113, 0.08), transparent 52%),
    linear-gradient(180deg, rgba(20, 20, 24, 0.94), rgba(12, 12, 15, 0.96));
}

.pl-page .song-hero::after {
  background: linear-gradient(115deg, rgba(var(--overlay-rgb), 0.035), transparent 62%);
}

.pl-page .song-hero-cover {
  display: block;
  width: 112px;
  height: 112px;
  border-radius: 12px;
  box-shadow: 0 14px 32px rgba(15, 20, 28, 0.22), 0 0 0 1px rgba(var(--overlay-rgb), 0.08);
}

.pl-page .song-hero-top {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
}

.pl-page .song-hero-body {
  min-width: 0;
  padding-right: 112px;
}

.pl-page .song-hero-title {
  max-width: 24ch;
  margin-bottom: 10px;
  font-size: clamp(1.45rem, 4vw, 1.8rem);
  text-wrap: balance;
}

.pl-page .song-hero-artist {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 5px 10px;
  border: 1px solid rgba(var(--overlay-rgb), 0.10);
  border-radius: 8px;
  background: rgba(var(--overlay-rgb), 0.045);
  font-family: var(--mono);
  font-size: 0.74rem;
  font-variant-numeric: tabular-nums;
}

@media (max-width: 560px) {
  .pl-page .song-hero {
    margin: 16px 0 14px;
    padding: 15px;
    border-radius: 18px;
  }

  .pl-page .song-hero-top {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 12px;
    align-items: start;
    text-align: left;
  }

  .pl-page .song-hero-cover {
    width: 64px;
    height: 64px;
    border-radius: 12px;
    box-shadow: 0 10px 22px rgba(15, 20, 28, 0.18), 0 0 0 1px rgba(var(--overlay-rgb), 0.08);
  }

  .pl-page .song-hero-suno {
    position: static;
    width: fit-content;
    margin: 0 0 18px auto;
  }

  .pl-page .song-hero-body {
    padding-right: 0;
    text-align: left;
  }

  .pl-page .song-hero-title {
    max-width: none;
  }
}

/* Cover-backed results keep the artwork, but become quiet light surfaces. */
html[data-theme="light"] :where(.dl-page, .ps-page, .pl-page) .song-hero {
  color: var(--text-main);
  border-color: rgba(15, 20, 28, 0.10);
  background: #f0f2f5;
  box-shadow: 0 18px 44px rgba(15, 20, 28, 0.10);
}

html[data-theme="light"] :where(.dl-page, .ps-page, .pl-page) .song-hero::before {
  filter: blur(46px) saturate(0.72) brightness(1.08);
  opacity: 0.18;
}

html[data-theme="light"] :where(.dl-page, .ps-page, .pl-page) .song-hero::after {
  background: linear-gradient(180deg, rgba(250, 251, 252, 0.80) 0%, rgba(247, 249, 251, 0.96) 88%);
}

html[data-theme="light"] :where(.dl-page, .ps-page, .pl-page) .song-hero-suno {
  border-color: var(--card-border);
  background: rgb(255 255 255 / 0.72);
  color: var(--text-muted);
}

html[data-theme="light"] .pl-page .song-hero {
  background:
    radial-gradient(circle at 0 0, rgba(99, 102, 241, 0.07), transparent 54%),
    linear-gradient(180deg, rgb(255 255 255 / 0.88), rgb(246 248 250 / 0.94));
}

html[data-theme="light"] .pl-page .song-hero::after {
  background: linear-gradient(115deg, rgba(15, 20, 28, 0.03), transparent 62%);
}

html[data-theme="light"] .pl-page .song-hero-artist {
  border-color: var(--card-border);
  background: var(--accent-soft);
  color: var(--text-muted);
}

/* The parser's lyric sheet should read like paper, not a dark-mode panel. */
html[data-theme="light"] .ps-page .lyric-sheet {
  color: var(--text-main);
  border-color: rgba(15, 20, 28, 0.10);
  background:
    linear-gradient(180deg, rgb(255 255 255 / 0.90), rgb(248 250 252 / 0.94));
  box-shadow:
    0 18px 42px rgba(15, 20, 28, 0.08),
    inset 0 1px 0 rgb(255 255 255 / 0.92);
}

html[data-theme="light"] .ps-page .lyric-sheet::before {
  background: repeating-linear-gradient(
    to right,
    rgba(15, 20, 28, 0.18) 0 6px,
    transparent 6px 12px
  );
}

html[data-theme="light"] .ps-page .lyric-copy {
  border-color: var(--card-border);
  background: rgb(255 255 255 / 0.72);
  color: var(--text-muted);
}

html[data-theme="light"] .ps-page .lyric-copy:hover {
  border-color: rgba(57, 125, 45, 0.34);
  background: var(--accent-soft);
  color: var(--heading);
}

html[data-theme="light"] .ps-page .lyric-section:not(:first-child) {
  border-top-color: rgba(15, 20, 28, 0.10);
}

html[data-theme="light"] .ps-page .lyric-empty {
  color: var(--text-muted);
}

html[data-theme="light"] .dl-page .dl-preview-stack {
  padding: 12px;
  border: 1px solid var(--card-border);
  border-radius: 16px;
  background: rgb(255 255 255 / 0.62);
  box-shadow: 0 14px 34px rgba(15, 20, 28, 0.08);
}

html[data-theme="light"] .dl-page .dl-audio-wrap {
  border-color: var(--card-border);
  background: var(--input-bg);
}

html[data-theme="light"] .dl-page .dl-audio-wrap audio {
  color-scheme: light;
}

html[data-theme="light"] .dl-page .dl-video-wrap {
  border-color: rgba(15, 20, 28, 0.14);
  box-shadow: 0 10px 26px rgba(15, 20, 28, 0.10);
}

html[data-theme="light"] .dl-page .dl-preview-miss {
  border-color: var(--card-border);
  background: var(--code-bg);
}

/* Non-media tool surfaces should follow the light page palette. */
html[data-theme="light"] .pillar-popover {
  background: var(--control-bg);
  border-color: var(--card-border);
  box-shadow: var(--soft-shadow);
}

html[data-theme="light"] .pillar-popover::after {
  border-top-color: var(--control-bg);
}

html[data-theme="light"] .tool-budget-field {
  border-color: var(--card-border);
  background: var(--code-bg);
}

html[data-theme="light"] .tool-budget-field:focus-within {
  border-color: var(--accent);
  background: var(--accent-soft);
}

html[data-theme="light"] .tool-budget input {
  border-color: var(--card-border);
  background: var(--input-bg);
}

html[data-theme="light"] .tool-table-wrap {
  border-color: var(--card-border);
  background: var(--input-bg);
}

html[data-theme="light"] .tool-table th {
  background: var(--control-hover);
}

html[data-theme="light"] .text-diff-page .diff-pane-header.tool-card-head {
  background: var(--control-hover);
}

html[data-theme="light"] .text-diff-page .diff-col-body {
  background: var(--code-bg);
}

html[data-theme="light"] .pl-thumb-fallback {
  background: var(--code-bg);
  color: var(--text-muted);
}

html[data-theme="light"] :where(.card, .guide-card, .tool-card, .article-card, .feature-card, .info-card) {
  border-color: var(--card-border);
}

html[data-theme="light"] .home-tools-grid .card {
  border-color: rgba(15, 20, 28, 0.08);
  background: rgb(255 255 255 / 0.78);
  box-shadow:
    0 12px 30px rgba(15, 20, 28, 0.06),
    inset 0 1px 0 rgb(255 255 255 / 0.86);
}

html[data-theme="light"] .home-tools-grid > .home-tool-card--primary .card {
  border-color: rgba(57, 125, 45, 0.24);
  background:
    linear-gradient(145deg, rgba(57, 125, 45, 0.085), transparent 48%),
    rgb(255 255 255 / 0.88);
}

html[data-theme="light"] .home-tools-grid .card-link:hover .card {
  border-color: rgba(57, 125, 45, 0.25);
  background: rgb(255 255 255 / 0.96);
  box-shadow:
    0 16px 34px rgba(15, 20, 28, 0.09),
    inset 0 1px 0 rgb(255 255 255 / 0.92);
}

html[data-theme="light"] :where(.guide-onboard--primary, .genre-featured-studies) {
  border-color: rgba(57, 125, 45, 0.18);
  background:
    linear-gradient(120deg, rgba(57, 125, 45, 0.07), transparent 46%),
    rgb(255 255 255 / 0.56);
}

html[data-theme="light"] :where(.btn-secondary, .btn-ghost, .tool-secondary) {
  color: var(--heading);
  border-color: var(--card-border);
  background: rgba(var(--overlay-rgb), 0.035);
}

html[data-theme="light"] :where(.toast, #global-toast) {
  background: #14171c;
  color: #f5f7f9;
}

html[data-theme="light"] ::selection {
  background: rgba(57, 125, 45, 0.22);
  color: #0f1216;
}

@media (prefers-reduced-motion: reduce) {
  .theme-control__trigger,
  .theme-choice {
    transition: none;
  }
}