/* =============================================================================
   국뽕 스튜디오 — Dashboard shell + 소재찾기
   Themes: dark (default) · midnight · light
   ============================================================================= */

/* ---------- Theme 1: Dark (current) ---------- */
:root,
[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0b0f14;
  --bg-elevated: #121820;
  --panel: rgba(22, 30, 42, 0.78);
  --panel-solid: #161e2a;
  --panel-border: rgba(255, 255, 255, 0.08);
  --text: #e8eef6;
  --text-muted: #8b9bb0;
  --accent: #ff4d6d;
  --accent-2: #3d8bfd;
  --ok: #3dd68c;
  --warn: #f5c542;
  --danger: #ff6b6b;
  --sidebar-bg: rgba(10, 14, 20, 0.96);
  --topbar-bg: rgba(11, 15, 20, 0.88);
  --input-bg: rgba(0, 0, 0, 0.35);
  --chip-bg: rgba(255, 255, 255, 0.04);
  --surface-soft: rgba(0, 0, 0, 0.22);
  --nav-active-bg: rgba(61, 139, 253, 0.12);
  --nav-active-border: rgba(61, 139, 253, 0.35);
  --orb-1: #ff4d6d55;
  --orb-2: #3d8bfd44;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  --shadow-card: 0 16px 48px rgba(0, 0, 0, 0.45);
  --skeleton-a: #1a222e;
  --skeleton-b: #243041;
  --thumb-bg: #0a0e14;
  --pill-info-bg: rgba(61, 139, 253, 0.15);
  --pill-info-text: #9ec5ff;
  --pill-info-border: rgba(61, 139, 253, 0.3);
  --status-loading-bg: rgba(61, 139, 253, 0.1);
  --status-loading-border: rgba(61, 139, 253, 0.25);
  --status-loading-text: #b8d4ff;
  --status-error-bg: rgba(255, 107, 107, 0.1);
  --status-error-border: rgba(255, 107, 107, 0.3);
  --status-error-text: #ffb4b4;
  --status-info-bg: rgba(61, 214, 140, 0.08);
  --status-info-border: rgba(61, 214, 140, 0.25);
  --status-info-text: #a8f0c8;
  --download-btn-bg: rgba(61, 139, 253, 0.12);
  --download-btn-border: rgba(61, 139, 253, 0.35);
  --download-btn-text: #9ec5ff;
  --radius: 14px;
  --radius-sm: 10px;
  --font: "Noto Sans KR", "Noto Sans JP", system-ui, -apple-system, sans-serif;
  --sidebar-w: 260px;
  --grade-s: #f5c542;
  --grade-a: #3dd68c;
  --grade-b: #3d8bfd;
  --grade-c: #8b9bb0;
}

/* ---------- Theme 2: Midnight (deep / OLED dark) ---------- */
[data-theme="midnight"] {
  color-scheme: dark;
  --bg: #000000;
  --bg-elevated: #0a0a0c;
  --panel: rgba(18, 18, 22, 0.92);
  --panel-solid: #121216;
  --panel-border: rgba(255, 255, 255, 0.06);
  --text: #f2f2f5;
  --text-muted: #7a7a8c;
  --accent: #ff2d55;
  --accent-2: #5e5ce6;
  --ok: #30d158;
  --warn: #ffd60a;
  --danger: #ff453a;
  --sidebar-bg: rgba(0, 0, 0, 0.98);
  --topbar-bg: rgba(0, 0, 0, 0.92);
  --input-bg: rgba(255, 255, 255, 0.04);
  --chip-bg: rgba(255, 255, 255, 0.05);
  --surface-soft: rgba(255, 255, 255, 0.03);
  --nav-active-bg: rgba(94, 92, 230, 0.18);
  --nav-active-border: rgba(94, 92, 230, 0.45);
  --orb-1: #ff2d5533;
  --orb-2: #5e5ce633;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.65);
  --shadow-card: 0 16px 48px rgba(0, 0, 0, 0.75);
  --skeleton-a: #141418;
  --skeleton-b: #22222a;
  --thumb-bg: #000;
  --pill-info-bg: rgba(94, 92, 230, 0.18);
  --pill-info-text: #c7c6ff;
  --pill-info-border: rgba(94, 92, 230, 0.4);
  --status-loading-bg: rgba(94, 92, 230, 0.12);
  --status-loading-border: rgba(94, 92, 230, 0.3);
  --status-loading-text: #c7c6ff;
  --status-error-bg: rgba(255, 69, 58, 0.12);
  --status-error-border: rgba(255, 69, 58, 0.35);
  --status-error-text: #ff8a80;
  --status-info-bg: rgba(48, 209, 88, 0.1);
  --status-info-border: rgba(48, 209, 88, 0.3);
  --status-info-text: #86efac;
  --download-btn-bg: rgba(94, 92, 230, 0.15);
  --download-btn-border: rgba(94, 92, 230, 0.4);
  --download-btn-text: #c7c6ff;
  --grade-s: #ffd60a;
  --grade-a: #30d158;
  --grade-b: #5e5ce6;
  --grade-c: #8e8e93;
}

/* ---------- Theme 3: Light ---------- */
[data-theme="light"] {
  color-scheme: light;
  --bg: #f4f6fa;
  --bg-elevated: #ffffff;
  --panel: rgba(255, 255, 255, 0.92);
  --panel-solid: #ffffff;
  --panel-border: rgba(15, 23, 42, 0.1);
  --text: #0f172a;
  --text-muted: #64748b;
  --accent: #e11d48;
  --accent-2: #2563eb;
  --ok: #16a34a;
  --warn: #ca8a04;
  --danger: #dc2626;
  --sidebar-bg: rgba(255, 255, 255, 0.96);
  --topbar-bg: rgba(255, 255, 255, 0.92);
  --input-bg: rgba(15, 23, 42, 0.04);
  --chip-bg: rgba(15, 23, 42, 0.04);
  --surface-soft: rgba(15, 23, 42, 0.03);
  --nav-active-bg: rgba(37, 99, 235, 0.1);
  --nav-active-border: rgba(37, 99, 235, 0.35);
  --orb-1: #e11d4822;
  --orb-2: #2563eb22;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  --shadow-card: 0 14px 36px rgba(15, 23, 42, 0.1);
  --skeleton-a: #e2e8f0;
  --skeleton-b: #f1f5f9;
  --thumb-bg: #e2e8f0;
  --pill-info-bg: rgba(37, 99, 235, 0.1);
  --pill-info-text: #1d4ed8;
  --pill-info-border: rgba(37, 99, 235, 0.25);
  --status-loading-bg: rgba(37, 99, 235, 0.08);
  --status-loading-border: rgba(37, 99, 235, 0.2);
  --status-loading-text: #1e40af;
  --status-error-bg: rgba(220, 38, 38, 0.08);
  --status-error-border: rgba(220, 38, 38, 0.22);
  --status-error-text: #b91c1c;
  --status-info-bg: rgba(22, 163, 74, 0.08);
  --status-info-border: rgba(22, 163, 74, 0.22);
  --status-info-text: #15803d;
  --download-btn-bg: rgba(37, 99, 235, 0.08);
  --download-btn-border: rgba(37, 99, 235, 0.28);
  --download-btn-text: #1d4ed8;
  --grade-s: #ca8a04;
  --grade-a: #16a34a;
  --grade-b: #2563eb;
  --grade-c: #64748b;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.2s ease, color 0.2s ease;
}

/* Ambient background */
.bg-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
  pointer-events: none;
  z-index: 0;
}
[data-theme="light"] .bg-orb {
  opacity: 0.5;
}
.orb-1 {
  width: 420px;
  height: 420px;
  top: -80px;
  right: -60px;
  background: radial-gradient(circle, var(--orb-1), transparent 70%);
}
.orb-2 {
  width: 380px;
  height: 380px;
  bottom: 10%;
  left: -100px;
  background: radial-gradient(circle, var(--orb-2), transparent 70%);
}

/* Theme switcher */
.theme-switcher {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  padding: 0.2rem;
  border-radius: 999px;
  border: 1px solid var(--panel-border);
  background: var(--surface-soft);
}

.theme-btn {
  border: none;
  background: transparent;
  color: var(--text-muted);
  font: inherit;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.35rem 0.6rem;
  border-radius: 999px;
  cursor: pointer;
  line-height: 1.2;
  white-space: nowrap;
  transition: background 0.15s, color 0.15s;
}

.theme-btn:hover {
  color: var(--text);
  background: var(--chip-bg);
}

.theme-btn.active {
  background: var(--nav-active-bg);
  color: var(--text);
  box-shadow: inset 0 0 0 1px var(--nav-active-border);
}

/* ========== App shell (sidebar + main) ========== */
.app-shell {
  position: relative;
  z-index: 1;
  display: flex;
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  align-self: flex-start;
  width: var(--sidebar-w);
  min-height: 100vh;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.1rem 0.85rem;
  border-right: 1px solid var(--panel-border);
  background: var(--sidebar-bg);
  backdrop-filter: blur(16px);
  z-index: 30;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.35rem 0.5rem 1rem;
  border-bottom: 1px solid var(--panel-border);
  margin-bottom: 0.5rem;
}

.sidebar-logo {
  font-size: 1.5rem;
  line-height: 1;
}

.sidebar-title {
  font-weight: 700;
  font-size: 0.98rem;
  letter-spacing: -0.02em;
}

.sidebar-sub {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.sidebar-close {
  display: none;
  margin-left: auto;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.4rem;
  cursor: pointer;
  line-height: 1;
  padding: 0.2rem 0.4rem;
}

.nav-section-label {
  margin: 0.4rem 0.6rem 0.35rem;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  flex: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  width: 100%;
  text-align: left;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text);
  font: inherit;
  padding: 0.65rem 0.7rem;
  border-radius: 12px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.nav-item:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--panel-border);
}

.nav-item.active {
  background: var(--nav-active-bg);
  border-color: var(--nav-active-border);
}

.nav-item:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.nav-icon {
  font-size: 1.1rem;
  width: 1.4rem;
  text-align: center;
  flex-shrink: 0;
}

.nav-text {
  display: flex;
  flex-direction: column;
  gap: 0.05rem;
  min-width: 0;
  flex: 1;
}

.nav-label {
  font-size: 0.92rem;
  font-weight: 600;
}

.nav-desc {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.nav-badge {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.15rem 0.4rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-muted);
  border: 1px solid var(--panel-border);
  flex-shrink: 0;
}

.sidebar-footer {
  padding: 0.75rem 0.6rem 0.25rem;
  border-top: 1px solid var(--panel-border);
}

.sidebar-hint {
  margin: 0;
  font-size: 0.7rem;
  color: var(--text-muted);
}

.sidebar-backdrop {
  display: none;
}

.main-column {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.85rem 1rem;
  padding: 1rem 1.35rem;
  border-bottom: 1px solid var(--panel-border);
  backdrop-filter: blur(12px);
  background: var(--topbar-bg);
  position: sticky;
  top: 0;
  z-index: 20;
}

.menu-toggle {
  display: none;
  background: var(--chip-bg);
  border: 1px solid var(--panel-border);
  color: var(--text);
  border-radius: 8px;
  width: 2.25rem;
  height: 2.25rem;
  font-size: 1.1rem;
  cursor: pointer;
}

.topbar-title {
  flex: 1;
  min-width: 0;
}

.topbar-title h1 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.topbar-sub {
  margin: 0.15rem 0 0;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.header-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: flex-end;
}

.content {
  width: min(1120px, 100%);
  margin: 0 auto;
  padding: 1.15rem 1rem 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  flex: 1;
}

.view[hidden] {
  display: none !important;
}

.view.active {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Market select cards */
.market-head h2 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
}

.market-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin-top: 0.85rem;
}

.market-card {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1rem 1.05rem;
  border-radius: var(--radius);
  border: 1px solid var(--panel-border);
  background: var(--surface-soft);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
  user-select: none;
}

.market-card input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.market-card:hover {
  border-color: rgba(255, 255, 255, 0.16);
}

.market-card.is-selected {
  border-color: var(--nav-active-border);
  background: var(--nav-active-bg);
  box-shadow: 0 0 0 1px var(--nav-active-border);
}

.market-flag {
  font-size: 1.5rem;
  line-height: 1;
}

.market-name {
  font-weight: 700;
  font-size: 1rem;
}

.market-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Placeholder views */
.placeholder-panel {
  text-align: center;
  padding: 2.5rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.65rem;
}

.placeholder-icon {
  font-size: 2.5rem;
  line-height: 1;
}

.placeholder-panel h2 {
  margin: 0;
  font-size: 1.25rem;
}

.placeholder-panel p {
  margin: 0;
  color: var(--text-muted);
  max-width: 420px;
}

.placeholder-list {
  margin: 0.5rem 0 0.75rem;
  padding: 0;
  list-style: none;
  color: var(--text-muted);
  font-size: 0.88rem;
  text-align: left;
}

.placeholder-list li {
  padding: 0.25rem 0;
}

.placeholder-list li::before {
  content: "· ";
  color: var(--accent-2);
}

@media (max-width: 900px) {
  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    transform: translateX(-105%);
    transition: transform 0.2s ease;
    box-shadow: var(--shadow);
  }

  body.sidebar-open .sidebar {
    transform: translateX(0);
  }

  .sidebar-close {
    display: inline-flex;
  }

  .menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .sidebar-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 25;
  }

  .sidebar-backdrop[hidden] {
    display: none;
  }

  .market-cards {
    grid-template-columns: 1fr;
  }
}

.pill {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 500;
  background: var(--pill-info-bg);
  color: var(--pill-info-text);
  border: 1px solid var(--pill-info-border);
}

.pill.muted {
  background: var(--chip-bg);
  color: var(--text-muted);
  border-color: var(--panel-border);
}

.pill.cache-hit {
  background: var(--status-info-bg);
  color: var(--ok);
  border-color: var(--status-info-border);
}

.pill.quota-ok {
  background: var(--status-info-bg);
  color: var(--ok);
  border-color: var(--status-info-border);
}

.pill.quota-warn {
  background: rgba(245, 197, 66, 0.12);
  color: var(--warn);
  border-color: rgba(245, 197, 66, 0.35);
}

.pill.quota-danger {
  background: var(--status-error-bg);
  color: var(--status-error-text);
  border-color: var(--status-error-border);
}

.panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 1.15rem 1.25rem;
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

/* Form */
.search-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  min-width: 0;
}

.field.grow {
  flex: 1;
}

.field label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.field input,
.field select {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--panel-border);
  background: var(--input-bg);
  color: var(--text);
  font: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.field input:focus,
.field select:focus {
  border-color: rgba(61, 139, 253, 0.6);
  box-shadow: 0 0 0 3px rgba(61, 139, 253, 0.15);
}

.field select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='%238b9bb0'%3E%3Cpath d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.85rem center;
  padding-right: 2rem;
}

.hint {
  margin: 0;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.field-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

@media (max-width: 720px) {
  .field-row {
    grid-template-columns: 1fr;
  }
}

.quick-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.chip {
  border: 1px solid var(--panel-border);
  background: var(--chip-bg);
  color: var(--text-muted);
  font: inherit;
  font-size: 0.78rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.chip:hover {
  color: var(--text);
  border-color: rgba(255, 77, 109, 0.45);
  background: rgba(255, 77, 109, 0.1);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border: none;
  border-radius: var(--radius-sm);
  font: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.7rem 1.25rem;
  cursor: pointer;
  transition: transform 0.1s, opacity 0.15s, background 0.15s;
}

.btn:active {
  transform: scale(0.98);
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn.primary {
  background: linear-gradient(135deg, #ff4d6d, #e63956);
  color: #fff;
  box-shadow: 0 6px 20px rgba(255, 77, 109, 0.3);
}

.btn.primary:hover:not(:disabled) {
  filter: brightness(1.06);
}

.btn.ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--panel-border);
}

.btn.ghost:hover {
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.18);
}

.btn-spinner {
  width: 1rem;
  height: 1rem;
  border: 2px solid rgba(255, 255, 255, 0.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Grade filter */
.filter-head h2 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
}

.grade-toggles {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 0.85rem 0;
}

.grade-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--panel-border);
  background: var(--surface-soft);
  cursor: pointer;
  user-select: none;
  transition: opacity 0.15s, border-color 0.15s, background 0.15s;
}

.grade-toggle input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.grade-toggle:has(input:not(:checked)) {
  opacity: 0.4;
  filter: grayscale(0.4);
}

.grade-toggle .badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.6rem;
  height: 1.6rem;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.grade-s .badge {
  background: rgba(245, 197, 66, 0.2);
  color: var(--grade-s);
  border: 1px solid rgba(245, 197, 66, 0.4);
}
.grade-a .badge {
  background: rgba(61, 214, 140, 0.15);
  color: var(--grade-a);
  border: 1px solid rgba(61, 214, 140, 0.35);
}
.grade-b .badge {
  background: rgba(61, 139, 253, 0.15);
  color: var(--grade-b);
  border: 1px solid rgba(61, 139, 253, 0.35);
}
.grade-c .badge {
  background: rgba(139, 155, 176, 0.15);
  color: var(--grade-c);
  border: 1px solid rgba(139, 155, 176, 0.35);
}

.grade-count {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

.filter-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

.link-btn {
  background: none;
  border: none;
  color: var(--accent-2);
  font: inherit;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  padding: 0;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.link-btn:hover {
  filter: brightness(1.15);
}

.result-summary {
  margin-left: auto;
  font-size: 0.85rem;
  color: var(--text-muted);
}

@media (max-width: 560px) {
  .result-summary {
    margin-left: 0;
    width: 100%;
  }
}

/* Status */
.status-area {
  min-height: 0;
}

.status-banner {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  padding: 0.9rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--panel-border);
  font-size: 0.9rem;
}

.status-banner.loading {
  background: var(--status-loading-bg);
  border-color: var(--status-loading-border);
  color: var(--status-loading-text);
}

.status-banner.error {
  background: var(--status-error-bg);
  border-color: var(--status-error-border);
  color: var(--status-error-text);
}

.status-banner.info {
  background: var(--status-info-bg);
  border-color: var(--status-info-border);
  color: var(--status-info-text);
}

/* Video grid */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.video-card {
  display: flex;
  flex-direction: column;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  overflow: hidden;
  color: inherit;
  box-shadow: var(--shadow);
  transition: transform 0.15s, border-color 0.15s, box-shadow 0.15s;
  backdrop-filter: blur(12px);
}

.video-card:hover {
  transform: translateY(-3px);
  border-color: var(--nav-active-border);
  box-shadow: var(--shadow-card);
}

.card-link {
  display: flex;
  flex-direction: column;
  flex: 1;
  text-decoration: none;
  color: inherit;
  min-width: 0;
}

.card-link:focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: -2px;
}

.card-actions {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 0 0.95rem 0.9rem;
}

.btn-download {
  width: 100%;
  border: 1px solid var(--download-btn-border);
  background: var(--download-btn-bg);
  color: var(--download-btn-text);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.btn-download:hover:not(:disabled) {
  filter: brightness(1.06);
  border-color: var(--nav-active-border);
}

.btn-download:disabled {
  opacity: 0.55;
  cursor: wait;
}

.download-status {
  font-size: 0.72rem;
  color: var(--text-muted);
  word-break: break-all;
  line-height: 1.35;
}

.download-status.loading {
  color: var(--download-btn-text);
}

.download-status.done {
  color: var(--ok);
}

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

.thumb-wrap {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--thumb-bg);
  overflow: hidden;
}

.thumb-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.card-grade {
  position: absolute;
  top: 0.55rem;
  left: 0.55rem;
  z-index: 1;
  min-width: 2rem;
  height: 2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-weight: 800;
  font-size: 0.85rem;
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35);
}

.card-grade.S {
  background: rgba(245, 197, 66, 0.92);
  color: #1a1400;
}
.card-grade.A {
  background: rgba(61, 214, 140, 0.92);
  color: #042012;
}
.card-grade.B {
  background: rgba(61, 139, 253, 0.92);
  color: #041020;
}
.card-grade.C {
  background: rgba(120, 132, 148, 0.92);
  color: #0b0f14;
}

.card-body {
  padding: 0.85rem 0.95rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  flex: 1;
}

.card-title {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-channel {
  margin: 0;
  font-size: 0.82rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.75rem;
  margin-top: auto;
  padding-top: 0.35rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.card-meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 3rem 1.5rem;
  color: var(--text-muted);
  border: 1px dashed var(--panel-border);
  border-radius: var(--radius);
  background: var(--surface-soft);
}

.empty-state[hidden] {
  display: none;
}

.empty-icon {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.empty-state h3 {
  margin: 0 0 0.5rem;
  color: var(--text);
  font-size: 1.1rem;
}

.empty-state p {
  margin: 0 auto;
  max-width: 420px;
  font-size: 0.9rem;
}

/* Footer */
.site-footer {
  text-align: center;
  padding: 1.25rem 1rem 1.75rem;
  color: var(--text-muted);
  font-size: 0.78rem;
  border-top: 1px solid var(--panel-border);
  margin-top: auto;
}

.site-footer code {
  font-size: 0.85em;
  padding: 0.1em 0.35em;
  border-radius: 4px;
  background: var(--chip-bg);
}

@media (max-width: 720px) {
  .theme-switcher {
    order: 10;
    width: 100%;
    justify-content: stretch;
  }
  .theme-btn {
    flex: 1;
    text-align: center;
  }
}

/* Skeleton loading cards */
.skeleton-card {
  border-radius: var(--radius);
  border: 1px solid var(--panel-border);
  background: var(--panel);
  overflow: hidden;
}

.skeleton-thumb {
  aspect-ratio: 16 / 9;
  background: linear-gradient(
    90deg,
    var(--skeleton-a) 25%,
    var(--skeleton-b) 50%,
    var(--skeleton-a) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.2s infinite;
}

.skeleton-lines {
  padding: 0.9rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.skeleton-line {
  height: 0.7rem;
  border-radius: 4px;
  background: linear-gradient(
    90deg,
    var(--skeleton-a) 25%,
    var(--skeleton-b) 50%,
    var(--skeleton-a) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.2s infinite;
}

.skeleton-line.short {
  width: 55%;
}

@keyframes shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}