/* =====================================================
   MAIN STYLESHEET - Umroh Binary System
   Theme: Glassmorphism (Dark & Light Mode)
   Mobile-First Responsive Design
   ===================================================== */

/* ── GOOGLE FONT (preconnect for speed) ─────────────── */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700&display=swap');

/* ── CSS CUSTOM PROPERTIES ───────────────────────────── */
:root {
    /* Brand Colors */
    --color-gold:          #D4AF37;
    --color-gold-dark:     #B8860B;
    --color-gold-light:    #FCE883;
    --color-emerald:       #50C878;
    --color-emerald-dark:  #2E8B57;
    --color-emerald-light: #7FD98F;

    /* ── LIGHT MODE (default) ── */
    --bg-body-from:    #e8f0fe;
    --bg-body-to:      #d0e4f7;

    --glass-bg:        rgba(255, 255, 255, 0.60);
    --glass-border:    rgba(200, 210, 230, 0.70);
    --glass-shadow:    rgba(31, 38, 135, 0.10);

    --text-main:       #1e2d40;
    --text-muted:      #5f7287;
    --text-inverse:    #ffffff;

    --bg-card:         rgba(255, 255, 255, 0.75);
    --bg-card-solid:   #ffffff;
    --bg-input:        rgba(255, 255, 255, 0.85);
    --bg-overlay:      rgba(255,255,255,0.50);

    --table-header:    rgba(212, 175, 55, 0.90);
    --table-row:       rgba(255, 255, 255, 0.70);
    --table-row-hover: rgba(255, 255, 255, 0.95);

    --divider:         rgba(0,0,0,0.08);

    /* choice card */
    --choice-bg:       #ffffff;
    --choice-border:   #dee2e6;
    --choice-count:    #2c3e50;
    --choice-text:     #7f8c8d;

    /* invoice */
    --invoice-bg:      #ffffff;
    --invoice-footer:  #f8f9fa;
    --invoice-border:  #ecf0f1;

    /* accordion */
    --accordion-bg:    #ffffff;
    --accordion-btn:   #f8f9fa;
    --accordion-item-border: #dee2e6;
}

:root[data-theme='dark'],
:root.theme-dark {
    /* ── DARK MODE ── */
    --bg-body-from:    #091a28;
    --bg-body-to:      #18102e;

    --glass-bg:        rgba(16, 24, 40, 0.65);
    --glass-border:    rgba(255, 255, 255, 0.10);
    --glass-shadow:    rgba(0, 0, 0, 0.45);

    --text-main:       #e8f0fe;
    --text-muted:      #8ba0b8;
    --text-inverse:    #ffffff;

    --bg-card:         rgba(20, 32, 52, 0.75);
    --bg-card-solid:   #1a2540;
    --bg-input:        rgba(255, 255, 255, 0.06);
    --bg-overlay:      rgba(0,0,0,0.30);

    --table-header:    rgba(20, 32, 52, 0.90);
    --table-row:       rgba(14, 22, 38, 0.65);
    --table-row-hover: rgba(26, 37, 64, 0.90);

    --divider:         rgba(255,255,255,0.08);

    /* choice card */
    --choice-bg:       rgba(20, 32, 52, 0.85);
    --choice-border:   rgba(255,255,255,0.12);
    --choice-count:    #e8f0fe;
    --choice-text:     #8ba0b8;

    /* invoice */
    --invoice-bg:      rgba(20, 32, 52, 0.90);
    --invoice-footer:  rgba(10, 18, 30, 0.70);
    --invoice-border:  rgba(255,255,255,0.10);

    /* accordion */
    --accordion-bg:    rgba(20, 32, 52, 0.80);
    --accordion-btn:   rgba(30, 46, 74, 0.80);
    --accordion-item-border: rgba(255,255,255,0.08);
}

/* ── GENERAL LAYOUT ──────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-main);
    line-height: 1.6;
    margin: 0;
    min-height: 100vh;
    overflow-x: hidden;
    background: linear-gradient(140deg, var(--bg-body-from) 0%, var(--bg-body-to) 100%);
    background-attachment: fixed;
    transition: background 0.4s ease, color 0.3s ease;
}

/* Decorative background blobs */
body::before, body::after {
    content: '';
    position: fixed;
    border-radius: 50%;
    z-index: -1;
    filter: blur(90px);
    opacity: 0.35;
    animation: drift 22s infinite alternate linear;
    pointer-events: none;
}
body::before {
    top: -8%; left: -8%;
    width: 380px; height: 380px;
    background: var(--color-emerald-light);
}
body::after {
    bottom: -8%; right: -8%;
    width: 520px; height: 520px;
    background: rgba(212, 175, 55, 0.45);
}
@keyframes drift {
    0%   { transform: translate(0, 0) scale(1); }
    100% { transform: translate(40px, -40px) scale(1.05); }
}

/* Headings & Links */
h1, h2, h3, h4, h5, h6 { color: var(--text-main); font-weight: 700; }
a { color: var(--color-gold); text-decoration: none; transition: color 0.25s; }
a:hover { color: var(--color-emerald); }

/* ── LAYOUT UTILITIES ────────────────────────────────── */
.page-content {
    width: 100%;
    max-width: 720px;
    margin: 0 auto;
    padding: 16px 14px 80px;
}
@media (min-width: 768px) {
    .page-content { max-width: 940px; padding: 24px 28px 40px; }
}

.page-wrapper {
    width: 100%;
    max-width: 560px;
    margin: 0 auto;
    padding: 14px 14px 80px;
}
@media (min-width: 768px) {
    .page-wrapper { max-width: 940px; padding: 24px 28px 40px; }
}

/* ── GLASSMORPHISM UTILITIES ─────────────────────────── */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border: 1px solid var(--glass-border);
    box-shadow: 0 8px 32px var(--glass-shadow);
    border-radius: 16px;
}

.card {
    background: var(--bg-card);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid var(--glass-border);
    box-shadow: 0 6px 28px var(--glass-shadow);
    border-radius: 14px;
    color: var(--text-main);
    overflow: hidden;
    margin-bottom: 16px;
    transition: transform 0.28s ease, box-shadow 0.28s ease;
}
.card:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 36px var(--glass-shadow);
    border-color: rgba(212, 175, 55, 0.35);
}

.card-header {
    background: rgba(0, 0, 0, 0.08);
    border-bottom: 1px solid var(--glass-border);
    padding: 14px 20px;
    font-weight: 600;
    color: var(--text-main);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
/* Fix: Bootstrap .card-header.bg-dark / .bg-light */
.card-header.bg-dark {
    background: rgba(0,0,0,0.35) !important;
    color: var(--text-inverse) !important;
    border-bottom-color: var(--glass-border) !important;
}
.card-header.bg-light, .card-header.bg-warning {
    background: rgba(212, 175, 55, 0.15) !important;
    color: var(--text-main) !important;
    border-bottom-color: rgba(212,175,55,0.30) !important;
}

.card-body { padding: 20px; }

/* ── SHARED TOP-BAR (mobile header) ─────────────────── */
.top-bar {
    position: sticky;
    top: 0;
    z-index: 200;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    padding: 10px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 2px 12px var(--glass-shadow);
}
.top-bar .brand-name {
    font-weight: 700;
    font-size: 0.92rem;
    color: var(--text-main);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 180px;
}
.top-bar .burger-btn {
    background: none;
    border: none;
    color: var(--color-gold);
    font-size: 1.65rem;
    line-height: 1;
    padding: 2px 4px;
    cursor: pointer;
    flex-shrink: 0;
}

/* ── OFFCANVAS ──────────────────────────────────────── */
.offcanvas {
    background: var(--glass-bg) !important;
    backdrop-filter: blur(26px) !important;
    -webkit-backdrop-filter: blur(26px) !important;
    border-left: 1px solid var(--glass-border) !important;
    max-width: 280px;
    color: var(--text-main);
}
.offcanvas-start {
    border-right: 1px solid var(--glass-border) !important;
    border-left: none !important;
}
.offcanvas-header {
    border-bottom: 1px solid var(--glass-border);
    padding: 14px 18px;
}
.offcanvas-title { color: var(--text-main); font-weight: 700; }
.offcanvas .nav-link {
    color: var(--text-main) !important;
    padding: 10px 14px !important;
    border-radius: 10px;
    margin-bottom: 3px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: background 0.2s;
}
.offcanvas .nav-link:hover  { background: rgba(212,175,55,0.15); }
.offcanvas .nav-link.active {
    background: rgba(212,175,55,0.22);
    color: var(--color-gold) !important;
    font-weight: 600;
}
.offcanvas .nav-link i { margin-right: 10px; }

/* btn-close in dark mode */
[data-theme='dark'] .btn-close,
.theme-dark .btn-close {
    filter: invert(1);
}

/* ── NAVBAR (desktop pages) ─────────────────────────── */
.navbar {
    background: var(--glass-bg) !important;
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: 0 3px 20px var(--glass-shadow);
    padding: 10px 20px;
}
.navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    color: var(--text-main) !important;
    font-size: 1.1rem;
}
.brand-logo {
    width: 36px; height: 36px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--color-gold);
}
.nav-link {
    color: var(--text-main) !important;
    font-weight: 500;
    margin: 0 3px;
    border-radius: 8px;
    padding: 7px 14px !important;
    transition: all 0.25s;
    font-size: 0.88rem;
}
.nav-link:hover {
    background: rgba(255,255,255,0.12);
    color: var(--color-gold) !important;
}
.nav-link i { margin-right: 6px; opacity: 0.85; }

/* ── ADMIN SIDEBAR ───────────────────────────────────── */
.admin-layout {
    display: flex;
    min-height: calc(100vh - 60px);
}
.sidebar {
    background: var(--glass-bg);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-right: 1px solid var(--glass-border);
    padding: 20px 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}
.sidebar-header {
    text-align: center;
    padding: 0 18px 18px;
    margin-bottom: 16px;
    border-bottom: 1px solid var(--glass-border);
}
.sidebar-header img.brand-logo { width: 64px; height: 64px; margin-bottom: 10px; }
.sidebar-header h4 { font-size: 1rem; color: var(--text-main); margin: 0; }

.nav-menu { flex-grow: 1; padding: 0 12px; }
.menu-item {
    display: flex;
    align-items: center;
    padding: 11px 14px;
    color: var(--text-main);
    text-decoration: none;
    border-radius: 10px;
    margin-bottom: 4px;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.25s;
}
.menu-item i { font-size: 1.1rem; margin-right: 10px; width: 22px; text-align: center; color: var(--color-gold); }
.menu-item:hover {
    background: rgba(212, 175, 55, 0.18);
    color: var(--color-gold);
    transform: translateX(4px);
}
.menu-item.active {
    background: linear-gradient(135deg, rgba(212,175,55,0.35), rgba(212,175,55,0.20));
    color: var(--color-gold) !important;
    font-weight: 700;
    border-left: 3px solid var(--color-gold);
    padding-left: 11px; /* compensate for border */
    box-shadow: 0 2px 10px rgba(212,175,55,0.18);
}
.menu-item.active i { color: var(--color-gold); }
.sidebar-footer {
    padding: 16px 14px 0;
    border-top: 1px solid var(--glass-border);
}
.logout-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 11px;
    background: rgba(220, 53, 69, 0.12);
    color: #ff6b6b;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.25s;
    border: 1px solid rgba(220, 53, 69, 0.25);
    font-size: 0.9rem;
}
.logout-btn:hover { background: rgba(220, 53, 69, 0.75); color: white; }

.main-content { flex-grow: 1; padding: 24px; overflow-y: auto; }

/* ── PAGE CONTENT WRAPPER ────────────────────────────── */
.page-content {
    padding: 16px 16px 90px;
    max-width: 560px;
    margin: 0 auto;
}

/* ── BUTTONS ─────────────────────────────────────────── */
.btn {
    font-weight: 600;
    border-radius: 9px;
    padding: 9px 18px;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    transition: all 0.25s;
    font-size: 0.9rem;
}
.btn-primary {
    background: linear-gradient(135deg, var(--color-emerald), var(--color-emerald-dark));
    border: none;
    color: white;
    box-shadow: 0 4px 14px rgba(80, 200, 120, 0.28);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(80, 200, 120, 0.45);
    background: linear-gradient(135deg, var(--color-emerald-light), var(--color-emerald));
    color: white;
}
.btn-gold {
    background: linear-gradient(135deg, var(--color-gold), var(--color-gold-dark));
    border: none;
    color: #111;
    box-shadow: 0 4px 14px rgba(212, 175, 55, 0.28);
}
.btn-gold:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(212, 175, 55, 0.45);
    background: linear-gradient(135deg, var(--color-gold-light), var(--color-gold));
    color: #000;
}

/* ── FORMS & INPUTS ──────────────────────────────────── */
.form-control, .form-select {
    background: var(--bg-input) !important;
    border: 1px solid var(--glass-border) !important;
    border-radius: 9px;
    padding: 10px 14px;
    color: var(--text-main) !important;
    transition: border-color 0.25s, box-shadow 0.25s;
    font-size: 0.9rem;
}
.form-control:focus, .form-select:focus {
    background: var(--bg-input) !important;
    border-color: var(--color-gold) !important;
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.18) !important;
    color: var(--text-main) !important;
}
.form-control::placeholder { color: var(--text-muted); opacity: 0.8; }
.form-label {
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 6px;
    font-size: 0.88rem;
}
.form-text { color: var(--text-muted); font-size: 0.8rem; }

/* Fix: select dropdown (option) readability in dark mode */
.form-select { color: var(--text-main) !important; }
.form-select option {
    color: var(--text-main) !important;
    background: var(--bg-card-solid) !important;
}
:root[data-theme='dark'] .form-select option,
.theme-dark .form-select option {
    color: var(--text-main) !important;
    background: #1a2540 !important;
}

/* ── TABLES ──────────────────────────────────────────── */
.table-responsive { border-radius: 12px; overflow: hidden; }
.table { margin-bottom: 0; color: var(--text-main); width: 100%; }
.table thead th {
    background: var(--table-header);
    color: var(--text-inverse);
    border: none;
    padding: 10px 14px;
    font-weight: 600;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
}
.table tbody tr {
    background: var(--table-row);
    border-bottom: 1px solid var(--glass-border);
    transition: background 0.18s;
}
.table tbody tr:hover  { background: var(--table-row-hover); }
.table tbody td {
    padding: 10px 14px;
    vertical-align: middle;
    border: none;
    font-size: 0.85rem;
    color: var(--text-main);
}

/* ── STAT CARDS ──────────────────────────────────────── */
.stat-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 14px;
    display: flex;
    align-items: center;
    gap: 14px;
    box-shadow: 0 4px 18px var(--glass-shadow);
    transition: transform 0.25s;
}
.stat-card:hover { transform: translateY(-2px); border-color: rgba(212,175,55,0.35); }
.stat-icon {
    width: 44px; height: 44px;
    border-radius: 11px;
    background: linear-gradient(135deg, rgba(212,175,55,0.22), rgba(212,175,55,0.06));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--color-gold);
    flex-shrink: 0;
}
.stat-content { flex-grow: 1; }
.stat-label { font-size: 0.78rem; color: var(--text-muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.8px; margin-bottom: 3px; }
.stat-value { font-size: 1.7rem; font-weight: 700; color: var(--text-main); line-height: 1; }

/* ── DASHBOARD SPECIFIC ──────────────────────────────── */
.dash-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 13px 14px;
    margin-bottom: 10px;
    box-shadow: 0 2px 10px var(--glass-shadow);
}
.payment-banner {
    border-radius: 11px;
    padding: 10px 14px;
    margin-bottom: 12px;
    font-size: 0.83rem;
    display: flex;
    align-items: center;
    gap: 10px;
}
.welcome-card {
    background: linear-gradient(135deg, #D4AF37 0%, #f0c855 100%);
    border-radius: 14px;
    padding: 16px;
    margin-bottom: 12px;
    color: #2c1810;
}
.welcome-card .ref-pill {
    background: rgba(255,255,255,0.55);
    border-radius: 8px;
    padding: 6px 10px;
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 10px;
    flex-wrap: wrap;
}
.leg-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 12px 14px;
    margin-bottom: 10px;
}
.leg-card .leg-title { font-size: 0.76rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); margin-bottom: 5px; }
.leg-card .leg-num { font-size: 1.4rem; font-weight: 700; color: var(--text-main); line-height: 1; }
.leg-card .progress { height: 6px; border-radius: 99px; margin-top: 7px; background: rgba(0,0,0,0.08); }
[data-theme='dark'] .leg-card .progress,
.theme-dark .leg-card .progress { background: rgba(255,255,255,0.08); }

.quick-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 12px; }
.quick-btn {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 14px 10px;
    text-align: center;
    text-decoration: none;
    color: var(--text-main);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    transition: transform 0.2s, border-color 0.2s;
}
.quick-btn i { font-size: 1.35rem; color: var(--color-gold); }
.quick-btn:hover { transform: translateY(-2px); border-color: var(--color-gold); color: var(--text-main); }
.quick-btn.gold { background: linear-gradient(135deg, #D4AF37, #f0c855); color: #2c1810; border-color: transparent; }
.quick-btn.gold i { color: #2c1810; }

.section-label {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--text-muted);
    margin-bottom: 7px;
    margin-top: 18px;
}

/* ── BADGES & ALERTS ─────────────────────────────────── */
.badge {
    padding: 5px 11px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.75rem;
    letter-spacing: 0.4px;
}
.bg-success { background: rgba(80, 200, 120, 0.20) !important; color: #50C878 !important; border: 1px solid rgba(80,200,120,0.30); }
.bg-warning { background: rgba(255, 193, 7,  0.20) !important; color: #d4a000 !important; border: 1px solid rgba(255,193,7,0.30); }
.bg-danger  { background: rgba(220, 53,  69, 0.20) !important; color: #ff6b6b !important; border: 1px solid rgba(220,53,69,0.30); }
.bg-info    { background: rgba(23,  162, 184,0.20) !important; color: #4dc3ff !important; border: 1px solid rgba(23,162,184,0.30); }
.bg-secondary { background: rgba(100,120,150,0.20) !important; color: var(--text-muted) !important; border: 1px solid var(--glass-border); }
.badge-gold { background: rgba(212,175,55,0.20) !important; color: var(--color-gold) !important; border: 1px solid rgba(212,175,55,0.30); }

.alert {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-left: 4px solid;
    color: var(--text-main);
    border-radius: 11px;
    font-size: 0.88rem;
}
.alert-success { border-left-color: var(--color-emerald); }
.alert-danger  { border-left-color: #ff6b6b; }
.alert-warning { border-left-color: var(--color-gold); }
.alert-info    { border-left-color: #4dc3ff; }

/* ── AUTH ────────────────────────────────────────────── */
.auth-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}
.auth-card {
    background: var(--glass-bg);
    backdrop-filter: blur(22px);
    -webkit-backdrop-filter: blur(22px);
    border: 1px solid var(--glass-border);
    box-shadow: 0 16px 40px rgba(0,0,0,0.20);
    border-radius: 22px;
    padding: 36px 32px;
    width: 100%;
    max-width: 440px;
    text-align: center;
}
.auth-logo {
    width: 90px; height: 90px;
    border-radius: 50%;
    border: 3px solid var(--color-gold);
    margin-bottom: 18px;
    object-fit: cover;
    box-shadow: 0 8px 20px rgba(212,175,55,0.28);
}
.auth-title { color: var(--color-gold); font-size: 1.9rem; font-weight: 700; margin-bottom: 4px; }
.auth-subtitle { color: var(--text-muted); font-size: 0.93rem; margin-bottom: 28px; }

/* ── REWARD PAGE CARDS ───────────────────────────────── */
.reward-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: 14px;
    overflow: hidden;
    transition: transform 0.22s, box-shadow 0.22s;
    margin-bottom: 14px;
}
.reward-card:hover { transform: translateY(-3px); box-shadow: 0 10px 32px var(--glass-shadow); }
.reward-card .card-top {
    padding: 20px;
    text-align: center;
}
.reward-card.eligible .card-top {
    background: linear-gradient(135deg, #27ae60, #2ecc71);
    color: white;
}
.reward-card.not-eligible .card-top {
    background: linear-gradient(135deg, rgba(100,120,150,0.45), rgba(80,100,130,0.35));
    color: var(--text-main);
}
.reward-card .card-top h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 4px; }
.reward-card .card-top .icon { font-size: 2.2rem; margin-bottom: 8px; }
.reward-card .card-bottom { padding: 16px 18px; }

.progress-row { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.progress-item { flex: 1; text-align: center; }
.progress-item label { font-size: 0.78rem; color: var(--text-muted); display: block; margin-bottom: 4px; }
.progress-item .count { font-size: 1.1rem; font-weight: 700; color: var(--choice-count); }

/* Choice cards (reward selection) */
.choice-card {
    border: 2px solid var(--choice-border);
    border-radius: 12px;
    padding: 18px 14px;
    text-align: center;
    cursor: pointer;
    transition: all 0.25s;
    background: var(--choice-bg);
    color: var(--text-main);
}
.choice-card:hover { border-color: #3498db; box-shadow: 0 4px 14px rgba(52,152,219,0.20); }
.choice-card.selected { border-color: #27ae60; background: rgba(39,174,96,0.10); box-shadow: 0 4px 14px rgba(39,174,96,0.20); }
.choice-card .choice-icon { font-size: 2.4rem; margin-bottom: 10px; }
.choice-card h4 { font-weight: 700; margin-bottom: 6px; font-size: 1rem; color: var(--text-main); }
.choice-card p { color: var(--choice-text); font-size: 0.82rem; margin: 0; }
.choice-radio { display: none; }

/* Invoice */
.invoice-preview { display: none; background: var(--invoice-bg); border-radius: 12px; box-shadow: 0 4px 20px rgba(0,0,0,0.12); overflow: hidden; margin-top: 16px; border: 1px solid var(--invoice-border); }
.invoice-preview.active { display: block; }
.invoice-header-section { background: linear-gradient(135deg, #1a1a2e, #0f3460); color: white; padding: 24px; }
.invoice-body-section { padding: 20px; color: var(--text-main); }
.invoice-footer-section { background: var(--invoice-footer); padding: 16px 20px; text-align: center; font-size: 0.78rem; color: var(--text-muted); border-top: 1px solid var(--invoice-border); }

.pdf-list { margin-bottom: 18px; border: 1px solid var(--invoice-border); border-radius: 8px; overflow: hidden; }
.pdf-list-header { background: #1a1a2e; color: #fff; display: flex; padding: 11px 14px; font-size: 0.8rem; text-transform: uppercase; font-weight: 700; }
.pdf-list-row { display: flex; padding: 13px 14px; border-bottom: 1px solid var(--invoice-border); background: var(--invoice-bg); font-size: 0.88rem; color: var(--text-main); }
.pdf-list-row:last-child { border-bottom: none; }
.pdf-col-desc { flex: 1; }
.pdf-col-val { text-align: right; font-weight: 600; }

/* WA / Download buttons */
.btn-whatsapp { background: #25D366; color: white; border: none; padding: 11px 24px; border-radius: 9px; font-weight: 600; font-size: 0.95rem; transition: all 0.22s; display: inline-flex; align-items: center; gap: 7px; }
.btn-whatsapp:hover { background: #128C7E; color: white; transform: translateY(-2px); }
.btn-download-invoice { background: linear-gradient(135deg, #e74c3c, #c0392b); color: white; border: none; padding: 10px 20px; border-radius: 9px; font-weight: 600; display: inline-flex; align-items: center; gap: 7px; }
.btn-download-invoice:hover { color: white; transform: translateY(-2px); }

.success-banner { background: linear-gradient(135deg, #27ae60, #2ecc71); color: white; border-radius: 12px; padding: 24px; text-align: center; margin-bottom: 16px; }
.success-banner h3 { font-weight: 700; margin-bottom: 8px; }

/* ── ACCORDION (FAQ) ─────────────────────────────────── */
.accordion-item {
    background: var(--accordion-bg) !important;
    border: 1px solid var(--accordion-item-border) !important;
    color: var(--text-main);
}
.accordion-button {
    background: var(--accordion-btn) !important;
    color: var(--text-main) !important;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: none !important;
}
.accordion-button:not(.collapsed) {
    background: rgba(212,175,55,0.15) !important;
    color: var(--color-gold) !important;
}
.accordion-button::after { filter: none; }
[data-theme='dark'] .accordion-button::after,
.theme-dark .accordion-button::after { filter: invert(1); }
.accordion-body { background: var(--accordion-bg) !important; color: var(--text-main); font-size: 0.88rem; }

/* ── JARINGAN / BINARY TREE ──────────────────────────── */
.bt-node .member-card {
    background: var(--bg-card);
    backdrop-filter: blur(8px);
    border: 2px solid var(--glass-border);
    color: var(--text-main);
}
.bt-node .member-card.root { border-color: var(--color-gold); box-shadow: 0 0 18px rgba(212,175,55,0.28); }
.member-username { color: var(--text-main); }
.stat-box-split { background: var(--glass-bg); backdrop-filter: blur(10px); border: 1px solid var(--glass-border); }

/* ── FORM CARD (register, upload page) ───────────────── */
.form-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: 14px;
    padding: 24px;
    margin-bottom: 16px;
    box-shadow: 0 4px 22px var(--glass-shadow);
}

/* ── RESPONSIVE ──────────────────────────────────────── */
@media (max-width: 767px) {
    .main-content { padding: 14px 10px; }
    .card-body { padding: 16px; }
    
    /* stat card compact on mobile */
    .stat-value { font-size: 1.45rem; }
    .stat-card  { padding: 12px; gap: 12px; }
    .stat-icon  { width: 40px; height: 40px; font-size: 18px; }

    /* auth card */ 
    .auth-card  { padding: 28px 20px; }
    .auth-title { font-size: 1.55rem; }

    /* reward choice cards full width on mobile */
    .choice-card { padding: 14px 10px; }
    .choice-card .choice-icon { font-size: 1.9rem; }

    /* page content max width relaxed */
    .page-content { padding: 14px 14px 80px; max-width: 100%; }

    /* binary tree scroll */
    .bt-wrapper { overflow-x: auto; -webkit-overflow-scrolling: touch; padding-bottom: 18px; }

    /* invoice on mobile */
    .invoice-header-section { padding: 16px; }
    .invoice-body-section   { padding: 14px; }
    .invoice-body-section .row .col-md-6 { margin-bottom: 10px; }
    .btn-action-row { flex-direction: column; gap: 10px; align-items: stretch; }
    .btn-action-row .btn-download-invoice,
    .btn-action-row .btn-whatsapp { width: 100%; justify-content: center; }

    /* form card */
    .form-card { padding: 18px; }
}

@media (min-width: 768px) {
    .page-content { max-width: 680px; }
}