:root {
    --bg:        #0a0f1e;
    --sidebar:   #090d1a;
    --card:      #111827;
    --border:    #1e2a42;
    --primary:   #4f8ef7;
    --primary-d: #3a75e0;
    --support:   #4f8ef7;
    --success:   #22c55e;
    --warning:   #eab308;
    --danger:    #ef4444;
    --info:      #38bdf8;
    --text:      #e2e8f0;
    --muted:     #64748b;
    --sidebar-w: 240px;
}

* { box-sizing: border-box; }

body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
    margin: 0;
    min-height: 100vh;
}

/* ── Sidebar ───────────────────────────────────── */
.sidebar {
    position: fixed;
    top: 0; left: 0;
    width: var(--sidebar-w);
    height: 100vh;
    background: var(--sidebar);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    z-index: 1000;
    transition: width 0.2s ease;
    overflow-y: auto;
}

.sidebar-logo {
    padding: 24px 20px;
    border-bottom: 1px solid var(--border);
    text-decoration: none;
}

.sidebar-logo .logo-text {
    font-size: 20px;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: -0.5px;
}

.sidebar-logo .logo-sub {
    font-size: 11px;
    color: var(--muted);
    margin-top: 2px;
}

.sidebar-nav { padding: 16px 0; flex: 1; }

.nav-section-label {
    padding: 8px 20px 4px;
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 1px;
    color: var(--muted);
    text-transform: uppercase;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 20px;
    color: #94a3b8;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    border-left: 3px solid transparent;
    transition: all 0.15s;
}

.sidebar-nav a:hover {
    color: var(--text);
    background: rgba(79,142,247,0.08);
}

.sidebar-nav a.active {
    color: var(--primary);
    background: rgba(79,142,247,0.12);
    border-left-color: var(--primary);
}

.sidebar-nav a i { width: 18px; text-align: center; font-size: 15px; }

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border);
}

.sidebar-footer a {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--muted);
    text-decoration: none;
    font-size: 14px;
    padding: 8px 0;
    transition: color 0.15s;
}

.sidebar-footer a:hover { color: var(--danger); }

/* ── Main content ──────────────────────────────── */
.main-content {
    margin-left: var(--sidebar-w);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: margin-left 0.2s ease;
}

/* ── Top navbar ────────────────────────────────── */
.top-navbar {
    background: var(--sidebar);
    border-bottom: 1px solid var(--border);
    padding: 14px 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
}

.top-navbar .page-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    margin: 0;
}

.top-navbar .nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.notif-btn {
    position: relative;
    color: var(--muted);
    font-size: 18px;
    text-decoration: none;
    transition: color 0.15s;
}

.notif-btn:hover { color: var(--text); }

.notif-badge {
    position: absolute;
    top: -4px; right: -6px;
    background: var(--danger);
    color: #fff;
    font-size: 10px;
    border-radius: 99px;
    padding: 1px 5px;
    font-weight: 700;
    min-width: 16px;
    text-align: center;
}

.user-pill {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 99px;
    padding: 6px 14px 6px 8px;
    text-decoration: none;
    color: var(--text);
    font-size: 13px;
    font-weight: 500;
    transition: border-color 0.15s;
}

.user-pill:hover { border-color: var(--primary); color: var(--text); }

.avatar-circle {
    width: 30px; height: 30px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), #7c3aed);
    display: flex; align-items: center; justify-content: center;
    font-size: 12px; font-weight: 700; color: #fff;
    flex-shrink: 0;
}

/* ── Page body ─────────────────────────────────── */
.page-body { padding: 28px; flex: 1; }

/* ── Cards ─────────────────────────────────────── */
.card-dark {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
}

.card-dark .card-header {
    background: transparent;
    border-bottom: 1px solid var(--border);
    padding: 16px 20px;
    font-weight: 600;
    color: var(--text);
}

.card-dark .card-body { padding: 20px; }

/* ── Stat cards ────────────────────────────────── */
.stat-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 22px 22px;
    display: flex;
    align-items: center;
    gap: 18px;
}

.stat-card .stat-icon {
    width: 52px; height: 52px;
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}

.stat-card .stat-label {
    font-size: 12px;
    color: var(--muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-card .stat-value {
    font-size: 26px;
    font-weight: 800;
    color: var(--text);
    line-height: 1.2;
    margin-top: 4px;
}

.stat-card .stat-sub {
    font-size: 12px;
    color: var(--muted);
    margin-top: 2px;
}

/* ── Tables ────────────────────────────────────── */
.table-dark-custom {
    color: var(--text);
    border-color: var(--border);
    margin: 0;
}

.table-dark-custom thead th {
    background: rgba(255,255,255,0.03);
    border-color: var(--border);
    color: var(--muted);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 12px 16px;
}

.table-dark-custom tbody td {
    border-color: var(--border);
    padding: 14px 16px;
    vertical-align: middle;
    font-size: 14px;
}

.table-dark-custom tbody tr:hover { background: rgba(255,255,255,0.02); }

/* ── Forms ─────────────────────────────────────── */
.form-control-dark,
.form-select-dark {
    background: var(--bg) !important;
    border: 1px solid var(--border) !important;
    color: var(--text) !important;
    border-radius: 8px;
}

.form-control-dark:focus,
.form-select-dark:focus {
    border-color: var(--primary) !important;
    box-shadow: 0 0 0 3px rgba(79,142,247,0.15) !important;
    outline: none;
}

.form-control-dark::placeholder { color: var(--muted) !important; }
.form-select-dark option { background: var(--card); }

.form-label { font-size: 13px; font-weight: 500; color: #94a3b8; margin-bottom: 6px; }

/* ── Buttons ────────────────────────────────────── */
.btn-primary-custom {
    background: var(--primary);
    border: none;
    color: #fff;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: background 0.15s;
}

.btn-primary-custom:hover { background: var(--primary-d); color: #fff; }

/* ── Badges ─────────────────────────────────────── */
.badge { font-weight: 600; font-size: 11px; padding: 4px 8px; border-radius: 6px; }

/* ── Coin tags ──────────────────────────────────── */
.coin-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(255,255,255,0.05);
    border-radius: 6px;
    padding: 3px 8px;
    font-size: 12px;
    font-weight: 600;
}

/* ── Auth pages ─────────────────────────────────── */
.auth-wrap {
    min-height: 100vh;
    background: var(--bg);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.auth-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 40px;
    width: 100%;
    max-width: 420px;
}

.auth-logo {
    text-align: center;
    margin-bottom: 32px;
}

.auth-logo .brand {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
    display: block;
    letter-spacing: -1px;
}

.auth-logo .tagline {
    font-size: 13px;
    color: var(--muted);
    margin-top: 4px;
}

/* ── Wallet address box ──────────────────────────── */
.wallet-box {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 16px;
    font-family: 'Courier New', monospace;
    font-size: 13px;
    word-break: break-all;
    color: var(--primary);
}

/* ── Notification item ──────────────────────────── */
.notif-item {
    display: flex;
    gap: 14px;
    padding: 14px 20px;
    border-bottom: 1px solid var(--border);
    transition: background 0.1s;
}

.notif-item:last-child { border-bottom: none; }
.notif-item:hover { background: rgba(255,255,255,0.02); }
.notif-item.unread { background: rgba(79,142,247,0.05); }

.notif-icon {
    width: 38px; height: 38px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

/* ── Sidebar collapse (desktop rail) ────────────── */
.sidebar-toggle {
    width: 36px; height: 36px;
    border-radius: 9px;
    border: 1px solid var(--border);
    background: var(--card);
    color: var(--muted);
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
    font-size: 15px;
    transition: all 0.15s;
    flex-shrink: 0;
}
.sidebar-toggle:hover { color: var(--primary); border-color: var(--primary); }

@media (min-width: 768px) {
    body.sidebar-collapsed .sidebar { width: 74px; }
    body.sidebar-collapsed .sidebar .logo-sub,
    body.sidebar-collapsed .sidebar .nav-section-label,
    body.sidebar-collapsed .sidebar-nav a span,
    body.sidebar-collapsed .sidebar-nav a .badge,
    body.sidebar-collapsed .sidebar-footer a span { display: none; }
    body.sidebar-collapsed .sidebar .logo-text { font-size: 15px; text-align: center; }
    body.sidebar-collapsed .sidebar-nav a { justify-content: center; padding: 12px 0; gap: 0; }
    body.sidebar-collapsed .sidebar-footer a { justify-content: center; }
    body.sidebar-collapsed .main-content { margin-left: 74px; }
}

/* ── Responsive ─────────────────────────────────── */
@media (max-width: 767.98px) {
    .sidebar { transform: translateX(-100%); transition: transform 0.3s; }
    .sidebar.open { transform: translateX(0); }
    .main-content { margin-left: 0 !important; }
    .sidebar-collapse-btn { display: none !important; }
}

/* ── Google Translate widget (blend with theme) ─── */
.gtranslate-wrap { display: inline-flex; align-items: center; }
#google_translate_element .goog-te-gadget { color: transparent !important; font-size: 0 !important; }
#google_translate_element .goog-te-gadget .goog-te-combo {
    color: var(--text); background: var(--card); border: 1px solid var(--border);
    border-radius: 8px; padding: 6px 10px; font-size: 13px; font-family: inherit; margin: 0;
}
#google_translate_element img { display: none; }
.goog-te-banner-frame, .skiptranslate iframe { display: none !important; }
body { top: 0 !important; }

/* ── Scrollbar ──────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }

/* ── Utilities ──────────────────────────────────── */
.text-muted-custom { color: var(--muted) !important; }
.text-primary-custom { color: var(--primary) !important; }
.border-dark-custom { border-color: var(--border) !important; }
.bg-card { background: var(--card) !important; }

/* ── Light Theme ────────────────────────────────── */
.light-theme {
    --bg:      #f0f4f8;
    --sidebar: #ffffff;
    --card:    #ffffff;
    --border:  #e2e8f0;
    --text:    #1e293b;
    --muted:   #64748b;
    --primary: #2563eb;
    --primary-d: #1d4ed8;
}

.light-theme body { background: var(--bg); color: var(--text); }

.light-theme .sidebar {
    box-shadow: 1px 0 12px rgba(0,0,0,0.08);
}

.light-theme .sidebar-nav a { color: #475569; }
.light-theme .sidebar-nav a:hover { background: rgba(37,99,235,0.07); color: #1e293b; }
.light-theme .sidebar-nav a.active { background: rgba(37,99,235,0.1); color: var(--primary); }

.light-theme .top-navbar { box-shadow: 0 1px 8px rgba(0,0,0,0.06); }

.light-theme .table-dark-custom { color: var(--text); border-color: var(--border); }
.light-theme .table-dark-custom thead th { background: #f8fafc; color: var(--muted); border-color: var(--border); }
.light-theme .table-dark-custom tbody td { border-color: var(--border); }
.light-theme .table-dark-custom tbody tr:hover { background: rgba(0,0,0,0.02); }

.light-theme .form-control-dark,
.light-theme .form-select-dark {
    background: #f8fafc !important;
    border-color: #cbd5e1 !important;
    color: var(--text) !important;
}

.light-theme .auth-card { box-shadow: 0 8px 32px rgba(0,0,0,0.08); }

.light-theme .wallet-box { background: #f8fafc; border-color: #cbd5e1; color: var(--primary); }

.light-theme .notif-item:hover { background: rgba(0,0,0,0.02); }
.light-theme .notif-item.unread { background: rgba(37,99,235,0.04); }

.light-theme ::-webkit-scrollbar-track { background: var(--bg); }
.light-theme ::-webkit-scrollbar-thumb { background: #cbd5e1; }

/* Theme toggle button */
.theme-toggle {
    width: 36px; height: 36px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: var(--card);
    color: var(--muted);
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
    font-size: 15px;
    transition: all 0.15s;
    flex-shrink: 0;
}

.theme-toggle:hover { color: var(--primary); border-color: var(--primary); }