/* ═══════════════════════════════════════════
   QuietRefuge — Complete Stylesheet
   ═══════════════════════════════════════════ */

:root {
  --bg-deep: #0a0a1a;
  --bg-card: rgba(255, 255, 255, 0.03);
  --bg-glass: rgba(255, 255, 255, 0.05);
  --bg-glass-hover: rgba(255, 255, 255, 0.08);
  --border: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.12);
  --accent: #2dd4bf;
  --accent-dim: rgba(45, 212, 191, 0.15);
  --accent2: #a78bfa;
  --accent2-dim: rgba(167, 139, 250, 0.12);
  --text: #e2e8f0;
  --text-muted: #64748b;
  --text-dim: #475569;
  --danger: #f87171;
  --radius: 12px;
  --radius-lg: 16px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  background: var(--bg-deep);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ═══════════════════════════════════════════
   Welcome Screen
   ═══════════════════════════════════════════ */
#welcome {
  position: fixed;
  inset: 0;
  background: var(--bg-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

#welcome.fade-out {
  opacity: 0;
  visibility: hidden;
}

.welcome-inner {
  text-align: center;
  padding: 40px;
}

.welcome-shield {
  font-size: 4rem;
  margin-bottom: 24px;
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

#welcome-heading {
  font-size: clamp(1.8rem, 5vw, 3rem);
  font-weight: 300;
  letter-spacing: -0.02em;
  color: #fff;
  margin-bottom: 12px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.8s 0.3s forwards;
}

.welcome-sub {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-bottom: 40px;
  opacity: 0;
  animation: fadeUp 0.8s 0.5s forwards;
}

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

#enter {
  position: relative;
  padding: 14px 40px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #fff;
  font-size: 1rem;
  letter-spacing: 0.08em;
  cursor: pointer;
  border-radius: 8px;
  overflow: hidden;
  transition: var(--transition);
  opacity: 0;
  animation: fadeUp 0.8s 0.7s forwards;
}

#enter:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--accent);
  color: var(--accent);
}

.btn-shine {
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.08), transparent);
  animation: shine 3s infinite;
}

@keyframes shine {
  0% { left: -100%; }
  50% { left: 100%; }
  100% { left: 100%; }
}

/* ═══════════════════════════════════════════
   App Shell
   ═══════════════════════════════════════════ */
#app {
  max-width: 860px;
  margin: 0 auto;
  padding: 16px;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

#app.hidden { display: none; }

#app.visible {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

/* ── App Header ── */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  margin-bottom: 8px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.15rem;
  font-weight: 600;
  color: #fff;
}

.logo span { letter-spacing: -0.01em; }

#upgrade-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: linear-gradient(135deg, var(--accent2-dim), rgba(45, 212, 191, 0.08));
  border: 1px solid rgba(167, 139, 250, 0.2);
  color: var(--accent2);
  font-size: 0.85rem;
  font-weight: 500;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition);
}

#upgrade-btn:hover {
  background: linear-gradient(135deg, rgba(167, 139, 250, 0.2), rgba(45, 212, 191, 0.15));
  border-color: var(--accent2);
  transform: translateY(-1px);
}

/* ── Navigation ── */
nav {
  display: flex;
  gap: 4px;
  padding: 4px;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 16px;
}

.nav-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  border-radius: 8px;
  transition: var(--transition);
}

.nav-btn:hover {
  color: var(--text);
  background: var(--bg-glass);
}

.nav-btn.active {
  color: #fff;
  background: var(--accent-dim);
}

.nav-btn.active svg { stroke: var(--accent); }

/* ── Tab Content ── */
.tab {
  display: none;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  min-height: 480px;
  animation: tabIn 0.35s ease;
}

.tab.active { display: flex; flex-direction: column; }

@keyframes tabIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.tab-header { margin-bottom: 20px; }
.tab-header h2 { font-size: 1.2rem; font-weight: 600; color: #fff; }
.tab-desc { color: var(--text-muted); font-size: 0.85rem; margin-top: 4px; }

/* ═══════════════════════════════════════════
   Chat
   ═══════════════════════════════════════════ */
#chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 8px 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.08) transparent;
}

#chat-messages::-webkit-scrollbar { width: 4px; }
#chat-messages::-webkit-scrollbar-track { background: transparent; }
#chat-messages::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 4px; }

.msg {
  display: flex;
  max-width: 85%;
  animation: msgIn 0.3s ease;
}

@keyframes msgIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.msg.user { align-self: flex-end; }
.msg.bot { align-self: flex-start; }

.msg-bubble {
  padding: 10px 14px;
  border-radius: 12px;
  font-size: 0.9rem;
  line-height: 1.5;
  word-break: break-word;
}

.msg.user .msg-bubble {
  background: var(--accent-dim);
  border: 1px solid rgba(45, 212, 191, 0.15);
  color: var(--text);
  border-bottom-right-radius: 4px;
}

.msg.bot .msg-bubble {
  background: var(--bg-glass);
  border: 1px solid var(--border);
  color: var(--text);
  border-bottom-left-radius: 4px;
}

/* Typing indicator */
.msg.bot.typing .msg-bubble::after {
  content: '';
  display: inline-block;
  width: 4px;
  height: 4px;
  background: var(--text-muted);
  border-radius: 50%;
  margin-left: 4px;
  animation: blink 1s infinite;
}

@keyframes blink {
  0%, 100% { opacity: 0.2; }
  50% { opacity: 1; }
}

/* Chat Input Bar */
.chat-input-bar {
  display: flex;
  gap: 8px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

#chat-input {
  flex: 1;
  padding: 12px 16px;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-size: 0.9rem;
  font-family: inherit;
  transition: var(--transition);
}

#chat-input:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(45, 212, 191, 0.04);
}

#chat-input::placeholder { color: var(--text-dim); }

#send-btn {
  padding: 12px 16px;
  background: var(--accent);
  border: none;
  border-radius: 10px;
  color: var(--bg-deep);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

#send-btn:hover {
  background: #5eead4;
  transform: translateY(-1px);
}

#send-btn:active { transform: scale(0.95); }

#send-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

.chat-footer {
  padding-top: 8px;
  text-align: center;
}

#chat-limit-label {
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* ═══════════════════════════════════════════
   Radar
   ═══════════════════════════════════════════ */
.radar-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  gap: 20px;
}

.radar-loading p { color: var(--text-muted); font-size: 0.9rem; }

.pulse-ring {
  width: 48px;
  height: 48px;
  border: 2px solid var(--accent);
  border-radius: 50%;
  animation: pulse 1.5s ease-out infinite;
}

@keyframes pulse {
  0% { transform: scale(0.8); opacity: 1; }
  100% { transform: scale(1.6); opacity: 0; }
}

.radar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

.event-card {
  background: var(--bg-glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
}

.event-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.event-card-img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  background: linear-gradient(135deg, #1a1a2e, #0d0d2b);
}

.event-card-body { padding: 16px; }

.event-card-body h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 8px;
  line-height: 1.3;
}

.event-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.event-meta span {
  display: flex;
  align-items: center;
  gap: 6px;
}

.event-tag {
  display: inline-block;
  margin-top: 10px;
  padding: 3px 8px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: 4px;
  background: var(--accent-dim);
  color: var(--accent);
}

.event-tag.free {
  background: rgba(34, 197, 94, 0.12);
  color: #4ade80;
}

.radar-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.radar-empty p { margin-bottom: 8px; }

/* ═══════════════════════════════════════════
   Vault
   ═══════════════════════════════════════════ */
.vault-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}

.vault-card {
  position: relative;
  padding: 20px;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
}

.vault-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-glass-hover);
  transform: translateY(-2px);
}

.vault-card h3 {
  font-size: 0.9rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 6px;
}

.vault-card p {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.vault-card .vault-badge {
  display: inline-block;
  margin-top: 10px;
  padding: 3px 8px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: 4px;
}

.vault-badge.free {
  background: rgba(34, 197, 94, 0.12);
  color: #4ade80;
}

.vault-badge.locked {
  background: rgba(248, 113, 113, 0.1);
  color: var(--danger);
}

.vault-card.locked { opacity: 0.55; }

.vault-card.locked:hover {
  opacity: 0.75;
  border-color: rgba(248, 113, 113, 0.2);
}

/* ═══════════════════════════════════════════
   Modals
   ═══════════════════════════════════════════ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.modal {
  position: relative;
  background: #0f0f2a;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  max-width: 880px;
  width: 92%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow);
  transform: translateY(20px) scale(0.97);
  transition: transform 0.3s ease;
}

.modal-overlay.open .modal {
  transform: translateY(0) scale(1);
}

.modal-sm { max-width: 520px; }

.modal h2 {
  font-size: 1.3rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 4px;
}

.modal-sub {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 24px;
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 20px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.8rem;
  cursor: pointer;
  line-height: 1;
  transition: color var(--transition);
}

.modal-close:hover { color: #fff; }

/* ── Tier Cards ── */
.tier-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
}

.tier-card {
  position: relative;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
  transition: var(--transition);
}

.tier-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.tier-card.featured {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.tier-badge {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  padding: 2px 12px;
  background: var(--accent);
  color: var(--bg-deep);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-radius: 4px;
}

.tier-card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 8px;
  margin-top: 4px;
}

.tier-price {
  font-size: 1.8rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}

.tier-price span {
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--text-muted);
}

.tier-savings {
  color: #4ade80;
  font-size: 0.8rem;
  font-weight: 500;
  margin-top: -10px;
  margin-bottom: 14px;
}

.tier-card ul {
  list-style: none;
  text-align: left;
  margin-bottom: 20px;
}

.tier-card li {
  font-size: 0.82rem;
  color: var(--text-muted);
  padding: 5px 0;
  padding-left: 18px;
  position: relative;
}

.tier-card li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 700;
}

.tier-btn {
  width: 100%;
  padding: 10px 16px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 0.85rem;
  font-weight: 500;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition);
}

.tier-btn:hover:not(:disabled) {
  background: var(--bg-glass-hover);
  border-color: var(--border-hover);
}

.tier-btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg-deep);
  font-weight: 600;
}

.tier-btn.primary:hover {
  background: #5eead4;
  border-color: #5eead4;
}

.tier-btn:disabled {
  opacity: 0.4;
  cursor: default;
}

/* ── Vault Detail Modal ── */
.vault-modal-body {
  margin-top: 16px;
  padding: 20px;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.9rem;
  color: var(--text);
  line-height: 1.7;
  white-space: pre-wrap;
}

/* ═══════════════════════════════════════════
   Responsive
   ═══════════════════════════════════════════ */
@media (max-width: 640px) {
  #app { padding: 12px; }

  .app-header { padding: 8px 0; }

  .nav-btn span { display: none; }
  .nav-btn { padding: 10px 14px; }

  .tab { padding: 16px; min-height: 420px; }
  .tab-header h2 { font-size: 1.1rem; }

  .chat-input-bar { gap: 6px; }
  #chat-input { padding: 10px 12px; }
  #send-btn { padding: 10px 14px; }

  .radar-grid { grid-template-columns: 1fr; }
  .vault-grid { grid-template-columns: 1fr; }

  .tier-grid { grid-template-columns: 1fr 1fr; }

  .modal { padding: 24px 16px; width: 96%; }
}

@media (max-width: 400px) {
  .tier-grid { grid-template-columns: 1fr; }
}

/* ═══════════════════════════════════════════
   Utility
   ═══════════════════════════════════════════ */
::selection {
  background: var(--accent);
  color: var(--bg-deep);
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }