/* Glaze Rush — Styles (based on DerpyDonut design system) */

:root {
  --bg: #f7f3ea;
  --surface: #fffdf9;
  --ink: #2b2b2b;
  --ink-light: #666;
  --accent: #40636d;
  --accent-hover: #345058;
  --border: #e0d8cc;
  --success: #4CAF50;
  --danger: #e74c3c;
  --radius: 10px;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
  --font: "Avenir Next", "Segoe UI", system-ui, sans-serif;
}

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
  -webkit-tap-highlight-color: transparent;
}

/* ─── Layout ─────────────────────────────────────────────── */

.app {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 16px;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}

header .logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--ink);
}

header .logo img {
  width: 36px;
  height: 36px;
  border-radius: 50%;
}

header .logo span {
  font-weight: 600;
  font-size: 18px;
}

header nav {
  display: flex;
  gap: 16px;
  align-items: center;
  font-size: 14px;
}

header nav a {
  color: var(--ink-light);
  text-decoration: none;
}

header nav a:hover {
  color: var(--accent);
}

header nav button {
  background: none;
  border: none;
  color: var(--ink-light);
  cursor: pointer;
  font-family: var(--font);
  font-size: 14px;
}

header nav button:hover {
  color: var(--accent);
}

.session-user {
  color: var(--ink-light);
  font-size: 14px;
}

/* ─── Screens ────────────────────────────────────────────── */

.screen {
  display: none;
}

.screen.active {
  display: block;
}

/* ─── Login Screen ───────────────────────────────────────── */

#login-screen {
  text-align: center;
  padding-top: 40px;
}

#login-screen .login-logo {
  width: 100px;
  margin-bottom: 16px;
}

#login-screen h2 {
  margin-bottom: 8px;
}

#login-screen p {
  color: var(--ink-light);
  margin-bottom: 24px;
}

.login-form {
  max-width: 300px;
  margin: 0 auto;
}

.login-form input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 15px;
  margin-bottom: 10px;
  background: var(--surface);
}

.login-form input:focus {
  outline: none;
  border-color: var(--accent);
}

.login-form .hint {
  font-size: 12px;
  color: var(--ink-light);
  margin-bottom: 16px;
}

/* ─── Buttons ────────────────────────────────────────────── */

.btn {
  display: inline-block;
  padding: 10px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  font-family: var(--font);
  font-size: 15px;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s;
}

.btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

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

.btn.primary:hover {
  background: var(--accent-hover);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* ─── Home Screen ────────────────────────────────────────── */

#home-screen {
  text-align: center;
}

#home-screen .home-logo {
  width: 80px;
  margin: 16px auto;
}

#home-screen h1 {
  font-size: 28px;
  margin-bottom: 4px;
}

#home-screen .lead {
  color: var(--ink-light);
  margin-bottom: 24px;
  font-size: 15px;
}

.selectors {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.selectors label {
  font-size: 13px;
  color: var(--ink-light);
  display: block;
  margin-bottom: 4px;
}

.selectors select {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 14px;
  background: var(--surface);
  min-width: 140px;
}

.home-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

/* ─── Leaderboard Section ────────────────────────────────── */

.leaderboards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  max-width: 500px;
  margin: 0 auto 32px;
}

.leaderboard-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  text-align: left;
}

.leaderboard-card h3 {
  font-size: 14px;
  color: var(--ink-light);
  margin-bottom: 8px;
}

.leaderboard-card ol {
  padding-left: 20px;
  font-size: 14px;
}

.leaderboard-card li {
  margin-bottom: 2px;
}

.leaderboard-card .rank-name {
  font-weight: 500;
}

.leaderboard-card .rank-value {
  color: var(--ink-light);
  float: right;
}

/* ─── Levels Screen ──────────────────────────────────────── */

#levels-screen h2 {
  text-align: center;
  margin-bottom: 4px;
}

#levels-screen .subtitle {
  text-align: center;
  color: var(--ink-light);
  margin-bottom: 16px;
  font-size: 14px;
}

.level-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(48px, 1fr));
  gap: 8px;
  max-width: 500px;
  margin: 0 auto 24px;
}

.level-btn {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  cursor: pointer;
  font-family: var(--font);
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  position: relative;
  transition: all 0.15s;
}

.level-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.level-btn.completed {
  background: #FFF8E1;
  border-color: #F4C430;
}

.level-btn.completed::after {
  content: '';
  position: absolute;
  top: 2px;
  right: 2px;
  width: 10px;
  height: 10px;
  background: #F4C430;
  border-radius: 50%;
}

/* ─── Puzzle Screen ──────────────────────────────────────── */

#puzzle-screen {
  text-align: center;
}

.puzzle-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  font-size: 14px;
}

.puzzle-header .puzzle-info {
  color: var(--ink-light);
}

.puzzle-header .timer {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  font-size: 18px;
}

.puzzle-header .moves {
  color: var(--ink-light);
}

.canvas-container {
  display: flex;
  justify-content: center;
  margin-bottom: 12px;
  overflow: auto;
}

#game-canvas {
  cursor: pointer;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.puzzle-controls {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-bottom: 16px;
}

.puzzle-controls .btn {
  padding: 8px 14px;
  font-size: 13px;
}

/* ─── Puzzle Leaderboard Sidebar ─────────────────────────── */

.puzzle-leaderboard {
  max-width: 300px;
  margin: 0 auto;
}

.puzzle-leaderboard h3 {
  font-size: 14px;
  color: var(--ink-light);
  margin-bottom: 8px;
}

.puzzle-leaderboard table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.puzzle-leaderboard th {
  text-align: left;
  color: var(--ink-light);
  font-weight: 500;
  padding: 4px 8px;
  border-bottom: 1px solid var(--border);
}

.puzzle-leaderboard td {
  padding: 4px 8px;
}

.puzzle-leaderboard tr.highlight {
  background: #FFF8E1;
}

/* ─── Solved Modal ───────────────────────────────────────── */

.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 100;
  align-items: center;
  justify-content: center;
}

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

.modal {
  background: var(--surface);
  border-radius: calc(var(--radius) * 2);
  padding: 32px;
  max-width: 400px;
  width: 90%;
  text-align: center;
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}

.modal h2 {
  font-size: 24px;
  margin-bottom: 8px;
}

.modal .solved-time {
  font-size: 32px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  margin-bottom: 4px;
}

.modal .solved-best {
  color: var(--ink-light);
  font-size: 14px;
  margin-bottom: 4px;
}

.modal .solved-moves {
  color: var(--ink-light);
  font-size: 14px;
  margin-bottom: 16px;
}

.modal .solved-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-top: 16px;
}

/* ─── Toast ──────────────────────────────────────────────── */

#toast-container {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
}

.toast {
  background: var(--ink);
  color: #fff;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-size: 14px;
  margin-top: 8px;
  animation: toast-in 0.3s ease, toast-out 0.3s ease 2.5s forwards;
}

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

@keyframes toast-out {
  from { opacity: 1; }
  to { opacity: 0; }
}

/* ─── Version Footer ─────────────────────────────────────── */

.app-version {
  text-align: center;
  color: var(--ink-light);
  font-size: 12px;
  padding: 16px 0 8px;
  opacity: 0.5;
}

/* ─── Responsive ─────────────────────────────────────────── */

@media (max-width: 600px) {
  header { padding: 8px 0; }
  header .logo span { font-size: 16px; }
  header nav { gap: 10px; font-size: 13px; }
  #home-screen h1 { font-size: 22px; }
  .leaderboards { grid-template-columns: 1fr; }
  .puzzle-header { font-size: 13px; }
  .puzzle-header .timer { font-size: 16px; }
}