:root {
  --bg: #090c16;
  --panel: #12182a;
  --panel-2: #161f36;
  --panel-3: #1d2746;
  --sidebar: #0d1324;
  --line: rgba(154, 172, 255, 0.18);
  --text: #edf2ff;
  --muted: #9aa4c5;
  --accent: #6f8cff;
  --accent-2: #8f6bff;
  --danger: #ff6e89;
  --success: #55d3b0;
  --warning: #f5c46b;
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
  --radius: 18px;
  --radius-sm: 12px;
  --content-max: 1400px;
  --font: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(115, 74, 255, 0.22), transparent 30%),
    radial-gradient(circle at top right, rgba(66, 138, 255, 0.18), transparent 30%),
    linear-gradient(180deg, #090c16 0%, #0f1422 48%, #090c16 100%);
  color: var(--text);
  font-family: var(--font);
}

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

button {
  cursor: pointer;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

.app-shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  align-self: start;
  display: flex;
  flex-direction: column;
  gap: 24px;
  min-height: 100vh;
  padding: 28px 22px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent),
    linear-gradient(180deg, #0d1324 0%, #111a30 100%);
  border-right: 1px solid var(--line);
}

.brand-block h1,
.topbar h2,
.section-head h3,
.modal-card h3 {
  margin: 0;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.eyebrow {
  margin: 0 0 8px;
  color: #9ab1ff;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.72rem;
}

.brand-copy,
.sidebar-note,
.empty-copy,
.helper-copy,
.muted {
  color: var(--muted);
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sidebar-nav a {
  padding: 12px 14px;
  border-radius: 14px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid transparent;
  transition: 0.18s ease;
}

.sidebar-nav a:hover,
.sidebar-nav a.is-active {
  color: var(--text);
  background: linear-gradient(135deg, rgba(111, 140, 255, 0.24), rgba(143, 107, 255, 0.2));
  border-color: rgba(153, 173, 255, 0.26);
}

.sidebar-note {
  margin-top: auto;
  padding: 16px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  font-size: 0.92rem;
  line-height: 1.45;
}

.main-panel {
  width: 100%;
  max-width: var(--content-max);
  padding: 24px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  margin-bottom: 18px;
}

.status-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(20, 29, 52, 0.95);
}

.status-banner.is-hidden {
  display: none;
}

.status-banner.status-error {
  border-color: rgba(255, 110, 137, 0.45);
  background: rgba(68, 23, 38, 0.9);
}

.status-banner.status-success {
  border-color: rgba(85, 211, 176, 0.45);
  background: rgba(19, 60, 57, 0.9);
}

.status-banner.status-info {
  border-color: rgba(111, 140, 255, 0.35);
}

.view-section {
  display: none;
}

.view-section.is-active {
  display: block;
}

.panel {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

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

.section-stack {
  display: grid;
  gap: 18px;
}

.panel-block {
  padding: 20px;
}

.search-layout,
.sets-layout,
.collection-layout,
.decks-layout,
.settings-layout {
  display: grid;
  gap: 18px;
}

.search-layout,
.sets-layout {
  grid-template-columns: minmax(300px, 360px) minmax(0, 1fr);
}

.collection-layout,
.decks-layout {
  grid-template-columns: minmax(280px, 340px) minmax(0, 1fr);
}

.settings-layout {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.form-grid {
  display: grid;
  gap: 14px;
}

.form-grid.two-col {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.field {
  display: grid;
  gap: 8px;
}

.field label {
  color: #d9e2ff;
  font-size: 0.92rem;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(154, 172, 255, 0.18);
  background: rgba(9, 13, 24, 0.85);
  color: var(--text);
}

.field textarea {
  min-height: 100px;
  resize: vertical;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: 2px solid rgba(111, 140, 255, 0.55);
  border-color: rgba(111, 140, 255, 0.45);
}

.button-row,
.inline-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.primary-btn,
.secondary-btn,
.ghost-btn,
.danger-btn {
  appearance: none;
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 11px 14px;
  color: var(--text);
  min-height: 42px;
}

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

.secondary-btn {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(154, 172, 255, 0.18);
}

.ghost-btn {
  background: transparent;
  border-color: rgba(154, 172, 255, 0.18);
  color: var(--muted);
}

.danger-btn {
  background: rgba(255, 110, 137, 0.14);
  border-color: rgba(255, 110, 137, 0.3);
}

.kpi-row {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.kpi-card,
.folder-card,
.deck-card,
.wishlist-card,
.set-card,
.card-tile,
.stat-card {
  background: rgba(7, 11, 22, 0.75);
  border: 1px solid rgba(154, 172, 255, 0.15);
  border-radius: 16px;
}

.kpi-card,
.stat-card {
  padding: 16px;
}

.kpi-card strong,
.stat-card strong {
  display: block;
  font-size: 1.35rem;
  margin-top: 6px;
}

.results-grid,
.set-grid,
.collection-grid,
.wishlist-grid,
.folder-list,
.deck-list {
  display: grid;
  gap: 14px;
}

.results-grid,
.set-grid {
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}

.collection-grid {
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}

.wishlist-grid,
.folder-list,
.deck-list {
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.card-tile {
  padding: 14px;
  display: grid;
  gap: 12px;
}

.card-media {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(111, 140, 255, 0.18), rgba(12, 18, 30, 0.96));
  aspect-ratio: 0.72 / 1;
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card-meta {
  display: grid;
  gap: 6px;
}

.card-meta h4,
.folder-card h4,
.deck-card h4,
.wishlist-card h4,
.set-card h4 {
  margin: 0;
  font-size: 1rem;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.chip {
  padding: 6px 9px;
  border-radius: 999px;
  background: rgba(111, 140, 255, 0.14);
  border: 1px solid rgba(154, 172, 255, 0.2);
  color: #dce5ff;
  font-size: 0.8rem;
}

.tile-actions {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.tile-actions .primary-btn,
.tile-actions .secondary-btn,
.tile-actions .ghost-btn {
  width: 100%;
}

.tile-actions .wide {
  grid-column: 1 / -1;
}

.set-card,
.folder-card,
.deck-card,
.wishlist-card {
  padding: 16px;
  display: grid;
  gap: 10px;
}

.table-wrap {
  overflow-x: auto;
  border-radius: 16px;
  border: 1px solid rgba(154, 172, 255, 0.14);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 880px;
  background: rgba(7, 11, 22, 0.82);
}

thead th {
  text-align: left;
  padding: 13px 14px;
  font-size: 0.84rem;
  color: #b5c3ef;
  background: rgba(18, 24, 42, 0.95);
}

tbody td {
  padding: 13px 14px;
  border-top: 1px solid rgba(154, 172, 255, 0.12);
  vertical-align: top;
}

.table-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.split-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.empty-state {
  padding: 22px;
  border-radius: 16px;
  border: 1px dashed rgba(154, 172, 255, 0.18);
  background: rgba(11, 16, 29, 0.76);
}

.list-stack {
  display: grid;
  gap: 12px;
}

.collection-item {
  display: grid;
  gap: 12px;
}

.collection-card {
  display: grid;
  grid-template-columns: 82px minmax(0, 1fr);
  gap: 14px;
  padding: 14px;
  border-radius: 16px;
  background: rgba(7, 11, 22, 0.76);
  border: 1px solid rgba(154, 172, 255, 0.14);
}

.thumb {
  width: 82px;
  height: 112px;
  border-radius: 10px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.03);
}

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

.modal-shell[hidden] {
  display: none;
}

.modal-shell {
  position: fixed;
  inset: 0;
  z-index: 20;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(2, 5, 12, 0.72);
  backdrop-filter: blur(4px);
}

.modal-card {
  position: relative;
  z-index: 1;
  max-width: 920px;
  max-height: calc(100vh - 40px);
  margin: 20px auto;
  overflow: auto;
  padding: 20px;
  border-radius: 24px;
  background: linear-gradient(180deg, #11182b 0%, #0b1020 100%);
  border: 1px solid rgba(154, 172, 255, 0.18);
  box-shadow: var(--shadow);
}

.modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.modal-grid {
  display: grid;
  gap: 18px;
}

.modal-grid.two-col {
  grid-template-columns: 220px minmax(0, 1fr);
}

.modal-preview {
  display: grid;
  gap: 12px;
}

.modal-preview .card-media {
  max-width: 220px;
}

.mono {
  font-family: "Consolas", "Courier New", monospace;
  font-size: 0.9rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

@media (max-width: 1100px) {
  .search-layout,
  .sets-layout,
  .collection-layout,
  .decks-layout,
  .settings-layout {
    grid-template-columns: 1fr;
  }

  .modal-grid.two-col {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    min-height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .sidebar-nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .main-panel {
    padding: 18px 14px 28px;
  }

  .sidebar {
    padding: 18px 14px;
  }

  .sidebar-nav {
    grid-template-columns: 1fr;
  }

  .topbar {
    flex-direction: column;
    align-items: stretch;
  }

  .form-grid.two-col,
  .tile-actions {
    grid-template-columns: 1fr;
  }

  .collection-card {
    grid-template-columns: 1fr;
  }

  .thumb {
    width: 100%;
    height: 180px;
  }
}