/* ============================================
   AISSURE Backend - Enterprise Design System
   Versione 1.0 - Restyling Guide Compliant
   ============================================ */

/* ============================================
   CSS Custom Properties (Variables)
   ============================================ */

:root {
    /* === COLORI PRIMARI === */
    /* Navy (Brand AISSURE) */
    --navy-900: #1e3a8a;      /* Primary - Header, CTA, Links */
    --navy-800: #1e40af;      /* Hover states */
    --navy-700: #1d4ed8;      /* Active states */
    --navy-500: #3b82f6;      /* Light accent */
    --navy-100: #dbeafe;      /* Background tint */
    
    /* === COLORI NEUTRALI === */
    /* Grays */
    --gray-50: #f8f9fa;       /* Page background */
    --gray-100: #f1f3f5;      /* Card hover, section bg */
    --gray-200: #e9ecef;      /* Borders light */
    --gray-300: #dee2e6;      /* Borders */
    --gray-400: #ced4da;      /* Borders darker */
    --gray-500: #94a3b8;      /* Text secondary light */
    --gray-600: #64748b;      /* Text secondary */
    --gray-700: #475569;      /* Text primary light */
    --gray-800: #334155;      /* Text primary */
    --gray-900: #1e293b;      /* Text headings */
    
    /* === COLORI FEEDBACK === */
    /* Success */
    --success-500: #10b981;   /* Main success color */
    --success-100: #d1fae5;   /* Background */
    
    /* Warning */
    --warning-500: #f59e0b;   /* Main warning color */
    --warning-100: #fef3c7;   /* Background */
    
    /* Error */
    --error-500: #ef4444;     /* Main error color */
    --error-100: #fee2e2;     /* Background */
    
    /* Info */
    --info-500: #3b82f6;      /* Main info color */
    --info-100: #dbeafe;      /* Background */
    
    /* === BACKGROUNDS === */
    --bg-page: #f8f9fa;
    --bg-card: #ffffff;
    --bg-hover: #f8f9fb;
    --bg-disabled: #f1f3f5;
    
    /* === TIPOGRAFIA === */
    /* Font Family */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    
    /* Headings */
    --h1-size: 28px;
    --h1-weight: 600;
    --h1-color: #1e293b;
    
    --h2-size: 20px;
    --h2-weight: 600;
    --h2-color: #334155;
    
    --h3-size: 16px;
    --h3-weight: 600;
    --h3-color: #475569;
    
    /* Body Text */
    --body-size: 14px;
    --body-weight: 400;
    --body-color: #64748b;
    
    --small-size: 13px;
    --small-weight: 400;
    --small-color: #94a3b8;
    
    /* Labels */
    --label-size: 14px;
    --label-weight: 500;
    --label-color: #475569;
    
    /* Uppercase Labels (table headers, etc) */
    --uppercase-size: 11px;
    --uppercase-weight: 600;
    --uppercase-tracking: 0.05em;
    --uppercase-color: #64748b;
    
    /* === SPACING SYSTEM === */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;
    
    /* === SHADOWS === */
    --shadow-xs: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px rgba(0,0,0,0.15);
    
    /* === BORDER RADIUS === */
    --radius-sm: 4px;         /* Piccoli elementi (badge, tag) */
    --radius-md: 6px;         /* Default (input, button) */
    --radius-lg: 8px;         /* Card, container */
    --radius-xl: 12px;        /* Elementi grandi */
    --radius-full: 9999px;    /* Pill, avatar */
    
    /* === TRANSITIONS === */
    --transition-fast: 0.1s ease;
    --transition-base: 0.15s ease;
    --transition-slow: 0.3s ease;
}

/* ============================================
   Typography
   ============================================ */

* {
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    font-size: var(--body-size);
    font-weight: var(--body-weight);
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--bg-page);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--gray-900);
    margin-bottom: var(--space-4);
}

h1 { 
    font-size: var(--h1-size); 
    font-weight: var(--h1-weight);
    color: var(--h1-color);
}

h2 { 
    font-size: var(--h2-size); 
    font-weight: var(--h2-weight);
    color: var(--h2-color);
}

h3 { 
    font-size: var(--h3-size); 
    font-weight: var(--h3-weight);
    color: var(--h3-color);
}

h4 { font-size: 16px; }
h5 { font-size: 14px; }
h6 { font-size: 13px; }

p {
    font-size: var(--body-size);
    color: var(--body-color);
    margin-bottom: var(--space-4);
}

/* ============================================
   Header/Navigation
   ============================================ */

.navbar {
    height: 56px;
    background: var(--navy-900) !important;
    box-shadow: var(--shadow-sm);
    padding: 0 var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-brand {
    font-weight: 600;
    font-size: 18px;
    color: #ffffff !important;
    display: flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
}

.navbar-brand:hover {
    color: rgba(255, 255, 255, 0.9) !important;
}

.navbar-toggler {
    border-color: rgba(255, 255, 255, 0.3);
    padding: 0.25rem 0.5rem;
}

.navbar-toggler:focus {
    box-shadow: 0 0 0 0.2rem rgba(255, 255, 255, 0.25);
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255, 255, 255, 0.9)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.navbar-nav {
    display: flex;
    gap: 4px;
    align-items: center;
}

.navbar-nav .nav-link {
    padding: var(--space-2) var(--space-5) !important;
    color: rgba(255, 255, 255, 0.8) !important;
    font-size: var(--body-size);
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: var(--transition-base);
    position: relative;
}

.navbar-nav .nav-link:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff !important;
}

.navbar-nav .nav-link.active {
    color: #ffffff !important;
    background: rgba(255, 255, 255, 0.15);
}

.navbar-nav .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 2px;
    background: #ffffff;
}

.navbar-nav .btn-link {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    color: rgba(255, 255, 255, 0.8) !important;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-sm);
    font-size: var(--body-size);
    text-decoration: none;
    transition: var(--transition-base);
}

.navbar-nav .btn-link:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
    color: #ffffff !important;
}

/* ============================================
   Layout & Container
   ============================================ */

.container-fluid {
    padding-left: var(--space-8);
    padding-right: var(--space-8);
    max-width: 1400px;
    margin: 0 auto;
}

main {
    min-height: calc(100vh - 200px);
    padding: var(--space-8) 0;
}

/* ============================================
   Cards
   ============================================ */

.card {
    background: var(--bg-card);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--space-6);
    transition: box-shadow var(--transition-base);
    overflow: hidden;
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    background: var(--gray-50);
    border-bottom: 2px solid var(--gray-200);
    padding: var(--space-4);
    font-weight: 600;
    font-size: var(--h3-size);
    color: var(--gray-900);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-body {
    padding: var(--space-6);
}

.card-footer {
    background-color: var(--gray-50);
    border-top: 1px solid var(--gray-200);
    padding: var(--space-4) var(--space-6);
}

/* Metric Cards (Dashboard) */
.metric-card {
    background: linear-gradient(180deg, #ffffff 0%, #fafbfc 100%);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    min-width: 200px;
    border-left: 4px solid var(--navy-900);
    transition: all 0.2s ease;
}

.metric-card:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    transform: translateY(-2px);
}

/* Varianti colorate per ogni metrica */
.metric-card--applications {
    border-left-color: #3b82f6; /* Blu */
}

.metric-card--clients {
    border-left-color: #10b981; /* Verde */
}

.metric-card--contracts {
    border-left-color: #8b5cf6; /* Viola */
}

.metric-card--usage {
    border-left-color: #f59e0b; /* Arancio */
}

.metric-card__label {
    font-size: var(--uppercase-size);
    font-weight: var(--uppercase-weight);
    text-transform: uppercase;
    letter-spacing: var(--uppercase-tracking);
    color: var(--uppercase-color);
    margin-bottom: var(--space-2);
}

.metric-card__value {
    font-size: 32px;
    font-weight: 600;
    color: var(--navy-900);
    line-height: 1;
    margin: var(--space-2) 0;
}

.metric-card__change {
    font-size: var(--small-size);
    color: var(--gray-500);
    font-weight: 400;
}

.metric-card__change--positive {
    color: var(--success-500);
}

.metric-card__change--negative {
    color: var(--error-500);
}

.metric-card__change--neutral {
    color: var(--gray-500);
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    padding: 10px var(--space-5);
    font-size: var(--body-size);
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    border: none;
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(30, 58, 138, 0.25);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #1e40af 0%, #2563eb 100%);
    box-shadow: 0 4px 12px rgba(30, 58, 138, 0.35);
    transform: translateY(-1px);
}

/* Pulsante "Nuova Applicazione" speciale */
.btn-new-application {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.25);
}

.btn-new-application:hover {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.35);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--gray-600);
    border: 1px solid var(--gray-300);
}

.btn-secondary:hover {
    background: var(--bg-hover);
    border-color: var(--gray-400);
}

.btn-outline-primary {
    border: 1px solid var(--navy-900);
    color: var(--navy-900);
    background: transparent;
}

.btn-outline-primary:hover {
    background: var(--navy-900);
    color: #ffffff;
}

.btn-outline-danger {
    border: 1px solid var(--error-500);
    color: var(--error-500);
    background: transparent;
}

.btn-outline-danger:hover {
    background: var(--error-500);
    color: #ffffff;
}

.btn-sm {
    padding: 6px var(--space-2);
    font-size: var(--small-size);
}

.btn-danger {
    background: var(--error-500);
    color: #ffffff;
}

.btn-danger:hover {
    background: #dc2626;
}

/* ============================================
   Tables
   ============================================ */

.table-container {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    overflow: hidden;
}

.table-wrapper {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    overflow: hidden;
}

.table {
    margin-bottom: 0;
    background-color: var(--bg-card);
    width: 100%;
}

.table thead {
    background: var(--gray-50);
    border-bottom: 2px solid var(--gray-200);
}

.table thead th {
    padding: var(--space-3) var(--space-4);
    font-size: var(--uppercase-size);
    font-weight: var(--uppercase-weight);
    text-transform: uppercase;
    letter-spacing: var(--uppercase-tracking);
    color: var(--uppercase-color);
    border-bottom: 2px solid var(--gray-200);
    white-space: nowrap;
}

.table tbody td {
    padding: var(--space-4);
    font-size: var(--body-size);
    color: var(--gray-700);
    vertical-align: middle;
    border-bottom: 1px solid var(--gray-200);
}

.table tbody tr {
    transition: all var(--transition-base);
    border-left: 3px solid transparent;
}

.table tbody tr:hover {
    background: var(--bg-hover);
    border-left-color: #3b82f6;
}

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

/* Responsive Tables - Scroll orizzontale su tablet */
@media (max-width: 992px) {
    .table-wrapper {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .table {
        min-width: 800px;
    }
}

/* Responsive Tables - Card view su mobile */
@media (max-width: 768px) {
    .table-wrapper {
        border: none;
        background: transparent;
        overflow-x: visible;
    }
    
    .table {
        border: 0;
        min-width: 100%;
    }
    
    .table thead {
        display: none;
    }
    
    .table tbody {
        display: block;
    }
    
    .table tbody tr {
        display: block;
        margin-bottom: var(--space-4);
        border: 1px solid var(--gray-200);
        border-radius: var(--radius-lg);
        padding: var(--space-4);
        background: var(--bg-card);
        border-left: 3px solid var(--navy-500);
    }
    
    .table tbody tr:hover {
        border-left-color: var(--navy-700);
        box-shadow: var(--shadow-sm);
    }
    
    .table tbody td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: var(--space-2) 0;
        border-bottom: 1px solid var(--gray-100);
        text-align: right;
    }
    
    .table tbody td:last-child {
        border-bottom: none;
        padding-top: var(--space-3);
        margin-top: var(--space-2);
        border-top: 1px solid var(--gray-200);
    }
    
    .table tbody td::before {
        content: attr(data-label);
        font-weight: 600;
        color: var(--gray-700);
        font-size: var(--small-size);
        text-transform: uppercase;
        letter-spacing: 0.5px;
        text-align: left;
        flex: 1;
    }
    
    .table tbody td > * {
        flex: 1;
        text-align: right;
    }
    
    /* Azioni sempre visibili e centrate su mobile */
    .table tbody td.text-end {
        justify-content: center;
    }
    
    .table tbody td.text-end::before {
        content: none;
    }
    
    .action-buttons {
        justify-content: center;
        width: 100%;
    }
}

/* Status Badge (Dot Indicator) */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
}

.status-badge__dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}

.status-badge__text {
    font-size: var(--body-size);
    font-weight: 400;
    color: var(--gray-600);
}

.status-badge--active .status-badge__dot {
    background: var(--success-500);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
    animation: pulse 2s ease-in-out infinite;
}

.status-badge--inactive .status-badge__dot {
    background: var(--gray-500);
    box-shadow: 0 0 0 3px rgba(148, 163, 184, 0.15);
}

.status-badge--error .status-badge__dot {
    background: var(--error-500);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.status-badge--warning .status-badge__dot {
    background: var(--warning-500);
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
}

@keyframes pulse {
    0%, 100% { 
        opacity: 1; 
    }
    50% { 
        opacity: 0.7; 
    }
}

/* Action Buttons in Tables */
.action-buttons {
    display: inline-flex;
    gap: 0;
    border: 1px solid var(--gray-200);
    border-radius: 0;
    overflow: hidden;
}

.action-btn {
    padding: 6px 10px;
    color: var(--gray-600);
    border: none;
    border-radius: 0;
    background: transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 32px;
    height: 32px;
    text-decoration: none;
}

.action-btn:not(:last-child) {
    border-right: 1px solid var(--gray-200);
}

.action-btn--delete {
    color: var(--error-500);
}

.action-btn--delete:hover {
    color: #ffffff;
    background: var(--error-500);
}

.action-btn--edit {
    color: var(--navy-500);
}

.action-btn--edit:hover {
    color: #ffffff;
    background: var(--navy-500);
}

/* ============================================
   Audit Fields Section
   ============================================ */

.audit-section {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    margin-top: var(--space-6);
}

.audit-section-title {
    font-size: var(--h3-size);
    font-weight: var(--h3-weight);
    color: var(--gray-700);
    margin-bottom: var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.audit-section-title i {
    color: var(--gray-500);
}

.audit-field {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.audit-field-label {
    font-size: var(--small-size);
    font-weight: 500;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.audit-field-value {
    font-size: var(--body-size);
    color: var(--gray-700);
    font-weight: 500;
    padding: 8px 12px;
    background: #ffffff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
}

.audit-field-value.empty {
    color: var(--gray-400);
    font-style: italic;
}

/* ============================================
   Forms
   ============================================ */

.form-container {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    padding: var(--space-8);
    max-width: 720px;
    box-shadow: var(--shadow-sm);
}

.form-section {
    margin-bottom: var(--space-8);
}

.form-section-title {
    font-size: var(--h3-size);
    font-weight: var(--h3-weight);
    color: var(--gray-900);
    margin-bottom: var(--space-5);
    padding-bottom: var(--space-3);
    border-bottom: 1px solid var(--gray-200);
}

.form-group {
    margin-bottom: var(--space-5);
}

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

.form-label.required::after {
    content: " *";
    color: var(--error-500);
}

.form-control,
.form-select {
    width: 100%;
    padding: 10px var(--space-3);
    font-size: var(--body-size);
    color: var(--gray-900);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    background: var(--bg-card);
}

.form-control:focus,
.form-select:focus {
    outline: none;
    border-color: var(--navy-900);
    box-shadow: none;
}

.form-control:disabled {
    background: var(--bg-disabled);
    color: var(--gray-500);
    cursor: not-allowed;
}

.form-control::placeholder {
    color: var(--gray-400);
}

.form-textarea {
    min-height: 100px;
    resize: vertical;
    font-family: inherit;
}

.form-select {
    padding-right: 36px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
    appearance: none;
    cursor: pointer;
}

/* Toggle Switch */
.toggle-container {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.toggle-switch {
    position: relative;
    width: 44px;
    height: 24px;
    background: var(--gray-300);
    border-radius: 12px;
    cursor: pointer;
    transition: background var(--transition-base);
}

.toggle-switch.active {
    background: var(--navy-900);
}

.toggle-knob {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: #ffffff;
    border-radius: 50%;
    transition: transform var(--transition-base);
}

.toggle-switch.active .toggle-knob {
    transform: translateX(20px);
}

.form-check-input {
    width: 1.25rem;
    height: 1.25rem;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-sm);
}

.form-check-input:checked {
    background-color: var(--navy-900);
    border-color: var(--navy-900);
}

.form-check-label {
    font-weight: 500;
    color: var(--gray-700);
    margin-left: var(--space-2);
}

/* Bootstrap Form Switch (Toggle) */
.form-switch .form-check-input {
    width: 44px;
    height: 24px;
    background-color: var(--gray-300);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: background-color var(--transition-base);
}

.form-switch .form-check-input:checked {
    background-color: var(--navy-900);
    border-color: var(--navy-900);
}

.form-switch .form-check-input:focus {
    box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
    border-color: var(--navy-900);
}

.form-switch .form-check-label {
    margin-left: var(--space-3);
    font-size: var(--body-size);
    color: var(--gray-700);
    cursor: pointer;
}

/* Form Actions */
.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-3);
    margin-top: var(--space-8);
    padding-top: var(--space-6);
    border-top: 1px solid var(--gray-200);
}

/* Validation States */
.form-control.error,
.form-select.error {
    border-color: var(--error-500);
}

.form-control.success,
.form-select.success {
    border-color: var(--success-500);
}

.form-error-message {
    margin-top: 6px;
    font-size: var(--small-size);
    color: var(--error-500);
}

.form-helper-text {
    margin-top: 6px;
    font-size: var(--small-size);
    color: var(--gray-500);
}

/* ============================================
   Badges
   ============================================ */

.badge {
    font-weight: 600;
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ============================================
   Alerts
   ============================================ */

.alert {
    border: none;
    border-radius: var(--radius-md);
    padding: var(--space-4) var(--space-6);
    box-shadow: var(--shadow-sm);
    border-left: 4px solid;
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.alert-success {
    background-color: var(--success-100);
    border-left-color: var(--success-500);
    color: #065f46;
}

.alert-danger {
    background-color: var(--error-100);
    border-left-color: var(--error-500);
    color: #991b1b;
}

.alert-info {
    background-color: var(--info-100);
    border-left-color: var(--info-500);
    color: #1e40af;
}

.alert-warning {
    background-color: var(--warning-100);
    border-left-color: var(--warning-500);
    color: #92400e;
}

/* ============================================
   Page Headers
   ============================================ */

.page-header {
    margin-bottom: var(--space-8);
    padding-bottom: var(--space-6);
    border-bottom: 2px solid var(--gray-200);
}

/* Section Header con Icone Colorate */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-6);
}

.section-title {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.section-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

.section-icon--dashboard {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: #ffffff;
}

.section-icon--applications {
    background: linear-gradient(135deg, #10b981, #059669);
    color: #ffffff;
}

.section-icon--clients {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
    color: #ffffff;
}

.section-icon--contracts {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: #ffffff;
}

.section-subtitle {
    font-size: var(--small-size);
    color: var(--gray-500);
}

.page-header h1 {
    margin-bottom: var(--space-2);
    font-size: var(--h1-size);
    font-weight: var(--h1-weight);
    color: var(--h1-color);
}

.page-header p {
    color: var(--gray-600);
    font-size: var(--body-size);
    margin-bottom: 0;
}

.page-actions {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    flex-wrap: wrap;
}

/* ============================================
   Filters Card
   ============================================ */

.filters-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: var(--space-6);
    margin-bottom: var(--space-6);
    border: 1px solid var(--gray-200);
}

/* ============================================
   Empty States
   ============================================ */

.empty-state {
    text-align: center;
    padding: var(--space-16) var(--space-8);
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
}

.empty-state__icon {
    font-size: 48px;
    margin-bottom: var(--space-4);
    opacity: 0.5;
}

.empty-state__title {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--space-2);
}

.empty-state__description {
    font-size: var(--body-size);
    color: var(--gray-600);
    margin-bottom: var(--space-6);
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

/* ============================================
   Footer
   ============================================ */

footer {
    background: linear-gradient(90deg, #374151 0%, #1f2937 100%);
    color: white;
    padding: var(--space-5) 0;
    margin-top: var(--space-8);
    border-top: 1px solid var(--gray-700);
}

footer .container {
    text-align: center;
    color: white;
}

/* ============================================
   Skip Link (Accessibility)
   ============================================ */

.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--navy-900);
    color: white;
    padding: 8px 16px;
    text-decoration: none;
    z-index: 100;
    border-radius: 0 0 var(--radius-md) 0;
    font-weight: 500;
    transition: top var(--transition-base);
}

.skip-link:focus {
    top: 0;
    outline: 3px solid var(--navy-500);
    outline-offset: 2px;
}

/* ============================================
   Utilities
   ============================================ */

.text-muted {
    color: var(--gray-600) !important;
}

.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }

.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }

/* ============================================
   Animations
   ============================================ */

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

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.fade-in {
    animation: fadeIn var(--transition-base);
}

.slide-in {
    animation: slideIn var(--transition-base);
}

/* Smooth transitions for interactive elements */
a, button, .btn, .card, .table tbody tr {
    transition: var(--transition-base);
}

/* Loading states */
.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Focus states for better accessibility */
.btn:focus-visible,
.form-control:focus-visible,
.form-select:focus-visible {
    box-shadow: none;
}

/* ============================================
   Bootstrap Modals - Enterprise Styling
   ============================================ */

.modal-content {
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
}

.modal-header {
    background: var(--navy-900);
    color: white;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    padding: var(--space-5);
}

.modal-header .btn-close {
    filter: invert(1) grayscale(100%) brightness(200%);
    opacity: 0.9;
}

.modal-header .btn-close:hover {
    opacity: 1;
}

.modal-title {
    font-weight: 600;
    font-size: 18px;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: white;
}

.modal-body {
    padding: var(--space-6);
    color: var(--gray-800);
    line-height: 1.6;
}

.modal-footer {
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--gray-200);
    background-color: var(--gray-50);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.modal-backdrop {
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(2px);
}

/* ============================================
   Bootstrap Datepicker - Custom Styling
   ============================================ */

.datepicker {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-200);
    padding: var(--space-2);
}

.datepicker table tr td.active.active,
.datepicker table tr td.active.highlighted.active,
.datepicker table tr td.active.highlighted:hover.active,
.datepicker table tr td.active:hover.active {
    background: var(--navy-900) !important;
    background-image: none !important;
    color: #ffffff !important;
}

.datepicker table tr td.today,
.datepicker table tr td.today.disabled,
.datepicker table tr td.today.disabled:hover,
.datepicker table tr td.today:hover {
    background: var(--navy-100) !important;
    color: var(--navy-900) !important;
    border-color: var(--navy-500) !important;
}

.datepicker table tr td:hover {
    background: var(--gray-100);
    cursor: pointer;
}

.datepicker .datepicker-switch,
.datepicker .next,
.datepicker .prev,
.datepicker tfoot tr th {
    color: var(--gray-700);
    font-weight: 600;
}

.datepicker .datepicker-switch:hover,
.datepicker .next:hover,
.datepicker .prev:hover,
.datepicker tfoot tr th:hover {
    background: var(--gray-100);
}

/* Input con icona calendario */
.date-input {
    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='M3.5 0a.5.5 0 0 1 .5.5V1h8V.5a.5.5 0 0 1 1 0V1h1a2 2 0 0 1 2 2v11a2 2 0 0 1-2 2H2a2 2 0 0 1-2-2V3a2 2 0 0 1 2-2h1V.5a.5.5 0 0 1 .5-.5zM1 4v10a1 1 0 0 0 1 1h12a1 1 0 0 0 1-1V4H1z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
    padding-right: 36px;
    cursor: pointer;
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 992px) {
    .container-fluid {
        padding-left: var(--space-6);
        padding-right: var(--space-6);
    }
    
    /* Menu mobile - stile navbar quando collassata */
    .navbar-collapse {
        background: var(--navy-900);
        margin-top: var(--space-3);
        border-radius: var(--radius-md);
    }
    
    .navbar-nav {
        padding: var(--space-3) 0;
    }
    
    .navbar-nav .nav-link {
        padding: var(--space-3) var(--space-6) !important;
        border-radius: 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .navbar-nav .nav-link:hover {
        background: rgba(255, 255, 255, 0.15);
    }
    
    .navbar-nav .nav-link.active {
        background: rgba(255, 255, 255, 0.2);
    }
    
    .navbar-nav .nav-link.active::after {
        display: none;
    }
    
    .navbar-nav .btn-link {
        margin: var(--space-2) var(--space-4);
        width: calc(100% - var(--space-8));
    }
    
    .navbar-nav .nav-item:last-child .nav-link {
        border-bottom: none;
    }
}

@media (max-width: 768px) {
    .container-fluid {
        padding-left: var(--space-4);
        padding-right: var(--space-4);
    }
    
    .page-header h1 {
        font-size: var(--h2-size);
    }
    
    .card-body {
        padding: var(--space-4);
    }
    
    .table thead th,
    .table tbody td {
        padding: var(--space-3);
        font-size: var(--small-size);
    }
    
    .page-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .page-actions .btn {
        width: 100%;
    }
    
    .btn-group {
        flex-direction: column;
    }
    
    .btn-group .btn {
        border-radius: var(--radius-md) !important;
        margin-bottom: var(--space-1);
    }
    
    /* Mobile Table Cards */
    .table-row {
        display: block;
        margin-bottom: var(--space-4);
        border: 1px solid var(--gray-200);
        border-radius: var(--radius-lg);
        padding: var(--space-4);
    }
    
    .table-cell {
        display: flex;
        justify-content: space-between;
        padding: var(--space-2) 0;
        border-bottom: 1px solid var(--gray-100);
    }
    
    .table-cell:last-child {
        border-bottom: none;
    }
    
    .table-cell::before {
        content: attr(data-label);
        font-weight: 600;
        color: var(--gray-700);
    }
}

/* ============================================