/* ============================================================
   PARTES DE TRABAJO - Hoja de estilos principal
   Diseño moderno, limpio y responsivo
   ============================================================ */

:root {
    /* Colores principales */
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #dbeafe;
    --primary-50: #eff6ff;
    --secondary: #475569;
    --accent: #f59e0b;
    
    /* Estados */
    --success: #16a34a;
    --success-light: #dcfce7;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --danger: #dc2626;
    --danger-light: #fee2e2;
    --info: #0891b2;
    --info-light: #cffafe;

    /* Neutros */
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    
    /* Layout */
    --sidebar-width: 260px;
    --topbar-height: 60px;
    --radius: 8px;
    --radius-lg: 12px;
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
    --transition: all 0.2s ease;

    /* Typography */
    --font: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html { font-size: 15px; -webkit-text-size-adjust: 100%; }

body {
    font-family: var(--font);
    background: var(--gray-50);
    color: var(--gray-800);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

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

img { max-width: 100%; }

/* ===== SIDEBAR ===== */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--gray-900);
    color: #fff;
    display: flex;
    flex-direction: column;
    z-index: 1000;
    transition: transform 0.3s ease;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 20px 16px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.sidebar-logo i { font-size: 1.5rem; color: var(--primary); }

.sidebar-close {
    display: none;
    background: none;
    border: none;
    color: var(--gray-400);
    font-size: 1.3rem;
    cursor: pointer;
    padding: 4px;
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.user-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.user-info { display: flex; flex-direction: column; overflow: hidden; }
.user-name { font-weight: 600; font-size: 0.85rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role { font-size: 0.72rem; color: var(--gray-400); text-transform: uppercase; letter-spacing: 0.05em; }

.sidebar-empresa {
    padding: 12px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.empresa-select {
    width: 100%;
    padding: 8px 10px;
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,0.15);
    background: rgba(255,255,255,0.05);
    color: #fff;
    font-family: var(--font);
    font-size: 0.8rem;
    cursor: pointer;
}
.empresa-select option { background: var(--gray-800); color: #fff; }

.empresa-label {
    font-size: 0.8rem;
    color: var(--gray-400);
    display: flex;
    align-items: center;
    gap: 8px;
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 12px 10px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: var(--radius);
    color: var(--gray-300);
    font-size: 0.88rem;
    font-weight: 500;
    transition: var(--transition);
    margin-bottom: 2px;
}

.nav-item:hover {
    background: rgba(255,255,255,0.08);
    color: #fff;
}

.nav-item.active {
    background: var(--primary);
    color: #fff;
}

.nav-item i { font-size: 1.15rem; width: 22px; text-align: center; }

.nav-divider {
    padding: 16px 14px 6px;
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--gray-500);
}

.sidebar-footer {
    padding: 10px;
    border-top: 1px solid rgba(255,255,255,0.08);
}

.logout-btn:hover { background: rgba(220, 38, 38, 0.2) !important; color: #fca5a5 !important; }

/* ===== MAIN CONTENT ===== */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    transition: margin-left 0.3s ease;
}

.topbar {
    position: sticky;
    top: 0;
    height: var(--topbar-height);
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    padding: 0 24px;
    gap: 16px;
    z-index: 100;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--gray-700);
    cursor: pointer;
    padding: 4px;
}

.page-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--gray-800);
    letter-spacing: -0.02em;
}

.topbar-right {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 12px;
}

.topbar-empresa {
    font-size: 0.8rem;
    color: var(--gray-500);
    display: flex;
    align-items: center;
    gap: 6px;
}

.content-wrapper {
    padding: 24px;
    max-width: 1400px;
}

.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 999;
}

/* ===== CARDS ===== */
.card {
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-200);
    overflow: hidden;
}

.card-header {
    padding: 18px 24px;
    border-bottom: 1px solid var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

.card-header h2, .card-header h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--gray-800);
}

.card-body { padding: 24px; }
.card-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--gray-100);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* ===== STAT CARDS ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-200);
    display: flex;
    align-items: flex-start;
    gap: 14px;
}

.stat-icon {
    width: 46px;
    height: 46px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.stat-icon.blue { background: var(--primary-light); color: var(--primary); }
.stat-icon.green { background: var(--success-light); color: var(--success); }
.stat-icon.amber { background: var(--warning-light); color: var(--warning); }
.stat-icon.red { background: var(--danger-light); color: var(--danger); }
.stat-icon.cyan { background: var(--info-light); color: var(--info); }

.stat-info { flex: 1; }
.stat-label { font-size: 0.78rem; color: var(--gray-500); font-weight: 500; margin-bottom: 4px; }
.stat-value { font-size: 1.6rem; font-weight: 700; color: var(--gray-800); line-height: 1.2; }

/* ===== FORMS ===== */
.form-group {
    margin-bottom: 18px;
}

.form-group label, label.form-label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 6px;
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-family: var(--font);
    font-size: 0.9rem;
    color: var(--gray-800);
    background: #fff;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-control.is-invalid {
    border-color: var(--danger);
}

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

textarea.form-control {
    resize: vertical;
    min-height: 80px;
}

select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%2364748b' viewBox='0 0 16 16'%3E%3Cpath d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

.invalid-feedback {
    font-size: 0.78rem;
    color: var(--danger);
    margin-top: 4px;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius);
    font-family: var(--font);
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.btn:active { transform: scale(0.97); }
.btn i { font-size: 1.05rem; }

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

.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #15803d; color: #fff; }

.btn-warning { background: var(--warning); color: var(--gray-800); }
.btn-warning:hover { background: #d97706; }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #b91c1c; color: #fff; }

.btn-outline {
    background: transparent;
    border: 1px solid var(--gray-300);
    color: var(--gray-700);
}
.btn-outline:hover { background: var(--gray-100); color: var(--gray-800); }

.btn-sm { padding: 6px 14px; font-size: 0.8rem; }
.btn-lg { padding: 12px 28px; font-size: 1rem; }

.btn-group { display: flex; gap: 8px; flex-wrap: wrap; }

/* ===== TABLE ===== */
.table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 12px 16px;
    text-align: left;
    font-size: 0.88rem;
    border-bottom: 1px solid var(--gray-100);
}

th {
    font-weight: 600;
    color: var(--gray-600);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    background: var(--gray-50);
    position: sticky;
    top: 0;
}

tbody tr { transition: background 0.15s; }
tbody tr:hover { background: var(--gray-50); }

/* ===== BADGES ===== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.73rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.badge-pendiente { background: var(--warning-light); color: #92400e; }
.badge-completado { background: var(--info-light); color: #155e75; }
.badge-validado { background: var(--success-light); color: #166534; }
.badge-activo { background: var(--success-light); color: var(--success); }
.badge-inactivo { background: var(--gray-200); color: var(--gray-600); }

/* ===== FILTERS BAR ===== */
.filters-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    margin-bottom: 20px;
}

.filter-group {
    display: flex;
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    overflow: hidden;
}

.filter-btn {
    padding: 8px 16px;
    border: none;
    background: transparent;
    font-family: var(--font);
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--gray-600);
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover { background: var(--gray-100); }
.filter-btn.active { background: var(--primary); color: #fff; }

.search-box {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 0 14px;
    flex: 1;
    min-width: 200px;
    max-width: 350px;
}

.search-box i { color: var(--gray-400); font-size: 1rem; }
.search-box input {
    flex: 1;
    border: none;
    padding: 8px 0;
    font-family: var(--font);
    font-size: 0.88rem;
    background: transparent;
    outline: none;
    color: var(--gray-800);
}

/* ===== SIGNATURE PAD ===== */
.signature-wrapper {
    border: 2px dashed var(--gray-300);
    border-radius: var(--radius);
    background: #fff;
    position: relative;
    touch-action: none;
}

.signature-wrapper canvas {
    display: block;
    width: 100%;
    cursor: crosshair;
}

.signature-actions {
    display: flex;
    gap: 8px;
    margin-top: 8px;
}

.signature-label {
    position: absolute;
    top: 8px;
    left: 12px;
    font-size: 0.72rem;
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    pointer-events: none;
}

/* ===== MODAL ===== */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

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

.modal {
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 { font-size: 1.05rem; font-weight: 700; }

.modal-close {
    background: none;
    border: none;
    font-size: 1.3rem;
    color: var(--gray-400);
    cursor: pointer;
    padding: 4px;
}

.modal-body { padding: 24px; }
.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--gray-100);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* ===== TOAST ===== */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    padding: 14px 20px;
    border-radius: var(--radius);
    font-size: 0.88rem;
    font-weight: 500;
    color: #fff;
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 280px;
}

.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }
.toast.warning { background: var(--warning); color: var(--gray-800); }
.toast.info { background: var(--info); }

.toast-close {
    background: none;
    border: none;
    color: inherit;
    cursor: pointer;
    font-size: 1.1rem;
    margin-left: auto;
    opacity: 0.7;
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* ===== PAGINATION ===== */
.pagination {
    display: flex;
    gap: 4px;
    align-items: center;
    justify-content: center;
    padding: 20px 0;
    list-style: none;
}

.pagination a, .pagination span {
    padding: 8px 14px;
    border-radius: var(--radius);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--gray-600);
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}

.pagination a:hover { background: var(--gray-100); }
.pagination .active span { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ===== ALERT ===== */
.alert {
    padding: 14px 18px;
    border-radius: var(--radius);
    font-size: 0.88rem;
    margin-bottom: 18px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.alert-success { background: var(--success-light); color: #166534; border-left: 4px solid var(--success); }
.alert-danger { background: var(--danger-light); color: #991b1b; border-left: 4px solid var(--danger); }
.alert-warning { background: var(--warning-light); color: #92400e; border-left: 4px solid var(--warning); }
.alert-info { background: var(--info-light); color: #155e75; border-left: 4px solid var(--info); }

/* ===== LOGIN PAGE ===== */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--gray-900) 0%, #1a1a2e 50%, var(--gray-800) 100%);
    padding: 20px;
}

.login-card {
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 420px;
    overflow: hidden;
}

.login-header {
    background: var(--primary);
    color: #fff;
    padding: 32px 32px 28px;
    text-align: center;
}

.login-header i { font-size: 2.5rem; margin-bottom: 12px; display: block; }
.login-header h1 { font-size: 1.3rem; font-weight: 700; margin-bottom: 4px; }
.login-header p { font-size: 0.82rem; opacity: 0.85; }

.login-body { padding: 32px; }
.login-body .form-group { margin-bottom: 20px; }
.login-body .form-control { padding: 12px 14px; }

.login-btn {
    width: 100%;
    padding: 13px;
    font-size: 0.95rem;
    justify-content: center;
}

/* ===== EMPTY STATE ===== */
.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--gray-400);
}

.empty-state i { font-size: 3rem; margin-bottom: 12px; }
.empty-state p { font-size: 0.95rem; margin-bottom: 16px; }

/* ===== HELPERS ===== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--gray-500); }
.text-small { font-size: 0.82rem; }
.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: 12px; }
.mb-3 { margin-bottom: 18px; }
.mb-4 { margin-bottom: 24px; }
.mt-2 { margin-top: 12px; }
.mt-3 { margin-top: 18px; }
.d-flex { display: flex; }
.gap-2 { gap: 12px; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }
.w-100 { width: 100%; }

/* ===== ACTIONS COLUMN ===== */
.actions-cell {
    display: flex;
    gap: 6px;
    align-items: center;
}

.btn-icon {
    width: 34px;
    height: 34px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    border: 1px solid var(--gray-200);
    background: #fff;
    color: var(--gray-600);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.95rem;
}

.btn-icon:hover { background: var(--gray-100); color: var(--gray-800); }
.btn-icon.edit:hover { color: var(--primary); border-color: var(--primary-light); background: var(--primary-50); }
.btn-icon.delete:hover { color: var(--danger); border-color: var(--danger-light); background: var(--danger-light); }
.btn-icon.validate:hover { color: var(--success); border-color: var(--success-light); background: var(--success-light); }
.btn-icon.view:hover { color: var(--info); border-color: var(--info-light); background: var(--info-light); }

/* ===== RESPONSIVE ===== */
@media (max-width: 991px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.open { transform: translateX(0); }
    .sidebar-close { display: block; }
    .sidebar-overlay.active { display: block; }
    .main-content { margin-left: 0; }
    .menu-toggle { display: block; }
    .content-wrapper { padding: 16px; }
    .d-none-mobile { display: none !important; }
}

@media (max-width: 768px) {
    html { font-size: 14px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .form-row { grid-template-columns: 1fr; }
    .card-header { padding: 14px 18px; }
    .card-body { padding: 18px; }
    th, td { padding: 10px 12px; font-size: 0.82rem; }
    .filters-bar { flex-direction: column; align-items: stretch; }
    .search-box { max-width: 100%; }
    .btn { padding: 8px 16px; font-size: 0.82rem; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
    .topbar { padding: 0 16px; }
    .page-title { font-size: 1rem; }
    .modal { margin: 10px; }
}

/* Print */
@media print {
    .sidebar, .topbar, .sidebar-overlay, .toast-container, .filters-bar, .btn { display: none !important; }
    .main-content { margin-left: 0 !important; }
    .content-wrapper { padding: 0 !important; }
    .card { box-shadow: none !important; border: 1px solid #ddd !important; }
}