:root {
  --bg: #07111f;
  --panel: rgba(10, 21, 38, 0.82);
  --panel-strong: rgba(13, 29, 52, 0.96);
  --line: rgba(158, 190, 233, 0.18);
  --text: #f5f7fb;
  --muted: #9db2ce;
  --ice: #87d0ff;
  --gold: #f6c453;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  --radius: 24px;
  color-scheme: dark;
  font-family: "Aptos", "Trebuchet MS", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(54, 122, 201, 0.28), transparent 35%),
    radial-gradient(circle at top right, rgba(246, 196, 83, 0.14), transparent 30%),
    linear-gradient(160deg, #030913 0%, #07111f 44%, #0d1d35 100%);
  color: var(--text);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 38px 38px;
  pointer-events: none;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.85), transparent);
}

button,
input,
select {
  font: inherit;
}

.page-shell {
  width: min(1400px, calc(100vw - 32px));
  margin: 24px auto 48px;
}

.layout {
  display: grid;
  gap: 24px;
}

.panel {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent), var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  animation: rise-in 420ms ease both;
}

.panel::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: 1px solid rgba(255, 255, 255, 0.04);
  pointer-events: none;
}

.hero {
  display: grid;
  gap: 18px;
  padding: 32px;
}

.hero h1 {
  margin: 12px 0 16px;
  max-width: 14ch;
  font-size: clamp(2.4rem, 4vw, 4.6rem);
  line-height: 0.95;
  letter-spacing: -0.06em;
  text-transform: uppercase;
}

.hero-text,
.muted-text,
.auth-note {
  color: var(--muted);
  line-height: 1.6;
}

.hero-dashboard {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  align-content: stretch;
}

.submission-lock-banner {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  padding: 18px 22px;
  border-radius: 22px;
  border: 1px solid rgba(246, 196, 83, 0.35);
  background:
    linear-gradient(135deg, rgba(246, 196, 83, 0.16), rgba(135, 208, 255, 0.08)),
    rgba(8, 18, 32, 0.82);
}

.submission-lock-banner h2 {
  margin: 8px 0 0;
  font-size: clamp(1.2rem, 2.2vw, 1.8rem);
  letter-spacing: -0.04em;
}

.submission-lock-banner.is-locked {
  border-color: rgba(255, 122, 122, 0.4);
  background:
    linear-gradient(135deg, rgba(255, 122, 122, 0.18), rgba(246, 196, 83, 0.08)),
    rgba(8, 18, 32, 0.82);
}

.submission-lock-copy {
  max-width: 52ch;
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.hero-card {
  display: grid;
  gap: 14px;
  padding: 22px;
  border-radius: 22px;
  background:
    linear-gradient(140deg, rgba(135, 208, 255, 0.14), rgba(246, 196, 83, 0.08)),
    rgba(8, 18, 32, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-card-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
}

.hero-card-head h2 {
  margin: 8px 0 0;
  font-size: 1.15rem;
}

.hero-card-meta,
.series-score-status,
.leaderboard-copy span {
  color: var(--muted);
}

.series-score-list,
.leaderboard-list {
  display: grid;
  gap: 10px;
}

.series-score-row,
.leaderboard-row {
  display: grid;
  gap: 12px;
  align-items: center;
  padding: 14px 16px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.035);
}

.series-score-row {
  grid-template-columns: minmax(0, 1fr) auto;
}

.series-score-row.is-complete {
  border-color: rgba(246, 196, 83, 0.32);
  background: rgba(246, 196, 83, 0.08);
}

.series-score-copy,
.leaderboard-copy,
.leaderboard-points {
  display: grid;
  gap: 4px;
}

.series-score-label {
  color: var(--ice);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.series-score-line,
.leaderboard-points strong {
  font-size: 1rem;
}

.series-score-status,
.leaderboard-points span {
  font-size: 0.84rem;
}

.leaderboard-row {
  grid-template-columns: auto minmax(0, 1fr) auto;
  width: 100%;
  text-align: left;
}

.leaderboard-row.is-current-user {
  border-color: rgba(135, 208, 255, 0.4);
  background: rgba(135, 208, 255, 0.08);
}

button.leaderboard-row {
  appearance: none;
  font: inherit;
  color: inherit;
  cursor: pointer;
}

.leaderboard-row.is-viewable {
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    background 160ms ease,
    box-shadow 160ms ease;
}

button.leaderboard-row.is-viewable:hover,
button.leaderboard-row.is-viewable:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(135, 208, 255, 0.42);
  background: rgba(135, 208, 255, 0.1);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.2);
}

button.leaderboard-row.is-viewable:focus-visible {
  outline: 2px solid rgba(135, 208, 255, 0.45);
  outline-offset: 2px;
}

.leaderboard-rank {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  font-weight: 700;
}

.hero-empty {
  padding: 18px;
  border-radius: 18px;
  border: 1px dashed rgba(255, 255, 255, 0.12);
  color: var(--muted);
  background: rgba(255, 255, 255, 0.03);
}

.eyebrow {
  margin: 0;
  color: var(--ice);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

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

.bracket-panel-actions {
  display: grid;
  gap: 12px;
  justify-items: end;
  max-width: 320px;
  text-align: right;
}

.section-head h2,
.section-head h3,
.series-head h3,
.history-copy h3 {
  margin: 8px 0 6px;
}

.auth-panel,
.control-panel,
.bracket-panel,
.history-panel {
  padding: 28px;
}

.auth-switch,
.toolbar,
.quick-actions,
.history-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.mode-pill,
.button {
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  padding: 12px 18px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  cursor: pointer;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    background 160ms ease;
}

.mode-pill:hover,
.button:hover,
.pick-tile:hover {
  transform: translateY(-1px);
  border-color: rgba(255, 255, 255, 0.24);
}

.mode-pill:disabled,
.button:disabled,
.pick-tile:disabled {
  cursor: not-allowed;
  opacity: 0.5;
  transform: none;
  border-color: rgba(255, 255, 255, 0.08);
}

.mode-pill.is-active,
.button-primary {
  background: linear-gradient(135deg, rgba(135, 208, 255, 0.24), rgba(255, 255, 255, 0.08));
  border-color: rgba(135, 208, 255, 0.45);
}

.button-ghost {
  background: transparent;
}

.auth-form,
.control-grid {
  display: grid;
  gap: 18px;
}

.control-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr)) auto;
  align-items: end;
  margin-top: 24px;
}

.input-group {
  display: grid;
  gap: 8px;
  color: var(--muted);
}

.input-group span {
  color: var(--text);
  font-size: 0.94rem;
}

.input-group input {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: 14px 16px;
  background: rgba(0, 0, 0, 0.22);
  color: var(--text);
}

.input-group input:focus {
  outline: 2px solid rgba(135, 208, 255, 0.38);
  outline-offset: 2px;
}

.app-panel {
  display: grid;
  gap: 24px;
}

.controls-head {
  align-items: center;
}

.champion-card {
  margin-top: 24px;
  padding: 22px;
  border-radius: 22px;
  background:
    linear-gradient(115deg, rgba(255, 255, 255, 0.08), transparent),
    linear-gradient(
      135deg,
      var(--champion-primary, rgba(135, 208, 255, 0.22)),
      var(--champion-secondary, rgba(13, 29, 52, 0.7))
    );
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.message-banner {
  padding: 16px 20px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.05);
}

.message-banner[data-tone="error"] {
  border-color: rgba(255, 122, 122, 0.45);
  color: #ffd6d6;
}

.message-banner[data-tone="success"] {
  border-color: rgba(135, 236, 177, 0.45);
  color: #d9ffe9;
}

.bracket-columns {
  overflow-x: auto;
  padding: 12px 0 8px;
}

.leaderboard-viewer {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: center;
  padding: 24px;
}

.leaderboard-viewer[hidden] {
  display: none;
}

.leaderboard-viewer-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(3, 9, 19, 0.72);
  backdrop-filter: blur(10px);
}

.leaderboard-viewer-dialog {
  position: relative;
  z-index: 1;
  width: min(1760px, calc(100vw - 32px));
  max-height: calc(100vh - 32px);
  display: grid;
  gap: 18px;
  padding: 28px;
  overflow: hidden;
}

.leaderboard-viewer-head {
  align-items: center;
}

.bracket-columns--viewer {
  overflow: auto;
  max-height: calc(100vh - 220px);
  padding: 8px 0 12px;
}

.bracket-tree-board {
  --tree-column-width: 260px;
  --tree-column-gap: 40px;
  --tree-row-gap: 18px;
  display: grid;
  gap: 20px;
  min-width: calc(var(--tree-column-width) * 7 + var(--tree-column-gap) * 6);
}

.tree-stage-labels,
.bracket-tree-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(var(--tree-column-width), 1fr));
  column-gap: var(--tree-column-gap);
}

.tree-stage-labels {
  align-items: center;
}

.tree-stage-label {
  grid-column: var(--tree-col);
  justify-self: center;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.bracket-tree-canvas {
  position: relative;
}

.bracket-tree-lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: visible;
}

.bracket-tree-path {
  fill: none;
  stroke: rgba(157, 178, 206, 0.5);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.bracket-tree-grid {
  position: relative;
  z-index: 1;
  row-gap: var(--tree-row-gap);
  grid-template-rows: repeat(9, minmax(64px, auto));
  align-items: center;
}

.tree-slot {
  grid-column: var(--tree-col);
  grid-row: var(--tree-row);
  min-width: 0;
}

.series-card {
  display: grid;
  gap: 14px;
  padding: 18px;
  border-radius: 20px;
  background: var(--panel-strong);
  border: 1px solid rgba(255, 255, 255, 0.08);
  animation: rise-in 420ms ease both;
}

.series-meta {
  color: var(--muted);
  font-size: 0.92rem;
}

.series-card--tree {
  gap: 12px;
  min-width: 0;
  padding: 16px;
  border-radius: 18px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), transparent),
    linear-gradient(180deg, rgba(7, 17, 31, 0.92), rgba(13, 29, 52, 0.96));
}

.series-card--tree .series-head {
  display: grid;
  gap: 4px;
}

.series-card--tree .series-head h3 {
  margin: 0;
  font-size: 1rem;
}

.series-card--tree .eyebrow {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
}

.series-card--tree .series-meta {
  min-height: 2.5em;
  font-size: 0.82rem;
}

.series-picks {
  display: grid;
  gap: 10px;
}

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

.series-card--tree .series-picks {
  grid-template-columns: repeat(2, minmax(104px, 1fr));
  gap: 10px;
}

.pick-tile {
  position: relative;
  display: grid;
  gap: 8px;
  min-height: 94px;
  padding: 16px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background:
    linear-gradient(125deg, rgba(255, 255, 255, 0.08), transparent),
    linear-gradient(
      135deg,
      var(--team-primary, rgba(255, 255, 255, 0.06)),
      var(--team-secondary, rgba(255, 255, 255, 0.02))
    );
  color: var(--text);
  text-align: left;
  cursor: pointer;
}

.series-card--tree .pick-tile {
  justify-items: center;
  align-content: center;
  min-height: 78px;
  padding: 12px;
  border-radius: 16px;
  text-align: center;
}

.pick-tile.is-selected {
  border-color: rgba(246, 196, 83, 0.75);
  box-shadow: 0 0 0 1px rgba(246, 196, 83, 0.4);
}

.pick-tile.is-locked {
  box-shadow: none;
}

.pick-tile.is-empty {
  cursor: default;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.03);
}

.team-abbr {
  width: fit-content;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: rgba(255, 255, 255, 0.12);
}

.series-card--tree .team-abbr {
  font-size: 0.68rem;
}

.pick-logo-wrap,
.winner-logo-wrap {
  display: grid;
  place-items: center;
}

.pick-logo-wrap {
  min-height: 62px;
}

.team-logo,
.winner-logo {
  display: block;
  width: auto;
  max-width: 88px;
  height: 56px;
  object-fit: contain;
  filter: drop-shadow(0 8px 18px rgba(0, 0, 0, 0.28));
}

.winner-logo {
  max-width: 104px;
  height: 68px;
}

.team-code,
.tree-winner-code {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  min-width: 48px;
  padding: 5px 11px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  color: var(--text);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.pick-name {
  font-weight: 700;
}

.series-card--tree .pick-name {
  font-size: 0.94rem;
}

.pick-helper {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.9rem;
}

.series-card--tree .pick-helper {
  font-size: 0.78rem;
  line-height: 1.35;
}

.series-card--round-one {
  min-height: 154px;
}

.series-card--round-two,
.series-card--conference-final {
  min-height: 154px;
}

.series-card--final {
  min-height: 168px;
  border-color: rgba(246, 196, 83, 0.45);
  background:
    linear-gradient(145deg, rgba(246, 196, 83, 0.14), rgba(135, 208, 255, 0.08)),
    linear-gradient(180deg, rgba(7, 17, 31, 0.96), rgba(13, 29, 52, 0.98));
  box-shadow:
    0 20px 48px rgba(0, 0, 0, 0.32),
    0 0 0 1px rgba(246, 196, 83, 0.16);
}

.tree-slot--winner {
  display: flex;
  align-items: center;
  justify-content: center;
}

.tree-winner-card {
  width: min(100%, 220px);
  display: grid;
  justify-items: center;
  gap: 10px;
  padding: 16px 18px;
  border-radius: 18px;
  border: 1px solid rgba(246, 196, 83, 0.4);
  background:
    linear-gradient(145deg, rgba(246, 196, 83, 0.12), rgba(255, 255, 255, 0.04)),
    rgba(7, 17, 31, 0.88);
  text-align: center;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.28);
}

.tree-winner-card.is-pending {
  border-color: rgba(255, 255, 255, 0.1);
}

.tree-winner-label {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.history-list {
  display: grid;
  gap: 14px;
}

.history-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  padding: 18px 20px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
  animation: rise-in 420ms ease both;
}

.history-card.is-current {
  border-color: rgba(135, 208, 255, 0.4);
  background: rgba(135, 208, 255, 0.08);
}

.history-copy p {
  margin: 6px 0 0;
  color: var(--muted);
}

.history-stats {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.92rem;
}

.history-stat--score {
  color: var(--text);
  font-weight: 700;
}

.history-empty {
  padding: 22px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px dashed rgba(255, 255, 255, 0.12);
  color: var(--muted);
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1120px) {
  .control-grid,
  .history-card {
    grid-template-columns: 1fr;
  }

  .toolbar,
  .quick-actions,
  .history-actions {
    width: 100%;
  }

  .toolbar .button,
  .quick-actions .button,
  .history-actions .button {
    flex: 1 1 180px;
  }

  .bracket-tree-board {
    --tree-column-width: 244px;
    --tree-column-gap: 32px;
  }

  .hero-dashboard {
    grid-template-columns: 1fr;
  }

  .submission-lock-banner {
    flex-direction: column;
    align-items: flex-start;
  }

  .series-score-row,
  .leaderboard-row {
    grid-template-columns: 1fr;
  }

  .series-card--tree .series-picks {
    grid-template-columns: repeat(2, minmax(96px, 1fr));
  }
}

@media (max-width: 980px) {
  .bracket-tree-board {
    --tree-column-width: 228px;
    --tree-column-gap: 28px;
    --tree-row-gap: 14px;
  }

  .series-card--tree .series-picks {
    grid-template-columns: repeat(2, minmax(88px, 1fr));
  }
}

@media (max-width: 780px) {
  .page-shell {
    width: min(100vw - 20px, 100%);
    margin-top: 12px;
  }

  .hero,
  .auth-panel,
  .control-panel,
  .bracket-panel,
  .history-panel {
    padding: 20px;
  }

  .section-head,
  .controls-head {
    flex-direction: column;
  }

  .leaderboard-viewer {
    padding: 12px;
  }

  .leaderboard-viewer-dialog {
    width: min(100vw - 16px, 100%);
    max-height: calc(100vh - 16px);
    padding: 20px;
  }

  .leaderboard-viewer-head {
    align-items: flex-start;
  }

  .bracket-columns--viewer {
    max-height: calc(100vh - 200px);
  }

  .hero-card-head {
    flex-direction: column;
  }

  .bracket-panel-actions {
    justify-items: start;
    text-align: left;
    max-width: none;
  }

  .bracket-tree-board {
    --tree-column-width: 228px;
    --tree-column-gap: 24px;
  }

  .series-card--tree .series-picks {
    grid-template-columns: repeat(2, minmax(88px, 1fr));
  }

  .team-logo,
  .winner-logo {
    max-width: 78px;
  }

  .series-picks {
    grid-template-columns: 1fr;
  }
}