/* Reset y Variables */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #3b82f6;
    --secondary-color: #1e40af;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --dark-bg: #1f2937;
    --sidebar-bg: #111827;
    --card-bg: #ffffff;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --border-color: #e5e7eb;
    --hover-bg: #f3f4f6;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: #f9fafb;
    color: var(--text-primary);
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background: var(--sidebar-bg);
    color: white;
    padding: 20px 0;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
}

.logo {
    padding: 0 20px 30px;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.logo h2 {
    font-size: 22px;
    font-weight: 600;
}

.nav-menu {
    padding: 20px 0;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: #9ca3af;
    text-decoration: none;
    transition: all 0.3s;
    border-left: 3px solid transparent;
}

.nav-item:hover {
    background: rgba(59, 130, 246, 0.1);
    color: white;
}

.nav-item.active {
    background: rgba(59, 130, 246, 0.15);
    border-left-color: var(--primary-color);
    color: white;
}

.nav-item .icon {
    margin-right: 12px;
    font-size: 20px;
}

/* Main Content */
.main-content {
    margin-left: 260px;
    flex: 1;
    padding: 20px;
}

/* Header */
.header {
    background: white;
    padding: 20px 30px;
    border-radius: 10px;
    margin-bottom: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.search-bar input {
    width: 400px;
    padding: 10px 20px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
}

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

.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.btn-notification {
    position: relative;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
}

.badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background: var(--danger-color);
    color: white;
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 10px;
    font-weight: 600;
}

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

.user-profile img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-weight: 600;
    font-size: 14px;
}

.user-role {
    font-size: 12px;
    color: var(--text-secondary);
}

/* Content Sections */
.content-section {
    display: none;
}

.content-section.active {
    display: block;
}

.page-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 25px;
    color: var(--text-primary);
}

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

.stat-card {
    background: white;
    padding: 25px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
}

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

.stat-icon.blue { background: rgba(59, 130, 246, 0.1); }
.stat-icon.green { background: rgba(16, 185, 129, 0.1); }
.stat-icon.orange { background: rgba(245, 158, 11, 0.1); }
.stat-icon.purple { background: rgba(139, 92, 246, 0.1); }

.stat-info h3 {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 8px;
}

.stat-number {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 5px;
}

.stat-change {
    font-size: 13px;
    color: var(--text-secondary);
}

.stat-change.positive {
    color: var(--success-color);
}

/* Cards */
.card {
    background: white;
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    margin-bottom: 20px;
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 20px;
}

/* Tables */
.table-responsive {
    overflow-x: auto;
}

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

.data-table thead {
    background: #f9fafb;
}

.data-table th {
    padding: 12px;
    text-align: left;
    font-weight: 600;
    font-size: 13px;
    color: var(--text-secondary);
    border-bottom: 2px solid var(--border-color);
}

.data-table td {
    padding: 14px 12px;
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
}

.data-table tbody tr:hover {
    background: var(--hover-bg);
}

.badge-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger-color);
}

/* Activity List */
.activity-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.activity-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px;
    border-left: 3px solid var(--border-color);
    transition: all 0.3s;
}

.activity-item:hover {
    background: var(--hover-bg);
    border-left-color: var(--primary-color);
}

.activity-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}

.activity-icon.blue { background: rgba(59, 130, 246, 0.1); }
.activity-icon.green { background: rgba(16, 185, 129, 0.1); }
.activity-icon.orange { background: rgba(245, 158, 11, 0.1); }

.activity-content p {
    margin-bottom: 4px;
    font-size: 14px;
}

.activity-content span {
    font-size: 12px;
    color: var(--text-secondary);
}

/* Section Header */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

/* Buttons */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
}

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

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

.btn-secondary {
    background: #e5e7eb;
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: #d1d5db;
}

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

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

.btn-action {
    background: none;
    border: none;
    font-size: 18px;
    cursor: pointer;
    padding: 5px 10px;
    transition: transform 0.2s;
}

.btn-action:hover {
    transform: scale(1.2);
}

/* Card Filters */
.card-filters {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
}

.card-filters input,
.card-filters select {
    padding: 10px 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
}

.card-filters input {
    flex: 1;
}

/* Doctors Grid */
.doctors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.doctor-card {
    background: white;
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s;
}

.doctor-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
}

.doctor-card img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    margin-bottom: 15px;
}

.doctor-card h3 {
    font-size: 18px;
    margin-bottom: 5px;
}

.specialty {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 20px;
}

.doctor-stats {
    display: flex;
    justify-content: space-around;
    margin: 20px 0;
    padding: 15px 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.doctor-stats div {
    display: flex;
    flex-direction: column;
}

.doctor-stats strong {
    font-size: 20px;
    color: var(--primary-color);
}

.doctor-stats span {
    font-size: 12px;
    color: var(--text-secondary);
}

/* Calendar */
.calendar-view {
    padding: 20px 0;
}

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

.btn-calendar {
    background: none;
    border: 1px solid var(--border-color);
    padding: 8px 15px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
}

.btn-calendar:hover {
    background: var(--hover-bg);
}

.appointments-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.appointment-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: all 0.3s;
}

.appointment-item:hover {
    border-color: var(--primary-color);
    background: var(--hover-bg);
}

.appointment-time {
    font-weight: 600;
    font-size: 16px;
    color: var(--primary-color);
    min-width: 60px;
}

.appointment-details {
    flex: 1;
}

.appointment-details h4 {
    font-size: 15px;
    margin-bottom: 4px;
}

.appointment-details p {
    font-size: 13px;
    color: var(--text-secondary);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: white;
    border-radius: 12px;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
}

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

.modal-header h2 {
    font-size: 20px;
}

.modal-close {
    background: none;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: var(--text-secondary);
}

.modal-body {
    padding: 25px;
}

.modal-footer {
    padding: 20px 25px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* Forms */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 14px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 70px;
    }

    .sidebar .logo h2,
    .nav-item span:not(.icon) {
        display: none;
    }

    .main-content {
        margin-left: 70px;
    }

    .header {
        flex-direction: column;
        gap: 15px;
    }

    .search-bar input {
        width: 100%;
    }

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

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

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