/* ============ Base ============ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #7c3aed;
  --primary-glow: rgba(124,58,237,0.4);
  --accent: #06b6d4;
  --gold: #f59e0b;
  --bg: #0a0a1a;
  --panel: rgba(12,12,30,0.85);
  --border: rgba(124,58,237,0.3);
  --text: #e2e8f0;
  --muted: #94a3b8;
  --danger: #ef4444;
  --success: #22c55e;
  --font: 'Outfit', sans-serif;
}

body { font-family: var(--font); background: var(--bg); color: var(--text); overflow: hidden; }

.screen { position: fixed; inset: 0; display: none; }
.screen.active { display: block; }

/* ============ Auth Screen ============ */
.auth-bg {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(124,58,237,0.25) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 30%, rgba(6,182,212,0.15) 0%, transparent 50%),
              linear-gradient(135deg, #0a0a1a 0%, #0f0720 50%, #0a1520 100%);
  animation: bgPulse 8s ease-in-out infinite;
}
@keyframes bgPulse {
  0%,100% { opacity: 1; }
  50% { opacity: 0.8; }
}
.auth-bg::before {
  content: '';
  position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='rgba(124,58,237,0.03)'%3E%3Ccircle cx='20' cy='20' r='1'/%3E%3C/g%3E%3C/svg%3E");
}

.auth-panel {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 420px; max-width: 95vw;
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 20px; padding: 40px;
  backdrop-filter: blur(20px);
  box-shadow: 0 0 60px rgba(124,58,237,0.2), 0 20px 60px rgba(0,0,0,0.5);
}

.logo { text-align: center; margin-bottom: 28px; }
.logo-claw { font-size: 48px; filter: drop-shadow(0 0 20px var(--primary)); animation: float 3s ease-in-out infinite; }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
.logo h1 { font-size: 2.2rem; font-weight: 700; background: linear-gradient(135deg, #a78bfa, var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; margin-top: 4px; }
.logo p { color: var(--muted); font-size: 0.9rem; margin-top: 4px; }

.auth-tabs { display: flex; gap: 4px; margin-bottom: 24px; background: rgba(255,255,255,0.04); border-radius: 10px; padding: 4px; }
.tab-btn { flex: 1; padding: 8px; border: none; background: transparent; color: var(--muted); border-radius: 8px; cursor: pointer; font-family: var(--font); font-size: 0.95rem; transition: all 0.2s; }
.tab-btn.active { background: var(--primary); color: white; }

.auth-form { display: none; flex-direction: column; gap: 12px; }
.auth-form.active { display: flex; }
.auth-form input {
  padding: 12px 16px; border: 1px solid var(--border); border-radius: 10px;
  background: rgba(255,255,255,0.05); color: var(--text); font-family: var(--font); font-size: 1rem;
  outline: none; transition: border-color 0.2s;
}
.auth-form input:focus { border-color: var(--primary); }

.btn-primary {
  padding: 12px; border: none; border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), #5b21b6);
  color: white; font-family: var(--font); font-size: 1rem; font-weight: 600;
  cursor: pointer; transition: all 0.2s; position: relative; overflow: hidden;
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 4px 20px var(--primary-glow); }
.btn-primary:active { transform: translateY(0); }

.error-msg { color: var(--danger); font-size: 0.85rem; text-align: center; min-height: 20px; margin-top: 8px; }

/* ============ Game Canvas ============ */
#render-canvas { position: fixed; inset: 0; width: 100%; height: 100%; display: block; touch-action: none; }

/* ============ HUD ============ */
#hud-player {
  position: fixed; top: 16px; left: 16px;
  display: flex; align-items: center; gap: 12px;
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 14px; padding: 10px 14px;
  backdrop-filter: blur(12px);
}
.hud-avatar { width: 36px; height: 36px; border-radius: 50%; border: 2px solid rgba(255,255,255,0.3); flex-shrink:0; }
.hud-name { font-weight: 600; font-size: 0.95rem; }
.hud-level { font-size: 0.8rem; color: var(--muted); }
.xp-bar { width: 120px; height: 4px; background: rgba(255,255,255,0.1); border-radius: 2px; margin-top: 4px; }
.xp-fill { height: 100%; background: linear-gradient(90deg, var(--primary), var(--accent)); border-radius: 2px; transition: width 0.5s; }

#hud-credits {
  position: fixed; top: 16px; right: 16px;
  background: var(--panel); border: 1px solid rgba(245,158,11,0.3);
  border-radius: 12px; padding: 8px 16px; font-weight: 600;
  backdrop-filter: blur(12px); color: var(--gold);
}

#hud-online {
  position: fixed; top: 16px; left: 50%; transform: translateX(-50%);
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 20px; padding: 6px 14px; font-size: 0.85rem; color: var(--muted);
  backdrop-filter: blur(12px);
}

#character-editor-btn {
  position: fixed; bottom: 16px; right: 16px;
  background: linear-gradient(135deg, #7c3aed, #5b21b6);
  border: 1px solid rgba(124,58,237,0.5);
  border-radius: 12px; padding: 10px 18px; font-size: 0.9rem; color: white;
  font-weight: 600; text-decoration: none;
  backdrop-filter: blur(12px);
  box-shadow: 0 4px 12px rgba(124,58,237,0.3);
  transition: all 0.3s ease;
  display: inline-block;
  z-index: 1000;
  cursor: pointer;
}

#character-editor-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(124,58,237,0.5);
  background: linear-gradient(135deg, #8b5cf6, #6d28d9);
}

/* ============ Interact Prompt ============ */
#interact-prompt {
  position: fixed; bottom: 180px; left: 50%; transform: translateX(-50%);
  background: rgba(0,0,0,0.7); border: 1px solid var(--border);
  border-radius: 12px; padding: 10px 20px; font-size: 0.95rem;
  backdrop-filter: blur(8px); animation: pulse 1.5s ease-in-out infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.6; } }
#interact-prompt kbd { background: var(--primary); border-radius: 4px; padding: 2px 8px; font-family: monospace; font-size: 1rem; }

/* ============ Zone Label ============ */
#zone-label {
  position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%);
  font-size: 2rem; font-weight: 700; color: white;
  text-shadow: 0 0 40px var(--primary); pointer-events: none;
  animation: zoneIn 2.5s ease forwards;
}
@keyframes zoneIn { 0% { opacity: 0; transform: translate(-50%,-50%) scale(0.8); } 20% { opacity: 1; transform: translate(-50%,-50%) scale(1); } 80% { opacity: 1; } 100% { opacity: 0; } }

/* ============ Chat Panel ============ */
#chat-panel {
  position: fixed; bottom: 16px; left: 16px;
  width: 320px; background: var(--panel); border: 1px solid var(--border);
  border-radius: 14px; overflow: hidden; backdrop-filter: blur(12px);
}
#chat-log {
  height: 140px; overflow-y: auto; padding: 10px 12px;
  display: flex; flex-direction: column; gap: 4px;
}
#chat-log::-webkit-scrollbar { width: 4px; }
#chat-log::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }
.chat-msg { font-size: 0.85rem; line-height: 1.4; word-break: break-word; }
.chat-msg .chat-user { color: var(--accent); font-weight: 600; }
.chat-msg.system { color: var(--muted); font-style: italic; }
.chat-input-row { display: flex; border-top: 1px solid var(--border); }
#chat-input { flex: 1; background: transparent; border: none; padding: 10px 12px; color: var(--text); font-family: var(--font); font-size: 0.85rem; outline: none; }
#chat-send { background: var(--primary); border: none; color: white; padding: 0 14px; cursor: pointer; font-size: 1rem; }

/* ============ Quest Panel ============ */
#quest-panel {
  position: fixed; bottom: 16px; right: 16px;
  width: 260px; background: var(--panel); border: 1px solid var(--border);
  border-radius: 14px; backdrop-filter: blur(12px); overflow: hidden;
}
.panel-header { display: flex; justify-content: space-between; align-items: center; padding: 10px 14px; border-bottom: 1px solid var(--border); font-weight: 600; font-size: 0.9rem; }
.panel-header button { background: none; border: none; color: var(--muted); cursor: pointer; font-size: 0.85rem; }
#quest-list { max-height: 200px; overflow-y: auto; padding: 8px; }
.quest-item { background: rgba(255,255,255,0.04); border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; margin-bottom: 6px; font-size: 0.82rem; }
.quest-item .quest-title { font-weight: 600; color: var(--gold); margin-bottom: 2px; }
.quest-item .quest-desc { color: var(--muted); font-size: 0.78rem; line-height: 1.3; }
.quest-item .quest-reward { color: var(--success); font-size: 0.75rem; margin-top: 4px; }
.quest-item button { margin-top: 6px; padding: 3px 10px; border: 1px solid var(--success); background: transparent; color: var(--success); border-radius: 6px; cursor: pointer; font-size: 0.78rem; font-family: var(--font); }
.quest-item button:hover { background: var(--success); color: #000; }

/* ============ NPC Dialogue ============ */
#dialogue-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.5); display: flex; align-items: flex-end; justify-content: center;
  backdrop-filter: blur(4px); padding-bottom: 32px;
}
#dialogue-box {
  width: 600px; max-width: 95vw;
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 20px; overflow: hidden;
  box-shadow: 0 0 60px rgba(124,58,237,0.3);
  animation: slideUp 0.3s ease;
}
@keyframes slideUp { from { transform: translateY(40px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
#dialogue-npc-header { display: flex; align-items: center; gap: 10px; padding: 14px 18px; border-bottom: 1px solid var(--border); background: rgba(124,58,237,0.1); }
#dialogue-npc-icon { font-size: 1.5rem; }
#dialogue-npc-name { font-weight: 700; font-size: 1.1rem; flex: 1; }
#dialogue-close { background: none; border: none; color: var(--muted); cursor: pointer; font-size: 1.2rem; }
#dialogue-messages { height: 200px; overflow-y: auto; padding: 14px 18px; display: flex; flex-direction: column; gap: 10px; }
.dmsg { max-width: 80%; padding: 10px 14px; border-radius: 12px; font-size: 0.9rem; line-height: 1.5; word-break: break-word; }
.dmsg.npc { background: rgba(124,58,237,0.2); border: 1px solid var(--border); align-self: flex-start; }
.dmsg.player { background: rgba(6,182,212,0.15); border: 1px solid rgba(6,182,212,0.3); align-self: flex-end; color: var(--accent); }
#dialogue-quest-offer { padding: 10px 18px; border-top: 1px solid var(--border); background: rgba(245,158,11,0.08); }
.quest-offer-card { border: 1px solid rgba(245,158,11,0.4); border-radius: 10px; padding: 10px 14px; }
.quest-offer-card .qo-title { font-weight: 700; color: var(--gold); margin-bottom: 4px; }
.quest-offer-card .qo-desc { font-size: 0.84rem; color: var(--muted); }
.quest-offer-card .qo-reward { font-size: 0.82rem; color: var(--success); margin-top: 6px; }
.quest-offer-card button { margin-top: 8px; padding: 5px 14px; border: none; background: var(--gold); color: #000; border-radius: 6px; cursor: pointer; font-family: var(--font); font-weight: 600; }
#dialogue-input-row { display: flex; border-top: 1px solid var(--border); }
#dialogue-input { flex: 1; background: transparent; border: none; padding: 12px 16px; color: var(--text); font-family: var(--font); font-size: 0.95rem; outline: none; }
#dialogue-send { background: var(--primary); border: none; color: white; padding: 0 20px; cursor: pointer; font-family: var(--font); font-weight: 600; }
#dialogue-loading { padding: 10px 18px; color: var(--muted); font-style: italic; font-size: 0.9rem; }

/* ============ Minimap ============ */
#minimap {
  position: fixed; top: 100px; right: 16px;
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 10px; padding: 6px; backdrop-filter: blur(10px);
}
#minimap-canvas { display: block; border-radius: 6px; }
.minimap-label { text-align: center; font-size: 0.7rem; color: var(--muted); margin-top: 2px; }

/* ============ ESC Menu ============ */
#esc-menu {
  position: fixed; inset: 0; background: rgba(0,0,0,0.6); display: flex; align-items: center; justify-content: center;
  backdrop-filter: blur(6px);
}
.menu-box {
  background: var(--panel); border: 1px solid var(--border); border-radius: 20px;
  padding: 40px; min-width: 280px; text-align: center;
  box-shadow: 0 0 60px rgba(124,58,237,0.25);
}
.menu-box h2 { font-size: 1.6rem; margin-bottom: 24px; }
.menu-box button { display: block; width: 100%; margin-bottom: 12px; padding: 12px; border: 1px solid var(--border); background: rgba(255,255,255,0.05); color: var(--text); border-radius: 10px; cursor: pointer; font-family: var(--font); font-size: 1rem; transition: all 0.2s; }
.menu-box button:hover { background: var(--primary); border-color: var(--primary); }
#btn-logout { border-color: rgba(239,68,68,0.4); }
#btn-logout:hover { background: var(--danger); border-color: var(--danger); }

/* ============ Announcement ============ */
#announcement-popup {
  position: fixed; top: 80px; left: 50%; transform: translateX(-50%);
  background: rgba(124,58,237,0.9); border: 1px solid var(--primary);
  border-radius: 12px; padding: 14px 28px; font-weight: 600;
  backdrop-filter: blur(10px); animation: slideDown 0.3s ease;
  z-index: 1000;
}
@keyframes slideDown { from { transform: translateX(-50%) translateY(-20px); opacity: 0; } to { transform: translateX(-50%) translateY(0); opacity: 1; } }

.hidden { display: none !important; }