/* === Variables CSS === */
:root {
    --primary-color: #1976D2;
    --primary-dark: #1565C0;
    --primary-light: #42A5F5;
    --secondary-color: #757575;
    --success-color: #4CAF50;
    --warning-color: #FF9800;
    --danger-color: #F44336;
    --info-color: #2196F3;
    --purple-color: #9C27B0;
    --background: #F5F7FA;
    --surface: #FFFFFF;
    --text-primary: #212121;
    --text-secondary: #757575;
    --border-color: #E0E0E0;
    --shadow: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-lg: 0 4px 12px rgba(0,0,0,0.15);
    --transition: all 0.3s ease;
}

/* === Reset & Base === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
}

/* === Header === */
.header {
    background-color: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo i {
    font-size: 32px;
}

.logo h1 {
    font-size: 24px;
    font-weight: 700;
}

.nav-desktop {
    display: flex;
    gap: 10px;
}

.nav-btn {
    background: transparent;
    border: none;
    color: white;
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}

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

.nav-btn.active {
    background-color: rgba(255, 255, 255, 0.2);
}

.nav-btn i {
    font-size: 18px;
}

.mobile-menu-toggle {
    display: none;
    background: transparent;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
}

/* === Mobile Navigation === */
.nav-mobile {
    display: none;
    background: var(--surface);
    box-shadow: var(--shadow-lg);
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    z-index: 999;
    padding: 10px 20px;
}

.nav-mobile.active {
    display: block;
}

.nav-btn-mobile {
    width: 100%;
    background: transparent;
    border: none;
    color: var(--text-primary);
    padding: 15px;
    text-align: left;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 16px;
    border-radius: 8px;
    transition: var(--transition);
}

.nav-btn-mobile:hover {
    background-color: var(--background);
}

.nav-btn-mobile.active {
    background-color: var(--primary-light);
    color: white;
}

.nav-btn-mobile i {
    font-size: 20px;
    width: 24px;
}

/* === Main Content === */
.main-content {
    padding: 30px 0;
    min-height: calc(100vh - 100px);
}

.content-section {
    display: none;
}

.content-section.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

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

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    flex-wrap: wrap;
    gap: 15px;
}

.section-header h2 {
    font-size: 28px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-header h2 i {
    color: var(--primary-color);
}

/* === Cards === */
.card {
    background: var(--surface);
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 25px;
    overflow: hidden;
}

.card-header {
    padding: 20px 25px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.card-header h3 {
    font-size: 18px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-body {
    padding: 25px;
}

/* === Stats Grid === */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--surface);
    border-radius: 12px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.stat-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: white;
}

.stat-icon.blue {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
}

.stat-icon.orange {
    background: linear-gradient(135deg, #FF9800, #FFB74D);
}

.stat-icon.green {
    background: linear-gradient(135deg, #4CAF50, #81C784);
}

.stat-icon.purple {
    background: linear-gradient(135deg, #9C27B0, #BA68C8);
}

.stat-content h3 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-content p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* === Buttons === */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

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

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

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

.btn-secondary:hover {
    background-color: #616161;
}

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

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

.btn-small {
    padding: 6px 12px;
    font-size: 13px;
}

/* === Search Bar === */
.search-bar {
    position: relative;
    margin-bottom: 20px;
}

.search-bar i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

.search-bar input {
    width: 100%;
    padding: 12px 15px 12px 45px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    transition: var(--transition);
}

.search-bar input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(25, 118, 210, 0.1);
}

/* === Filters Bar === */
.filters-bar {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.filter-select {
    padding: 10px 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    background-color: var(--surface);
    cursor: pointer;
    transition: var(--transition);
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* === Data List === */
.data-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.data-item {
    background: var(--background);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    transition: var(--transition);
}

.data-item:hover {
    box-shadow: var(--shadow);
    border-color: var(--primary-light);
}

.data-item-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 12px;
}

.data-item-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.data-item-actions {
    display: flex;
    gap: 8px;
}

.data-item-content {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
    margin-top: 15px;
}

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

.data-field-label {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 500;
}

.data-field-value {
    font-size: 14px;
    color: var(--text-primary);
}

/* === Status Badges === */
.status-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.status-confirmed {
    background-color: #E3F2FD;
    color: #1976D2;
}

.status-inprogress {
    background-color: #FFF3E0;
    color: #F57C00;
}

.status-completed {
    background-color: #E8F5E9;
    color: #388E3C;
}

.status-cancelled {
    background-color: #FFEBEE;
    color: #D32F2F;
}

/* === Modal === */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--surface);
    border-radius: 12px;
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    animation: modalFadeIn 0.3s ease;
}

.modal-large {
    max-width: 900px;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.modal-header {
    padding: 20px 25px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 20px;
    font-weight: 600;
}

.modal-close {
    background: transparent;
    border: none;
    font-size: 28px;
    color: var(--text-secondary);
    cursor: pointer;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.modal-close:hover {
    background-color: var(--background);
    color: var(--text-primary);
}

.modal-body {
    padding: 25px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 25px;
}

/* === Forms === */
.form-group {
    margin-bottom: 20px;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(25, 118, 210, 0.1);
}

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

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

/* === Planning === */
.planning-controls {
    display: flex;
    gap: 10px;
}

.planning-view-selector {
    display: flex;
    gap: 5px;
    background: var(--background);
    padding: 5px;
    border-radius: 8px;
}

.view-btn {
    padding: 8px 16px;
    background: transparent;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
}

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

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

#planningView {
    margin-top: 20px;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 10px;
}

.calendar-header {
    text-align: center;
    font-weight: 600;
    padding: 10px;
    background: var(--background);
    border-radius: 6px;
}

.calendar-day {
    min-height: 100px;
    padding: 10px;
    background: var(--background);
    border-radius: 8px;
    border: 2px solid transparent;
    transition: var(--transition);
}

.calendar-day:hover {
    border-color: var(--primary-light);
}

.calendar-day.today {
    border-color: var(--primary-color);
    background: #E3F2FD;
}

.calendar-day.other-month {
    opacity: 0.5;
}

.day-number {
    font-weight: 600;
    margin-bottom: 8px;
}

.appointment-mini {
    background: var(--primary-color);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 11px;
    margin-bottom: 4px;
    cursor: pointer;
    transition: var(--transition);
}

.appointment-mini:hover {
    background: var(--primary-dark);
}

/* === Utilities === */
.text-muted {
    color: var(--text-secondary);
}

.text-center {
    text-align: center;
}

.mt-20 {
    margin-top: 20px;
}

.mb-20 {
    margin-bottom: 20px;
}

.empty-state {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 64px;
    margin-bottom: 20px;
    opacity: 0.5;
}

/* === Responsive === */
@media (max-width: 768px) {
    .nav-desktop {
        display: none;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .section-header {
        flex-direction: column;
        align-items: stretch;
    }

    .section-header h2 {
        font-size: 22px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .planning-controls {
        flex-direction: column;
    }

    .calendar-grid {
        grid-template-columns: repeat(7, 1fr);
        gap: 5px;
    }

    .calendar-day {
        min-height: 80px;
        padding: 5px;
    }

    .data-item-content {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .filters-bar {
        flex-direction: column;
    }

    .filter-select {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .logo h1 {
        font-size: 18px;
    }

    .main-content {
        padding: 20px 0;
    }

    .card-body {
        padding: 15px;
    }

    .data-item {
        padding: 15px;
    }
}