:root {
    --bg: #f8fafc; --bg-glass: rgba(255,255,255,0.72); --bg-glass-hover: rgba(255,255,255,0.88);
    --border: rgba(0,0,0,0.08); --text: #0f172a; --text-dim: #64748b; --text-inv: #fff;
    --brand: #0284c7; --brand-hover: #0369a1; --brand-glow: rgba(2,132,199,0.35);
    --blue: #3b82f6; --green: #10b981; --purple: #8b5cf6; --orange: #f59e0b; --red: #ef4444;
    --radius: 0.5rem; --radius-lg: 1rem; --radius-xl: 1.5rem;
    --shadow: 0 4px 6px -1px rgb(0 0 0 / .1); --shadow-glass: 0 8px 32px rgba(31,38,135,.06);
    --blur: blur(14px); --sidebar-w: 260px;
    --font: 'Inter', system-ui, sans-serif; --font-h: 'Outfit', sans-serif;
}
[data-theme="dark"] {
    --bg: #0b1120; --bg-glass: rgba(15,23,42,0.75); --bg-glass-hover: rgba(30,41,59,0.85);
    --border: rgba(255,255,255,0.08); --text: #f1f5f9; --text-dim: #94a3b8;
    --shadow-glass: 0 8px 32px rgba(0,0,0,.35);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: var(--font); background: var(--bg); color: var(--text); min-height: 100vh; overflow-x: hidden; transition: background .3s, color .3s; }
h1,h2,h3,h4 { font-family: var(--font-h); font-weight: 600; }
a { text-decoration: none; color: inherit; }

/* Ambient BG */
.bg-shape { position: fixed; border-radius: 50%; filter: blur(120px); z-index: -1; opacity: .45; animation: drift 25s infinite alternate ease-in-out; }
.shape-1 { width: 550px; height: 550px; background: radial-gradient(circle, var(--brand) 0%, transparent 70%); top: -180px; left: -180px; }
.shape-2 { width: 450px; height: 450px; background: radial-gradient(circle, var(--purple) 0%, transparent 70%); bottom: -120px; right: -120px; animation-delay: -12s; }
@keyframes drift { 0%{transform:translate(0,0) scale(1)} 100%{transform:translate(40px,40px) scale(1.08)} }

/* Glass */
.glass { background: var(--bg-glass); backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur); border: 1px solid var(--border); box-shadow: var(--shadow-glass); }
.glass-panel { background: var(--bg-glass); backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur); border: 1px solid var(--border); box-shadow: var(--shadow-glass); border-radius: var(--radius-lg); transition: transform .2s, box-shadow .2s; }

/* Utilities */
.hidden { display: none !important; }
.mt-4 { margin-top: 1rem; } .mt-6 { margin-top: 1.5rem; }
.w-full { width: 100%; } .p-6 { padding: 1.5rem; } .max-w-md { max-width: 28rem; }
.text-danger { color: var(--red); }
.flex-between { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; padding: .7rem 1.4rem; border-radius: var(--radius); font-weight: 500; font-size: .9rem; cursor: pointer; border: none; transition: all .2s; font-family: var(--font); }
.btn-primary { background: var(--brand); color: var(--text-inv); box-shadow: 0 4px 14px var(--brand-glow); }
.btn-primary:hover { background: var(--brand-hover); transform: translateY(-1px); }
.btn-primary:disabled { opacity: .5; cursor: not-allowed; transform: none; }
.btn-secondary { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--bg-glass-hover); }
.btn-white { background: #fff; color: #111; box-shadow: var(--shadow); }
.btn-icon { background: transparent; border: none; color: var(--text-dim); font-size: 1.2rem; cursor: pointer; padding: .45rem; border-radius: var(--radius); transition: all .2s; }
.btn-icon:hover { background: var(--bg-glass); color: var(--text); }
.btn-sm { padding: .4rem .8rem; font-size: .8rem; }
.badge { display: inline-block; padding: .2rem .6rem; border-radius: 999px; font-size: .75rem; font-weight: 600; }
.badge-admin { background: rgba(139,92,246,.15); color: var(--purple); }
.badge-amb { background: rgba(59,130,246,.15); color: var(--blue); }
.badge-paid { background: rgba(16,185,129,.15); color: var(--green); }
.badge-pending { background: rgba(245,158,11,.15); color: var(--orange); }
.badge-confirmed { background: rgba(16,185,129,.15); color: var(--green); }

/* Forms */
.input-group { display: flex; flex-direction: column; gap: .4rem; }
.input-group label { font-size: .82rem; font-weight: 500; color: var(--text-dim); }
.input-wrapper { position: relative; display: flex; align-items: center; }
.input-wrapper i { position: absolute; left: .9rem; color: var(--text-dim); font-size: 1.15rem; pointer-events: none; }
.input-wrapper input, .input-group input, .input-group select { width: 100%; padding: .7rem .9rem .7rem 2.7rem; border-radius: var(--radius); border: 1px solid var(--border); background: var(--bg-glass); color: var(--text); font-family: var(--font); font-size: .9rem; transition: all .2s; outline: none; }
.input-group input:not(.input-wrapper input), .input-group select { padding-left: .9rem; }
.input-wrapper input:focus, .input-group input:focus, .input-group select:focus { border-color: var(--brand); box-shadow: 0 0 0 3px var(--brand-glow); }

/* Views */
.view { display: none; min-height: 100vh; }
.view.active { display: flex; animation: fadeUp .35s ease forwards; }
@keyframes fadeUp { from{opacity:0;transform:translateY(8px)} to{opacity:1;transform:translateY(0)} }

/* Auth */
.auth-container { width: 100%; display: flex; justify-content: center; align-items: center; padding: 2rem; }
.auth-box { width: 100%; max-width: 420px; padding: 2.5rem; border-radius: var(--radius-xl); }
.auth-header { text-align: center; margin-bottom: 1.8rem; }
.brand-logo-login { width: 56px; height: 56px; margin: 0 auto 1rem; background: linear-gradient(135deg, var(--brand), var(--purple)); border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 1.6rem; font-weight: 700; color: #fff; font-family: var(--font-h); box-shadow: 0 4px 20px var(--brand-glow); }
.auth-header h2 { font-size: 1.6rem; }
.auth-header p { color: var(--text-dim); font-size: .9rem; margin-top: .3rem; }
.auth-tabs { display: flex; gap: .4rem; margin-bottom: 1.4rem; background: rgba(0,0,0,.04); padding: .25rem; border-radius: var(--radius); }
[data-theme="dark"] .auth-tabs { background: rgba(255,255,255,.04); }
.tab-btn { flex: 1; padding: .45rem; border: none; background: transparent; border-radius: .3rem; color: var(--text-dim); font-weight: 500; cursor: pointer; transition: all .2s; font-family: var(--font); font-size: .85rem; }
.tab-btn.active { background: var(--bg-glass-hover); color: var(--text); box-shadow: var(--shadow); }
.auth-form { display: none; } .auth-form.active { display: block; animation: fadeUp .25s ease; }
.auth-hint { text-align: center; font-size: .8rem; color: var(--text-dim); margin-top: .8rem; }
.otp-sent-info { display: flex; align-items: center; gap: .6rem; background: rgba(16,185,129,.08); border: 1px solid rgba(16,185,129,.2); padding: .8rem 1rem; border-radius: var(--radius); color: var(--green); }
.otp-sent-info i { font-size: 1.4rem; }
.otp-sent-info p { font-size: .85rem; }
.otp-inputs { display: flex; gap: .5rem; justify-content: center; margin-top: .4rem; }
.otp-digit { width: 46px; height: 54px; text-align: center; font-size: 1.3rem; font-weight: 700; font-family: var(--font); border: 1.5px solid var(--border); border-radius: var(--radius); background: var(--bg-glass); color: var(--text); outline: none; transition: all .2s; caret-color: var(--brand); }
.otp-digit:focus { border-color: var(--brand); box-shadow: 0 0 0 3px var(--brand-glow); }
.otp-digit.filled { border-color: var(--brand); background: rgba(2,132,199,.06); }
.lockout-banner { background: rgba(239,68,68,.1); border: 1px solid rgba(239,68,68,.2); padding: .8rem 1rem; border-radius: var(--radius); display: flex; align-items: center; gap: .5rem; margin-bottom: 1rem; color: var(--red); font-size: .85rem; }

/* Dashboard Layout */
.dashboard-layout { display: flex; width: 100%; min-height: 100vh; }
.sidebar { width: var(--sidebar-w); height: 100vh; position: sticky; top: 0; display: flex; flex-direction: column; border-radius: 0; border-right: 1px solid var(--border); z-index: 20; }
.sidebar-header { padding: 1.2rem 1.4rem; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--border); }
.brand { display: flex; align-items: center; gap: .6rem; }
.brand-icon { width: 30px; height: 30px; background: linear-gradient(135deg, var(--brand), var(--purple)); color: #fff; border-radius: 8px; display: flex; align-items: center; justify-content: center; font-weight: 700; font-family: var(--font-h); font-size: .9rem; }
.brand-name { font-weight: 700; font-size: 1.15rem; font-family: var(--font-h); }
.sidebar-nav { flex: 1; padding: 1.2rem; overflow-y: auto; display: flex; flex-direction: column; gap: .3rem; }
.nav-label { font-size: .7rem; text-transform: uppercase; letter-spacing: .06em; color: var(--text-dim); font-weight: 600; margin-bottom: .4rem; }
.nav-link { display: flex; align-items: center; gap: .7rem; padding: .65rem .9rem; border-radius: var(--radius); color: var(--text-dim); font-weight: 500; font-size: .88rem; transition: all .2s; }
.nav-link:hover { background: var(--bg-glass-hover); color: var(--text); }
.nav-link.active { background: var(--brand); color: #fff; }
.sidebar-footer { padding: 1.2rem; border-top: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.user-profile-mini { display: flex; align-items: center; gap: .6rem; }
.avatar { width: 36px; height: 36px; border-radius: 50%; background: var(--bg-glass-hover); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; font-weight: 600; color: var(--brand); font-size: .85rem; flex-shrink: 0; }
.user-info { display: flex; flex-direction: column; overflow: hidden; }
.user-name { font-weight: 600; font-size: .82rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 120px; }
.user-role { font-size: .7rem; color: var(--text-dim); text-transform: capitalize; }

/* Mobile Header */
.mobile-header { display: none; padding: .8rem 1rem; background: var(--bg-glass); backdrop-filter: var(--blur); border-bottom: 1px solid var(--border); align-items: center; justify-content: space-between; position: sticky; top: 0; z-index: 15; }

/* Main Content */
.main-content { flex: 1; overflow-y: auto; padding: 2rem; max-height: 100vh; }
.route { animation: fadeUp .3s ease; }
.page-header { margin-bottom: 1.8rem; }
.page-header h1 { font-size: 1.7rem; margin-bottom: .15rem; }
.page-header p { color: var(--text-dim); font-size: .9rem; }

/* Stats */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.2rem; }
.stat-card { padding: 1.3rem; display: flex; align-items: center; gap: 1rem; }
.stat-icon { width: 44px; height: 44px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 1.3rem; flex-shrink: 0; }
.bg-blue { background: rgba(59,130,246,.12); color: var(--blue); }
.bg-green { background: rgba(16,185,129,.12); color: var(--green); }
.bg-purple { background: rgba(139,92,246,.12); color: var(--purple); }
.bg-orange { background: rgba(245,158,11,.12); color: var(--orange); }
.stat-label { font-size: .78rem; color: var(--text-dim); font-weight: 500; }
.stat-card h3 { font-size: 1.4rem; margin-top: .15rem; }

/* Events Grid */
.events-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.5rem; }
.event-card { padding: 1.5rem; display: flex; flex-direction: column; gap: .8rem; }
.event-card-header { display: flex; justify-content: space-between; align-items: flex-start; }
.event-title { font-size: 1.15rem; font-weight: 700; color: var(--text); }
.event-desc { font-size: .88rem; color: var(--text-dim); line-height: 1.5; flex: 1; }
.event-meta { display: flex; gap: 1rem; font-size: .85rem; padding-top: .8rem; border-top: 1px solid var(--border); }
.event-meta div { display: flex; align-items: center; gap: .4rem; }

/* Referral Banner */
.referral-banner { padding: 1.8rem; position: relative; overflow: hidden; background: linear-gradient(135deg, rgba(2,132,199,.08), rgba(139,92,246,.08)); }
[data-theme="dark"] .referral-banner { background: linear-gradient(135deg, rgba(2,132,199,.18), rgba(139,92,246,.18)); }
.banner-content h3 { font-size: 1.15rem; display: flex; align-items: center; gap: .5rem; }
.banner-content p { color: var(--text-dim); font-size: .88rem; margin-top: .3rem; }
.link-copier { display: flex; align-items: center; gap: .4rem; background: var(--bg-glass-hover); padding: .4rem; border-radius: var(--radius); border: 1px solid var(--border); max-width: 450px; }
.link-copier input { flex: 1; background: transparent; border: none; color: var(--text); font-family: 'Courier New', monospace; font-size: .85rem; outline: none; padding: .3rem .5rem; }

/* Tables */
.section-header { padding: 1rem 1.3rem; border-bottom: 1px solid var(--border); }
.section-header h2 { font-size: 1rem; }
.table-wrap { width: 100%; overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; }
.data-table th, .data-table td { padding: .85rem 1.3rem; text-align: left; border-bottom: 1px solid var(--border); font-size: .88rem; white-space: nowrap; }
.data-table th { background: rgba(0,0,0,.02); font-size: .72rem; text-transform: uppercase; letter-spacing: .05em; color: var(--text-dim); font-weight: 600; }
[data-theme="dark"] .data-table th { background: rgba(255,255,255,.02); }
.data-table tbody tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover { background: var(--bg-glass-hover); }
.data-table .empty-row td { text-align: center; color: var(--text-dim); padding: 2rem; font-style: italic; }
.row-highlight { background: rgba(2,132,199,.08) !important; }

/* Modals */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.5); backdrop-filter: blur(4px); display: flex; justify-content: center; align-items: center; z-index: 100; }
.modal-box { width: 100%; max-width: 420px; padding: 1.8rem; margin: 1rem; }
.modal-header { display: flex; justify-content: space-between; align-items: center; }
.modal-actions { display: flex; justify-content: flex-end; gap: .8rem; }

/* Toasts */
.toast-container { position: fixed; bottom: 1.5rem; right: 1.5rem; display: flex; flex-direction: column; gap: .8rem; z-index: 9999; }
.toast { padding: .9rem 1.2rem; border-radius: var(--radius); background: var(--bg-glass-hover); backdrop-filter: var(--blur); border: 1px solid var(--border); box-shadow: var(--shadow); display: flex; align-items: center; gap: .6rem; animation: slideIn .3s ease; min-width: 280px; max-width: 400px; font-size: .88rem; }
.toast.success { border-left: 4px solid var(--green); } .toast.error { border-left: 4px solid var(--red); } .toast.info { border-left: 4px solid var(--brand); }
@keyframes slideIn { from{opacity:0;transform:translateX(40px)} to{opacity:1;transform:translateX(0)} }

/* Loader */
.global-loader { position: fixed; inset: 0; background: var(--bg-glass); backdrop-filter: var(--blur); display: flex; justify-content: center; align-items: center; z-index: 99999; transition: opacity .3s; }
.global-loader.hidden { opacity: 0; pointer-events: none; }
.spinner { width: 36px; height: 36px; border: 3px solid var(--border); border-top-color: var(--brand); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to{transform:rotate(360deg)} }

/* Responsive */
@media (max-width: 768px) {
    .sidebar { display: none; }
    .sidebar.open { display: flex; position: fixed; inset: 0; width: 100%; z-index: 50; }
    .mobile-header { display: flex !important; }
    .main-content { padding: 1rem; max-height: calc(100vh - 52px); }
    .stats-grid { grid-template-columns: 1fr; }
    .page-header { flex-direction: column; align-items: flex-start; }
}

/* ===== Ambassador Tracking Page ===== */
.trk-search-bar { padding: 0.8rem 1.2rem; }
.trk-search-bar .input-wrapper input { padding-left: 2.7rem; }

.trk-detail-modal { max-width: 900px; width: 95vw; max-height: 90vh; overflow-y: auto; }
.trk-detail-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.8rem; }
.trk-mini-stat { text-align: center; padding: 0.8rem 0.5rem; background: rgba(0,0,0,0.04); border-radius: var(--radius); }
[data-theme="dark"] .trk-mini-stat { background: rgba(255,255,255,0.04); }
.trk-mini-val { display: block; font-size: 1.3rem; font-weight: 700; font-family: var(--font-h); }
.trk-mini-label { display: block; font-size: 0.72rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.04em; margin-top: 0.15rem; }
.trk-val-green { color: var(--green); }

.trk-tabs { display: flex; gap: 0.3rem; background: rgba(0,0,0,0.04); padding: 0.25rem; border-radius: var(--radius); }
[data-theme="dark"] .trk-tabs { background: rgba(255,255,255,0.04); }
.trk-tab { flex: 1; padding: 0.5rem 0.8rem; border: none; background: transparent; border-radius: 0.35rem; color: var(--text-dim); font-weight: 500; cursor: pointer; transition: all 0.2s; font-family: var(--font); font-size: 0.82rem; }
.trk-tab.active { background: var(--bg-glass-hover); color: var(--text); box-shadow: var(--shadow); }
.trk-tab-content { display: none; margin-top: 0.8rem; max-height: 340px; overflow-y: auto; border-radius: var(--radius); border: 1px solid var(--border); }
.trk-tab-content.active { display: block; animation: fadeUp 0.2s ease; }

.trk-row-clickable { cursor: pointer; transition: background 0.15s; }
.trk-row-clickable:hover { background: rgba(2,132,199,0.06) !important; }

.trk-conv-badge { display: inline-block; padding: 0.15rem 0.5rem; border-radius: 999px; font-size: 0.75rem; font-weight: 600; }
.trk-conv-high { background: rgba(16,185,129,0.15); color: var(--green); }
.trk-conv-mid { background: rgba(245,158,11,0.15); color: var(--orange); }
.trk-conv-low { background: rgba(239,68,68,0.15); color: var(--red); }
.trk-conv-zero { background: rgba(100,116,139,0.1); color: var(--text-dim); }

.text-sm { font-size: 0.85rem; }
.text-dim { color: var(--text-dim); }

@media (max-width: 768px) {
    .trk-detail-modal { max-width: 100%; }
    .trk-detail-stats { grid-template-columns: repeat(2, 1fr); }
}

/* ===== Leaderboard Styles ===== */
.leaderboard-tabs-bar {
    display: flex;
    gap: 0.35rem;
    flex-wrap: wrap;
    background: rgba(0,0,0,0.04);
    padding: 0.25rem;
    border-radius: var(--radius);
}
[data-theme="dark"] .leaderboard-tabs-bar {
    background: rgba(255,255,255,0.04);
}
.lb-tab {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 0.85rem;
    border: none;
    background: transparent;
    border-radius: 0.35rem;
    color: var(--text-dim);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    font-family: var(--font);
    font-size: 0.82rem;
}
.lb-tab:hover {
    background: var(--bg-glass-hover);
    color: var(--text);
}
.lb-tab.active {
    background: var(--brand);
    color: #fff;
    box-shadow: 0 2px 8px var(--brand-glow);
}
.rank-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    font-weight: 700;
    font-size: 0.82rem;
}
.rank-1 {
    background: linear-gradient(135deg, rgba(251,191,36,0.25), rgba(245,158,11,0.35));
    border: 1px solid rgba(245,158,11,0.5);
    font-size: 1.1rem;
}
.rank-2 {
    background: linear-gradient(135deg, rgba(209,213,219,0.25), rgba(156,163,175,0.35));
    border: 1px solid rgba(156,163,175,0.5);
    font-size: 1.1rem;
}
.rank-3 {
    background: linear-gradient(135deg, rgba(217,119,6,0.2), rgba(180,83,9,0.3));
    border: 1px solid rgba(217,119,6,0.4);
    font-size: 1.1rem;
}
.rank-default {
    background: rgba(0,0,0,0.04);
    color: var(--text-dim);
    border: 1px solid var(--border);
}
[data-theme="dark"] .rank-default {
    background: rgba(255,255,255,0.04);
}