/* HMCALUMNI - Main Stylesheet */
:root {
    --primary: #60a5fa;
    --primary-dark: #3b82f6;
    --primary-light: #eff6ff;
    --secondary: #64748b;
    --success: #16a34a;
    --danger: #dc2626;
    --warning: #d97706;
    --info: #0891b2;
    --dark: #1e293b;
    --sidebar-bg: #0f172a;
    --sidebar-text: #cbd5e1;
    --sidebar-hover: #1e293b;
    --sidebar-active: #2563eb;
    --sidebar-width: 260px;
    --header-height: 64px;
    --bg: #f1f5f9;
    --card-bg: #ffffff;
    --border: #e2e8f0;
    --text: #334155;
    --text-muted: #94a3b8;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,.1), 0 2px 4px -1px rgba(0,0,0,.06);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
    line-height: 1.6;
}

a { text-decoration: none; color: inherit; }

/* ── Layout ── */
.layout { display: flex; min-height: 100vh; }

/* ── Sidebar ── */
.sidebar {
    width: var(--sidebar-width);
    background: linear-gradient(160deg, #0a1628 0%, #0d2137 30%, #0f3460 65%, #16213e 100%) !important;
    border-right: 1px solid rgba(99,179,237,.15);
    position: fixed;
    top: 0; left: 0;
    height: 100vh;
    overflow-y: auto;
    z-index: 100;
    display: flex;
    flex-direction: column;
    transition: transform .3s ease;
}

.sidebar-brand {
    padding: 20px 20px 16px;
    border-bottom: 1px solid rgba(99,179,237,.2);
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(0,0,0,.2);
}

.sidebar-brand .brand-icon {
    width: 40px; height: 40px;
    background: var(--primary);
    border-radius: var(--radius);
    display: flex; align-items: center; justify-content: center;
    font-size: 20px; color: #fff;
    flex-shrink: 0;
}

.sidebar-brand .brand-text h2 {
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: .3px;
}

.sidebar-brand .brand-text span {
    color: var(--text-muted);
    font-size: 11px;
}

.sidebar-nav { padding: 12px 0; flex: 1; }

.nav-section-title {
    padding: 8px 20px 4px;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: rgba(99,179,237,.6);
}

.nav-item { position: relative; }

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 20px;
    color: rgba(203,213,225,.85);
    font-size: 13.5px;
    font-weight: 500;
    transition: all .2s;
    border-left: 3px solid transparent;
}

.nav-link:hover {
    background: rgba(99,179,237,.12);
    color: #fff;
    border-left-color: #63b3ed;
}

.nav-link.active {
    background: rgba(99,179,237,.18);
    color: #fff;
    border-left-color: #63b3ed;
    font-weight: 600;
}

.nav-link .nav-icon {
    width: 20px;
    text-align: center;
    font-size: 16px;
    flex-shrink: 0;
}

.nav-badge {
    margin-left: auto;
    background: var(--danger);
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 10px;
    min-width: 18px;
    text-align: center;
}

/* ── Main Content ── */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ── Header ── */
.header {
    height: var(--header-height);
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: var(--shadow);
}

.header-left { display: flex; align-items: center; gap: 16px; }

.header-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--dark);
}

.header-right { display: flex; align-items: center; gap: 16px; }

.header-btn {
    width: 36px; height: 36px;
    border: none;
    background: var(--bg);
    border-radius: var(--radius);
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    color: var(--secondary);
    font-size: 16px;
    transition: all .2s;
    position: relative;
}

.header-btn:hover { background: var(--border); color: var(--dark); }

.notif-dot {
    position: absolute;
    top: 6px; right: 6px;
    width: 8px; height: 8px;
    background: var(--danger);
    border-radius: 50%;
    border: 2px solid var(--card-bg);
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    padding: 6px 12px;
    border-radius: var(--radius);
    transition: background .2s;
    position: relative;
}

.user-menu:hover { background: var(--bg); }

.user-avatar {
    width: 36px; height: 36px;
    background: var(--primary);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 14px;
}

.user-info .user-name { font-weight: 600; font-size: 13px; color: var(--dark); }
.user-info .user-role { font-size: 11px; color: var(--text-muted); }

.dropdown-menu {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    min-width: 180px;
    z-index: 200;
    overflow: hidden;
}

.dropdown-menu.show { display: block; }

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    color: var(--text);
    font-size: 13px;
    transition: background .15s;
}

.dropdown-item:hover { background: var(--bg); }
.dropdown-item.danger { color: var(--danger); }
.dropdown-divider { border-top: 1px solid var(--border); margin: 4px 0; }

/* ── Page Content ── */
.page-content { padding: 24px; flex: 1; }

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.page-header h1 {
    font-size: 22px;
    font-weight: 700;
    color: var(--dark);
}

.page-header p {
    color: var(--text-muted);
    font-size: 13px;
    margin-top: 2px;
}

/* ── Cards ── */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-header h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--dark);
}

.card-body { padding: 20px; }

/* ── Stat Cards ── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: var(--shadow);
    transition: transform .2s, box-shadow .2s;
}

.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }

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

.stat-icon.blue   { background: #eff6ff; color: var(--primary); }
.stat-icon.green  { background: #f0fdf4; color: var(--success); }
.stat-icon.orange { background: #fff7ed; color: var(--warning); }
.stat-icon.red    { background: #fef2f2; color: var(--danger); }
.stat-icon.purple { background: #faf5ff; color: #7c3aed; }
.stat-icon.teal   { background: #f0fdfa; color: #0d9488; }

.stat-info .stat-value {
    font-size: 26px;
    font-weight: 700;
    color: var(--dark);
    line-height: 1;
}

.stat-info .stat-label {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ── Tables ── */
.table-wrapper { overflow-x: auto; }

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13.5px;
}

thead th {
    background: var(--bg);
    padding: 10px 14px;
    text-align: left;
    font-weight: 600;
    color: var(--secondary);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .5px;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

tbody td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--border);
    color: var(--text);
    vertical-align: middle;
}

tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: #f8fafc; }

/* ── Badges ── */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: capitalize;
}

.badge-success { background: #dcfce7; color: #15803d; }
.badge-danger  { background: #fee2e2; color: #b91c1c; }
.badge-warning { background: #fef3c7; color: #b45309; }
.badge-info    { background: #e0f2fe; color: #0369a1; }
.badge-secondary { background: #f1f5f9; color: #475569; }

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: none;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all .2s;
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary   { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-success   { background: var(--success); color: #fff; }
.btn-success:hover { background: #15803d; }
.btn-danger    { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #b91c1c; }
.btn-warning   { background: var(--warning); color: #fff; }
.btn-warning:hover { background: #b45309; }
.btn-secondary { background: var(--bg); color: var(--secondary); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--border); }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-icon { padding: 6px; }

/* ── Forms ── */
.form-group { margin-bottom: 16px; }

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 6px;
}

.form-control {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 13.5px;
    color: var(--text);
    background: #fff;
    transition: border-color .2s, box-shadow .2s;
    outline: none;
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,.1);
}

.form-control.is-invalid { border-color: var(--danger); }
.invalid-feedback { color: var(--danger); font-size: 12px; margin-top: 4px; }

select.form-control { cursor: pointer; }
textarea.form-control { resize: vertical; min-height: 100px; }

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
}

/* ── Search Bar ── */
.search-bar {
    display: flex;
    gap: 8px;
    align-items: center;
}

.search-input-wrap {
    position: relative;
    flex: 1;
}

.search-input-wrap .search-icon {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 14px;
}

.search-input-wrap input {
    padding-left: 34px;
}

/* ── Pagination ── */
.pagination {
    display: flex;
    align-items: center;
    gap: 4px;
    justify-content: center;
    padding: 16px 0 4px;
}

.page-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px; height: 34px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 13px;
    color: var(--text);
    transition: all .2s;
}

.page-link:hover { background: var(--primary-light); border-color: var(--primary); color: var(--primary); }
.page-link.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.page-link.disabled { opacity: .4; pointer-events: none; }

/* ── Alerts / Flash ── */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13.5px;
    font-weight: 500;
}

.alert-success { background: #dcfce7; color: #15803d; border: 1px solid #bbf7d0; }
.alert-danger  { background: #fee2e2; color: #b91c1c; border: 1px solid #fecaca; }
.alert-warning { background: #fef3c7; color: #b45309; border: 1px solid #fde68a; }
.alert-info    { background: #e0f2fe; color: #0369a1; border: 1px solid #bae6fd; }

/* ── Footer ── */
.footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border);
    background: var(--card-bg);
    text-align: left;
    font-size: 12px;
    color: var(--text-muted);
}

/* ── Login Page ── */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #1d4ed8 100%);
}

.login-card {
    background: #fff;
    border-radius: 12px;
    padding: 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 20px 60px rgba(0,0,0,.3);
}

.login-logo {
    text-align: center;
    margin-bottom: 28px;
}

.login-logo .logo-icon {
    width: 64px; height: 64px;
    background: var(--primary);
    border-radius: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: #fff;
    margin-bottom: 12px;
}

.login-logo h1 { font-size: 22px; font-weight: 800; color: var(--dark); }
.login-logo p  { color: var(--text-muted); font-size: 13px; }

/* ── Charts ── */
.chart-bar-wrap { padding: 8px 0; }

.chart-bar-item { margin-bottom: 12px; }

.chart-bar-label {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--secondary);
    margin-bottom: 4px;
}

.chart-bar-track {
    height: 8px;
    background: var(--bg);
    border-radius: 4px;
    overflow: hidden;
}

.chart-bar-fill {
    height: 100%;
    border-radius: 4px;
    background: var(--primary);
    transition: width .6s ease;
}

/* ── Misc ── */
.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--text-muted);
}

.empty-state .empty-icon { font-size: 48px; margin-bottom: 12px; }
.empty-state p { font-size: 14px; }

.avatar-sm {
    width: 32px; height: 32px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .main-content { margin-left: 0; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .form-row { grid-template-columns: 1fr; }
}