/* =========================================
   RESET & BASE
========================================= */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-primary-light: #dbeafe;
    --color-success: #16a34a;
    --color-success-light: #dcfce7;
    --color-success-dark: #166534;
    --color-danger: #dc2626;
    --color-danger-light: #fee2e2;
    --color-danger-dark: #991b1b;
    --color-warning: #d97706;
    --color-warning-light: #fef3c7;
    --color-warning-dark: #92400e;
    --color-info: #0891b2;
    --color-info-light: #cffafe;
    --color-bg: #f1f5f9;
    --color-card: #ffffff;
    --color-text: #1e293b;
    --color-text-muted: #64748b;
    --color-border: #e2e8f0;
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --shadow: 0 1px 3px rgba(15, 23, 42, .08), 0 1px 2px rgba(15, 23, 42, .04);
    --shadow-md: 0 6px 16px rgba(15, 23, 42, .08);
    --topbar-h: 64px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

h1 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 6px;
    letter-spacing: -0.01em;
}

h2 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: 8px;
}

p {
    margin-bottom: 10px;
}

a {
    color: var(--color-primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* IKON SVG — wajib agar ikon tidak hitam raksasa */
svg.icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    display: inline-block;
    vertical-align: middle;
}

/* =========================================
   LAYOUT
========================================= */

.container {
    max-width: 1280px;
    margin: 24px auto;
    padding: 0 16px;
}

.card {
    background: var(--color-card);
    padding: 20px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--color-border);
    margin-bottom: 20px;
}

.auth-card {
    max-width: 420px;
    margin: 60px auto;
}

.footer {
    text-align: center;
    padding: 24px;
    color: var(--color-text-muted);
    font-size: 13px;
}

/* =========================================
   TOPBAR & NAVBAR
========================================= */

.topbar {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--color-card);
    padding: 12px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow);
    min-height: var(--topbar-h);
    gap: 12px;
}

.brand {
    font-size: 18px;
    font-weight: 800;
    color: var(--color-primary-dark);
    display: flex;
    align-items: center;
    gap: 8px;
}

.brand svg.icon {
    width: 22px;
    height: 22px;
    color: var(--color-primary);
}

.user-info {
    font-size: 13px;
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    gap: 8px;
    text-align: right;
}

.user-info strong {
    color: var(--color-text);
}

.nav-toggle {
    display: none;
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
    border: none;
    border-radius: var(--radius-sm);
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.navbar {
    background: var(--color-primary);
    background: linear-gradient(180deg, var(--color-primary), var(--color-primary-dark));
    padding: 8px 14px;
    position: sticky;
    top: var(--topbar-h);
    z-index: 49;
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.navbar a {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: rgba(255, 255, 255, 0.88);
    padding: 9px 14px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-size: 13.5px;
    font-weight: 500;
    white-space: nowrap;
    transition: background .15s ease, color .15s ease;
}

.navbar a svg.icon {
    width: 16px;
    height: 16px;
}

.navbar a:hover {
    background: rgba(255, 255, 255, 0.14);
    color: #fff;
    text-decoration: none;
}

.navbar a.active {
    background: rgba(255, 255, 255, 0.22);
    color: #fff;
    font-weight: 700;
}

.navbar a.logout-link {
    margin-left: auto;
    color: #fecaca;
}

.navbar a.logout-link:hover {
    background: rgba(220, 38, 38, 0.25);
    color: #fff;
}

/* =========================================
   ALERT
========================================= */

.alert {
    padding: 12px 15px;
    border-radius: var(--radius-sm);
    margin-bottom: 15px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 14px;
}

.alert svg.icon {
    margin-top: 1px;
}

.alert-success {
    background: var(--color-success-light);
    color: var(--color-success-dark);
    border: 1px solid #86efac;
}

.alert-error {
    background: var(--color-danger-light);
    color: var(--color-danger-dark);
    border: 1px solid #fca5a5;
}

.alert-warning {
    background: var(--color-warning-light);
    color: var(--color-warning-dark);
    border: 1px solid #fcd34d;
}

/* =========================================
   FORM
========================================= */

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 15px;
    margin-bottom: 15px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 13.5px;
    color: var(--color-text);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    background: #fff;
    transition: border-color .15s ease, box-shadow .15s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-group textarea {
    min-height: 70px;
}

.form-inline {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}

.form-inline input,
.form-inline select {
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    min-width: 220px;
    font-size: 14px;
}

.form-inline input[type="number"] {
    min-width: 120px;
}

.note {
    margin-top: 10px;
    font-size: 12.5px;
    color: var(--color-text-muted);
}

/* =========================================
   FILTER BAR
========================================= */

.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    background: #f8fafc;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 12px;
    margin-bottom: 16px;
}

.filter-bar .filter-group {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--color-text-muted);
    font-size: 13px;
}

.filter-bar select,
.filter-bar input[type="search"] {
    padding: 8px 10px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 13.5px;
    background: #fff;
}

.filter-bar input[type="search"] {
    min-width: 200px;
}

.filter-bar svg.icon {
    color: var(--color-primary);
}

/* =========================================
   BUTTON
========================================= */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 16px;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: opacity .15s ease, transform .05s ease;
}

.btn:active {
    transform: translateY(1px);
}

.btn:hover {
    opacity: 0.9;
    text-decoration: none;
}

.btn-primary {
    background-color: var(--color-primary);
    color: #ffffff;
}

.btn-secondary {
    background-color: #e2e8f0;
    color: #111;
}

.btn-warning {
    background-color: var(--color-warning);
    color: #ffffff;
}

.btn-danger {
    background-color: var(--color-danger);
    color: #ffffff;
}

.btn-small {
    padding: 6px 10px;
    font-size: 12px;
}

/* =========================================
   TABLE
========================================= */

.table-wrap {
    overflow-x: auto;
}

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

table th,
table td {
    padding: 11px 10px;
    border-bottom: 1px solid var(--color-border);
    text-align: left;
    vertical-align: middle;
}

table th {
    background: #f8fafc;
    font-weight: 700;
    color: var(--color-text-muted);
    text-transform: uppercase;
    font-size: 11.5px;
    letter-spacing: .03em;
}

table tr:hover {
    background: #f8fafc;
}

.aksi form {
    display: inline-block;
    margin-right: 5px;
    margin-top: 5px;
}

/* =========================================
   BADGE
========================================= */

.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
}

.badge svg.icon {
    width: 13px;
    height: 13px;
}

.badge-success {
    background: var(--color-success-light);
    color: var(--color-success-dark);
}

.badge-danger {
    background: var(--color-danger-light);
    color: var(--color-danger-dark);
}

/* =========================================
   STAT CARD
========================================= */

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
    margin-bottom: 4px;
}

.stat-card {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 14px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.stat-icon {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
}

.stat-card.success .stat-icon { background: var(--color-success-light); color: var(--color-success-dark); }
.stat-card.warning .stat-icon { background: var(--color-warning-light); color: var(--color-warning-dark); }
.stat-card.danger  .stat-icon { background: var(--color-danger-light);  color: var(--color-danger-dark); }
.stat-card.info    .stat-icon { background: var(--color-info-light);    color: var(--color-info); }

.stat-label {
    font-size: 12px;
    color: var(--color-text-muted);
    font-weight: 600;
}

.stat-value {
    font-size: 16px;
    font-weight: 800;
    color: var(--color-text);
}

.stat-value.total {
    color: var(--color-primary-dark);
}

/* =========================================
   RESPONSIVE
========================================= */

@media (max-width: 900px) {
    .navbar {
        display: none;
        flex-direction: column;
        top: var(--topbar-h);
    }

    .navbar.open {
        display: flex;
    }

    .navbar a.logout-link {
        margin-left: 0;
    }

    .nav-toggle {
        display: flex;
    }
}

@media (max-width: 700px) {
    .form-inline input,
    .form-inline select {
        width: 100%;
    }

    .form-inline .btn {
        width: 100%;
        justify-content: center;
    }

    .filter-bar input[type="search"] {
        width: 100%;
    }

    h1 {
        font-size: 19px;
    }
}

/* =========================================
   SIMULASI PINJAMAN
========================================= */

.simulasi-box {
    background: #f8fafc;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 15px;
}

.simulasi-item {
    display: flex;
    justify-content: space-between;
    gap: 15px;
    padding: 6px 0;
    border-bottom: 1px dashed #dbe2ea;
}

.simulasi-item:last-child {
    border-bottom: none;
}

small {
    color: var(--color-text-muted);
}

/* =========================================
   PEMBAYARAN
========================================= */

input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--color-primary);
}

/* =========================================
   CLOSING
========================================= */

.warning-box {
    background: var(--color-warning-light);
    border: 1px solid #fdba74;
}

.warning-box h2 {
    color: var(--color-warning-dark);
}

.card ul {
    margin-left: 20px;
    margin-bottom: 15px;
}

.card ul li {
    margin-bottom: 6px;
}

/* =========================================
   DASHBOARD
========================================= */

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.text-right {
    text-align: right;
}

.row-total td {
    font-weight: 700;
    background: #f8fafc;
    border-top: 2px solid var(--color-border);
}

@media (max-width: 900px) {
    .grid-2 {
        grid-template-columns: 1fr;
    }
}