:root {
  --bg: #14111f;
  --bg-gradient: radial-gradient(circle at top, #211b38 0%, #14111f 55%);
  --card-bg: #211d33;
  --card-border: #322c4b;
  --card-hover: #2b2545;
  --pill-bg: #211d33;
  --pill-border: #3a3358;
  --pill-active-bg: #4a3f7a;
  --accent: #7c6ff0;
  --accent-2: #5b8cff;
  --text: #ffffff;
  --text-muted: #b7b1d1;
  --danger: #ff6b6b;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-full: 999px;
  color-scheme: dark;
}

/* ---------- Light theme ---------- */
html[data-theme="light"] {
  --bg: #f4f3fb;
  --bg-gradient: radial-gradient(circle at top, #ffffff 0%, #e9e7f7 55%);
  --card-bg: #ffffff;
  --card-border: #d9d6ec;
  --card-hover: #ece9fb;
  --pill-bg: #ffffff;
  --pill-border: #d9d6ec;
  --pill-active-bg: #ded8fb;
  --accent: #6a5ae0;
  --accent-2: #3f74e8;
  --text: #1c1830;
  --text-muted: #5c5678;
  --danger: #d13b3b;
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

/* Elements toggled via the `hidden` attribute must always stay hidden, even
   though some of them (e.g. .login-screen, .modal-overlay) also set an
   explicit `display` value for when they ARE shown. Without this rule the
   author `display: flex` declaration wins over the UA `[hidden]` default. */
[hidden] {
  display: none !important;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  background: var(--bg-gradient);
  color: var(--text);
  font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  transition: background 0.2s ease, color 0.2s ease;
}

/* ---------- Theme toggle ---------- */
.theme-toggle {
  position: fixed;
  top: 14px;
  right: 14px;
  z-index: 30;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  color: var(--text);
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

/* ---------- Login screen ---------- */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.login-card {
  width: 100%;
  max-width: 340px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.login-icon {
  font-size: 40px;
}

.login-card h1 {
  margin: 0;
  font-size: 22px;
  letter-spacing: 0.03em;
}

.login-hint {
  margin: 0 0 8px;
  color: var(--text-muted);
  font-size: 14px;
}

.login-input,
.field-input {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--card-border);
  background: #17142455;
  background-color: #191530;
  color: var(--text);
  font-size: 15px;
}

.login-input:focus,
.field-input:focus {
  outline: 2px solid var(--accent);
}

.login-btn {
  margin-top: 8px;
}

.login-error {
  color: var(--danger);
  font-size: 13px;
  margin: 4px 0 0;
}

/* ---------- Buttons ---------- */
.btn {
  border: none;
  border-radius: var(--radius-full);
  padding: 12px 20px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: white;
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--card-border);
  color: var(--text);
}

/* ---------- App header ---------- */
.app {
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px 16px 90px;
  transition: padding-bottom 0.2s ease;
}

body.has-playbar .app {
  padding-bottom: 160px;
}

.app-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  text-align: center;
  margin-bottom: 24px;
}

.app-title {
  margin: 0;
  font-size: clamp(22px, 6vw, 34px);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 12px;
}

.app-title-icon {
  font-size: 0.9em;
}

.volume-row {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  max-width: 380px;
  color: var(--text-muted);
  font-size: 14px;
}

.volume-slider {
  flex: 1;
  accent-color: var(--accent-2);
  height: 4px;
}

.category-nav {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 10px;
  width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 6px;
  scrollbar-width: thin;
}

.category-nav::-webkit-scrollbar {
  height: 4px;
}

.category-nav::-webkit-scrollbar-thumb {
  background: var(--card-border);
  border-radius: var(--radius-full);
}

.category-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  border-radius: var(--radius-full);
  border: 1px solid var(--pill-border);
  background: var(--pill-bg);
  color: var(--text-muted);
  font-size: 14px;
  cursor: pointer;
  white-space: nowrap;
  flex: none;
  scroll-snap-align: start;
}

.category-pill.active {
  background: var(--pill-active-bg);
  color: var(--text);
  border-color: var(--accent);
}

.category-edit-btn {
  border: none;
  background: transparent;
  color: inherit;
  font-size: 12px;
  line-height: 1;
  cursor: pointer;
  padding: 0;
  opacity: 0.7;
}

.category-edit-btn:hover {
  opacity: 1;
}

/* ---------- Sound grid ---------- */
.sound-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 14px;
}

.sound-card {
  position: relative;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 18px 16px;
  min-height: 96px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 10px;
  cursor: pointer;
  text-align: left;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
}

.sound-card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 10px;
  padding-right: 20px;
}

.info-icon {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.info-icon:hover {
  background: rgba(124, 111, 240, 0.2);
  color: var(--text);
}

.sound-card-menu {
  position: absolute;
  top: 36px;
  right: 8px;
  z-index: 6;
  min-width: 170px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.menu-item {
  border: none;
  background: none;
  color: var(--text);
  font-size: 13px;
  text-align: left;
  padding: 10px 14px;
  cursor: pointer;
}

.menu-item:hover {
  background: var(--card-hover);
}

.menu-item.danger {
  color: var(--danger);
}

.sound-card:hover {
  background: var(--card-hover);
}

.sound-card:active {
  transform: scale(0.98);
}

.sound-card.playing {
  border-color: var(--accent);
  background: var(--card-hover);
}

.sound-card-name {
  font-weight: 700;
  font-size: 16px;
  line-height: 1.25;
}

.sound-card-top {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.sound-card-duration {
  font-size: 11px;
  color: var(--text-muted);
  opacity: 0.7;
  font-variant-numeric: tabular-nums;
}

.sound-card-category {
  color: var(--text-muted);
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--text-muted);
  padding: 40px 16px;
}

/* ---------- Upload FAB ---------- */
.upload-fab {
  position: fixed;
  right: 20px;
  bottom: 24px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: white;
  font-size: 28px;
  line-height: 1;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.4);
  cursor: pointer;
  transition: bottom 0.2s ease;
  z-index: 15;
}

body.has-playbar .upload-fab {
  bottom: 92px;
}

/* ---------- Now-playing bar ---------- */
.playbar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 25;
  background: var(--card-bg);
  border-top: 1px solid var(--card-border);
  padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: 0 -6px 18px rgba(0, 0, 0, 0.3);
}

.playbar-info {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  font-size: 13px;
}

.playbar-name {
  font-weight: 700;
  font-size: 14px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.playbar-time {
  color: var(--text-muted);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.playbar-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.playbar-btn {
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  padding: 4px;
  flex: none;
}

.playbar-seek {
  flex: 1;
  accent-color: var(--accent-2);
  height: 4px;
}

/* ---------- Upload modal ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 8, 20, 0.7);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 0;
  z-index: 20;
}

.modal-card {
  width: 100%;
  max-width: 420px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 20px 20px 0 0;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.modal-card h2 {
  margin: 0 0 6px;
  font-size: 18px;
}

.field-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 6px;
}

.upload-status {
  font-size: 13px;
  margin: 4px 0 0;
}

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

.upload-status.success {
  color: #7ee787;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 12px;
}

@media (min-width: 640px) {
  .modal-overlay {
    align-items: center;
  }

  .modal-card {
    border-radius: var(--radius-lg);
  }
}