/* Reset e variabili globali */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1e40af;
    --primary-dark: #1e3a8a;
    --primary-light: #3b82f6;
    --secondary-color: #6b7280;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --purple-color: #8b5cf6;
    --background: #f9fafb;
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 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);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--background);
    color: var(--gray-900);
    line-height: 1.5;
}

/* Header */
.header {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 1rem;
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header .container {
    max-width: 100%;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1rem;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.header-info h1 {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0;
}

.header-info p {
    font-size: 0.875rem;
    opacity: 0.8;
    margin: 0;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.notification-btn {
    background: none;
    border: none;
    color: var(--white);
    cursor: pointer;
    position: relative;
    padding: 0.5rem;
}

.notification-btn:hover {
    opacity: 0.8;
}

.notification-badge {
    position: absolute;
    top: 0;
    right: 0;
    background-color: var(--danger-color);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 600;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
}

.logout-btn {
    background: none;
    border: none;
    color: var(--white);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 6px;
    transition: all 0.2s;
}

.logout-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* Layout */
.app-layout {
    display: flex;
    min-height: calc(100vh - 72px);
}

/* Sidebar */
.sidebar {
    width: 250px;
    background-color: var(--gray-100);
    padding: 1rem;
    border-right: 1px solid var(--gray-200);
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    background: none;
    border: none;
    color: var(--gray-700);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    text-align: left;
    width: 100%;
}

.nav-item:hover {
    background-color: var(--gray-200);
    color: var(--gray-900);
}

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

.nav-item svg {
    flex-shrink: 0;
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
}

.view {
    display: none;
}

.view.active {
    display: block;
}

.page-title {
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--gray-900);
}

/* Cards */
.card {
    background-color: var(--white);
    border-radius: 8px;
    box-shadow: var(--shadow);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--gray-900);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background-color: var(--white);
    border-radius: 8px;
    box-shadow: var(--shadow);
    padding: 1.5rem;
}

.stat-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-bottom: 0.25rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray-900);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon.orange {
    background-color: #fed7aa;
    color: var(--warning-color);
}

.stat-icon.green {
    background-color: #d1fae5;
    color: var(--success-color);
}

.stat-icon.blue {
    background-color: #dbeafe;
    color: var(--primary-light);
}

.stat-icon.purple {
    background-color: #e9d5ff;
    color: var(--purple-color);
}

.stat-detail {
    font-size: 0.875rem;
    color: var(--gray-500);
}

/* Request List */
.request-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.request-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    transition: all 0.2s;
}

.request-item:hover {
    background-color: var(--gray-50);
    border-color: var(--gray-300);
}

.request-status {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: 1rem;
}

.request-status.approved {
    background-color: var(--success-color);
}

.request-status.pending {
    background-color: var(--warning-color);
}

.request-status.rejected {
    background-color: var(--danger-color);
}

.request-info {
    flex: 1;
}

.request-name {
    font-weight: 500;
    color: var(--gray-900);
    margin-bottom: 0.25rem;
}

.request-meta {
    font-size: 0.875rem;
    color: var(--gray-600);
}

.request-action {
    background: none;
    border: none;
    color: var(--primary-color);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    padding: 0.5rem 1rem;
    transition: color 0.2s;
}

.request-action:hover {
    color: var(--primary-dark);
}

/* Form Progress */
.form-progress {
    margin-bottom: 2rem;
}

.progress-track {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    position: relative;
    z-index: 2;
}

.step-indicator {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--gray-200);
    color: var(--gray-600);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
    font-size: 0.875rem;
    transition: all 0.3s;
}

.progress-step.active .step-indicator {
    background-color: var(--primary-color);
    color: var(--white);
}

.progress-step.completed .step-indicator {
    background-color: var(--success-color);
    color: var(--white);
}

.step-label {
    font-size: 0.75rem;
    color: var(--gray-600);
    text-align: center;
    max-width: 80px;
}

.progress-line {
    flex: 1;
    height: 2px;
    background-color: var(--gray-200);
    margin: 0 -20px;
    z-index: 1;
}

.progress-line.active {
    background-color: var(--primary-color);
}

/* Forms */
.form-section-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--gray-900);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
}

.form-input {
    width: 100%;
    padding: 0.625rem 0.875rem;
    border: 1px solid var(--gray-300);
    border-radius: 6px;
    font-size: 0.875rem;
    transition: all 0.2s;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-input[type="textarea"] {
    resize: vertical;
    min-height: 100px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.radio-group {
    display: flex;
    gap: 1.5rem;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.875rem;
}

.radio-label input[type="radio"] {
    cursor: pointer;
}

.form-step {
    min-height: 400px;
}

.form-step.hidden {
    display: none;
}

.form-navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--gray-200);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    text-decoration: none;
}

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

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

.btn-secondary {
    background-color: var(--white);
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
}

.btn-secondary:hover {
    background-color: var(--gray-50);
    color: var(--gray-900);
}

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

.btn-success:hover {
    background-color: #059669;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Loading spinner */
.loading {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Calendar */
.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.calendar-controls {
    display: flex;
    gap: 0.5rem;
}

.calendar-legend {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.875rem;
}

.legend-label {
    color: var(--gray-600);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.legend-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.legend-dot.approved {
    background-color: var(--success-color);
}

.legend-dot.pending {
    background-color: var(--warning-color);
}

.legend-dot.rejected {
    background-color: var(--danger-color);
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 1px;
    background-color: var(--gray-200);
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    overflow: hidden;
}

.calendar-day-header {
    background-color: var(--gray-50);
    padding: 0.75rem;
    text-align: center;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-600);
}

.calendar-day {
    background-color: var(--white);
    min-height: 80px;
    padding: 0.5rem;
    position: relative;
    cursor: pointer;
    transition: background-color 0.2s;
}

.calendar-day:hover {
    background-color: var(--gray-50);
}

.day-number {
    font-size: 0.875rem;
    color: var(--gray-600);
}

.calendar-event {
    margin-top: 0.25rem;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.calendar-event.approved {
    background-color: #d1fae5;
    color: #065f46;
}

.calendar-event.pending {
    background-color: #fed7aa;
    color: #92400e;
}

.calendar-event.rejected {
    background-color: #fee2e2;
    color: #991b1b;
}

/* Responsive */
@media (max-width: 768px) {
    .app-layout {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--gray-200);
        padding: 0.5rem;
    }
    
    .sidebar-nav {
        flex-direction: row;
        overflow-x: auto;
        gap: 0.25rem;
    }
    
    .nav-item {
        white-space: nowrap;
        padding: 0.5rem 1rem;
    }
    
    .main-content {
        padding: 1rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .header .container {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
    
    .calendar-controls {
        flex-wrap: wrap;
    }
    
    .calendar-legend {
        flex-wrap: wrap;
        font-size: 0.75rem;
    }
    
    .progress-track {
        overflow-x: auto;
        padding-bottom: 1rem;
    }
    
    .step-label {
        font-size: 0.625rem;
    }
}