:root {
  --bg: #0f172a;
  --bg-soft: #111827;
  --panel: #1f2937;
  --panel-strong: #374151;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --accent: #60a5fa;
  --accent-strong: #3b82f6;
  --success: #34d399;
  --danger: #f87171;
  --shadow: rgba(15, 23, 42, 0.35);
}

body[data-theme="sunset"] {
  --bg: #2b1d18;
  --bg-soft: #3d241f;
  --panel: #4b2e2a;
  --panel-strong: #5f3934;
  --text: #fff3eb;
  --muted: #f7c0a1;
  --accent: #f59e0b;
  --accent-strong: #ea580c;
  --success: #86efac;
  --danger: #fca5a5;
  --shadow: rgba(62, 26, 13, 0.38);
}

body[data-theme="forest"] {
  --bg: #081b12;
  --bg-soft: #102b1d;
  --panel: #163625;
  --panel-strong: #224933;
  --text: #ebfff4;
  --muted: #b7e7c4;
  --accent: #4ade80;
  --accent-strong: #22c55e;
  --success: #6ee7b7;
  --danger: #fca5a5;
  --shadow: rgba(7, 22, 13, 0.4);
}

body[data-theme="lavender"] {
  --bg: #17142a;
  --bg-soft: #241f3d;
  --panel: #312a4d;
  --panel-strong: #453b6d;
  --text: #f4f0ff;
  --muted: #d7caef;
  --accent: #a78bfa;
  --accent-strong: #8b5cf6;
  --success: #a7f3d0;
  --danger: #fda4af;
  --shadow: rgba(17, 10, 33, 0.42);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--bg), var(--bg-soft) 45%, var(--bg));
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  transition: background 0.25s ease, color 0.25s ease;
}

.auth-shell {
  width: min(520px, calc(100% - 24px));
  margin: 24px auto;
}

.auth-card {
  background: rgba(17, 24, 39, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 20px;
  box-shadow: 0 25px 60px var(--shadow);
  padding: 22px;
}

.auth-header {
  margin-bottom: 14px;
}

.auth-switch {
  display: grid;
  grid-template-columns: repeat(2, minmax(120px, 1fr));
  gap: 10px;
  margin-bottom: 16px;
}

.auth-switch button.active {
  background: var(--accent-strong);
}

.auth-form,
.account-panel {
  display: grid;
  gap: 12px;
}

.auth-form input {
  margin-bottom: 0;
}

.account-panel {
  padding-top: 8px;
}

.app-account-panel {
  margin-bottom: 18px;
  padding: 14px 16px;
}

.account-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.account-meta {
  color: var(--muted);
  font-size: 0.9rem;
}

.account-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(100px, 1fr));
  gap: 12px;
}

.auth-hint {
  min-height: 18px;
  font-size: 0.78rem;
  color: var(--muted);
}

.auth-hint.error {
  color: var(--danger);
}

.auth-hint.success {
  color: var(--success);
}

.profile-editor {
  display: grid;
  gap: 10px;
  background: rgba(15, 23, 42, 0.35);
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 12px;
  padding: 12px;
}

.account-actions,
.profile-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.achievement-box {
  background: rgba(15, 23, 42, 0.35);
  border-radius: 12px;
  border: 1px solid rgba(148, 163, 184, 0.18);
  padding: 12px;
}

.achievement-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.admin-tools {
  margin-top: 14px;
  background: rgba(15, 23, 42, 0.35);
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 12px;
  padding: 12px;
}

.admin-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.achievement-badge {
  display: inline-flex;
  align-items: center;
  padding: 7px 10px;
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 700;
  background: rgba(148, 163, 184, 0.12);
  color: var(--muted);
}

.achievement-badge.unlocked {
  background: rgba(52, 211, 153, 0.16);
  color: var(--success);
}

.app {
  width: min(980px, calc(100% - 24px));
  background: rgba(17, 24, 39, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 20px;
  box-shadow: 0 25px 60px var(--shadow);
  padding: 24px;
}

.topbar,
.controls,
.custom-header,
.leaderboard-header,
.leaderboard-inputs,
.header-actions,
.inline-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.topbar {
  margin-bottom: 18px;
}

.header-actions {
  flex-wrap: wrap;
}

.eyebrow {
  margin: 0 0 6px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  font-size: 12px;
}

h1 {
  margin: 0;
  font-size: clamp(1.8rem, 1.5rem + 1vw, 2.8rem);
}

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

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

button,
select,
input {
  border-radius: 10px;
}

button {
  border: none;
  font-weight: 700;
  padding: 10px 16px;
  cursor: pointer;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

button:hover {
  transform: translateY(-1px);
  opacity: 0.96;
}

.primary,
.secondary {
  background: var(--accent);
  color: white;
}

.ghost {
  background: rgba(148, 163, 184, 0.16);
  color: var(--text);
}

.controls {
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.battle-panel,
.daily-panel,
.panel-block {
  background: var(--panel);
  border: 1px solid rgba(148, 163, 184, 0.15);
  border-radius: 16px;
}

.battle-panel {
  padding: 16px 18px;
  margin-bottom: 18px;
}

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

.battle-status {
  color: var(--muted);
  font-weight: 700;
  font-size: 0.8rem;
}

.battle-progress-wrap {
  display: grid;
  gap: 10px;
}

.battle-labels {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.battle-progress {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  align-items: center;
}

.battle-bar {
  width: 0%;
  height: 14px;
  border-radius: 999px;
  transition: width 0.18s ease;
}

.player-bar {
  background: linear-gradient(90deg, var(--accent), var(--success));
}

.cpu-bar {
  background: linear-gradient(90deg, #f59e0b, #ef4444);
}

.daily-panel {
  padding: 16px 18px;
  margin-bottom: 18px;
}

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

.daily-header {
  margin-bottom: 10px;
}

.daily-text {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.insights-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 18px;
  margin-bottom: 18px;
}

.panel-block {
  padding: 14px 16px;
}

.weekly-chart {
  display: grid;
  grid-template-columns: repeat(7, minmax(36px, 1fr));
  align-items: end;
  gap: 10px;
  height: 150px;
  margin-top: 12px;
}

.chart-day {
  display: flex;
  flex-direction: column;
  justify-content: end;
  align-items: center;
  gap: 8px;
  height: 100%;
}

.chart-bar {
  width: 100%;
  min-height: 10px;
  border-radius: 10px 10px 4px 4px;
  background: linear-gradient(180deg, var(--accent), var(--accent-strong));
  box-shadow: 0 10px 20px rgba(96, 165, 250, 0.16);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 6px;
  color: white;
  font-size: 0.7rem;
  font-weight: 700;
}

.chart-day small {
  color: var(--muted);
  font-size: 0.7rem;
}

.history-list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.history-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: rgba(15, 23, 42, 0.35);
  border: 1px solid rgba(148, 163, 184, 0.12);
  border-radius: 10px;
  padding: 9px 10px;
  color: var(--text);
}

.history-list li.empty {
  display: block;
  color: var(--muted);
  text-align: center;
}

.history-meta {
  display: grid;
  gap: 2px;
  font-size: 0.72rem;
  color: var(--muted);
}

.history-score {
  font-weight: 700;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(100px, 1fr));
  gap: 12px;
  margin: 18px 0 20px;
}

.compact {
  min-height: 88px;
}

.progress-panel {
  background: var(--panel);
  border: 1px solid rgba(148, 163, 184, 0.15);
  border-radius: 16px;
  padding: 14px 16px 12px;
  margin-bottom: 18px;
}

.progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.progress-track {
  width: 100%;
  height: 12px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.14);
}

.progress-fill {
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--accent-strong));
  transition: width 0.15s ease;
  box-shadow: 0 0 14px rgba(96, 165, 250, 0.5);
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 180px;
  flex: 1;
}

label {
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

select,
input,
textarea {
  width: 100%;
  background: rgba(15, 23, 42, 0.8);
  color: var(--text);
  border: 1px solid rgba(148, 163, 184, 0.2);
  padding: 10px 12px;
  outline: none;
}

select:focus,
input:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.18);
}

.custom-panel,
.leaderboard-panel,
.text-panel,
.stat-box {
  background: var(--panel);
  border: 1px solid rgba(148, 163, 184, 0.15);
  border-radius: 16px;
}

.custom-panel {
  padding: 14px 16px;
  margin-bottom: 18px;
}

.custom-header {
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.inline-actions {
  flex-wrap: wrap;
}

textarea {
  resize: vertical;
  min-height: 120px;
  border-radius: 12px;
  padding: 14px 16px;
  font-size: 1rem;
  line-height: 1.7;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(100px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.stat-box {
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.label {
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.stat-box strong {
  font-size: clamp(1.3rem, 1rem + 0.8vw, 2rem);
}

.text-panel {
  padding: 18px 20px;
  margin-bottom: 16px;
}

.quote {
  margin: 0;
  line-height: 1.8;
  font-size: clamp(1.05rem, 0.9rem + 0.7vw, 1.4rem);
  color: var(--text);
}

.quote span {
  border-radius: 4px;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.quote .correct {
  color: var(--success);
}

.quote .incorrect {
  background: rgba(248, 113, 113, 0.2);
  color: var(--danger);
}

.quote .current {
  background: rgba(96, 165, 250, 0.28);
  box-shadow: inset 0 -2px 0 var(--accent);
}

#typingInput {
  min-height: 150px;
  border-radius: 14px;
  padding: 18px 16px;
  font-size: 1.02rem;
  line-height: 1.7;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

#typingInput.flash-correct {
  border-color: var(--success);
  box-shadow: 0 0 0 3px rgba(52, 211, 153, 0.2);
}

#typingInput.flash-wrong {
  border-color: var(--danger);
  box-shadow: 0 0 0 3px rgba(248, 113, 113, 0.2);
}

.message {
  margin-top: 14px;
  min-height: 24px;
  color: var(--muted);
  font-weight: 600;
}

.message.success {
  color: var(--success);
}

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

.leaderboard-panel {
  margin-top: 22px;
  padding: 16px 18px;
}

.modal {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(2, 6, 23, 0.7);
  backdrop-filter: blur(4px);
  z-index: 20;
}

.modal.hidden {
  display: none;
}

.modal-card {
  width: min(420px, calc(100% - 24px));
  background: var(--panel);
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: 20px;
  box-shadow: 0 25px 60px rgba(2, 6, 23, 0.45);
  padding: 18px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.modal-header h3 {
  margin: 0;
  font-size: 1.3rem;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(100px, 1fr));
  gap: 12px;
}

.summary-grid > div {
  background: rgba(15, 23, 42, 0.35);
  border-radius: 12px;
  padding: 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.summary-note {
  margin: 18px 0 0;
  color: var(--muted);
  font-weight: 600;
}

.leaderboard-header {
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.leaderboard-inputs {
  flex-wrap: wrap;
}

#playerName {
  width: 180px;
}

.leaderboard-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}

.leaderboard-list li {
  display: grid;
  grid-template-columns: 42px minmax(80px, 1fr) auto auto;
  gap: 10px;
  align-items: center;
  padding: 10px 12px;
  background: rgba(15, 23, 42, 0.35);
  border-radius: 10px;
  color: var(--text);
}

.leaderboard-list li.empty {
  display: block;
  color: var(--muted);
}

.leaderboard-list strong {
  font-weight: 700;
}

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

.hidden {
  display: none !important;
}

@media (max-width: 640px) {
  .app {
    padding: 18px 16px;
  }

  .topbar,
  .leaderboard-header,
  .custom-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .header-actions,
  .leaderboard-inputs,
  .inline-actions {
    width: 100%;
  }

  .header-actions > *,
  .leaderboard-inputs > *,
  .inline-actions > * {
    flex: 1;
  }

  .stats,
  .dashboard-grid,
  .insights-grid {
    grid-template-columns: repeat(2, minmax(100px, 1fr));
  }

  .insights-grid {
    display: grid;
  }

  #playerName {
    width: 100%;
  }
}