:root {
    --bg-soft: #eef3fb;
    --panel: #ffffff;
    --primary: #2563eb;
    --primary-strong: #1e40af;
    --accent: #0ea5e9;
    --accent-2: #10b981;
    --text-main: #0f172a;
    --text-sub: #6b7280;
    --line: #d8e3f0;
}

* { box-sizing: border-box; }

body {
    font-family: 'Sarabun', sans-serif;
    color: var(--text-main);
    background: radial-gradient(circle at 10% 20%, rgba(37,99,235,0.08), transparent 25%),
                radial-gradient(circle at 80% 10%, rgba(16,185,129,0.08), transparent 20%),
                radial-gradient(circle at 50% 80%, rgba(14,165,233,0.07), transparent 25%),
                var(--bg-soft);
}

.app-body { min-height: 100vh; margin: 0; position: relative; }

.app-bg-shape { display:none; }

.app-shell {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: grid;
    grid-template-columns: 270px 1fr;
    gap: 0;
}

.sidebar {
    background: linear-gradient(180deg, #ffffff 0%, #f6f9ff 100%);
    border-right: 1px solid var(--line);
    box-shadow: 4px 0 18px rgba(15, 23, 42, 0.05);
    padding-bottom: 12px;
}

.brand h1 { color: var(--primary-strong); }

.sidebar-link {
    border-radius: 12px;
    color: #1e293b;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
    transition: all .18s ease;
    font-weight: 600;
    padding: 10px 12px;
}

.sidebar-link:hover {
    background: #e0ebff;
    color: var(--primary);
    transform: translateX(2px);
}

.sidebar-link.active {
    background: linear-gradient(90deg, #dbeafe 0%, #bfdbfe 100%);
    color: var(--primary-strong);
    box-shadow: inset 0 0 0 1px #9abefc;
}

.main-panel { display: flex; flex-direction: column; }

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 22px;
    border-bottom: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(6px);
    position: sticky;
    top: 0;
    z-index: 9;
}

.page-wrap { padding: 20px; }

.page-transition { animation: pageIn .32s ease; }

@keyframes pageIn {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}

.card {
    border-radius: 16px;
    border: 1px solid #e4e9f3;
    box-shadow: 0 6px 20px rgba(15, 23, 42, 0.06);
}

.card-header {
    border-bottom: 1px solid #eef2ff;
    background: linear-gradient(180deg, #fbfdff 0%, #f6f8ff 100%);
}

.metric-card { background: linear-gradient(145deg, #ffffff 0%, #f8fbff 100%); }
.metric-label { color: var(--text-sub); font-weight: 600; margin-bottom: 8px; }
.metric-value { font-size: 2.1rem; font-weight: 700; line-height: 1; }

.table > :not(caption) > * > * { padding: .78rem .75rem; }
.table-hover tbody tr:hover { background: #f4f7ff; }

.btn {
    border-radius: 10px;
    font-weight: 600;
}
.btn-primary { background: var(--primary); border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-strong); border-color: var(--primary-strong); }
.btn-outline-primary { color: var(--primary-strong); border-color: var(--primary); }
.btn-outline-primary:hover { background: var(--primary); color: #fff; }

.form-control, .form-select {
    border-color: #cdd6e4;
    border-radius: 10px;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.15);
}

.badge { font-weight: 600; padding: 0.4em 0.65em; border-radius: 12px; }

.img-thumb {
    width: 120px;
    height: 90px;
    object-fit: cover;
    border-radius: 12px;
    border: 1px solid var(--line);
    box-shadow: 0 4px 10px rgba(15, 23, 42, 0.1);
}

.login-page { min-height: 100vh; background: #f4f7ff; margin: 0; }
.login-gradient {
    position: fixed; inset: 0;
    background:
        radial-gradient(circle at 15% 20%, rgba(37, 99, 235, 0.18), transparent 32%),
        radial-gradient(circle at 80% 25%, rgba(16, 185, 129, 0.16), transparent 28%),
        radial-gradient(circle at 40% 80%, rgba(14, 165, 233, 0.14), transparent 35%);
}
.login-wrapper { min-height: 100vh; display: grid; place-items: center; padding: 24px; position: relative; z-index: 1; }
.login-card { width: min(560px, 100%); border-radius: 20px; box-shadow: 0 12px 30px rgba(15, 23, 42, 0.12); }
.toast { border-radius: 12px; }

.modal-content { border-radius: 16px; box-shadow: 0 16px 40px rgba(15, 23, 42, 0.14); }

.recent-scroll { max-height: 290px; overflow-y: auto; padding-right: 4px; }
.recent-card { padding: 10px 12px; border: 1px solid #e5eaf3; border-radius: 12px; background: #fbfdff; box-shadow: 0 4px 12px rgba(15,23,42,0.04); }

.status-badge {
    display: inline-block;
    padding: 2px 4px;
    border-radius: 14px;
    font-weight: 700;
    font-size: 12px;
    color: #fff;
    min-width: 72px;
    text-align: center;
    line-height: 1.1;
}
.urgency-high { background: #ef4444; }
.urgency-normal { background: #f59e0b; }
.urgency-low { background: #10b981; }

@media (max-width: 991.98px) {
    .app-shell { grid-template-columns: 1fr; }
    .sidebar { border-right: 0; border-bottom: 1px solid var(--line); }
    .sidebar .nav { flex-direction: row; overflow-x: auto; white-space: nowrap; padding-bottom: 8px; }
    .sidebar-link { margin-right: 8px; margin-bottom: 0; }
    .topbar { flex-direction: column; align-items: flex-start; gap: 10px; position: sticky; top: 0; }
}

/* Extra mobile tweaks */
@media (max-width: 767.98px) {
    .page-wrap { padding: 12px; }
    .stat-card { min-height: 88px; }
    .chart-box canvas { max-height: 260px; }
    .table-responsive { margin-bottom: 8px; -webkit-overflow-scrolling: touch; }
    .modal-dialog { max-width: 95vw; margin: 12px auto; }
    .form-control, .form-select { font-size: 14px; }
    .btn { border-radius: 8px; font-size: 14px; }
}