/* ============================================================
   DRAGON BYTES — DESIGN SYSTEM (Web Edition)
   Primary: #ff4d00 (Dragon Fire Orange)
   Accent:  #7c3aed (Arcane Purple)
   Background: #0a0a0f (Deep Void)
   ============================================================ */

:root {
  --fire: #ff4d00;
  --fire-deep: #cc3300;
  --arcane: #7c3aed;
  --bg: #0a0a0f;
  --surface: #0d0d16;
  --surface-2: #12121d;
  --border-arcane: rgba(124, 58, 237, 0.25);
  --border-fire: rgba(255, 77, 0, 0.25);
  --text-bright: #f0f0ff;
  --text-body: #c8c8e0;
  --text-dim: #888aaa;
  --text-faint: #555577;
  --success: #00ff88;
  --warn: #ff9500;
  --danger: #ff3b5c;
  --font-display: 'Space Grotesk', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --sidebar-width: 260px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text-body);
  font-family: var(--font-display);
  scroll-behavior: smooth;
}

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: rgba(124, 58, 237, 0.5); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: var(--arcane); }

h1, h2, h3, h4, h5, h6 {
  color: var(--text-bright);
  font-weight: 700;
  margin: 0 0 0.5em;
}

p { line-height: 1.7; margin: 0 0 1em; }
a { color: var(--arcane); text-decoration: none; }

button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; }

.hidden { display: none !important; }

hr.divider {
  border: none;
  border-top: 1px solid var(--border-arcane);
  margin: 2.5rem 0;
}

/* ── Layout ─────────────────────────────────────────────────── */
.sidebar {
  position: fixed;
  top: 0; left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--surface);
  border-right: 1px solid var(--border-arcane);
  display: flex;
  flex-direction: column;
  padding: 18px 16px;
  overflow-y: auto;
  z-index: 100;
}

.main-content {
  margin-left: var(--sidebar-width);
  padding: 2rem 2.5rem 4rem;
  max-width: 1180px;
}

.mobile-nav-toggle {
  display: none;
  position: fixed;
  top: 14px; left: 14px;
  z-index: 200;
  background: var(--surface-2);
  border: 1px solid var(--border-arcane);
  color: var(--text-bright);
  border-radius: 8px;
  width: 42px; height: 42px;
  font-size: 1.2rem;
}

@media (max-width: 900px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.25s ease;
    box-shadow: 0 0 40px rgba(0,0,0,0.6);
  }
  .sidebar.sidebar-open { transform: translateX(0); }
  .main-content { margin-left: 0; padding: 4.5rem 1.2rem 3rem; }
  .mobile-nav-toggle { display: flex; align-items: center; justify-content: center; }
}

/* ── Sidebar Components ─────────────────────────────────────── */
.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 8px;
  background: linear-gradient(135deg, rgba(255,77,0,0.1), rgba(124,58,237,0.1));
  border-radius: 12px;
  border: 1px solid var(--border-fire);
  margin-bottom: 8px;
}

.brand-dragon { font-size: 2.2rem; line-height: 1; }
.brand-name { font-size: 1.2rem; font-weight: 700; color: var(--fire); letter-spacing: 0.5px; }
.brand-tagline { font-size: 0.75rem; color: var(--arcane); font-weight: 500; letter-spacing: 1px; text-transform: uppercase; }

.sidebar-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-arcane), transparent);
  margin: 12px 0;
}

.sidebar-nav { display: flex; flex-direction: column; gap: 4px; }

.nav-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-body);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.92rem;
  text-align: left;
  padding: 0.6rem 0.9rem;
  border-radius: 8px;
  transition: all 0.2s ease;
}

.nav-btn:hover {
  background: rgba(124,58,237,0.12);
  border-color: var(--border-arcane);
  color: var(--text-bright);
}

.nav-btn.nav-active {
  background: linear-gradient(135deg, rgba(255,77,0,0.15), rgba(124,58,237,0.1));
  border-color: var(--border-fire);
  color: var(--fire);
}

.stats-panel {
  background: rgba(124,58,237,0.06);
  border: 1px solid var(--border-arcane);
  border-radius: 10px;
  padding: 14px;
  margin: 8px 0;
}

.stat-row { display: flex; justify-content: space-between; align-items: center; padding: 4px 0; }
.stat-label { font-size: 0.8rem; color: var(--text-dim); }
.stat-value { font-size: 0.95rem; font-weight: 700; color: var(--fire); font-family: var(--font-mono); }
.rank-badge { color: var(--arcane); }

.progress-track {
  height: 6px;
  background: rgba(255,255,255,0.06);
  border-radius: 99px;
  overflow: hidden;
  margin-top: 8px;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--fire), var(--arcane));
  box-shadow: 0 0 10px rgba(124,58,237,0.4);
  transition: width 0.4s ease;
}
.progress-caption { font-size: 0.78rem; color: var(--text-dim); margin-top: 6px; }

.auth-box { margin: 8px 0; }
.auth-greeting { font-size: 0.85rem; color: var(--text-dim); margin-bottom: 8px; }
.auth-greeting strong { color: var(--fire); }

.sidebar-footer { margin-top: auto; text-align: center; padding: 12px 8px; color: var(--text-faint); font-size: 0.78rem; }
.sidebar-footer-sub { opacity: 0.7; font-size: 0.7rem; margin-top: 4px; }

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  background: transparent;
  color: var(--text-body);
  border: 1px solid var(--border-arcane);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.6rem 1.5rem;
  border-radius: 8px;
  transition: all 0.25s ease;
  letter-spacing: 0.3px;
}

.btn:hover {
  background: rgba(124,58,237,0.15);
  border-color: var(--arcane);
  color: var(--text-bright);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(124,58,237,0.2);
}

.btn-primary {
  background: linear-gradient(135deg, var(--fire), var(--fire-deep));
  border-color: var(--fire);
  color: #fff;
}
.btn-primary:hover {
  background: linear-gradient(135deg, #ff6633, var(--fire));
  box-shadow: 0 4px 24px rgba(255,77,0,0.35);
}

.btn-secondary { width: auto; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none !important; }
.btn-block { width: 100%; }

.hero-cta-row, .action-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin: 1.5rem 0;
}
.hero-cta-row { justify-content: center; }

/* ── Inputs ────────────────────────────────────────────────── */
input[type="text"], input[type="email"], input[type="password"], textarea, select {
  background: rgba(124,58,237,0.05);
  border: 1px solid rgba(124,58,237,0.35);
  color: var(--text-bright);
  font-family: var(--font-mono);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 0.95rem;
  width: 100%;
}

input:focus, textarea:focus, select:focus {
  border-color: var(--arcane);
  box-shadow: 0 0 0 3px rgba(124,58,237,0.15);
  outline: none;
}

input::placeholder, textarea::placeholder { color: rgba(200,200,224,0.35); }

label {
  display: block;
  color: #9898bb;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 6px;
}

/* ── Hero Section ──────────────────────────────────────────── */
.hero-section { text-align: center; padding: 40px 10px 20px; position: relative; }

.hero-glow {
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 600px; height: 300px;
  background: radial-gradient(ellipse, rgba(255,77,0,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.dragon-icon-hero { font-size: 5rem; line-height: 1; margin-bottom: 16px; animation: float 4s ease-in-out infinite; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

.hero-title {
  font-size: 4rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--fire) 0%, #ff8c00 40%, var(--arcane) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
  margin-bottom: 12px;
}

.hero-subtitle { font-size: 1.1rem; color: var(--arcane); letter-spacing: 2px; text-transform: uppercase; font-weight: 600; margin-bottom: 20px; }
.hero-description { font-size: 1.05rem; color: #9898bb; max-width: 600px; margin: 0 auto 28px; line-height: 1.7; }

.hero-badges { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin: 20px 0; position: relative; z-index: 1; }
.badge {
  background: rgba(124,58,237,0.12);
  border: 1px solid var(--border-arcane);
  color: #b0a0ff;
  padding: 5px 14px;
  border-radius: 99px;
  font-size: 0.85rem;
  font-weight: 500;
}

/* ── Stats Row ─────────────────────────────────────────────── */
.stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin: 16px 0; }
@media (max-width: 700px) { .stats-row { grid-template-columns: repeat(2, 1fr); } }

.stat-card {
  background: linear-gradient(135deg, rgba(255,77,0,0.06), rgba(124,58,237,0.06));
  border: 1px solid var(--border-fire);
  border-radius: 14px;
  padding: 24px;
  text-align: center;
  transition: transform 0.2s;
}
.stat-card:hover { transform: translateY(-3px); }

.stat-number {
  font-size: 2.2rem;
  font-weight: 800;
  font-family: var(--font-mono);
  background: linear-gradient(135deg, var(--fire), var(--arcane));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-desc { font-size: 0.82rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.5px; margin-top: 4px; }

/* ── Section Header ────────────────────────────────────────── */
.section-header { margin: 8px 0 20px; }
.section-eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--fire);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 600;
  margin-bottom: 6px;
  padding: 3px 10px;
  background: rgba(255,77,0,0.08);
  border-radius: 4px;
  border: 1px solid var(--border-fire);
}

.page-header { margin-bottom: 1.5rem; }
.page-header p { color: var(--text-dim); }

/* ── Generic layout helpers ───────────────────────────────── */
.two-col { display: grid; grid-template-columns: 3fr 2fr; gap: 24px; align-items: start; }
.two-col-even { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
@media (max-width: 900px) {
  .two-col, .two-col-even { grid-template-columns: 1fr; }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .hero-title { font-size: 2.6rem; }
}

.content-card, .highlight-card, .mission-card, .activity-card, .category-card,
.team-card, .achievement-card, .project-card, .contact-card, .join-card, .resource-card {
  background: var(--surface-2);
  border: 1px solid var(--border-arcane);
  border-radius: 14px;
  padding: 22px;
}

.highlight-card { display: flex; flex-direction: column; gap: 12px; justify-content: center; }
.highlight-item { font-size: 0.95rem; color: var(--text-body); }

.mission-card { text-align: center; }
.mission-icon { font-size: 2.2rem; margin-bottom: 8px; }

.activity-card, .category-card, .team-card, .project-card { text-align: center; transition: transform 0.2s, border-color 0.2s; }
.activity-card:hover, .category-card:hover, .team-card:hover, .project-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-fire);
}
.activity-icon, .category-icon, .project-icon { font-size: 2rem; margin-bottom: 8px; }
.activity-card h4 { margin-bottom: 6px; font-size: 1rem; }
.activity-card p { font-size: 0.88rem; color: var(--text-dim); margin: 0; }

.category-name { font-weight: 700; color: var(--text-bright); margin: 6px 0 4px; }
.category-desc { font-size: 0.8rem; color: var(--text-dim); }

.team-avatar { font-size: 2.4rem; margin-bottom: 8px; }
.team-name { font-weight: 700; color: var(--text-bright); }
.team-role { font-size: 0.85rem; color: var(--arcane); margin: 4px 0; }
.team-badge {
  display: inline-block;
  font-size: 0.72rem;
  color: var(--text-dim);
  background: rgba(124,58,237,0.08);
  border: 1px solid var(--border-arcane);
  border-radius: 99px;
  padding: 2px 10px;
  margin-top: 4px;
}

.achievement-card { display: flex; gap: 14px; align-items: flex-start; }
.achievement-icon { font-size: 1.8rem; }
.achievement-title { font-weight: 700; color: var(--text-bright); }
.achievement-detail { font-size: 0.85rem; color: var(--text-dim); margin-top: 2px; }

.event-card {
  display: flex;
  align-items: center;
  gap: 18px;
  background: var(--surface-2);
  border: 1px solid var(--border-arcane);
  border-radius: 12px;
  padding: 16px 20px;
  margin-bottom: 10px;
}
.event-date { font-family: var(--font-mono); color: var(--arcane); font-size: 0.85rem; min-width: 90px; }
.event-info { flex: 1; }
.event-title { font-weight: 700; color: var(--text-bright); }
.event-desc { font-size: 0.85rem; color: var(--text-dim); margin-top: 2px; }
.event-status {
  border: 1px solid;
  border-radius: 99px;
  padding: 4px 14px;
  font-size: 0.78rem;
  font-weight: 600;
  white-space: nowrap;
}
@media (max-width: 600px) { .event-card { flex-direction: column; align-items: flex-start; gap: 6px; } }

.project-tech { font-size: 0.75rem; color: var(--arcane); margin: 2px 0; }
.project-name { font-weight: 700; color: var(--text-bright); }
.project-desc { font-size: 0.85rem; color: var(--text-dim); }

.join-card { margin-bottom: 16px; }
.join-form { display: flex; flex-direction: column; gap: 12px; }
.join-form textarea { min-height: 90px; resize: vertical; }
.join-interests { display: flex; flex-wrap: wrap; gap: 8px; }
.join-interest-chip {
  border: 1px solid var(--border-arcane);
  border-radius: 99px;
  padding: 5px 14px;
  font-size: 0.82rem;
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.2s;
  user-select: none;
}
.join-interest-chip.selected {
  background: rgba(255,77,0,0.12);
  border-color: var(--fire);
  color: var(--fire);
}

.contact-item { font-size: 0.9rem; color: var(--text-body); margin: 6px 0; }

/* ── Filters / Arena ───────────────────────────────────────── */
.filter-row { display: flex; gap: 20px; flex-wrap: wrap; margin-bottom: 12px; }
.filter-group { flex: 1; min-width: 200px; }

.empty-state {
  text-align: center;
  padding: 60px 20px;
  background: var(--surface-2);
  border: 1px dashed var(--border-arcane);
  border-radius: 16px;
}
.empty-icon { font-size: 3rem; margin-bottom: 12px; }
.empty-state h3 { margin-bottom: 8px; }
.empty-state p { color: var(--text-dim); }

.challenge-header {
  background: linear-gradient(135deg, rgba(255,77,0,0.08), rgba(124,58,237,0.08));
  border: 1px solid var(--border-fire);
  border-radius: 14px 14px 0 0;
  padding: 20px 24px;
}
.challenge-header.challenge-solved { border-color: rgba(0,255,136,0.4); background: linear-gradient(135deg, rgba(0,255,136,0.08), rgba(124,58,237,0.06)); }
.ch-title { font-size: 1.4rem; font-weight: 700; color: var(--text-bright); margin-bottom: 10px; }
.ch-meta { display: flex; gap: 8px; flex-wrap: wrap; }
.ch-badge {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 99px;
  border: 1px solid var(--border-arcane);
  color: var(--text-body);
}
.ch-category { color: var(--arcane); border-color: var(--border-arcane); }
.ch-points { color: var(--fire); border-color: var(--border-fire); }
.ch-solved { color: var(--success); border-color: rgba(0,255,136,0.4); }

.challenge-body {
  background: var(--surface-2);
  border-left: 1px solid var(--border-arcane);
  border-right: 1px solid var(--border-arcane);
  padding: 20px 24px;
}
.challenge-description { line-height: 1.8; }
.challenge-description code {
  background: rgba(124,58,237,0.12);
  color: #b0a0ff;
  padding: 2px 8px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.challenge-code {
  background: #0a0a0f;
  border: 1px solid var(--border-arcane);
  border-left: 1px solid var(--border-arcane);
  border-right: 1px solid var(--border-arcane);
  padding: 16px 20px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: #a0e0a0;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-word;
}

.challenge-footer {
  background: var(--surface-2);
  border: 1px solid var(--border-arcane);
  border-top: none;
  border-radius: 0 0 14px 14px;
  padding: 20px 24px;
}

.flag-submit-row { display: flex; gap: 12px; margin-bottom: 8px; }
.flag-submit-row input { flex: 1; }
.flag-submit-row .btn { white-space: nowrap; }

.feedback-banner {
  border-radius: 10px;
  border: 1px solid;
  padding: 12px 16px;
  margin: 14px 0;
  font-size: 0.92rem;
}
.feedback-success { background: rgba(0,255,136,0.08); border-color: rgba(0,255,136,0.35); color: var(--success); }
.feedback-warning { background: rgba(255,149,0,0.08); border-color: rgba(255,149,0,0.35); color: var(--warn); }
.feedback-error { background: rgba(255,59,92,0.08); border-color: rgba(255,59,92,0.35); color: var(--danger); }
.feedback-info { background: rgba(124,58,237,0.08); border-color: var(--border-arcane); color: #b0a0ff; }

.hint-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.hint-list { margin-top: 12px; display: flex; flex-direction: column; gap: 8px; }
.hint-item {
  background: rgba(124,58,237,0.06);
  border: 1px solid var(--border-arcane);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 0.88rem;
  color: #b0a0ff;
}

.category-progress { display: flex; justify-content: space-between; align-items: center; margin: 12px 0 4px; }
.cat-prog-name { font-weight: 600; color: var(--text-body); }
.cat-prog-stat { font-family: var(--font-mono); color: var(--fire); font-size: 0.85rem; }
.category-progress-block { margin-bottom: 14px; }

.info-banner {
  background: rgba(124,58,237,0.08);
  border: 1px solid var(--border-arcane);
  border-radius: 10px;
  padding: 12px 16px;
  color: #b0a0ff;
  font-size: 0.9rem;
  margin-top: 16px;
}

/* ── Leaderboard ───────────────────────────────────────────── */
.leaderboard-table { border: 1px solid var(--border-arcane); border-radius: 14px; overflow: hidden; }
.lb-header, .lb-row {
  display: grid;
  grid-template-columns: 70px 1fr 110px 90px;
  align-items: center;
  padding: 12px 20px;
}
.lb-header { background: rgba(124,58,237,0.1); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 1px; color: var(--text-dim); font-weight: 700; }
.lb-row { background: var(--surface-2); border-top: 1px solid var(--border-arcane); }
.lb-row.lb-you { background: rgba(255,77,0,0.08); }
.lb-rank { font-family: var(--font-mono); color: var(--arcane); font-weight: 700; }
.lb-user { color: var(--text-bright); font-weight: 600; }
.lb-score { font-family: var(--font-mono); color: var(--fire); }
.lb-solved { font-family: var(--font-mono); color: var(--text-dim); }
@media (max-width: 600px) {
  .lb-header, .lb-row { grid-template-columns: 50px 1fr 80px; }
  .lb-solved { display: none; }
}

/* ── Resources tabs ────────────────────────────────────────── */
.tabs { display: flex; gap: 6px; flex-wrap: wrap; border-bottom: 1px solid var(--border-arcane); margin-bottom: 20px; }
.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-family: var(--font-display);
  font-weight: 500;
  padding: 10px 16px;
  border-radius: 8px 8px 0 0;
  font-size: 0.9rem;
}
.tab-btn.tab-active { color: var(--fire); background: rgba(255,77,0,0.08); border-bottom: 2px solid var(--fire); }
.resource-section h3 { margin-bottom: 14px; }
.resource-card { margin-bottom: 12px; }
.resource-card strong { color: var(--text-bright); display: block; margin-bottom: 4px; }
.resource-card p { margin: 0; color: var(--text-dim); font-size: 0.92rem; }

/* ── Modal ─────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(5,5,10,0.75);
  backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000;
}
.modal {
  background: var(--surface);
  border: 1px solid var(--border-fire);
  border-radius: 18px;
  padding: 32px 30px;
  width: 100%;
  max-width: 380px;
  position: relative;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.modal-close {
  position: absolute; top: 14px; right: 16px;
  background: transparent; border: none;
  color: var(--text-dim); font-size: 1.4rem;
  width: 32px; height: 32px;
}
.modal-close:hover { color: var(--text-bright); }
.dragon-icon-modal { text-align: center; font-size: 2.6rem; margin-bottom: 14px; }
.modal-tabs { display: flex; gap: 8px; margin-bottom: 20px; }
.modal-tab {
  flex: 1;
  background: transparent;
  border: 1px solid var(--border-arcane);
  color: var(--text-dim);
  padding: 8px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.88rem;
}
.modal-tab.modal-tab-active { color: var(--fire); border-color: var(--border-fire); background: rgba(255,77,0,0.08); }
#auth-form { display: flex; flex-direction: column; gap: 12px; }
.auth-error { color: var(--danger); font-size: 0.85rem; padding: 8px 0; }

/* ── Toasts ────────────────────────────────────────────────── */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 2000;
  max-width: 340px;
}
.toast {
  background: var(--surface);
  border: 1px solid var(--border-arcane);
  border-left: 4px solid var(--arcane);
  border-radius: 10px;
  padding: 12px 16px;
  font-size: 0.88rem;
  color: var(--text-body);
  box-shadow: 0 8px 30px rgba(0,0,0,0.4);
  animation: toast-in 0.25s ease;
}
.toast.toast-success { border-left-color: var(--success); }
.toast.toast-error { border-left-color: var(--danger); }
@keyframes toast-in { from { transform: translateX(20px); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@media (max-width: 600px) { .toast-container { left: 16px; right: 16px; max-width: none; } }

select option { background-color: #0d0d16; color: #f0f0ff; }

/* Custom dropdown styling */
.filter-group select {
  appearance: none;
  -webkit-appearance: none;
  background-color: #1a1a2e !important;
  color: #f0f0ff !important;
  border: 1px solid rgba(255,77,0,0.3);
  padding: 10px 36px 10px 14px;
  border-radius: 8px;
  font-family: inherit;
  font-size: 14px;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23ff4d00' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  width: 100%;
}
.filter-group select:focus {
  outline: none;
  border-color: #ff4d00;
}
.filter-group select option {
  background-color: #1a1a2e !important;
  color: #f0f0ff !important;
}
/* ── Extra classes needed by app.js ──────────────────── */
.three-col { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px,1fr)); gap: 16px; margin-bottom: 1.5rem; }
.two-col   { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 1.5rem; }
@media (max-width:680px) { .two-col, .three-col { grid-template-columns: 1fr; } }

.activity-card { background: var(--surface-2); border: 1px solid var(--border-arcane); border-radius: 12px; padding: 18px; transition: transform .15s; }
.activity-card:hover { transform: translateY(-2px); }
.activity-icon { font-size: 2rem; margin-bottom: 8px; }
.activity-card h4 { color: var(--text-bright); font-size: 1rem; margin-bottom: 6px; }
.activity-card p  { font-size: 0.84rem; color: var(--text-dim); line-height: 1.55; margin: 0; }

.event-card { display: flex; align-items: center; gap: 16px; background: var(--surface-2); border: 1px solid var(--border-arcane); border-left: 3px solid var(--fire); border-radius: 0 12px 12px 0; padding: 14px 18px; margin-bottom: 10px; }
.event-date  { font-family: var(--font-mono); font-size: .8rem; color: var(--fire); min-width: 95px; font-weight: 600; }
.event-info  { flex: 1; }
.event-title { font-size: .93rem; font-weight: 600; color: var(--text-bright); }
.event-desc  { font-size: .82rem; color: var(--text-dim); margin-top: 2px; }
.event-status { font-size: .74rem; font-weight: 700; padding: 4px 11px; border-radius: 99px; border: 1px solid; white-space: nowrap; }

.team-card   { background: var(--surface-2); border: 1px solid var(--border-arcane); border-radius: 12px; padding: 20px; text-align: center; transition: border-color .15s; }
.team-card:hover { border-color: rgba(255,77,0,.4); }
.team-avatar { font-size: 2.6rem; margin-bottom: 8px; }
.team-name   { font-size: 1rem; font-weight: 700; color: var(--text-bright); }
.team-role   { font-size: .82rem; color: var(--arcane); margin: 3px 0; font-weight: 500; }
.team-badge  { font-size: .74rem; background: rgba(255,77,0,.1); border: 1px solid rgba(255,77,0,.25); border-radius: 99px; padding: 3px 10px; color: #ff8c55; display: inline-block; margin-top: 5px; }

.form-input { width: 100%; padding: 10px 14px; margin-bottom: 8px; background: var(--surface-2); border: 1px solid var(--border-arcane); border-radius: 8px; color: var(--text-bright); font-family: var(--font-display); font-size: 14px; }
.form-input:focus { outline: none; border-color: var(--arcane); }

.feedback-banner { padding: .65rem 1rem; border-radius: 8px; font-size: 14px; margin-bottom: .75rem; }
.feedback-success { background: rgba(0,255,136,.08); border: 1px solid rgba(0,255,136,.3); color: #00ff88; }
.feedback-error   { background: rgba(255,59,92,.08);  border: 1px solid rgba(255,59,92,.3);  color: #ff3b5c; }
.feedback-warning { background: rgba(255,149,0,.08);  border: 1px solid rgba(255,149,0,.3);  color: #ff9500; }
.feedback-info    { background: rgba(124,58,237,.1);  border: 1px solid rgba(124,58,237,.3); color: #b39dff; }

.hint-list { display: flex; flex-direction: column; gap: 6px; margin-top: .5rem; }
.hint-item { background: rgba(255,149,0,.08); border: 1px solid rgba(255,149,0,.25); border-radius: 8px; padding: .55rem .85rem; font-size: 13px; color: #ff9500; }

.challenge-code { background: var(--surface-2); border: 1px solid var(--border-arcane); border-left: 3px solid var(--arcane); border-radius: 0 8px 8px 0; padding: 14px 16px; font-family: var(--font-mono); font-size: 12.5px; color: var(--text-bright); overflow-x: auto; margin: 12px 0; white-space: pre-wrap; }

.filter-row   { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 14px; }
.filter-group { display: flex; flex-direction: column; gap: 5px; flex: 1; min-width: 180px; }
.filter-group label { font-size: 12px; color: var(--text-dim); }
.filter-group select { padding: 9px 12px; background: var(--surface-2); border: 1px solid var(--border-arcane); border-radius: 8px; color: var(--text-bright); font-family: var(--font-display); font-size: 14px; cursor: pointer; }
.filter-group select:focus { outline: none; border-color: var(--arcane); }

.action-row { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; }

.flag-submit-row { display: flex; gap: 8px; margin-bottom: 12px; }
.flag-submit-row input { flex: 1; padding: 10px 14px; background: var(--surface-2); border: 1px solid var(--border-arcane); border-radius: 8px; color: var(--text-bright); font-family: var(--font-mono); font-size: 14px; }
.flag-submit-row input:focus { outline: none; border-color: var(--arcane); }

.hint-row { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.hint-row strong { color: var(--text-body); font-size: 14px; }

.category-progress-block { margin-bottom: 14px; }
.category-progress { display: flex; justify-content: space-between; margin-bottom: 4px; }
.cat-prog-name { font-size: 14px; color: var(--text-body); }
.cat-prog-stat { font-size: 13px; color: var(--arcane); font-family: var(--font-mono); font-weight: 600; }
.progress-track { height: 6px; background: var(--surface-2); border-radius: 99px; overflow: hidden; }
.progress-fill  { height: 100%; background: linear-gradient(90deg, var(--fire), var(--arcane)); border-radius: 99px; transition: width .4s ease; }
.progress-caption { font-size: 12px; color: var(--text-dim); margin-top: 4px; padding: 0 4px; }

.challenge-header { background: linear-gradient(135deg, rgba(255,77,0,.07), rgba(124,58,237,.07)); border: 1px solid rgba(255,77,0,.25); border-radius: 14px; padding: 18px 22px; margin-bottom: 14px; }
.challenge-solved { border-color: rgba(0,255,136,.3) !important; background: rgba(0,255,136,.04) !important; }
.ch-title { font-size: 1.35rem; font-weight: 700; color: var(--text-bright); margin-bottom: 10px; }
.ch-meta  { display: flex; flex-wrap: wrap; gap: 7px; }
.ch-badge { font-size: .76rem; font-weight: 600; padding: 4px 11px; border-radius: 99px; border: 1px solid; font-family: var(--font-mono); }
.ch-category  { color: #b0a0ff; border-color: rgba(124,58,237,.4); background: rgba(124,58,237,.08); }
.ch-difficulty{ color: #ffcc44;  border-color: rgba(255,200,50,.3); background: rgba(255,200,50,.06); }
.ch-points    { color: #ff4d00;  border-color: rgba(255,77,0,.3);  background: rgba(255,77,0,.06); }
.ch-solved    { color: #00cc66;  border-color: rgba(0,200,100,.3); background: rgba(0,200,100,.06); }

.challenge-body { background: rgba(255,255,255,.02); border: 1px solid rgba(124,58,237,.15); border-left: 3px solid var(--arcane); border-radius: 0 10px 10px 0; padding: 18px; margin-bottom: 14px; }
.challenge-description { color: var(--text-body); font-size: 1rem; line-height: 1.7; white-space: pre-wrap; }
.challenge-footer { margin-top: 4px; }

.resource-section h3 { color: var(--text-bright); font-size: 1.1rem; margin-bottom: 14px; }
.resource-card { background: var(--surface-2); border: 1px solid var(--border-arcane); border-radius: 10px; padding: 16px; margin-bottom: 10px; transition: border-color .15s; }
.resource-card:hover { border-color: rgba(255,77,0,.3); }
.resource-card strong { color: var(--text-bright); display: block; margin-bottom: 5px; }
.resource-card p { color: var(--text-dim); font-size: .86rem; margin: 0; line-height: 1.55; }

.tabs { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 18px; }
.tab-btn { padding: 7px 16px; border: 1px solid var(--border-arcane); border-radius: 99px; background: transparent; color: var(--text-dim); font-family: var(--font-display); font-size: 13px; cursor: pointer; transition: all .15s; }
.tab-btn:hover  { border-color: var(--arcane); color: var(--text-bright); }
.tab-active     { border-color: var(--fire) !important; background: rgba(255,77,0,.08) !important; color: var(--fire) !important; }

.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.7); display: flex; align-items: center; justify-content: center; z-index: 1000; padding: 16px; }
.modal { background: var(--surface); border: 1px solid var(--border-arcane); border-radius: 16px; padding: 28px; width: 100%; max-width: 400px; position: relative; }
.modal-close { position: absolute; top: 14px; right: 16px; background: none; border: none; color: var(--text-dim); font-size: 22px; cursor: pointer; line-height: 1; }
.modal-tabs  { display: flex; gap: 0; margin-bottom: 20px; border-bottom: 1px solid var(--border-arcane); }
.modal-tab   { flex: 1; padding: 10px; background: none; border: none; border-bottom: 2px solid transparent; color: var(--text-dim); font-family: var(--font-display); font-size: 14px; font-weight: 600; cursor: pointer; margin-bottom: -1px; transition: all .15s; }
.modal-tab-active { border-bottom-color: var(--fire); color: var(--fire); }
.dragon-icon-modal { font-size: 2.5rem; text-align: center; margin-bottom: 14px; }
.modal input { width: 100%; padding: 10px 14px; margin-bottom: 10px; background: rgba(255,255,255,.04); border: 1px solid var(--border-arcane); border-radius: 8px; color: var(--text-bright); font-family: var(--font-display); font-size: 14px; }
.modal input:focus { outline: none; border-color: var(--arcane); }
.auth-error { background: rgba(255,59,92,.1); border: 1px solid rgba(255,59,92,.3); color: #ff3b5c; padding: 9px 12px; border-radius: 8px; font-size: 13px; margin-bottom: 8px; }

.btn-block { width: 100%; justify-content: center; }

.toast-container { position: fixed; bottom: 24px; right: 24px; z-index: 9999; display: flex; flex-direction: column; gap: 8px; }
.toast { background: var(--surface-2); border: 1px solid var(--border-arcane); border-radius: 10px; padding: 11px 18px; font-size: 14px; color: var(--text-body); animation: slideIn .25s ease; max-width: 320px; }
.toast-success { border-color: rgba(0,255,136,.4); color: #00ff88; }
.toast-error   { border-color: rgba(255,59,92,.4);  color: #ff3b5c; }
@keyframes slideIn { from { opacity:0; transform:translateY(10px); } to { opacity:1; transform:translateY(0); } }

.hidden { display: none !important; }

.empty-state { text-align: center; padding: 60px 20px; color: var(--text-dim); }
.empty-icon  { font-size: 3.5rem; margin-bottom: 14px; opacity: .5; }
.empty-state h3 { color: var(--text-dim); margin-bottom: 8px; }

.lb-you { background: rgba(255,77,0,.05) !important; border-left: 3px solid var(--fire); }

.highlight-card { background: linear-gradient(135deg, rgba(255,77,0,.06), rgba(124,58,237,.06)); border: 1px solid rgba(255,77,0,.2); border-radius: 14px; padding: 18px; }
.highlight-item { color: var(--text-body); padding: 7px 10px; border-bottom: 1px solid rgba(255,255,255,.05); font-size: .93rem; }
.highlight-item:last-child { border-bottom: none; }

.content-card { background: rgba(255,255,255,.02); border: 1px solid var(--border-arcane); border-radius: 14px; padding: 22px; }
.content-card p { color: var(--text-body); line-height: 1.7; }
.content-card strong { color: var(--text-bright); }

/* ── Competition Rooms ──────────────────────────────────────────── */
.rooms-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 18px; margin-top: 8px; }
.room-card { display: flex; flex-direction: column; }
.room-card p { flex: 1; color: var(--text-dim); font-size: 0.92rem; }