/* Базовий reset і дизайн-токени.
   Дизайнер може сміливо міняти кольори, відступи, радіуси й типографіку. */
@import url("https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&family=IBM+Plex+Mono:wght@400;500;600&display=swap");

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #0b1118;
  --surface: #111924;
  --surface-muted: #0f1520;
  --surface-strong: #1a2331;
  --text: #e8eef9;
  --text-muted: #9dacbf;
  --border: #253345;
  --border-strong: #32465e;
  --accent: #5f92ff;
  --accent-soft: #16253c;
  --success: #59c381;
  --danger: #ef6b7a;
  --warning: #d8a654;
  --success-soft: #13261b;
  --success-border: #2e6d45;
  --danger-soft: #2b1318;
  --danger-border: #6e2b35;
  --warning-soft: #2a2113;
  --info-soft: #182033;
  --shadow: 0 14px 34px rgba(0, 0, 0, 0.45);
  --radius: 16px;
  --radius-sm: 10px;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --font-body: "Manrope", "Avenir Next", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --noise-texture: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 160 160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='1.1' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.9'/%3E%3C/svg%3E");
  --noise-size: 160px 160px;
  --noise-opacity-page: 0.035;
  --noise-opacity-surface: 0.016;
}

html {
  background: var(--bg);
}

body {
  position: relative;
  min-height: 100vh;
  font-family: var(--font-body);
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  isolation: isolate;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: var(--noise-texture);
  background-repeat: repeat;
  background-size: var(--noise-size);
  opacity: var(--noise-opacity-page);
  pointer-events: none;
  z-index: 0;
}

body > * {
  position: relative;
  z-index: 1;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

img,
video {
  max-width: 100%;
}

/* Глобальна layout-сітка сайту. */
.container {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
}

.app-container {
  padding: var(--space-6) 0 var(--space-10);
}

.page-content,
.battle-stage,
.tab-panel,
.track-list {
  display: grid;
  gap: var(--space-5);
}

/* Базова шапка і навігація. Дизайнер може міняти вигляд, але не auth hooks у markup. */
.site-header {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  align-items: start;
  margin-bottom: var(--space-6);
  padding: var(--space-5);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.site-header-copy {
  display: grid;
  gap: var(--space-1);
}

.site-kicker,
.section-kicker {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: var(--space-1) var(--space-2);
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.site-header h1,
.page-heading,
.battle-intro-copy h2,
.setup-copy h3,
.voting-panel h3,
.result-panel h3,
.login-box h1 {
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.site-header h1 {
  font-size: clamp(1.9rem, 3.5vw, 2.8rem);
}

.site-header p,
.page-lead,
.battle-intro-copy p,
.setup-copy p,
.setup-hint,
.setup-goal,
.loading-goal,
.panel-note,
.result-summary,
.empty-msg,
.track-meta,
.login-box p,
.micro-copy {
  color: var(--text-muted);
}

.site-header-nav {
  display: grid;
  justify-items: start;
}

.site-nav,
nav {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

/* Базові кнопки. `nav-btn`, `btn`, `btn-sm` використовуються в шаблонах і JS не читає їх значення, лише класи. */
.nav-btn,
.btn,
.btn-login,
.btn-next,
.btn-vote,
.btn-vote-undo,
.btn-sm,
.page-btn,
.btn-cancel,
.btn-replay,
.tab-btn {
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  transition: border-color 0.18s ease, background-color 0.18s ease, color 0.18s ease;
}

.nav-btn:hover,
.btn:hover,
.btn-login:hover,
.btn-next:hover,
.btn-vote:hover,
.btn-vote-undo:hover,
.btn-sm:hover,
.page-btn:hover,
.btn-cancel:hover,
.btn-replay:hover,
.tab-btn:hover {
  border-color: var(--accent);
}

.nav-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 var(--space-4);
  font-weight: 600;
}

.nav-btn.active {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: rgba(95, 146, 255, 0.45);
}

.nav-btn-danger {
  color: var(--danger);
}

.btn,
.btn-login,
.btn-next,
.btn-vote-undo {
  min-height: 48px;
  padding: 0 var(--space-5);
  font-weight: 600;
}

.btn-primary,
.btn-create,
.btn-next,
.btn-login {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.btn-secondary,
.btn-muted,
.btn-pwd,
.btn-cancel,
.page-btn,
.btn-replay {
  background: var(--surface-muted);
}

.btn-del {
  color: var(--danger);
  background: var(--danger-soft);
  border-color: var(--danger-border);
}

.btn:disabled,
.btn-login:disabled,
.btn-next:disabled,
.btn-vote:disabled,
.page-btn:disabled,
.btn-replay:disabled,
.btn-sm:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

/* Базові контейнерні секції. Це головні точки входу для дизайнера. */
.card-surface,
.card,
.hero-section,
.page-section,
.setup-panel,
.loading,
.battle-arena,
.voting-panel,
.result-panel,
.table-shell,
.login-box,
.modal-box,
.filters,
.settings-card,
.tabs,
.pagination {
  padding: var(--space-6);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  animation: rise-in 0.35s ease both;
}

.site-header,
.card-surface,
.card,
.hero-section,
.page-section,
.setup-panel,
.loading,
.battle-arena,
.voting-panel,
.result-panel,
.table-shell,
.login-box,
.modal-box,
.filters,
.settings-card,
.tabs,
.pagination {
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.site-header::before,
.card-surface::before,
.card::before,
.hero-section::before,
.page-section::before,
.setup-panel::before,
.loading::before,
.battle-arena::before,
.voting-panel::before,
.result-panel::before,
.table-shell::before,
.login-box::before,
.modal-box::before,
.filters::before,
.settings-card::before,
.tabs::before,
.pagination::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background-image: var(--noise-texture);
  background-repeat: repeat;
  background-size: var(--noise-size);
  opacity: var(--noise-opacity-surface);
  pointer-events: none;
  z-index: 0;
}

.site-header > *,
.card-surface > *,
.card > *,
.hero-section > *,
.page-section > *,
.setup-panel > *,
.loading > *,
.battle-arena > *,
.voting-panel > *,
.result-panel > *,
.table-shell > *,
.login-box > *,
.modal-box > *,
.filters > *,
.settings-card > *,
.tabs > *,
.pagination > * {
  position: relative;
  z-index: 1;
}

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

.hero-section,
.page-section {
  display: grid;
  gap: var(--space-4);
}

.battle-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(240px, 0.85fr);
  gap: var(--space-5);
}

.battle-intro-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
}

.battle-stat {
  padding: var(--space-4);
  background: var(--surface-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.battle-stat strong {
  display: block;
  margin-bottom: var(--space-1);
  font-size: 1.35rem;
}

.battle-coverage-panel,
.battle-coverage-head,
.battle-track-coverage-bars,
.battle-track-coverage-row,
.battle-track-coverage-meta {
  display: grid;
  gap: var(--space-3);
}

.battle-coverage-head {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
}

.battle-track-coverage-list {
  grid-template-columns: repeat(auto-fit, minmax(min(320px, 100%), 1fr));
}

.battle-track-coverage-item {
  display: grid;
  gap: var(--space-4);
  align-items: stretch;
}

.battle-track-coverage-labels {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  font-size: 0.92rem;
}

.battle-track-coverage-labels strong {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
}

.battle-track-coverage-progress {
  height: 12px;
  background: #1f2b39;
}

.battle-track-coverage-progress .progress-bar-fill {
  background: var(--accent);
}

.setup-panel {
  display: grid;
  grid-template-columns: minmax(240px, 0.8fr) minmax(0, 1.2fr);
  gap: var(--space-6);
}

.setup-form {
  display: grid;
  gap: var(--space-3);
}

.form-row,
.filters,
.admin-setup,
.settings-row {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.battle-mode-shell {
  display: grid;
  gap: var(--space-2);
}

.battle-mode-categories {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-2);
}

.battle-mode-option {
  display: grid;
  gap: 2px;
  text-align: left;
  padding: var(--space-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-muted);
  color: var(--text);
  transition: border-color 0.18s ease, background-color 0.18s ease, transform 0.18s ease;
}

.battle-mode-option:hover {
  border-color: var(--accent);
}

.battle-mode-option.is-active {
  border-color: var(--accent);
  background: var(--accent-soft);
  box-shadow: inset 0 0 0 1px rgba(95, 146, 255, 0.25);
}

.battle-mode-title {
  font-weight: 700;
}

.battle-mode-subtitle {
  color: var(--text-muted);
  font-size: 0.88rem;
}

/* Форми. Дизайнер може повністю міняти стилі, але не `id` полів, якщо вони читаються скриптами. */
label {
  font-weight: 600;
}

select,
input[type="text"],
input[type="password"],
.modal-box input {
  width: 100%;
  min-height: 46px;
  padding: 0 var(--space-4);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
}

select:focus,
input:focus {
  outline: 3px solid rgba(95, 146, 255, 0.22);
  border-color: var(--accent);
}

.loading {
  display: none;
  justify-items: center;
  gap: var(--space-3);
  text-align: center;
}

/* `active` тут перемикає `battle.js`. Не перейменовувати без оновлення скрипта. */
.loading.active {
  display: grid;
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* Секція battle. Класи нижче частково читає `battle.js`. */
.battle-arena {
  display: none;
  gap: var(--space-5);
}

.battle-arena.active {
  display: grid;
}

.battle-toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-3);
  align-items: center;
}

.volume-control {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: var(--space-3);
  align-items: center;
  padding: var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-muted);
}

.settings-grid {
  display: grid;
  gap: var(--space-5);
}

.settings-card {
  display: grid;
  gap: var(--space-5);
}

.settings-card-head {
  display: grid;
  gap: var(--space-2);
}

.settings-list {
  display: grid;
  gap: var(--space-4);
}

.settings-row {
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-muted);
}

.settings-row input[type="checkbox"] {
  width: 20px;
  height: 20px;
  accent-color: var(--accent);
}

.settings-row-slider {
  align-items: stretch;
}

.settings-copy {
  display: grid;
  gap: 4px;
}

.settings-copy span {
  color: var(--text-muted);
}

.settings-slider-shell {
  display: grid;
  gap: var(--space-2);
  min-width: min(320px, 100%);
}

.settings-slider-value {
  color: var(--accent);
  font-weight: 700;
}

.admin-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.admin-toggle input[type="checkbox"] {
  accent-color: var(--accent);
}

.step-indicator {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-3);
}

/* `.step.active` і `.step.done` ставить `battle.js`. */
.step {
  min-height: 78px;
  padding: var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-muted);
  color: var(--text-muted);
}

.step strong,
.step span {
  display: block;
}

.step strong {
  margin-bottom: var(--space-1);
  color: var(--text);
}

.step.active {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
}

.step.done {
  border-color: var(--success-border);
  background: var(--success-soft);
  color: var(--success);
}

.battle-grid,
.vote-buttons,
.result-models {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.battle-grid.audio-only {
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.player-section {
  padding: var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-muted);
}

.battle-arena.audio-only .player-section {
  display: grid;
  gap: var(--space-3);
  padding: var(--space-3);
}

/* Ці стани додає `battle.js` під час програвання і після завершення кроку. */
.player-section.is-current {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.player-section.is-done {
  border-color: var(--success-border);
  background: var(--success-soft);
}

.player-section.is-skipped {
  border-color: #6d5a30;
  background: var(--warning-soft);
}

.player-section-hide-extra-preview .video-wrapper {
  display: none;
}

.player-head,
.player-controls,
.track-item,
.modal-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.player-head {
  margin-bottom: var(--space-3);
}

.battle-arena.audio-only .player-head,
.battle-arena.audio-only .player-controls {
  align-items: flex-start;
}

.battle-arena.audio-only .player-head {
  margin-bottom: 0;
}

.battle-arena.audio-only .player-controls {
  gap: var(--space-2);
}

.player-label {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
  font-weight: 600;
}

.badge,
.player-index,
.result-badge,
.badge-admin,
.badge-user {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-1) var(--space-2);
  border-radius: 999px;
  background: var(--surface-strong);
  color: var(--text);
  font-size: 0.85rem;
  font-weight: 700;
}

.badge-original,
.res-both_good {
  background: var(--success-soft);
  color: var(--success);
}

.badge-a,
.res-model_a {
  background: var(--info-soft);
  color: var(--accent);
}

.badge-b,
.res-model_b {
  background: var(--warning-soft);
  color: var(--warning);
}

.res-both_bad {
  background: var(--danger-soft);
  color: var(--danger);
}

.badge-admin {
  background: var(--warning-soft);
  color: var(--warning);
}

.badge-user {
  background: var(--info-soft);
  color: var(--accent);
}

/* `.video-wrapper`, `.player-video`, `.fill`, `.player-status` читає `battle.js`. */
.video-wrapper {
  display: block;
  aspect-ratio: 16 / 9;
  margin-bottom: var(--space-3);
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #0b1119;
}

.video-wrapper::after {
  content: attr(data-empty-label);
  display: block;
  padding: var(--space-3);
  text-align: center;
  color: var(--text-muted);
}

.video-wrapper.has-video::after {
  display: none;
}

.player-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
}

.video-wrapper.has-video .player-video {
  opacity: 1;
}

.battle-arena.audio-only .video-wrapper {
  display: none;
}

.progress-bar,
.progress-bar-wrap,
.stat-bar {
  width: 100%;
  overflow: hidden;
  border-radius: 999px;
  background: #1f2a39;
}

.progress-bar,
.progress-bar-wrap {
  height: 10px;
}

.progress-bar .fill,
.progress-bar-fill,
.stat-bar-fill {
  height: 100%;
  width: 0;
  background: var(--accent);
}

.player-status {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.player-status.playing {
  color: var(--accent);
}

.player-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--space-2);
}

.battle-arena.audio-only .player-actions {
  justify-content: flex-start;
}

.btn-step-skip {
  --unlock-progress: 0%;
  background: var(--surface-muted);
  border-color: var(--border-strong);
  color: var(--text-muted);
  transition: background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.btn-step-skip.is-ready {
  background: var(--accent-soft);
  border-color: rgba(95, 146, 255, 0.55);
  color: var(--accent);
}

.btn-step-skip:disabled {
  opacity: 1;
  cursor: not-allowed;
}

/* Блоки голосування і результату. `.active` та `.is-selected` ставить `battle.js`. */
.voting-panel,
.result-panel {
  display: none;
  gap: var(--space-4);
}

.voting-panel.active,
.result-panel.active {
  display: grid;
}

.btn-vote {
  min-height: 72px;
  padding: var(--space-4);
  text-align: left;
  font-weight: 600;
}

.btn-vote.is-selected {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
}

.vote-pending {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-muted);
}

.result-model {
  padding: var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-muted);
}

.result-model .label {
  color: var(--text-muted);
  font-size: 0.88rem;
}

.result-model .name {
  margin: var(--space-2) 0;
  font-weight: 700;
}

.result-model .elo {
  font-size: 1.4rem;
  font-weight: 700;
}

.elo-change {
  font-weight: 700;
}

.elo-change.positive {
  color: var(--success);
}

.elo-change.negative {
  color: var(--danger);
}

.result-model.result-winner,
.result-model[data-outcome="winner"] {
  border-color: var(--success-border);
  background: var(--success-soft);
}

.result-model.result-loser,
.result-model[data-outcome="loser"] {
  border-color: var(--danger-border);
  background: var(--danger-soft);
}

.result-model.result-draw,
.result-model[data-outcome="draw"] {
  border-color: #3a4b64;
  background: #141d2b;
}

/* Таблиці і shell-контейнери для адмінки та leaderboard. */
.table-shell {
  overflow-x: auto;
}

.leaderboard-table,
.admin-page table {
  width: 100%;
  border-collapse: collapse;
}

.leaderboard-table th,
.leaderboard-table td,
.admin-page th,
.admin-page td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border);
  text-align: left;
  background: var(--surface);
}

.leaderboard-table th,
.admin-page th {
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.table-empty,
.muted-cell {
  color: var(--text-muted);
}

body.admin-page .container.app-container {
  width: min(1720px, calc(100% - 1rem));
}

body.admin-page .page-content {
  gap: var(--space-4);
}

body.admin-page .site-header,
body.admin-page .page-section,
body.admin-page .card-surface,
body.admin-page .card,
body.admin-page .filters,
body.admin-page .tabs,
body.admin-page .pagination {
  padding: 0.85rem 1rem;
}

body.admin-page .page-heading {
  font-size: clamp(1.5rem, 2.2vw, 2rem);
}

body.admin-page .page-lead,
body.admin-page .panel-note,
body.admin-page .status-msg,
body.admin-page .muted-cell {
  font-size: 0.78rem;
}

body.admin-page .tabs,
body.admin-page .filters {
  gap: 0.55rem;
}

body.admin-page .admin-filters {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
}

body.admin-page .tab-btn,
body.admin-page .btn-sm,
body.admin-page .page-btn {
  min-height: 34px;
  padding: 0 0.7rem;
  font-size: 0.76rem;
  line-height: 1;
}

body.admin-page .admin-table-shell {
  width: 100%;
  overflow: hidden;
}

body.admin-page .admin-table {
  width: 100%;
  table-layout: fixed;
  font-size: 0.76rem;
  line-height: 1.2;
}

body.admin-page .admin-table th,
body.admin-page .admin-table td {
  padding: 0.52rem 0.55rem;
  vertical-align: middle;
}

body.admin-page .admin-table th {
  font-size: 0.69rem;
  letter-spacing: 0.05em;
}

body.admin-page .admin-table td {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

body.admin-page .admin-table td strong,
body.admin-page .admin-table td .admin-link,
body.admin-page .admin-table td .result-badge {
  display: inline-block;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  vertical-align: top;
  white-space: nowrap;
}

body.admin-page .admin-table td:last-child {
  overflow: visible;
  white-space: normal;
}

body.admin-page .admin-table td:last-child button {
  margin: 0.15rem 0.2rem 0.15rem 0;
}

body.admin-page .admin-table .stat-bar {
  width: 54px;
  height: 6px;
  margin-left: 0.35rem;
}

body.admin-page .admin-table-history th:nth-child(1),
body.admin-page .admin-table-history td:nth-child(1) {
  width: 4%;
}

body.admin-page .admin-table-history th:nth-child(2),
body.admin-page .admin-table-history td:nth-child(2) {
  width: 10%;
}

body.admin-page .admin-table-history th:nth-child(3),
body.admin-page .admin-table-history td:nth-child(3) {
  width: 8%;
}

body.admin-page .admin-table-history th:nth-child(4),
body.admin-page .admin-table-history td:nth-child(4) {
  width: 8%;
}

body.admin-page .admin-table-history th:nth-child(5),
body.admin-page .admin-table-history td:nth-child(5),
body.admin-page .admin-table-history th:nth-child(6),
body.admin-page .admin-table-history td:nth-child(6) {
  width: 10%;
}

body.admin-page .admin-table-history th:nth-child(7),
body.admin-page .admin-table-history td:nth-child(7) {
  width: 7%;
}

body.admin-page .admin-table-history th:nth-child(8),
body.admin-page .admin-table-history td:nth-child(8) {
  width: 13%;
}

body.admin-page .admin-table-history th:nth-child(9),
body.admin-page .admin-table-history td:nth-child(9) {
  width: 9%;
}

body.admin-page .admin-table-history th:nth-child(10),
body.admin-page .admin-table-history td:nth-child(10) {
  width: 12%;
}

body.admin-page .admin-table-history th:nth-child(11),
body.admin-page .admin-table-history td:nth-child(11) {
  width: 9%;
}

body.admin-page .admin-table-history th:nth-child(12),
body.admin-page .admin-table-history td:nth-child(12) {
  width: 10%;
}

body.admin-page .admin-table-stats th:nth-child(1),
body.admin-page .admin-table-stats td:nth-child(1) {
  width: 11%;
}

body.admin-page .admin-table-stats th:nth-child(14),
body.admin-page .admin-table-stats td:nth-child(14),
body.admin-page .admin-table-guests th:nth-child(13),
body.admin-page .admin-table-guests td:nth-child(13) {
  width: 13%;
}

body.admin-page .admin-table-guests th:nth-child(1),
body.admin-page .admin-table-guests td:nth-child(1) {
  width: 13%;
}

body.admin-page .admin-table-guests th:nth-child(4),
body.admin-page .admin-table-guests td:nth-child(4) {
  width: 15%;
}

body.admin-page .admin-table-users th:nth-child(1),
body.admin-page .admin-table-users td:nth-child(1),
body.admin-page .admin-table-models th:nth-child(1),
body.admin-page .admin-table-models td:nth-child(1) {
  width: 22%;
}

body.admin-page .admin-table-users th:nth-child(7),
body.admin-page .admin-table-users td:nth-child(7),
body.admin-page .admin-table-models th:nth-child(6),
body.admin-page .admin-table-models td:nth-child(6),
body.admin-page .admin-table-models th:nth-child(7),
body.admin-page .admin-table-models td:nth-child(7) {
  width: 15%;
}

.rank-1,
.rank-2,
.rank-3,
.win-rate,
.suspicious {
  font-weight: 700;
}

.rank-1 {
  color: #f2c05f;
}

.rank-2 {
  color: #b0bed1;
}

.rank-3 {
  color: #d79260;
}

.suspicious {
  color: var(--danger);
}

.admin-link {
  font-weight: 600;
}

.status-msg {
  min-height: 1.2em;
  font-size: 0.92rem;
}

/* Технічні блоки upload/admin: лог, drag-drop, підказки. */
.bench-log,
.progress-log,
.structure-hint {
  padding: var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-muted);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  white-space: pre-wrap;
}

.drop-zone {
  padding: var(--space-8) var(--space-4);
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius-sm);
  text-align: center;
  background: var(--surface-muted);
}

.drop-zone.dragover,
.drop-zone.has-file {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.drop-zone .icon {
  margin-bottom: var(--space-2);
  font-size: 1.5rem;
  font-weight: 700;
}

.track-item {
  padding: var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
}

/* Сторінка логіну і модальне вікно. */
.login-page {
  display: grid;
  place-items: center;
  padding: var(--space-6);
}

.login-wrap {
  width: min(420px, 100%);
}

.login-box {
  display: grid;
  gap: var(--space-4);
}

.field {
  display: grid;
  gap: var(--space-2);
}

/* `.visible` перемикає логін-скрипт. Не перейменовувати без оновлення JS. */
.error-msg {
  display: none;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--danger-border);
  border-radius: var(--radius-sm);
  background: var(--danger-soft);
  color: var(--danger);
}

.error-msg.visible {
  display: block;
}

/* `.open` перемикає admin-скрипт для модалки. */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 100;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  background: rgba(22, 24, 29, 0.42);
}

.modal-overlay.open {
  display: flex;
}

.modal-box {
  width: min(420px, 100%);
}

.tabs {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

/* `.tab-btn.active` і `.tab-panel.active` перемикає admin-скрипт. */
.tab-btn.active {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: rgba(95, 146, 255, 0.45);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: grid;
}

.pagination {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.stat-bar {
  display: inline-block;
  vertical-align: middle;
  width: 88px;
  height: 8px;
  margin-left: var(--space-2);
}

code {
  padding: 0.15rem 0.4rem;
  border-radius: 6px;
  background: var(--surface-strong);
}

/* Адаптивність. Дизайнер може переробити breakpoints, якщо збереже основну поведінку блоків. */
@media (max-width: 960px) {
  .site-header,
  .battle-intro,
  .setup-panel,
  .battle-coverage-head,
  .battle-grid,
  .battle-toolbar,
  .vote-buttons,
  .result-models {
    grid-template-columns: 1fr;
  }

  .site-header-nav {
    justify-items: start;
  }

  body.admin-page .container.app-container {
    width: calc(100% - 0.75rem);
  }
}

@media (max-width: 720px) {
  .container {
    width: calc(100% - 1rem);
  }

  .site-header,
  .card-surface,
  .card,
  .hero-section,
  .page-section,
  .setup-panel,
  .loading,
  .battle-arena,
  .voting-panel,
  .result-panel,
  .login-box,
  .modal-box,
  .filters,
  .tabs,
  .pagination {
    padding: var(--space-4);
  }

  .battle-intro-stats,
  .step-indicator,
  .battle-mode-categories {
    grid-template-columns: 1fr;
  }

  .battle-track-coverage-labels {
    align-items: flex-start;
    flex-direction: column;
  }

  .player-head,
  .player-controls,
  .track-item,
  .vote-pending,
  .modal-actions,
  .pagination {
    flex-direction: column;
    align-items: stretch;
  }

  .nav-btn,
  .btn,
  .btn-sm,
  .btn-vote,
  .page-btn,
  .tab-btn {
    width: 100%;
  }
}

@media (max-width: 1180px) {
  body.admin-page .admin-table-shell {
    overflow: visible;
  }

  body.admin-page .admin-table,
  body.admin-page .admin-table thead,
  body.admin-page .admin-table tbody,
  body.admin-page .admin-table tr,
  body.admin-page .admin-table th,
  body.admin-page .admin-table td {
    display: block;
    width: 100%;
  }

  body.admin-page .admin-table thead {
    display: none;
  }

  body.admin-page .admin-table tr {
    margin-bottom: 0.75rem;
    padding: 0.6rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface);
  }

  body.admin-page .admin-table td {
    display: grid;
    grid-template-columns: minmax(88px, 34%) minmax(0, 1fr);
    gap: 0.65rem;
    align-items: start;
    padding: 0.28rem 0;
    border-bottom: 1px dashed rgba(157, 172, 191, 0.12);
    overflow: visible;
    text-overflow: initial;
    white-space: normal;
    background: transparent;
  }

  body.admin-page .admin-table td:last-child {
    border-bottom: 0;
    padding-bottom: 0;
  }

  body.admin-page .admin-table td::before {
    content: attr(data-label);
    color: var(--text-muted);
    font-size: 0.67rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
  }

  body.admin-page .admin-table td:last-child button {
    width: auto;
  }

  body.admin-page .admin-table .stat-bar {
    width: 72px;
  }
}