@import url("https://fonts.googleapis.com/css2?family=Newsreader:wght@500;600;700&family=Space+Grotesk:wght@400;500;600;700&family=Noto+Sans+SC:wght@400;500;600;700&family=Noto+Serif+SC:wght@500;600;700&display=swap");

:root {
  --font-body: "Space Grotesk", "Noto Sans SC", sans-serif;
  --font-display: "Newsreader", "Noto Serif SC", serif;
  --bg-base: #f7f2ea;
  --bg-cool: #eef4ff;
  --surface: #ffffff;
  --surface-muted: #f6f4f1;
  --ink: #0f172a;
  --muted: #5b6472;
  --accent: #1d4ed8;
  --accent-strong: #1e40af;
  --accent-warm: #f97316;
  --line: #e2e8f0;
  --line-strong: #cbd5e1;
  --shadow: 0 28px 60px rgba(15, 23, 42, 0.12);
  --shadow-soft: 0 14px 30px rgba(15, 23, 42, 0.08);
  --radius-xl: 28px;
  --radius: 18px;
  --radius-sm: 12px;
  --content-max: 860px;
  --control-size: 40px;
  --control-main: 56px;
  --md-sys-color-primary: var(--accent);
  --md-sys-color-on-primary: #ffffff;
  --md-sys-color-surface: #ffffff;
  --md-sys-color-on-surface: var(--ink);
  --md-sys-color-outline: var(--line-strong);
  --md-sys-color-secondary: var(--accent-warm);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: radial-gradient(circle at 15% 0%, #fef7ed 0%, transparent 40%),
    radial-gradient(circle at 85% 10%, #e7f0ff 0%, transparent 42%),
    linear-gradient(180deg, var(--bg-base), var(--bg-cool));
  min-height: 100vh;
  overflow-x: hidden;
}

.backdrop {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.backdrop::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(15, 23, 42, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 23, 42, 0.04) 1px, transparent 1px);
  background-size: 120px 120px;
  opacity: 0.3;
}

.glow {
  position: absolute;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  filter: blur(40px);
  opacity: 0.18;
  animation: float 18s ease-in-out infinite;
}

.glow-a {
  top: -220px;
  left: -120px;
  background: radial-gradient(circle, rgba(29, 78, 216, 0.35), transparent 70%);
}

.glow-b {
  bottom: -220px;
  right: -120px;
  background: radial-gradient(circle, rgba(249, 115, 22, 0.3), transparent 70%);
  animation-delay: -6s;
}

.app {
  position: relative;
  z-index: 1;
  max-width: 980px;
  margin: 0 auto;
  padding: 56px 24px 72px;
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr) auto auto;
  gap: 24px;
  justify-items: center;
  animation: rise 0.6s ease-out;
}

.hero {
  width: 100%;
  max-width: var(--content-max);
  display: grid;
  gap: 14px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-transform: uppercase;
  letter-spacing: 0.32em;
  font-size: 11px;
  color: var(--muted);
}

.brand-label {
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.9);
}

.brand::after {
  content: "";
  height: 1px;
  flex: 1;
  background: linear-gradient(90deg, var(--line), transparent);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(34px, 5vw, 56px);
  margin: 0;
  letter-spacing: 0.01em;
}

.hero p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  max-width: 640px;
}

.card {
  width: 100%;
  max-width: var(--content-max);
  background: var(--surface);
  border-radius: var(--radius-xl);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: 1px solid rgba(255, 255, 255, 0.6);
  pointer-events: none;
}

.input-card {
  gap: 14px;
}

.input-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: stretch;
}

.input-fields {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: 180px;
  opacity: 1;
  transform: translateY(0);
  transition: max-height 0.3s ease, opacity 0.25s ease, transform 0.2s ease;
}

.input-card.is-collapsed .input-fields {
  max-height: 0;
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
}

.input-card.is-collapsed {
  padding: 14px 20px;
}

label {
  font-weight: 600;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.02em;
}

input[type="url"],
select {
  width: 100%;
  height: 46px;
  padding: 0 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  font-size: 14px;
  background: var(--surface-muted);
  color: var(--ink);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input[type="url"]:focus,
select:focus {
  outline: none;
  border-color: rgba(29, 78, 216, 0.5);
  box-shadow: 0 0 0 3px rgba(29, 78, 216, 0.12);
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

button {
  border: none;
  border-radius: 12px;
  padding: 0 18px;
  height: 46px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease,
    color 0.15s ease;
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

button.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #fff;
  box-shadow: 0 12px 24px rgba(29, 78, 216, 0.25);
}

button.primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 16px 28px rgba(29, 78, 216, 0.32);
}

button.ghost {
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid var(--line);
  color: var(--ink);
}

button.ghost:hover:not(:disabled) {
  background: rgba(29, 78, 216, 0.08);
  border-color: rgba(29, 78, 216, 0.2);
}

.text-btn {
  width: auto;
  height: auto;
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 600;
  background: rgba(29, 78, 216, 0.08);
  color: var(--accent-strong);
  border: 1px solid rgba(29, 78, 216, 0.2);
  border-radius: 999px;
  box-shadow: none;
  white-space: nowrap;
}

.text-btn:hover:not(:disabled) {
  background: rgba(29, 78, 216, 0.16);
}

.input-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--muted);
}

#status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: 12px;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.75);
}

#status[data-tone="error"] {
  color: #9a2a1a;
  border-color: rgba(154, 42, 26, 0.2);
  background: rgba(154, 42, 26, 0.08);
}

#status[data-tone="warn"] {
  color: #7a5200;
  border-color: rgba(122, 82, 0, 0.2);
  background: rgba(122, 82, 0, 0.08);
}

#status[data-tone="ok"] {
  color: var(--accent-strong);
  border-color: rgba(29, 78, 216, 0.2);
  background: rgba(29, 78, 216, 0.08);
}

.article-card {
  padding: 32px 34px;
  box-shadow: var(--shadow);
}

.article-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
}

.article-header h2 {
  font-family: var(--font-display);
  margin: 0 0 6px;
  font-size: 22px;
  letter-spacing: 0.01em;
}

.meta {
  font-size: 12px;
  color: var(--muted);
}

.chip {
  background: rgba(29, 78, 216, 0.08);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 12px;
  height: fit-content;
  color: var(--accent-strong);
  border: 1px solid rgba(29, 78, 216, 0.2);
}

.article-body {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
}

.article-body.lyrics {
  max-height: 360px;
  overflow: auto;
  padding-right: 4px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  scroll-behavior: smooth;
}

.lyric-line {
  font-size: 15px;
  line-height: 1.7;
  color: rgba(15, 23, 42, 0.6);
  opacity: 0.5;
  padding: 6px 10px;
  border-radius: 12px;
  border: 1px solid transparent;
  transition: color 0.25s ease, opacity 0.25s ease, transform 0.25s ease,
    background 0.25s ease, border-color 0.25s ease;
}

.lyric-line.is-empty {
  color: var(--muted);
  opacity: 0.7;
}

.lyric-line.is-prev,
.lyric-line.is-next {
  color: rgba(15, 23, 42, 0.7);
  opacity: 0.7;
}

.lyric-line.is-current {
  color: var(--ink);
  opacity: 1;
  font-size: 16px;
  font-weight: 600;
  background: rgba(29, 78, 216, 0.08);
  border-color: rgba(29, 78, 216, 0.25);
  box-shadow: 0 12px 24px rgba(29, 78, 216, 0.12);
  transform: translateY(-1px);
}

.controls-card {
  padding: 18px 20px 20px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(246, 247, 252, 0.95));
  box-shadow: var(--shadow);
  gap: 14px;
  position: sticky;
  bottom: 24px;
  z-index: 2;
}

.player-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  column-gap: 16px;
  width: 100%;
}

.player-controls {
  grid-column: 2;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 0;
  min-height: var(--control-main);
}

.player-meta {
  grid-column: 3;
  justify-self: end;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.play-toggle {
  position: relative;
  width: var(--control-main);
  height: var(--control-main);
}

md-icon {
  font-family: "Material Symbols Rounded";
  font-weight: 400;
  font-size: 20px;
  line-height: 1;
  display: block;
}

md-fab.transport-main md-icon {
  font-size: 24px;
}

md-outlined-icon-button,
md-icon-button,
md-fab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  vertical-align: middle;
  line-height: 0;
}

md-outlined-icon-button {
  width: var(--control-size);
  height: var(--control-size);
  --md-outlined-icon-button-container-size: var(--control-size);
  --md-outlined-icon-button-icon-size: 20px;
  --md-outlined-icon-button-container-shape: 999px;
  --md-outlined-icon-button-outline-color: var(--line-strong);
  --md-outlined-icon-button-outline-width: 1px;
  --md-outlined-icon-button-icon-color: var(--muted);
}

md-icon-button {
  width: var(--control-size);
  height: var(--control-size);
  --md-icon-button-container-size: var(--control-size);
  --md-icon-button-icon-size: 20px;
  --md-icon-button-icon-color: var(--ink);
}

md-fab.transport-main {
  width: var(--control-main);
  height: var(--control-main);
  --md-fab-container-shape: 18px;
}

md-outlined-icon-button.transport-side,
md-icon-button.settings-toggle {
  --md-icon-button-icon-size: 20px;
  --md-icon-button-outline-color: var(--line-strong);
  --md-icon-button-icon-color: var(--muted);
}

md-icon-button.settings-toggle {
  --md-icon-button-icon-color: var(--ink);
}

md-fab.transport-main {
  --md-fab-container-color: var(--accent);
  --md-fab-icon-color: #fff;
}

md-outlined-icon-button:not(:defined),
md-icon-button:not(:defined) {
  width: var(--control-size);
  height: var(--control-size);
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: #fff;
  color: var(--muted);
}

md-fab.transport-main:not(:defined) {
  width: var(--control-main);
  height: var(--control-main);
  border-radius: 18px;
  background: var(--accent);
  color: #fff;
  box-shadow: 0 18px 32px rgba(29, 78, 216, 0.25);
}

.transport-main {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.settings-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px;
  min-height: var(--control-size);
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.settings-primary label {
  margin: 0;
  font-size: 11px;
  color: var(--muted);
  white-space: nowrap;
}

.settings-primary select {
  height: 30px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  font-size: 12px;
}

.settings-toggle {
  border-radius: 14px;
}

.settings-panel {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transform: translateY(-6px);
  transition: max-height 0.3s ease, opacity 0.25s ease, transform 0.25s ease;
  margin-top: 0;
  padding: 0 12px;
  border-radius: 18px;
  border: 1px solid transparent;
  background: rgba(255, 255, 255, 0.9);
}

.settings-panel.is-open {
  max-height: 640px;
  opacity: 1;
  transform: translateY(0);
  margin-top: 8px;
  padding: 12px;
  border-color: var(--line);
}

.controls-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 14px;
  width: 100%;
}

.progress {
  position: relative;
  background: #ffffff;
  border-radius: 999px;
  height: 34px;
  overflow: hidden;
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
  width: 100%;
  max-width: 380px;
  align-self: center;
}

.progress-bar {
  position: absolute;
  left: 12px;
  right: 12px;
  top: 50%;
  margin-top: -3px;
  height: 6px;
  background: linear-gradient(90deg, var(--accent), var(--accent-warm));
  transform: scaleX(0);
  transform-origin: left;
  border-radius: 999px;
}

.progress-text {
  position: relative;
  z-index: 1;
  text-align: center;
  font-size: 12px;
  color: var(--ink);
  line-height: 34px;
  letter-spacing: 0.14em;
  font-weight: 600;
}

.footer {
  width: 100%;
  max-width: var(--content-max);
  font-size: 12px;
  color: var(--muted);
  text-align: center;
}

.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;
}

.play-toggle #playBtn {
  opacity: 1;
  pointer-events: auto;
  visibility: visible;
}

.play-toggle #pauseBtn {
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
  transform: scale(0.96);
}

.app.is-playing .play-toggle #playBtn {
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
  transform: scale(0.96);
}

.app.is-playing .play-toggle #pauseBtn {
  opacity: 1;
  pointer-events: auto;
  visibility: visible;
  transform: scale(1);
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(12px);
  }
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 980px) {
  .app {
    padding: 46px 20px 62px;
    gap: 20px;
  }

  .controls-card {
    position: static;
  }
}

@media (max-width: 720px) {
  .app {
    padding: 34px 16px 54px;
  }

  .card {
    padding: 18px;
  }

  .article-card {
    padding: 24px 20px;
  }

  .hero h1 {
    font-size: clamp(28px, 7vw, 40px);
  }

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

  .input-row button {
    width: 100%;
  }

  .article-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .article-body.lyrics {
    max-height: 46vh;
  }

  .player-row {
    grid-template-columns: 1fr;
    row-gap: 12px;
    justify-items: center;
  }

  .player-controls {
    grid-column: 1;
  }

  .player-meta {
    grid-column: 1;
    justify-self: center;
    flex-wrap: wrap;
    justify-content: center;
  }

  .settings-primary {
    order: 1;
  }

  .settings-toggle {
    order: 2;
  }

  .progress {
    height: 32px;
    max-width: 280px;
  }

  .progress-text {
    line-height: 32px;
  }
}

@media (max-width: 430px) {
  .app {
    padding: 30px 14px 48px;
    gap: 16px;
  }

  .hero {
    gap: 10px;
  }

  .hero p {
    font-size: 14px;
  }

  .app.is-reading .hero p {
    display: none;
  }

  .input-card.is-collapsed {
    padding: 12px 14px;
  }

  .player-controls {
    gap: 12px;
    padding: 0;
  }

  :root {
    --control-size: 36px;
    --control-main: 50px;
  }

  .progress {
    max-width: 240px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}