/* ============================================================
   Online Membership System — Mobile-first stylesheet
   ============================================================ */

:root {
    --c-primary: #1e3a8a;
    --c-primary-dark: #172554;
    --c-primary-light: #3b82f6;
    --c-accent: #f59e0b;
    --c-bg: #f5f7fb;
    --c-card: #ffffff;
    --c-border: #e2e8f0;
    --c-text: #1f2937;
    --c-text-muted: #64748b;
    --c-success: #16a34a;
    --c-danger: #dc2626;
    --c-warning: #d97706;
    --c-info: #0891b2;
    --radius: 10px;
    --radius-sm: 6px;
    --shadow: 0 1px 3px rgba(15, 23, 42, .08), 0 1px 2px rgba(15, 23, 42, .04);
    --shadow-lg: 0 10px 25px -5px rgba(15, 23, 42, .1), 0 8px 10px -6px rgba(15, 23, 42, .04);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--c-text);
    background: var(--c-bg);
    font-size: 15px;
    line-height: 1.5;
    min-height: 100vh;
}

a { color: var(--c-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { margin: 0 0 .6em; color: var(--c-primary-dark); font-weight: 600; }
h1 { font-size: 1.6rem; }
h2 { font-size: 1.3rem; }
h3 { font-size: 1.1rem; }
small { color: var(--c-text-muted); }

/* -------- Topbar / Nav -------- */
.topbar {
    background: var(--c-primary);
    color: #fff;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 60;
}
.topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
    min-height: 56px;
    flex-wrap: wrap;
}
.brand {
    color: #fff;
    font-weight: 700;
    font-size: 1.05rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.brand:hover { text-decoration: none; }
.navtoggle {
    background: transparent;
    border: 0;
    color: #fff;
    font-size: 1.25rem;
    padding: 8px;
    cursor: pointer;
    display: none;
}
.nav {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
}
.nav-link {
    color: #fff;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: .9rem;
    transition: background .15s;
}
.nav-link:hover { background: rgba(255,255,255,.12); text-decoration: none; }
.nav-link i { font-size: .95rem; }
.nav-divider { width: 1px; background: rgba(255,255,255,.25); height: 22px; margin: 0 6px; }
.nav-user { color: rgba(255,255,255,.95); font-size: .88rem; padding: 0 8px; display: inline-flex; align-items: center; gap: 6px; }
.nav-user small { color: rgba(255,255,255,.7); }

.nav-backdrop { display: none; }

@media (max-width: 760px) {
    .navtoggle { display: inline-flex; }
    .nav {
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        width: 280px;
        max-width: 85vw;
        background: var(--c-primary-dark);
        display: flex;
        flex-direction: column;
        align-items: stretch;
        padding: 60px 12px 20px;
        gap: 2px;
        transform: translateX(100%);
        transition: transform .25s ease;
        box-shadow: var(--shadow-lg);
        z-index: 60;
        overflow-y: auto;
    }
    .nav.open { transform: translateX(0); }
    .nav-link { padding: 12px; border-radius: var(--radius-sm); font-size: .95rem; }
    .nav-link i { width: 18px; text-align: center; }
    .nav-divider { display: block; height: 1px; width: auto; background: rgba(255,255,255,.15); margin: 6px 4px; }
    .nav-user { padding: 10px 12px; font-size: .92rem; }

    .nav-backdrop {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(15, 23, 42, .5);
        z-index: 55;
        opacity: 0;
        pointer-events: none;
        transition: opacity .2s ease;
    }
    .nav-backdrop.show {
        opacity: 1;
        pointer-events: auto;
    }

    .navtoggle {
        position: relative;
        z-index: 70;
    }

    body.nav-open { overflow: hidden; }
}

/* -------- Container -------- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 16px 60px;
    min-height: calc(100vh - 150px);
}

/* -------- Card -------- */
.card {
    background: var(--c-card);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 18px;
    margin-bottom: 18px;
}
.card-title {
    margin: 0 0 14px;
    font-size: 1.15rem;
    color: var(--c-primary-dark);
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid var(--c-border);
    padding-bottom: 10px;
}

/* -------- Forms -------- */
.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 12px;
    margin-bottom: 12px;
}
.form-group { display: flex; flex-direction: column; gap: 4px; }
.form-group label { font-size: .85rem; font-weight: 600; color: var(--c-text); }
.form-group .req { color: var(--c-danger); }
.form-control {
    width: 100%;
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
    padding: 9px 11px;
    font-size: .95rem;
    background: #fff;
    color: var(--c-text);
    transition: border-color .15s, box-shadow .15s;
    font-family: inherit;
}
.form-control:focus {
    outline: none;
    border-color: var(--c-primary-light);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, .15);
}
.form-control[readonly] { background: #f1f5f9; color: var(--c-text-muted); }
textarea.form-control { min-height: 80px; resize: vertical; }
select.form-control { background: #fff; }

/* -------- Buttons -------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    padding: 9px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    font-size: .92rem;
    font-weight: 500;
    cursor: pointer;
    font-family: inherit;
    text-decoration: none;
    transition: all .15s;
    background: #fff;
    color: var(--c-text);
    border-color: var(--c-border);
    white-space: nowrap;
}
.btn:hover { text-decoration: none; }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-primary { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }
.btn-primary:hover { background: var(--c-primary-dark); border-color: var(--c-primary-dark); }
.btn-success { background: var(--c-success); color: #fff; border-color: var(--c-success); }
.btn-success:hover { filter: brightness(.92); }
.btn-danger { background: var(--c-danger); color: #fff; border-color: var(--c-danger); }
.btn-danger:hover { filter: brightness(.92); }
.btn-warning { background: var(--c-warning); color: #fff; border-color: var(--c-warning); }
.btn-warning:hover { filter: brightness(.92); }
.btn-info { background: var(--c-info); color: #fff; border-color: var(--c-info); }
.btn-info:hover { filter: brightness(.92); }
.btn-light { background: #f1f5f9; color: var(--c-text); border-color: var(--c-border); }
.btn-light:hover { background: #e2e8f0; }
.btn-sm { padding: 5px 10px; font-size: .82rem; }
.btn-block { width: 100%; }
.btn-bar { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; }

/* -------- Tables -------- */
.table-wrap { overflow-x: auto; margin: 0 -4px; }
.table {
    width: 100%;
    border-collapse: collapse;
    font-size: .9rem;
}
.table th, .table td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid var(--c-border);
    vertical-align: middle;
}
.table th {
    background: #f1f5f9;
    color: var(--c-text);
    font-weight: 600;
    position: sticky;
    top: 0;
    font-size: .82rem;
    text-transform: uppercase;
    letter-spacing: .03em;
}
.table tbody tr:hover { background: #f8fafc; }
.table .actions { display: flex; gap: 4px; flex-wrap: wrap; }

/* Responsive table: stack cells as blocks on mobile (opt-in via .table-responsive) */
@media (max-width: 768px) {
    .table-responsive thead { display: none; }
    .table-responsive,
    .table-responsive tbody,
    .table-responsive tr,
    .table-responsive td { display: block; width: 100%; }
    .table-responsive tr {
        border-bottom: 1px solid var(--c-border);
        padding-bottom: 10px;
    }
    .table-responsive td {
        border-bottom: 0;
        padding: 3px 0;
        word-break: break-word;
    }
        .table-responsive tbody tr td:nth-child(2) {
            font-weight: bold;
        }
        .table-responsive td code {
            display: block;
            background: #becce1;
            color: #172554;
            padding: 5px 10px;
            border-radius: 6px;
            font-size: 12pt;
        }
}

/* -------- Badges -------- */
.badge {
    display: inline-block;
    padding: 3px 9px;
    border-radius: 999px;
    font-size: .73rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .03em;
    line-height: 1.4;
}
.badge-success { background: #dcfce7; color: #14532d; }
.badge-danger  { background: #fee2e2; color: #7f1d1d; }
.badge-warning { background: #fef3c7; color: #78350f; }
.badge-info    { background: #cffafe; color: #155e75; }
.badge-secondary { background: #e2e8f0; color: #1f2937; }

/* -------- Alerts -------- */
.alert {
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    border: 1px solid;
    margin-bottom: 14px;
    font-size: .9rem;
}
.alert-success { background: #f0fdf4; border-color: #bbf7d0; color: #14532d; }
.alert-danger  { background: #fef2f2; border-color: #fecaca; color: #7f1d1d; }
.alert-warning { background: #fffbeb; border-color: #fde68a; color: #78350f; }
.alert-info    { background: #ecfeff; border-color: #a5f3fc; color: #155e75; }

/* -------- Stats / Dashboard -------- */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 14px;
    margin-bottom: 20px;
}
.stat {
    background: var(--c-card);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    padding: 16px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 14px;
}
.stat-icon {
    width: 48px; height: 48px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: #fff;
    font-size: 1.2rem;
    flex-shrink: 0;
}
.stat-body { display: flex; flex-direction: column; }
.stat-label { color: var(--c-text-muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; }
.stat-value { font-size: 1.6rem; font-weight: 700; color: var(--c-primary-dark); }
.stat-primary .stat-icon { background: var(--c-primary); }
.stat-success .stat-icon { background: var(--c-success); }
.stat-warning .stat-icon { background: var(--c-warning); }
.stat-danger  .stat-icon { background: var(--c-danger); }
.stat-info    .stat-icon { background: var(--c-info); }

/* -------- Auth pages (login/register) -------- */
.auth-wrap {
    max-width: 460px;
    margin: 30px auto;
}
.auth-card {
    background: var(--c-card);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--c-border);
}
.auth-card h2 {
    text-align: center;
    margin-bottom: 4px;
    font-size: 1.4rem;
}
.auth-card .lead {
    text-align: center;
    color: var(--c-text-muted);
    margin-bottom: 22px;
    font-size: .9rem;
}

/* -------- Footer -------- */
.footer {
    background: #fff;
    border-top: 1px solid var(--c-border);
    margin-top: 30px;
}
.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px;
    text-align: center;
    color: var(--c-text-muted);
}

/* -------- Toast -------- */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-width: calc(100vw - 40px);
}
.toast {
    background: #1f2937;
    color: #fff;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    font-size: .9rem;
    min-width: 220px;
    max-width: 360px;
    display: flex;
    align-items: center;
    gap: 9px;
    animation: toastIn .2s ease-out;
}
.toast.success { background: var(--c-success); }
.toast.error   { background: var(--c-danger); }
.toast.warning { background: var(--c-warning); }
.toast.info    { background: var(--c-info); }
@keyframes toastIn { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }

/* -------- Utility -------- */
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.gap-1 { gap: 4px; } .gap-2 { gap: 8px; } .gap-3 { gap: 12px; } .gap-4 { gap: 16px; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.mt-1 { margin-top: 4px; } .mt-2 { margin-top: 8px; } .mt-3 { margin-top: 12px; } .mt-4 { margin-top: 16px; }
.mb-1 { margin-bottom: 4px; } .mb-2 { margin-bottom: 8px; } .mb-3 { margin-bottom: 12px; } .mb-4 { margin-bottom: 16px; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--c-text-muted); }
.text-primary { color: var(--c-primary); }
.text-danger { color: var(--c-danger); }
.text-success { color: var(--c-success); }
.text-warning { color: var(--c-warning); }
.hidden { display: none !important; }
.w-100 { width: 100%; }

/* -------- Profile view -------- */
.profile-header {
    display: flex; gap: 18px; align-items: center; flex-wrap: wrap;
    padding: 6px 0 18px;
    border-bottom: 1px solid var(--c-border);
    margin-bottom: 18px;
}
.profile-avatar {
    width: 80px; height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--c-primary), var(--c-primary-light));
    color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    flex-shrink: 0;
}
.profile-meta h3 { margin: 0 0 4px; font-size: 1.3rem; }
.profile-meta .meta-line { color: var(--c-text-muted); font-size: .9rem; }

.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 14px;
}
.detail-item { display: flex; flex-direction: column; }
.detail-label { font-size: .75rem; color: var(--c-text-muted); text-transform: uppercase; letter-spacing: .04em; }
.detail-value { font-size: .98rem; color: var(--c-text); padding: 3px 0; word-break: break-word; }

/* -------- Print -------- */
@media print {
    .topbar, .footer, .btn-bar, .no-print { display: none !important; }
    .container { padding: 0; max-width: 100%; }
    .card { box-shadow: none; border: 1px solid #ddd; }
    body { background: #fff; }
}

/* -------- Search bar -------- */
.search-bar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 8px;
    margin-bottom: 14px;
    align-items: end;
}

/* -------- Pagination -------- */
.pager {
    display: flex; gap: 4px; justify-content: center; margin-top: 14px; flex-wrap: wrap;
}
.pager .btn { min-width: 36px; padding: 5px 9px; font-size: .85rem; }
.pager .active { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }