/* Modern Marine/Slate Design System for Dokumen Sertifikat Kapal */

:root {
    --bg-primary: #f1f5f9;
    --bg-secondary: #ffffff;
    --bg-sidebar: #ffffff;
    --bg-card: #ffffff;
    --border-color: #cbd5e1;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    --primary: #0284c7;
    --primary-hover: #0369a1;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;
    --gray: #64748b;
    
    --font-sans: 'Outfit', 'Inter', system-ui, -apple-system, sans-serif;
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-sans);
    min-height: 100vh;
    display: flex;
    overflow-x: hidden;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

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

/* ================================================
   Sidebar
   ================================================ */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15,23,42,0.45);
    backdrop-filter: blur(2px);
    z-index: 99;
    transition: opacity 0.25s;
}
.sidebar-overlay.active {
    display: block;
}

.sidebar {
    width: 260px;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 100;
    transition: transform 0.3s cubic-bezier(0.4,0,0.2,1);
}

.logo-container {
    padding: 20px 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.logo-icon {
    font-size: 24px;
    color: var(--primary);
}

.logo-img {
    height: 36px;
    width: auto;
    object-fit: contain;
}

.logo-title {
    font-weight: 700;
    font-size: 17px;
    letter-spacing: 0.5px;
    background: linear-gradient(135deg, #38bdf8, #0284c7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    white-space: nowrap;
}

.menu-list {
    list-style: none;
    padding: 20px 16px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex-grow: 1;
    overflow-y: auto;
}

.menu-item a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 16px;
    border-radius: 8px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
    white-space: nowrap;
}

.menu-item a:hover {
    color: var(--text-primary);
    background-color: rgba(0, 0, 0, 0.04);
}

.menu-item.active a {
    color: var(--text-primary);
    background-color: rgba(2, 132, 199, 0.15);
    border-left: 3px solid var(--primary);
    border-radius: 0 8px 8px 0;
    padding-left: 13px;
}

/* Sidebar footer – user info + logout */
.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border-color);
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    padding: 0 4px;
    overflow: hidden;
}
.sidebar-user span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.btn-logout {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 10px 14px;
    background: none;
    border: 1.5px solid var(--border-color);
    border-radius: 8px;
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}
.btn-logout:hover {
    background-color: rgba(239, 68, 68, 0.08);
    border-color: rgba(239, 68, 68, 0.4);
    color: var(--danger);
}

/* ================================================
   Main content wrapper
   ================================================ */
.main-wrapper {
    margin-left: 260px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    min-width: 0;
    transition: margin-left 0.3s cubic-bezier(0.4,0,0.2,1);
}

header {
    background-color: rgba(241, 245, 249, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 14px 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 90;
    gap: 12px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 14px;
    min-width: 0;
}

.header-title h1 {
    font-size: 18px;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.header-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-shrink: 0;
}

.meta-time {
    color: var(--text-secondary);
    font-size: 13px;
    white-space: nowrap;
}

/* Hamburger button */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 38px;
    height: 38px;
    background: none;
    border: 1.5px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    flex-shrink: 0;
    transition: var(--transition);
}
.hamburger:hover {
    background: rgba(0,0,0,0.04);
}
.hamburger span {
    display: block;
    width: 18px;
    height: 2px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* Header logout button */
.header-logout-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: none;
    border: 1.5px solid var(--border-color);
    border-radius: 8px;
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}
.header-logout-btn:hover {
    background-color: rgba(239,68,68,0.08);
    border-color: rgba(239,68,68,0.4);
    color: var(--danger);
}

.content-container {
    padding: 32px;
    flex-grow: 1;
    min-width: 0;
    overflow-x: hidden;
}

/* Cards & Widgets */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-2px);
    border-color: var(--text-muted);
}

.stat-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
}

.stat-card.blue::after { background-color: var(--info); }
.stat-card.green::after { background-color: var(--success); }
.stat-card.yellow::after { background-color: var(--warning); }
.stat-card.red::after { background-color: var(--danger); }
.stat-card.gray::after { background-color: var(--text-muted); }

.stat-title {
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
}

.stat-value {
    font-size: 32px;
    font-weight: 700;
}

/* Tables */
.card-table-container {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 24px;
}

.card-table-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-table-title {
    font-size: 16px;
    font-weight: 600;
}

.table-responsive {
    overflow-x: auto;
    width: 100%;
}

table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

th {
    padding: 14px 24px;
    background-color: rgba(0, 0, 0, 0.015);
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

td {
    padding: 16px 24px;
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
    color: var(--text-primary);
}

tr:last-child td {
    border-bottom: none;
}

tr:hover td {
    background-color: rgba(0, 0, 0, 0.01);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-active { background-color: rgba(16, 185, 129, 0.15); color: #047857; }
.badge-warning { background-color: rgba(245, 158, 11, 0.15); color: #b45309; }
.badge-expired { background-color: rgba(239, 68, 68, 0.15); color: #b91c1c; }
.badge-permanent { background-color: rgba(59, 130, 246, 0.15); color: #1d4ed8; }
.badge-na { background-color: rgba(100, 116, 139, 0.15); color: #475569; }

/* Matrix view specifics */
.matrix-container {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    max-width: 100%;
}

.matrix-scroll-wrapper {
    overflow: auto;
    overflow-x: auto;
    width: 100%;
    max-height: calc(100vh - 200px);
}

.matrix-table {
    border-collapse: separate;
    border-spacing: 0;
    width: max-content;
}

.matrix-table th {
    position: sticky;
    top: 0;
    z-index: 10;
    background-color: var(--bg-card);
    white-space: nowrap;
}

.matrix-table th:first-child,
.matrix-table td:first-child {
    position: sticky;
    left: 0;
    z-index: 20;
    background-color: var(--bg-card);
    border-right: 2px solid var(--border-color);
}

.matrix-table th:first-child {
    z-index: 30;
}

.matrix-cell {
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    min-width: 140px;
    font-size: 12px;
    border-right: 1px solid var(--border-color);
}

.matrix-cell:hover {
    filter: brightness(0.95);
    transform: scale(1.02);
}

.cell-bg-active { background-color: rgba(16, 185, 129, 0.15) !important; color: #047857; }
.cell-bg-warning { background-color: rgba(245, 158, 11, 0.15) !important; color: #b45309; }
.cell-bg-expired { background-color: rgba(239, 68, 68, 0.15) !important; color: #b91c1c; }
.cell-bg-permanent { background-color: rgba(59, 130, 246, 0.15) !important; color: #1d4ed8; }
.cell-bg-na { background-color: rgba(100, 116, 139, 0.08) !important; color: #475569; }

/* Tabbed Layout for List / Detil */
.tabs-header {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 24px;
    gap: 8px;
}

.tab-btn {
    background: none;
    border: none;
    outline: none;
    color: var(--text-secondary);
    padding: 12px 24px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: var(--transition);
}

.tab-btn:hover {
    color: var(--text-primary);
}

.tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Detail Form Layout (Split layout) */
.detail-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 32px;
}

.form-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 32px;
}

.actions-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 32px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    height: fit-content;
}

.form-group {
    margin-bottom: 24px;
}

.form-row {
    display: flex;
    gap: 20px;
}

.form-row .form-group {
    flex: 1;
}

label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-control, select, input[type="text"], input[type="date"] {
    width: 100%;
    padding: 12px 16px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 14px;
    outline: none;
    transition: var(--transition);
}

.form-control:focus, select:focus, input[type="text"]:focus, input[type="date"]:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(2, 132, 199, 0.2);
}

.form-control:disabled {
    background-color: rgba(0, 0, 0, 0.02);
    color: var(--text-muted);
    cursor: not-allowed;
}

/* Radio button selections */
.radio-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 8px;
}

.radio-option {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.radio-option input[type="radio"] {
    accent-color: var(--primary);
    width: 16px;
    height: 16px;
}

/* Dropdown grids for Day, Month, Year date building */
.date-dropdowns {
    display: flex;
    gap: 10px;
    margin-top: 8px;
    padding-left: 26px; /* indent to align under the radio option */
}

.date-dropdowns select {
    flex: 1;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    border: none;
    outline: none;
    transition: var(--transition);
    gap: 8px;
}

.btn-primary {
    background-color: var(--primary);
    color: white;
}
.btn-primary:hover {
    background-color: var(--primary-hover);
}

.btn-secondary {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}
.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.btn-danger {
    background-color: var(--danger);
    color: white;
}
.btn-danger:hover {
    background-color: #dc2626;
}

/* Search bar wrapper */
.filter-bar {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px 24px;
    margin-bottom: 24px;
    display: flex;
    align-items: flex-end;
    gap: 16px;
    flex-wrap: wrap;
}

.filter-group {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
}

.filter-group label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0;
}

.filter-group select {
    height: 42px;
    padding: 8px 12px;
    box-sizing: border-box;
    font-size: 14px;
}

.filter-vessel {
    width: 220px;
}

.filter-cert {
    width: 280px;
}

.filter-status {
    width: 180px;
}

.filter-bar .btn {
    height: 42px;
    padding: 0 20px;
    box-sizing: border-box;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* Paginations */
.pagination-wrapper {
    padding: 20px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid var(--border-color);
}

/* Flash alerts */
.alert {
    padding: 16px 24px;
    border-radius: 8px;
    margin-bottom: 24px;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.alert-success {
    background-color: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: #10b981;
}

/* Helper utility styles */
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.text-info { color: var(--info); }

/* Modal Overlay */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(4px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}
.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}
/* Modal Container */
.modal-container {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    width: 90%;
    max-width: 650px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    transform: translateY(20px);
    transition: var(--transition);
}
.modal-overlay.active .modal-container {
    transform: translateY(0);
}
.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.modal-title {
    font-size: 18px;
    font-weight: 600;
}
.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}
.modal-close:hover {
    color: var(--text-primary);
}
.modal-body {
    padding: 24px;
}
.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

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

/* --- Tablet & smaller (≤ 1024px): sidebar becomes drawer --- */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
        box-shadow: none;
    }
    .sidebar.open {
        transform: translateX(0);
        box-shadow: 4px 0 24px rgba(0,0,0,0.15);
    }

    .main-wrapper {
        margin-left: 0;
    }

    .hamburger {
        display: flex;
    }

    /* Hide sidebar-footer logout on small screens since sidebar is a drawer;
       keep header logout visible */
}

/* --- Mobile (≤ 768px): tighten spacing, collapse form rows --- */
@media (max-width: 768px) {
    .content-container {
        padding: 20px 16px;
    }

    header {
        padding: 12px 16px;
    }

    .header-title h1 {
        font-size: 15px;
    }

    /* Hide clock on mobile to save space */
    .meta-time {
        display: none;
    }

    /* Hide logout text label, show only icon */
    .logout-label {
        display: none;
    }
    .header-logout-btn {
        padding: 8px 10px;
    }

    /* Filter bar: stack vertically */
    .filter-bar {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
        padding: 16px;
    }
    .filter-group {
        width: 100%;
    }
    .filter-vessel,
    .filter-cert,
    .filter-status {
        width: 100%;
    }
    .filter-group select,
    .filter-bar .btn {
        width: 100%;
        height: 44px;
    }

    /* Form rows: stack */
    .form-row {
        flex-direction: column;
        gap: 0;
    }

    /* Detail layout: single column */
    .detail-layout {
        grid-template-columns: 1fr;
    }

    /* Stats grid: 2 columns */
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    /* Tables: allow scroll */
    .table-responsive {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    td, th {
        padding: 12px 14px;
        font-size: 13px;
    }

    /* Pagination: tighten */
    .pagination-wrapper {
        flex-direction: column;
        gap: 12px;
        padding: 16px;
        text-align: center;
    }

    /* Modal: full-width on mobile */
    .modal-container {
        width: 95%;
        max-width: 100%;
    }

    /* Cards */
    .form-card,
    .actions-card {
        padding: 20px 16px;
    }

    /* Matrix scroll hint */
    .matrix-scroll-wrapper {
        max-height: calc(100vh - 160px);
    }
}

/* --- Small mobile (≤ 480px) --- */
@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .card-table-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .btn {
        font-size: 13px;
        padding: 10px 16px;
    }

    .logo-title {
        font-size: 15px;
    }
}

.matrix-attachment-link {
    color: currentColor;
    opacity: 0.6;
    transition: opacity 0.2s, transform 0.2s, background-color 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 3px;
    border-radius: 4px;
    margin-top: 2px;
}
.matrix-attachment-link:hover {
    opacity: 1;
    background-color: rgba(0, 0, 0, 0.08);
    transform: scale(1.15);
}