/* ============================================================
   LINKTUM MATRIX — Design System v2.0
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;600;700;800&family=JetBrains+Mono:wght@300;400;500;700&display=swap');

:root {
  --bg-base:      #050508;
  --bg-panel:     #0a0a12;
  --bg-card:      #0e0e1a;
  --bg-elevated:  #13131f;
  --bg-hover:     #1a1a28;

  --primary:      #6366f1;
  --primary-glow: rgba(99,102,241,0.35);
  --secondary:    #8b5cf6;
  --accent:       #22d3ee;
  --accent-green: #10b981;
  --accent-gold:  #f59e0b;
  --accent-red:   #ef4444;

  --text-primary:   #f0f0ff;
  --text-secondary: #8b8ba7;
  --text-muted:     #4a4a6a;
  --text-accent:    #a5b4fc;

  --border:       rgba(99,102,241,0.15);
  --border-glow:  rgba(99,102,241,0.4);
  --border-card:  rgba(255,255,255,0.06);

  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  18px;
  --radius-xl:  24px;

  --shadow-glow:   0 0 30px rgba(99,102,241,0.25);
  --shadow-card:   0 4px 24px rgba(0,0,0,0.4);

  --font-display: 'Syne', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  --sidebar-w: 240px;
  --header-h:  60px;
  --transition: 0.2s cubic-bezier(0.4,0,0.2,1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-mono);
  background: var(--bg-base);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(99,102,241,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99,102,241,0.025) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

/* ── Layout ── */
.app-shell { display: flex; min-height: 100vh; position: relative; }

/* ── Sidebar ── */
.sidebar {
  width: var(--sidebar-w);
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0;
  height: 100vh;
  z-index: 100;
  transition: transform var(--transition);
}

.sidebar-logo {
  padding: 18px 18px 14px;
  border-bottom: 1px solid var(--border);
}

.logo-mark { display: flex; align-items: center; gap: 10px; }

.logo-hex {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  clip-path: polygon(50% 0%,100% 25%,100% 75%,50% 100%,0% 75%,0% 25%);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-weight: 800; font-size: 13px; color: #fff;
  flex-shrink: 0;
}

.logo-text { font-family: var(--font-display); font-weight: 800; font-size: 15px; color: var(--text-primary); letter-spacing: -0.02em; line-height: 1.2; }
.logo-sub { font-size: 9px; color: var(--text-muted); font-family: var(--font-mono); letter-spacing: 0.1em; text-transform: uppercase; }

.sidebar-nav { flex: 1; padding: 10px 8px; overflow-y: auto; }

.nav-section-label { font-size: 9px; letter-spacing: 0.15em; text-transform: uppercase; color: var(--text-muted); padding: 10px 10px 4px; font-weight: 500; }

.nav-item {
  display: flex; align-items: center; gap: 9px;
  padding: 9px 11px; border-radius: var(--radius-md);
  cursor: pointer; color: var(--text-secondary);
  font-size: 12.5px; font-weight: 400;
  transition: all var(--transition);
  border: 1px solid transparent;
  margin-bottom: 2px;
  text-decoration: none;
}

.nav-item:hover { background: var(--bg-hover); color: var(--text-primary); border-color: var(--border); }
.nav-item.active { background: rgba(99,102,241,0.12); border-color: var(--border-glow); color: var(--text-accent); }
.nav-item-admin { }
.nav-item-admin.active { background: rgba(245,158,11,0.08); border-color: rgba(245,158,11,0.3); color: var(--accent-gold); }
.nav-item-admin:hover { color: var(--accent-gold); }

.nav-item-icon { width: 18px; text-align: center; font-size: 14px; flex-shrink: 0; }

.nav-badge { margin-left: auto; background: var(--primary); color: #fff; font-size: 9px; padding: 2px 6px; border-radius: 20px; font-weight: 600; }

.sidebar-footer { padding: 12px; border-top: 1px solid var(--border); }

.net-dot-sm { display: inline-block; width: 5px; height: 5px; border-radius: 50%; background: var(--accent-green); box-shadow: 0 0 6px var(--accent-green); margin-right: 5px; }

/* ── Header ── */
.header {
  height: var(--header-h);
  background: rgba(5,5,8,0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 22px;
  position: fixed;
  top: 0; left: var(--sidebar-w); right: 0;
  z-index: 90;
}

.header-left { display: flex; align-items: center; gap: 12px; }

.network-badge { display: flex; align-items: center; gap: 6px; padding: 5px 12px; background: rgba(99,102,241,0.1); border: 1px solid var(--border); border-radius: 20px; font-size: 11px; color: var(--text-accent); }

.network-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent-green); box-shadow: 0 0 8px var(--accent-green); animation: pulse-dot 2s infinite; }

@keyframes pulse-dot { 0%,100% { opacity: 1; } 50% { opacity: 0.5; } }

.eth-price-badge { display: flex; align-items: center; gap: 6px; padding: 5px 12px; background: rgba(245,158,11,0.08); border: 1px solid rgba(245,158,11,0.2); border-radius: 20px; font-size: 11px; color: var(--accent-gold); }

.header-right { display: flex; align-items: center; gap: 12px; }

/* ── Main Content ── */
.main-content {
  margin-left: var(--sidebar-w);
  margin-top: var(--header-h);
  min-height: calc(100vh - var(--header-h));
  position: relative;
  z-index: 1;
}

.page { display: none; padding: 26px; animation: fadeIn 0.25s ease; }
.page.active { display: block; }

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

/* ── Cards ── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 20px;
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition);
}

.card:hover { border-color: var(--border); }
.card-glow { position: absolute; inset: 0; background: radial-gradient(circle at top left, var(--primary-glow) 0%, transparent 60%); opacity: 0; transition: opacity 0.4s; pointer-events: none; }
.card:hover .card-glow { opacity: 1; }

.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.card-title { font-family: var(--font-display); font-weight: 700; font-size: 14px; color: var(--text-primary); }
.card-icon { width: 32px; height: 32px; background: rgba(99,102,241,0.1); border: 1px solid var(--border); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; font-size: 15px; }

/* ── Stat Cards ── */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; margin-bottom: 24px; }

.stat-card {
  background: var(--bg-card); border: 1px solid var(--border-card);
  border-radius: var(--radius-lg); padding: 18px;
  position: relative; overflow: hidden;
  transition: all var(--transition);
}

.stat-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: linear-gradient(90deg, var(--primary), var(--secondary)); opacity: 0; transition: opacity var(--transition); }
.stat-card:hover { border-color: var(--border); transform: translateY(-2px); }
.stat-card:hover::before { opacity: 1; }

.stat-label { font-size: 9px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 8px; }
.stat-value { font-family: var(--font-display); font-weight: 800; font-size: 24px; color: var(--text-primary); line-height: 1; margin-bottom: 4px; }
.stat-value.accent { color: var(--primary); }
.stat-value.green  { color: var(--accent-green); }
.stat-value.gold   { color: var(--accent-gold); }
.stat-value.cyan   { color: var(--accent); }
.stat-value.red    { color: var(--accent-red); }
.stat-sub { font-size: 10px; color: var(--text-secondary); }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  padding: 9px 18px; border-radius: var(--radius-md);
  font-family: var(--font-mono); font-size: 12px; font-weight: 500;
  cursor: pointer; border: none; transition: all var(--transition);
  white-space: nowrap; text-decoration: none; letter-spacing: 0.02em;
}

.btn:disabled { opacity: 0.45; cursor: not-allowed; pointer-events: none; }

.btn-primary { background: linear-gradient(135deg, var(--primary), var(--secondary)); color: #fff; box-shadow: 0 4px 15px rgba(99,102,241,0.35); }
.btn-primary:hover { box-shadow: 0 6px 24px rgba(99,102,241,0.55); transform: translateY(-1px); }

.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text-secondary); }
.btn-outline:hover { border-color: var(--primary); color: var(--text-accent); background: rgba(99,102,241,0.08); }

.btn-ghost { background: var(--bg-elevated); border: 1px solid var(--border-card); color: var(--text-secondary); }
.btn-ghost:hover { background: var(--bg-hover); color: var(--text-primary); }

.btn-danger { background: rgba(239,68,68,0.12); border: 1px solid rgba(239,68,68,0.3); color: var(--accent-red); }
.btn-danger:hover { background: rgba(239,68,68,0.2); }

.btn-success { background: rgba(16,185,129,0.12); border: 1px solid rgba(16,185,129,0.3); color: var(--accent-green); }
.btn-success:hover { background: rgba(16,185,129,0.22); }

.btn-gold { background: rgba(245,158,11,0.12); border: 1px solid rgba(245,158,11,0.3); color: var(--accent-gold); }
.btn-gold:hover { background: rgba(245,158,11,0.22); }

.btn-sm { padding: 5px 11px; font-size: 11px; }
.btn-lg { padding: 13px 26px; font-size: 14px; }
.btn-full { width: 100%; }

/* ── Wallet Button ── */
.wallet-btn { display: flex; align-items: center; gap: 8px; padding: 7px 16px; background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius-md); cursor: pointer; font-family: var(--font-mono); font-size: 12px; color: var(--text-secondary); transition: all var(--transition); }
.wallet-btn:hover { border-color: var(--primary); color: var(--text-accent); }
.wallet-btn.connected { background: rgba(99,102,241,0.1); border-color: var(--border-glow); color: var(--text-accent); }
.wallet-avatar { width: 20px; height: 20px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), var(--accent)); flex-shrink: 0; }

/* ── Badges ── */
.badge { display: inline-flex; align-items: center; padding: 2px 9px; border-radius: 20px; font-size: 10px; font-weight: 600; letter-spacing: 0.05em; }
.badge-green { background: rgba(16,185,129,0.12); color: var(--accent-green); border: 1px solid rgba(16,185,129,0.25); }
.badge-gold  { background: rgba(245,158,11,0.12); color: var(--accent-gold);  border: 1px solid rgba(245,158,11,0.25); }
.badge-red   { background: rgba(239,68,68,0.12);  color: var(--accent-red);   border: 1px solid rgba(239,68,68,0.25); }
.badge-cyan  { background: rgba(34,211,238,0.1);  color: var(--accent);       border: 1px solid rgba(34,211,238,0.25); }
.badge-primary { background: rgba(99,102,241,0.15); color: var(--text-accent); border: 1px solid var(--border); }

.tier-0  { background: rgba(100,100,120,0.15); color: #8b8ba7; border: 1px solid rgba(100,100,120,0.3); }
.tier-1  { background: rgba(99,102,241,0.12);  color: #a5b4fc; border: 1px solid rgba(99,102,241,0.3); }
.tier-2  { background: rgba(139,92,246,0.12);  color: #c4b5fd; border: 1px solid rgba(139,92,246,0.3); }
.tier-3  { background: rgba(236,72,153,0.1);   color: #f9a8d4; border: 1px solid rgba(236,72,153,0.25); }
.tier-4  { background: rgba(34,211,238,0.1);   color: #67e8f9; border: 1px solid rgba(34,211,238,0.25); }
.tier-5  { background: rgba(16,185,129,0.1);   color: #6ee7b7; border: 1px solid rgba(16,185,129,0.25); }
.tier-6  { background: rgba(245,158,11,0.1);   color: #fcd34d; border: 1px solid rgba(245,158,11,0.25); }
.tier-7  { background: rgba(249,115,22,0.1);   color: #fdba74; border: 1px solid rgba(249,115,22,0.25); }
.tier-8  { background: rgba(239,68,68,0.1);    color: #fca5a5; border: 1px solid rgba(239,68,68,0.25); }
.tier-20 { background: linear-gradient(135deg,rgba(245,158,11,0.15),rgba(239,68,68,0.15)); color: #fbbf24; border: 1px solid rgba(245,158,11,0.35); }

/* ── Matrix ── */
.matrix-viz { background: var(--bg-panel); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px; overflow-x: auto; }
.matrix-tree { display: flex; flex-direction: column; align-items: center; gap: 0; min-width: 500px; }
.matrix-row { display: flex; justify-content: center; gap: 10px; padding: 8px 0; }

.matrix-node { display: flex; flex-direction: column; align-items: center; gap: 4px; }

.matrix-node-circle { width: 50px; height: 50px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 10px; font-weight: 600; cursor: pointer; transition: all 0.2s; border: 2px solid transparent; }
.matrix-node-circle.me     { background: linear-gradient(135deg, var(--accent-gold), var(--accent)); color: #000; border-color: var(--accent-gold); box-shadow: 0 0 20px rgba(245,158,11,0.4); }
.matrix-node-circle.filled { background: linear-gradient(135deg, var(--primary), var(--secondary)); color: #fff; border-color: var(--primary); box-shadow: 0 0 15px var(--primary-glow); }
.matrix-node-circle.empty  { background: var(--bg-elevated); border: 2px dashed var(--border); color: var(--text-muted); }
.matrix-node-circle:hover  { transform: scale(1.1); z-index: 1; }

.matrix-node-label { font-size: 9px; color: var(--text-muted); max-width: 60px; text-align: center; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.matrix-connector  { width: 2px; height: 16px; background: var(--border); margin: 0 auto; }

/* ── Tables ── */
.table-wrapper { overflow-x: auto; border-radius: var(--radius-md); border: 1px solid var(--border-card); }
table { width: 100%; border-collapse: collapse; font-size: 12px; }
thead th { background: var(--bg-elevated); padding: 11px 14px; text-align: left; font-size: 9px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-muted); font-weight: 500; border-bottom: 1px solid var(--border); white-space: nowrap; }
tbody td { padding: 11px 14px; border-bottom: 1px solid rgba(255,255,255,0.03); color: var(--text-secondary); vertical-align: middle; }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: var(--bg-hover); color: var(--text-primary); }

/* ── Modals ── */
.modal-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.75); backdrop-filter: blur(10px); z-index: 200; align-items: center; justify-content: center; padding: 20px; }
.modal-overlay.active { display: flex; animation: fadeIn 0.2s ease; }

.modal { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-xl); padding: 26px; width: 100%; max-width: 480px; box-shadow: var(--shadow-card), 0 0 60px rgba(99,102,241,0.15); max-height: 90vh; overflow-y: auto; }

.modal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.modal-title { font-family: var(--font-display); font-weight: 700; font-size: 17px; }
.modal-close { width: 28px; height: 28px; border-radius: var(--radius-sm); background: var(--bg-elevated); border: 1px solid var(--border-card); cursor: pointer; display: flex; align-items: center; justify-content: center; color: var(--text-muted); font-size: 16px; transition: all var(--transition); }
.modal-close:hover { background: rgba(239,68,68,0.12); border-color: rgba(239,68,68,0.3); color: var(--accent-red); }

/* ── Forms ── */
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 10px; color: var(--text-secondary); margin-bottom: 6px; letter-spacing: 0.05em; text-transform: uppercase; }

.form-input, .form-select {
  width: 100%; background: var(--bg-elevated); border: 1px solid var(--border-card);
  border-radius: var(--radius-md); padding: 9px 13px;
  font-family: var(--font-mono); font-size: 12px; color: var(--text-primary);
  outline: none; transition: border-color var(--transition); appearance: none;
}

.form-input:focus, .form-select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-glow); }
.form-input::placeholder { color: var(--text-muted); }

/* Tier grid */
.tier-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); gap: 8px; margin-top: 8px; }
.tier-option { border: 1px solid var(--border-card); border-radius: var(--radius-md); padding: 10px 8px; cursor: pointer; text-align: center; transition: all var(--transition); background: var(--bg-elevated); }
.tier-option:hover { border-color: var(--primary); background: rgba(99,102,241,0.08); }
.tier-option.selected { border-color: var(--primary); background: rgba(99,102,241,0.15); box-shadow: 0 0 12px var(--primary-glow); }
.tier-option-name { font-family: var(--font-display); font-size: 11px; font-weight: 700; color: var(--text-primary); margin-bottom: 2px; }
.tier-option-cost { font-size: 10px; color: var(--text-muted); }
.tier-option-ltum { font-size: 10px; color: var(--accent-green); margin-top: 2px; }

/* ── Toast ── */
#toast-container { position: fixed; top: 74px; right: 18px; z-index: 9999; display: flex; flex-direction: column; gap: 8px; max-width: 340px; width: 100%; }

.toast { display: flex; align-items: flex-start; gap: 9px; padding: 11px 13px; border-radius: var(--radius-md); background: var(--bg-elevated); border: 1px solid var(--border); font-size: 12px; color: var(--text-primary); box-shadow: var(--shadow-card); transform: translateX(120%); opacity: 0; transition: all 0.35s cubic-bezier(0.34,1.56,0.64,1); }
.toast.toast-show { transform: translateX(0); opacity: 1; }
.toast-success { border-color: rgba(16,185,129,0.4); }
.toast-error   { border-color: rgba(239,68,68,0.4); }
.toast-warning { border-color: rgba(245,158,11,0.4); }
.toast-tx      { border-color: rgba(34,211,238,0.4); }
.toast-icon { font-size: 14px; flex-shrink: 0; }
.toast-success .toast-icon { color: var(--accent-green); }
.toast-error   .toast-icon { color: var(--accent-red); }
.toast-warning .toast-icon { color: var(--accent-gold); }
.toast-tx      .toast-icon { color: var(--accent); }
.toast-msg { flex: 1; line-height: 1.4; }
.toast-msg a { color: var(--text-accent); }
.toast-close { background: none; border: none; cursor: pointer; color: var(--text-muted); font-size: 16px; line-height: 1; flex-shrink: 0; }

/* ── Spinner ── */
.spinner { width: 14px; height: 14px; border: 2px solid rgba(255,255,255,0.2); border-top-color: #fff; border-radius: 50%; animation: spin 0.7s linear infinite; display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Event Feed ── */
.event-feed { display: flex; flex-direction: column; gap: 6px; max-height: 320px; overflow-y: auto; }
.event-item { display: flex; align-items: center; gap: 9px; padding: 9px 11px; background: var(--bg-elevated); border: 1px solid var(--border-card); border-radius: var(--radius-md); font-size: 11px; animation: slideInRight 0.3s ease; }
@keyframes slideInRight { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: translateX(0); } }
.event-icon { font-size: 15px; flex-shrink: 0; }
.event-text { flex: 1; color: var(--text-secondary); }
.event-time { color: var(--text-muted); font-size: 10px; white-space: nowrap; }

/* ── Level Grid ── */
.levels-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 10px; }
.level-card { background: var(--bg-elevated); border: 1px solid var(--border-card); border-radius: var(--radius-md); padding: 13px; text-align: center; transition: all var(--transition); position: relative; overflow: hidden; }
.level-card.active-level { border-color: var(--primary); background: rgba(99,102,241,0.1); }
.level-card.active-level::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: linear-gradient(90deg, var(--primary), var(--secondary)); }
.level-card:hover { border-color: var(--border); transform: translateY(-2px); }
.level-num { font-family: var(--font-display); font-size: 20px; font-weight: 800; color: var(--text-primary); line-height: 1; }
.level-cost { font-size: 10px; color: var(--text-muted); margin-top: 3px; }
.level-status { margin-top: 8px; }

/* ── Referral Box ── */
.referral-box { background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 12px 14px; display: flex; align-items: center; gap: 9px; }
.referral-link { flex: 1; font-size: 11px; color: var(--text-secondary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ── Divider ── */
.divider { height: 1px; background: var(--border-card); margin: 18px 0; }

/* ── Info Box ── */
.info-box { background: rgba(99,102,241,0.08); border: 1px solid rgba(99,102,241,0.2); border-radius: var(--radius-md); padding: 11px 15px; font-size: 12px; color: var(--text-secondary); line-height: 1.6; }
.info-box.warning { background: rgba(245,158,11,0.08); border-color: rgba(245,158,11,0.2); color: var(--accent-gold); }
.info-box.success { background: rgba(16,185,129,0.08); border-color: rgba(16,185,129,0.2); color: var(--accent-green); }
.info-box.error   { background: rgba(239,68,68,0.08);  border-color: rgba(239,68,68,0.2);  color: var(--accent-red); }

/* ── Progress Bar ── */
.progress-bar { height: 4px; background: var(--bg-elevated); border-radius: 2px; overflow: hidden; }
.progress-fill { height: 100%; background: linear-gradient(90deg, var(--primary), var(--secondary)); border-radius: 2px; transition: width 0.6s cubic-bezier(0.4,0,0.2,1); }

/* ── Page Header ── */
.page-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 22px; flex-wrap: wrap; gap: 12px; }
.page-title { font-family: var(--font-display); font-weight: 800; font-size: 24px; color: var(--text-primary); letter-spacing: -0.02em; line-height: 1.1; }
.page-subtitle { font-size: 11px; color: var(--text-muted); margin-top: 4px; }

/* ── Grids ── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }

/* ── Tabs ── */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 18px; flex-wrap: wrap; }
.tab { padding: 9px 16px; cursor: pointer; font-size: 12px; color: var(--text-secondary); border-bottom: 2px solid transparent; margin-bottom: -1px; transition: all var(--transition); font-family: var(--font-mono); }
.tab:hover { color: var(--text-primary); }
.tab.active { color: var(--text-accent); border-bottom-color: var(--primary); }

/* ── Connect Prompt ── */
.connect-prompt { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 70px 20px; text-align: center; gap: 14px; }
.connect-prompt-icon { font-size: 48px; opacity: 0.5; }
.connect-prompt-title { font-family: var(--font-display); font-size: 20px; font-weight: 700; color: var(--text-primary); }
.connect-prompt-sub { font-size: 12px; color: var(--text-muted); max-width: 280px; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: var(--bg-base); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

/* ── Hamburger ── */
.hamburger { display: none; flex-direction: column; gap: 4px; cursor: pointer; padding: 4px; }
.hamburger span { display: block; width: 18px; height: 2px; background: var(--text-secondary); border-radius: 2px; transition: all var(--transition); }

/* ── Misc ── */
.divider-v { width: 1px; background: var(--border-card); }
.accent-line { width: 100%; height: 1px; background: linear-gradient(90deg, transparent, var(--primary), var(--secondary), transparent); opacity: 0.35; margin: 18px 0; }
.addr { font-family: var(--font-mono); font-size: 11px; color: var(--text-accent); cursor: pointer; }
.addr:hover { text-decoration: underline; }
.not-registered { text-align: center; padding: 40px; color: var(--text-muted); }
.modal-open { overflow: hidden; }

/* ── Hero Banner ── */
.hero-banner { background: linear-gradient(135deg, rgba(99,102,241,0.1), rgba(139,92,246,0.07)); border: 1px solid rgba(99,102,241,0.2); border-radius: var(--radius-xl); padding: 28px; position: relative; overflow: hidden; margin-bottom: 24px; }
.hero-banner::after { content: ''; position: absolute; top: -50%; right: -10%; width: 400px; height: 400px; background: radial-gradient(circle, rgba(99,102,241,0.12) 0%, transparent 70%); pointer-events: none; }

/* ── Claim Banner ── */
.claim-banner { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; background: rgba(16,185,129,0.06); border: 1px solid rgba(16,185,129,0.2); border-radius: var(--radius-lg); padding: 16px 20px; margin-bottom: 18px; }

/* ── Airdrop / Countdown ── */
.airdrop-section { background: linear-gradient(135deg, rgba(245,158,11,0.07), rgba(239,68,68,0.05)); border: 1px solid rgba(245,158,11,0.2); border-radius: var(--radius-xl); padding: 24px; margin-bottom: 24px; position: relative; overflow: hidden; }
.airdrop-section::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: linear-gradient(90deg, var(--accent-gold), var(--accent-red), var(--secondary)); }

.countdown-row { display: flex; gap: 12px; margin: 16px 0; }
.cd-unit { flex: 1; text-align: center; }
.cd-num { font-family: var(--font-display); font-size: 30px; font-weight: 800; color: var(--accent-gold); background: rgba(245,158,11,0.08); border: 1px solid rgba(245,158,11,0.2); border-radius: var(--radius-md); padding: 8px 4px; display: block; line-height: 1; }
.cd-label { font-size: 9px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; margin-top: 6px; font-family: var(--font-mono); }

.airdrop-progress-wrap { margin-top: 16px; }
.airdrop-progress-track { height: 6px; background: var(--bg-elevated); border-radius: 3px; overflow: hidden; margin-bottom: 8px; }
.airdrop-progress-fill { height: 100%; border-radius: 3px; background: linear-gradient(90deg, var(--accent-gold), var(--accent-red)); transition: width 0.6s ease; }
.airdrop-progress-labels { display: flex; justify-content: space-between; font-size: 9px; color: var(--text-muted); font-family: var(--font-mono); }

/* ── Level Bonus Section ── */
.bonus-section { background: rgba(16,185,129,0.06); border: 1px solid rgba(16,185,129,0.2); border-radius: var(--radius-lg); padding: 18px 20px; margin-bottom: 20px; }
.bonus-section.can-claim { border-color: rgba(16,185,129,0.4); animation: bonusPulse 2.5s ease-in-out infinite; }
@keyframes bonusPulse { 0%,100% { box-shadow: 0 0 0 rgba(16,185,129,0); } 50% { box-shadow: 0 0 22px rgba(16,185,129,0.15); } }

.bonus-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 14px; flex-wrap: wrap; gap: 10px; }
.bonus-amount { font-family: var(--font-display); font-size: 22px; font-weight: 800; color: var(--accent-green); }
.bonus-timer-display { font-family: var(--font-mono); font-size: 26px; font-weight: 700; }
.bonus-timer-display.timer-ready { color: var(--accent-green); animation: timerPulse 1s ease-in-out infinite; }
.bonus-timer-display.timer-ticking { color: var(--accent); }
@keyframes timerPulse { 0%,100% { opacity: 1; } 50% { opacity: 0.55; } }

.bonus-progress-bar { height: 4px; background: var(--bg-elevated); border-radius: 2px; overflow: hidden; margin-top: 10px; }
.bonus-progress-fill { height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-green)); transition: width 0.3s ease; }

/* ── ETH Info Blocks ── */
.eth-info-block { background: rgba(99,102,241,0.07); border: 1px solid rgba(99,102,241,0.2); border-radius: var(--radius-md); padding: 14px; }
.eth-info-block h4 { font-size: 12px; font-weight: 700; color: var(--text-accent); margin-bottom: 6px; }
.eth-info-block p { font-size: 11px; color: var(--text-secondary); line-height: 1.6; }
.eth-info-block--cyan { background: rgba(34,211,238,0.06); border-color: rgba(34,211,238,0.2); }
.eth-info-block--cyan h4 { color: var(--accent); }

/* ── Team member row ── */
.team-member { display: flex; align-items: center; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--border-card); }
.team-member:last-child { border-bottom: none; }
.team-avatar { width: 32px; height: 32px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), var(--accent)); display: flex; align-items: center; justify-content: center; font-size: 11px; font-weight: 700; flex-shrink: 0; color: #fff; }
.team-info { flex: 1; }
.team-name { font-size: 12px; color: var(--text-primary); }
.team-sub  { font-size: 10px; color: var(--text-muted); margin-top: 1px; }

/* ── Admin grid ── */
.admin-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.admin-card { background: var(--bg-card); border: 1px solid var(--border-card); border-radius: var(--radius-lg); padding: 18px; }
.admin-card-title { font-family: var(--font-display); font-size: 14px; font-weight: 700; margin-bottom: 14px; display: flex; align-items: center; gap: 7px; }
.admin-row { display: flex; align-items: center; justify-content: space-between; padding: 10px 12px; background: var(--bg-elevated); border-radius: var(--radius-md); margin-bottom: 8px; }
.admin-row-label { font-size: 12px; font-weight: 600; color: var(--text-primary); }
.admin-row-sub { font-size: 10px; color: var(--text-muted); margin-top: 2px; }

/* ── Responsive ── */
@media (max-width: 900px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); box-shadow: 10px 0 40px rgba(0,0,0,0.6); z-index: 200; }
  .sidebar-overlay { display: block; }
  .main-content { margin-left: 0; }
  .header { left: 0; }
  .hamburger { display: flex; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .page { padding: 14px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .countdown-row { gap: 8px; }
  .cd-num { font-size: 22px; }
  .admin-grid { grid-template-columns: 1fr; }
  .page-header { flex-direction: column; gap: 10px; align-items: flex-start; }
  .matrix-node { min-width: 54px; max-width: 70px; font-size: 9px; }
  .claim-banner { flex-direction: column; gap: 12px; align-items: flex-start; }
  .hero-banner { padding: 24px 20px; }
  .tab { padding: 8px 12px; font-size: 11px; }
  .modal { max-width: calc(100vw - 24px); margin: 12px; }
  .airdrop-section { padding: 18px; }
  .bonus-header { flex-wrap: wrap; gap: 12px; }
}

@media (max-width: 600px) {
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
  .tier-grid  { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .levels-grid { grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .header-left .eth-price-badge { display: none; }
  .page { padding: 12px 10px; }
  .card { padding: 14px; }
  .stat-card { padding: 12px; }
  .stat-value { font-size: 18px; }
  .hero-banner { padding: 20px 14px; }
  .wallet-btn span { max-width: 100px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .countdown-row { gap: 6px; }
  .cd-num { font-size: 18px; }
  .cd-label { font-size: 8px; }
  .matrix-tree { overflow-x: auto; }
  .admin-card { padding: 14px; }
  .form-input, .form-select { font-size: 14px; }
  .page-title { font-size: 18px; }
  .page-subtitle { font-size: 11px; }
  .level-card { padding: 10px 6px; }
  .level-num { font-size: 20px; }
  .level-cost { font-size: 9px; }
  .level-card .btn { font-size: 9px; padding: 4px 8px; }
}

@media (max-width: 380px) {
  .stats-grid { grid-template-columns: 1fr; }
  .tier-grid  { grid-template-columns: repeat(2, 1fr); }
  .levels-grid { grid-template-columns: repeat(2, 1fr); }
  .header { padding: 0 10px; }
  .logo-text { display: none; }
  .wallet-btn { padding: 6px 10px; font-size: 11px; }
}

/* Sidebar overlay for mobile */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 150;
}
@media (max-width: 900px) {
  .sidebar-overlay.visible { display: block; }
}

/* Prevent horizontal scroll on small screens */
.app-shell, .main-content, .page { max-width: 100vw; overflow-x: hidden; }
img, video, canvas { max-width: 100%; height: auto; }
table { display: block; overflow-x: auto; width: 100%; }