/* ============================================================
   SIGA - Estilos principales
   ============================================================ */

:root {
    --primary: #4682B4;
    --primary-dark: #36648B;
    --primary-light: #5a9fd4;
    --sidebar-bg: #2c3e50;
    --sidebar-hover: #34495e;
    --sidebar-active: #4682B4;
    --bg-body: #f0f2f5;
    --bg-card: #ffffff;
    --text-main: #333333;
    --text-muted: #777777;
    --text-white: #ffffff;
    --sidebar-text: #ffffff;
    --sidebar-text-muted: rgba(255,255,255,0.7);
    --btn-text: #ffffff;
    --border: #dee2e6;
    --success: #28a745;
    --danger: #dc3545;
    --warning: #ffc107;
    --info: #17a2b8;
    --table-stripe: #f8f9fa;
    --shadow: 0 2px 8px rgba(0,0,0,0.08);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg-body);
    color: var(--text-main);
    min-height: 100vh;
}

/* ---- LOGIN ---- */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: var(--primary);
    background-image:
        radial-gradient(circle at 50% 45%, rgba(255,255,255,0.18) 0%, rgba(255,255,255,0.05) 28%, transparent 55%),
        radial-gradient(circle at 12% 88%, rgba(255,255,255,0.09) 0%, transparent 42%),
        radial-gradient(circle at 88% 12%, rgba(255,255,255,0.09) 0%, transparent 42%),
        linear-gradient(160deg, var(--primary) 0%, #152238 55%, var(--primary-dark) 100%);
    position: relative;
    overflow: hidden;
}
.login-container::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('../images/arc-logo.svg') center / 300px no-repeat;
    opacity: 0.10;
    pointer-events: none;
    z-index: 0;
}
.login-box {
    position: relative;
    z-index: 1;
    background: var(--bg-card);
    padding: 40px 36px;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
    width: 400px;
    max-width: 95%;
}

.login-box h1 {
    text-align: center;
    color: var(--primary);
    margin-bottom: 8px;
    font-size: 24px;
}

.login-box .subtitle {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 28px;
    font-size: 13px;
}

.login-box .form-group { margin-bottom: 18px; }
.login-box label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 13px;
    color: var(--text-main);
}

.login-box input[type="text"],
.login-box input[type="password"] {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    transition: border 0.2s;
}

.login-box input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(70,130,180,0.15);
}

.btn {
    display: inline-block;
    padding: 10px 22px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
    text-align: center;
}

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

.btn-block { width: 100%; }

.btn-sm {
    padding: 5px 14px;
    font-size: 12px;
}

.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #218838; }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #c82333; }

.btn-info { background: var(--info); color: #fff; }
.btn-info:hover { background: #138496; }

.btn-warning { background: var(--warning); color: #333; }
.btn-warning:hover { background: #e0a800; }

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-main);
}
.btn-outline:hover { background: var(--bg-body); }

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

/* ---- SIDEBAR ---- */
.sidebar {
    width: var(--sidebar-width, 240px);
    background: var(--sidebar-bg);
    color: var(--sidebar-text);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    overflow-y: auto;
}

.sidebar-resize-handle {
    position: fixed;
    top: 0;
    bottom: 0;
    width: 8px;
    cursor: col-resize;
    background: rgba(0,0,0,0.1);
    z-index: 150;
    transition: background 0.2s;
    left: calc(var(--sidebar-width, 240px) - 4px);
}

.sidebar-resize-handle:hover,
.sidebar-resize-handle.active {
    background: rgba(70,130,180,0.6);
}

.sidebar-brand {
    padding: 16px 20px;
    text-align: left;
    position: relative;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    min-height: 56px;
}

.sidebar-brand h2 {
    font-size: 18px;
    margin: 8px 0 0 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sidebar-brand img {
    display: block;
    margin: 0 auto 4px;
    max-width: 140px;
    max-height: 60px;
}

.brand-initial {
    display: none;
}

.sidebar-brand small {
    font-size: 11px;
    opacity: 0.7;
}

.sidebar-nav { list-style: none; padding: 10px 0; flex: 1; }

.sidebar-footer {
    padding: 10px 16px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.sidebar-footer small {
    font-size: 10px;
    opacity: 0.6;
    line-height: 1.3;
    display: block;
}

.sidebar-nav li a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 20px;
    color: var(--sidebar-text);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.sidebar-nav li a:hover {
    background: var(--sidebar-hover);
    color: var(--sidebar-text);
}

.sidebar-nav li a.active {
    background: var(--sidebar-active);
    color: var(--sidebar-text);
    border-left-color: var(--sidebar-text);
}

.sidebar-nav li a .icon {
    font-size: 18px;
    width: 24px;
    text-align: center;
    filter: grayscale(1);
}

.sidebar-footer {
    padding: 16px 20px;
    font-size: 12px;
}

.sidebar-footer a {
    color: var(--sidebar-text);
    text-decoration: none;
    display: block;
    padding: 4px 0;
    opacity: 0.7;
}

.sidebar-footer a:hover { opacity: 1; }

/* ---- SIDEBAR TOGGLE ---- */
.sidebar-toggle-btn {
    background: var(--sidebar-text-muted);
    border: none;
    color: var(--sidebar-text);
    font-size: 14px;
    width: 24px;
    height: 24px;
    border-radius: 4px;
    cursor: pointer;
    transition: transform 0.3s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    right: 10px;
    top: 22px;
}

.sidebar-toggle-btn:hover {
    background: var(--sidebar-text);
    opacity: 0.25;
}

.sidebar-pin-btn {
    background: transparent;
    border: none;
    color: var(--sidebar-text);
    font-size: 12px;
    width: 22px;
    height: 22px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    right: 38px;
    top: 23px;
    opacity: 0.4;
    transition: opacity 0.2s;
    padding: 0;
    line-height: 1;
}

.sidebar-pin-btn:hover {
    opacity: 0.8;
}

.sidebar-pin-btn.pinned {
    opacity: 1;
}

.sidebar-pin-btn img {
    width: 15px;
    height: 15px;
    filter: grayscale(1) brightness(1.4);
    transition: filter 0.2s;
}

.sidebar-pin-btn.pinned img {
    filter: grayscale(1) brightness(1.8);
}

.sidebar.collapsed .sidebar-pin-btn {
    display: none;
}

/* ---- MAIN CONTENT ---- */
.main-content {
    margin-left: var(--sidebar-width, 240px);
    flex: 1;
    min-height: 100vh;
    transition: margin-left 0.3s;
}

.main-content.sidebar-collapsed {
    margin-left: 56px;
}

/* ---- NAV SUB-MENUS ---- */
.sidebar-nav li.nav-group .nav-sub {
    list-style: none;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
    background: rgba(0,0,0,0.12);
}

.sidebar-nav li.nav-group.open .nav-sub {
    max-height: 200px;
}

.sidebar-nav li.nav-group .nav-sub li a {
    padding: 6px 20px 6px 56px;
    font-size: 13px;
    border-left: none;
    gap: 8px;
}

.sidebar-nav li.nav-group .nav-sub li a .icon {
    font-size: 10px;
    width: auto;
}

.sidebar-nav li.nav-group .nav-sub li a.active {
    background: rgba(255,255,255,0.08);
    color: var(--sidebar-text);
}

.arrow-right {
    margin-left: auto;
    font-size: 11px;
    opacity: 0.5;
    transition: transform 0.2s;
}

.nav-group.active-parent .arrow-right,
.nav-group.open .arrow-right {
    transform: rotate(90deg);
}

/* ---- SIDEBAR COLLAPSED ---- */
.sidebar.collapsed {
    width: 56px;
    --sidebar-width: 56px;
}

.sidebar.collapsed .sidebar-brand {
    padding: 16px 0;
    position: relative;
}

.sidebar.collapsed .sidebar-toggle-btn {
    position: static;
    transform: rotate(180deg);
    margin: 0 auto;
}

.sidebar.collapsed .sidebar-nav li a {
    justify-content: center;
    padding: 12px 0;
    border-left: none;
}

.sidebar.collapsed .sidebar-nav li a .nav-text {
    display: none;
}

.sidebar.collapsed .sidebar-nav li a .arrow-right {
    display: none;
}

.sidebar.collapsed .sidebar-nav li a .icon {
    font-size: 20px;
    margin: 0;
}

.sidebar.collapsed .sidebar-nav li.nav-group .nav-sub {
    max-height: 0 !important;
    overflow: hidden;
    display: none;
}

.sidebar.collapsed .sidebar-footer {
    display: none;
}

.topbar {
    background: var(--bg-card);
    padding: 14px 28px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow);
}

.topbar h3 {
    font-size: 16px;
    font-weight: 600;
}

.topbar .user-info {
    font-size: 13px;
    color: var(--text-muted);
}

.content {
    padding: 24px 28px;
}

/* ---- CARDS ---- */
.card {
    background: var(--bg-card);
    border-radius: 8px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.card-header {
    padding: 14px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h4 {
    font-size: 15px;
    font-weight: 600;
}

.card-body {
    padding: 20px;
}

/* ---- TABLAS ---- */
.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.table thead th {
    background: var(--primary);
    color: var(--btn-text);
    padding: 10px 14px;
    text-align: left;
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    white-space: nowrap;
}

.table tbody tr:nth-child(even) {
    background: var(--table-stripe);
}

.table tbody tr:hover {
    background: #e8f0fe;
}

.table tbody td {
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

.table .actions {
    white-space: nowrap;
}

.table .actions .btn {
    margin-right: 4px;
}

/* ---- FORMS ---- */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
    font-size: 13px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 13px;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(70,130,180,0.12);
}

/* ---- ALERTS ---- */
.alert {
    padding: 12px 18px;
    border-radius: 6px;
    margin-bottom: 16px;
    font-size: 13px;
    font-weight: 500;
}

.alert-success { background: #d4edda; color: #155724; border: 1px solid #c3e6cb; }
.alert-danger { background: #f8d7da; color: #721c24; border: 1px solid #f5c6cb; }
.alert-warning { background: #fff3cd; color: #856404; border: 1px solid #ffeeba; }
.alert-info { background: #d1ecf1; color: #0c5460; border: 1px solid #bee5eb; }

/* ---- BADGES ---- */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
}

.badge-success { background: #d4edda; color: #155724; }
.badge-danger { background: #f8d7da; color: #721c24; }
.badge-primary { background: #cce5ff; color: #004085; }

/* ---- MODAL ---- */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.modal-overlay.active { display: flex; }

.modal {
    background: var(--bg-card);
    border-radius: 10px;
    width: 500px;
    max-width: 95%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 12px 40px rgba(0,0,0,0.25);
}

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

.modal-header h4 { font-size: 16px; }

.modal-close {
    background: none;
    border: none;
    font-size: 22px;
    cursor: pointer;
    color: var(--text-muted);
}

.modal-body { padding: 20px; }
.modal-footer {
    padding: 14px 20px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* ---- CONFIRM MODAL ---- */
.confirm-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 9999;
    justify-content: center;
    align-items: center;
}
.confirm-overlay.active { display: flex; }
.confirm-box {
    background: var(--bg-card);
    border-radius: 10px;
    width: 400px;
    max-width: 95%;
    box-shadow: 0 12px 40px rgba(0,0,0,0.3);
    text-align: center;
}
.confirm-box .confirm-icon {
    font-size: 40px;
    margin-top: 20px;
    color: #e74c3c;
}
.confirm-box .confirm-msg {
    padding: 16px 24px 8px;
    font-size: 15px;
    font-weight: 600;
}
.confirm-box .confirm-actions {
    padding: 12px 24px 20px;
    display: flex;
    justify-content: center;
    gap: 12px;
}
.confirm-box .confirm-actions button {
    padding: 8px 28px;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    font-size: 14px;
    border: none;
}
.confirm-btn-cancel {
    background: var(--bg-body);
    color: var(--text);
    border: 1px solid var(--border) !important;
}
.confirm-btn-ok {
    background: #e74c3c;
    color: #fff;
}

/* ---- PERMISOS CHECKBOX GRID ---- */
.permisos-grid {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.permisos-grid th {
    background: var(--bg-body);
    padding: 8px 12px;
    text-align: center;
    font-weight: 600;
    border: 1px solid var(--border);
}

.permisos-grid td {
    padding: 8px 12px;
    text-align: center;
    border: 1px solid var(--border);
}

.permisos-grid td:first-child {
    text-align: left;
    font-weight: 600;
}

/* ---- SEARCH BAR ---- */
.search-bar {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
}

.search-bar input {
    flex: 1;
    padding: 9px 14px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 13px;
}

.search-bar input:focus {
    outline: none;
    border-color: var(--primary);
}

/* ---- PAGINATION ---- */
.pagination {
    display: flex;
    justify-content: center;
    gap: 4px;
    margin-top: 16px;
}

.pagination a, .pagination span {
    padding: 6px 12px;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 13px;
    text-decoration: none;
    color: var(--text-main);
}

.pagination a:hover { background: var(--bg-body); }
.pagination .active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ---- UTILS ---- */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mb-2 { margin-bottom: 16px; }
.gap-2 { gap: 8px; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }

/* ---- FICHA / SALDO ---- */
.saldo-box {
    padding: 12px 20px;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 700;
    display: inline-block;
}

.saldo-deudor {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeeba;
}

.saldo-saldado {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}