:root {
  --bg: #0D1B2A;
  --bg2: #1B263B;
  --bg3: #243447;
  --text: #E0E6ED;
  --text-dim: #90A4AE;
  --accent: #FFD54F;
  --accent2: #4FC3F7;
  --danger: #EF5350;
  --success: #66BB6A;
  --mountain: #5D4037;
  --plain: #7CB342;
  --water: #29B6F6;
  --city: #FFD54F;
  --border: #1E3A5F;
}

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

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
}

/* ========== UTILITIES ========== */
.hidden { display: none !important; }
.btn {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 20px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.95rem;
  transition: all 0.2s;
  font-weight: 500;
}
.btn:hover { background: #2A4A6F; border-color: var(--accent2); }
.btn-primary {
  background: linear-gradient(135deg, #FF8F00, #FFD54F);
  color: #0D1B2A;
  border: none;
  font-weight: 700;
}
.btn-primary:hover { filter: brightness(1.1); }
.btn-danger { background: #C62828; border-color: #EF5350; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

/* ========== SCREENS ========== */
.screen {
  min-height: 100vh;
  display: none;
  flex-direction: column;
}
.screen.active { display: flex; }

/* ========== AUTH ========== */
#screen-auth {
  justify-content: center;
  align-items: center;
  background: radial-gradient(ellipse at center, #1B263B 0%, #0D1B2A 70%);
}
.auth-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.auth-card h1 {
  text-align: center;
  color: var(--accent);
  font-size: 1.8rem;
  margin-bottom: 8px;
}
.auth-card .subtitle {
  text-align: center;
  color: var(--text-dim);
  margin-bottom: 30px;
  font-size: 0.95rem;
}
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.9rem;
  color: var(--text-dim);
}
.form-group input {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 1rem;
}
.form-group input:focus {
  outline: none;
  border-color: var(--accent2);
}
.auth-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
}
.auth-tabs button {
  flex: 1;
  padding: 10px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  border-radius: 8px;
  cursor: pointer;
}
.auth-tabs button.active {
  background: var(--bg3);
  color: var(--accent);
  border-color: var(--accent);
}
.auth-error {
  background: rgba(239,83,80,0.15);
  border: 1px solid var(--danger);
  color: #FFCDD2;
  padding: 10px;
  border-radius: 8px;
  margin-bottom: 16px;
  font-size: 0.9rem;
  display: none;
}
.auth-error.show { display: block; }

/* ========== HOMEPAGE ========== */
#screen-home header {
  padding: 20px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border);
  background: #0A1420;
}
.logo {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 10px;
}
.user-info {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.95rem;
}
.user-info .username { color: var(--accent2); font-weight: 600; }

.home-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  gap: 40px;
}
.home-title {
  font-size: 2.2rem;
  color: var(--accent);
  text-align: center;
}
.home-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  max-width: 900px;
  width: 100%;
}
.home-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px 20px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
}
.home-card:hover {
  border-color: var(--accent2);
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.3);
}
.home-card .icon { font-size: 2.4rem; margin-bottom: 12px; }
.home-card h3 { font-size: 1.15rem; margin-bottom: 6px; }
.home-card p { font-size: 0.85rem; color: var(--text-dim); }
.home-card.disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.home-card.disabled:hover { transform: none; border-color: var(--border); }

/* ========== SETUP PARTITA ========== */
#screen-setup {
  justify-content: center;
  align-items: center;
  padding: 20px;
}
.setup-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px;
  width: 100%;
  max-width: 520px;
}
.setup-card h2 {
  color: var(--accent);
  margin-bottom: 8px;
  text-align: center;
}
.setup-card .desc {
  text-align: center;
  color: var(--text-dim);
  margin-bottom: 28px;
  font-size: 0.95rem;
}
.setup-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 22px;
  padding: 14px 16px;
  background: var(--bg);
  border-radius: 10px;
  border: 1px solid var(--border);
}
.setup-row label { font-weight: 500; }
.setup-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}
.setup-controls button {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.setup-controls button:hover { background: #2A4A6F; }
.setup-controls .value {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent);
  min-width: 30px;
  text-align: center;
}
.setup-summary {
  background: rgba(79,195,247,0.08);
  border: 1px solid var(--accent2);
  border-radius: 10px;
  padding: 14px;
  margin: 20px 0;
  font-size: 0.9rem;
  text-align: center;
}
.setup-actions {
  display: flex;
  gap: 12px;
  margin-top: 10px;
}
.setup-actions .btn { flex: 1; }

/* ========== DRAFT ========== */
#screen-draft {
  padding: 20px;
}
.draft-header {
  text-align: center;
  margin-bottom: 24px;
}
.draft-header h2 { color: var(--accent); margin-bottom: 6px; }
.draft-status {
  font-size: 1rem;
  color: var(--accent2);
  margin-bottom: 8px;
}
.draft-turn-info {
  font-size: 0.9rem;
  color: var(--text-dim);
}
.packs-container {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 30px;
}
.pack {
  background: var(--bg2);
  border: 2px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  width: 280px;
  transition: all 0.2s;
}
.pack.active-pack {
  border-color: var(--accent);
  box-shadow: 0 0 20px rgba(255,213,79,0.2);
}
.pack-header {
  text-align: center;
  margin-bottom: 12px;
  font-weight: 700;
  font-size: 1.05rem;
}
.pack-cards {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.draft-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  cursor: pointer;
  transition: all 0.15s;
}
.draft-card:hover:not(.taken) {
  border-color: var(--accent2);
  background: var(--bg3);
}
.draft-card.taken {
  opacity: 0.35;
  cursor: not-allowed;
}
.draft-card .card-name { font-weight: 600; margin-bottom: 4px; }
.draft-card .card-meta {
  font-size: 0.8rem;
  color: var(--text-dim);
  display: flex;
  justify-content: space-between;
}
.color-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-right: 6px;
}
.color-white { background: #ECEFF1; }
.color-red { background: #EF5350; }
.color-black { background: #616161; }
.color-blue { background: #42A5F5; }
.color-green { background: #66BB6A; }
.color-yellow { background: #FFEE58; }

.player-picks {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 20px;
}
.pick-column {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  min-width: 200px;
}
.pick-column h4 {
  text-align: center;
  margin-bottom: 10px;
  font-size: 0.95rem;
}
.pick-column.human h4 { color: var(--accent); }
.pick-column.ai h4 { color: var(--text-dim); }
.picked-card {
  font-size: 0.85rem;
  padding: 6px 8px;
  background: var(--bg);
  border-radius: 6px;
  margin-bottom: 6px;
}

/* ========== GAME SCREEN ========== */
#screen-game {
  height: 100vh;
  overflow: hidden;
}
.game-layout {
  display: grid;
  grid-template-columns: 280px 1fr 300px;
  height: 100vh;
}
.game-sidebar {
  background: #0A1420;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}
.game-sidebar.right { border-right: none; border-left: 1px solid var(--border); }

.entity-panel {
  padding: 12px;
  border-bottom: 1px solid var(--border);
}
.entity-panel.active-turn {
  background: rgba(255,213,79,0.08);
  border-left: 3px solid var(--accent);
}
.entity-name {
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 4px;
}
.entity-name.human { color: var(--accent); }
.entity-name.ai { color: #90CAF9; }
.entity-name.fallen { color: #78909C; text-decoration: line-through; }
.entity-stats {
  display: flex;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--text-dim);
}
.entity-stats span { display: flex; align-items: center; gap: 4px; }

.game-center {
  display: flex;
  flex-direction: column;
  background: var(--bg);
}
.game-topbar {
  padding: 10px 16px;
  background: #0A1420;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.turn-info {
  font-size: 1rem;
  font-weight: 600;
}
.mana-display {
  display: flex;
  gap: 16px;
  font-size: 0.95rem;
}
.mana-display strong { color: var(--accent); }

#gameCanvas {
  flex: 1;
  width: 100%;
  background: #0D1B2A;
  cursor: grab;
}
#gameCanvas:active { cursor: grabbing; }

.game-hand {
  background: #0A1420;
  border-top: 1px solid var(--border);
  padding: 10px;
  display: flex;
  gap: 10px;
  overflow-x: auto;
  min-height: 130px;
}
.hand-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  min-width: 140px;
  max-width: 160px;
  cursor: pointer;
  transition: all 0.15s;
  flex-shrink: 0;
}
.hand-card:hover {
  border-color: var(--accent2);
  transform: translateY(-4px);
}
.hand-card .name { font-weight: 600; font-size: 0.9rem; margin-bottom: 4px; }
.hand-card .meta { font-size: 0.75rem; color: var(--text-dim); }
.hand-card .cost {
  position: absolute;
  top: 6px;
  right: 8px;
  background: var(--bg);
  border-radius: 50%;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
}

.log-panel {
  padding: 12px;
  flex: 1;
  overflow-y: auto;
  font-size: 0.85rem;
}
.log-entry {
  padding: 6px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  color: var(--text-dim);
}
.log-entry.important { color: var(--accent2); }

/* Responsive */
@media (max-width: 900px) {
  .game-layout {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr auto;
  }
  .game-sidebar { display: none; }
}


/* ========== BUSTINE SIGILLATE (solo colore) ========== */
.pack-sealed {
  min-width: 180px;
  max-width: 220px;
}
.pack-sealed-inner {
  border-radius: 12px;
  padding: 36px 16px;
  text-align: center;
  border: 2px solid rgba(255,255,255,0.15);
  min-height: 140px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
}
.pack-sealed-label {
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  opacity: 0.7;
  font-weight: 600;
}
.pack-sealed-color {
  font-size: 1.4rem;
  font-weight: 800;
  text-transform: uppercase;
}
.pack-sealed-hint {
  font-size: 0.8rem;
  opacity: 0.6;
}
.color-bg-white { background: linear-gradient(145deg, #ECEFF1, #B0BEC5); color: #263238; }
.color-bg-red { background: linear-gradient(145deg, #EF5350, #C62828); color: #fff; }
.color-bg-black { background: linear-gradient(145deg, #616161, #212121); color: #fff; }
.color-bg-blue { background: linear-gradient(145deg, #42A5F5, #1565C0); color: #fff; }
.color-bg-green { background: linear-gradient(145deg, #66BB6A, #2E7D32); color: #fff; }
.color-bg-yellow { background: linear-gradient(145deg, #FFEE58, #F9A825); color: #333; }

/* ========== RESPONSIVE / VIEWPORT ========== */
html, body {
  width: 100%;
  height: 100%;
  overflow-x: hidden;
}
#screen-game {
  height: 100dvh;
  height: 100vh;
}
.game-layout {
  height: 100%;
  max-height: 100dvh;
}
#gameCanvas {
  width: 100% !important;
  height: 100% !important;
  max-height: calc(100dvh - 180px);
}
.game-hand {
  max-height: 140px;
}
@media (max-width: 1100px) {
  .game-layout {
    grid-template-columns: 200px 1fr 220px;
  }
}
@media (max-width: 800px) {
  .game-layout {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr auto;
  }
  .game-sidebar { max-height: 120px; }
  .game-sidebar.right { display: none; }
  #gameCanvas { max-height: calc(100dvh - 260px); }
}
@media (max-height: 700px) {
  .game-hand { min-height: 90px; max-height: 100px; }
  .hand-card { min-width: 110px; max-width: 130px; padding: 6px; }
}


/* ========== MAPPA PIÙ GRANDE / FULL VIEWPORT ========== */
#screen-game {
  height: 100dvh !important;
  height: 100vh !important;
  max-height: 100dvh;
}
.game-layout {
  height: 100% !important;
  grid-template-columns: minmax(160px, 220px) 1fr minmax(180px, 260px);
}
.game-center {
  min-height: 0;
  display: flex;
  flex-direction: column;
}
#gameCanvas {
  flex: 1 1 auto !important;
  min-height: 50vh !important;
  width: 100% !important;
  height: auto !important;
  max-height: none !important;
}
.game-hand {
  flex: 0 0 auto;
  max-height: 130px;
}
.game-sidebar {
  overflow-y: auto;
  max-height: 100%;
}
@media (max-width: 900px) {
  .game-layout {
    grid-template-columns: 1fr !important;
    grid-template-rows: auto 1fr auto auto;
  }
  .game-sidebar {
    max-height: 100px;
    flex-direction: row;
    overflow-x: auto;
  }
  .game-sidebar.right { display: none; }
  #gameCanvas {
    min-height: 45vh !important;
  }
  .game-hand {
    max-height: 110px;
  }
  .hand-card {
    min-width: 100px;
    max-width: 120px;
    font-size: 0.85rem;
  }
}
@media (max-width: 500px) {
  .game-topbar { flex-wrap: wrap; gap: 6px; padding: 8px; }
  .home-grid { grid-template-columns: 1fr 1fr; }
  .pack-sealed { min-width: 140px; max-width: 160px; }
}