/* MentoriaHub - Estilo Principal */

/* Reset e configurações básicas */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8fafc;
}

/* Variáveis CSS */
:root {
    --primary-color: #3b82f6;
    --primary-dark: #2563eb;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
    --bg-color: #f8fafc;
    --bg-white: #ffffff;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --border-color: #e5e7eb;
    --border-radius: 8px;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

/* Navbar */
.navbar {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.nav-logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-logo i {
    margin-right: 0.5rem;
    font-size: 1.75rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    transition: all 0.2s;
}

.nav-link:hover {
    color: var(--primary-color);
    background-color: #f1f5f9;
}

.nav-link i {
    margin-right: 0.5rem;
}

.user-menu {
    position: relative;
}

.user-avatar {
    display: flex;
    align-items: center;
    cursor: pointer;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    transition: all 0.2s;
}

.user-avatar:hover {
    background-color: #f1f5f9;
}

.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    display: none;
}

.user-menu:hover .user-dropdown {
    display: block;
}

.user-dropdown a {
    display: block;
    padding: 0.75rem 1rem;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.2s;
}

.user-dropdown a:hover {
    background-color: #f1f5f9;
    color: var(--primary-color);
}

/* Main Content */
.main-content {
    min-height: calc(100vh - 64px - 200px);
    padding: 2rem 0;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Botões */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s;
    cursor: pointer;
    font-size: 0.875rem;
}

.btn i {
    margin-right: 0.5rem;
}

.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: #4b5563;
}

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

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

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

.btn-google {
    background-color: #dc2626;
    color: white;
}

.btn-facebook {
    background-color: #1877f2;
    color: white;
}

.btn-sm {
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
}

.btn-full {
    width: 100%;
}

.btn.disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, #1e40af 100%);
    color: white;
    padding: 4rem 0;
    display: flex;
    align-items: center;
    min-height: 500px;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

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

.hero-icon {
    font-size: 12rem;
    opacity: 0.3;
}

/* Features */
.features {
    padding: 4rem 0;
    background: var(--bg-white);
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    text-align: center;
    padding: 2rem;
    border-radius: var(--border-radius);
    background: var(--bg-color);
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

/* CTA Section */
.cta {
    padding: 4rem 0;
    background: var(--primary-color);
    color: white;
    text-align: center;
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* Auth Forms */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 80vh;
    padding: 2rem 1rem;
}

.auth-card {
    background: var(--bg-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    padding: 2rem;
    width: 100%;
    max-width: 400px;
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header h2 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

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

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: all 0.2s;
}

.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 rgb(59 130 246 / 0.1);
}

.auth-divider {
    text-align: center;
    margin: 1.5rem 0;
    position: relative;
}

.auth-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--border-color);
}

.auth-divider span {
    background: var(--bg-white);
    padding: 0 1rem;
    color: var(--text-secondary);
}

.social-login {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

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

.auth-footer a {
    color: var(--primary-color);
    text-decoration: none;
}

.auth-footer a:hover {
    text-decoration: underline;
}

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
}

.alert i {
    margin-right: 0.5rem;
}

.alert-error {
    background-color: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-success {
    background-color: #f0fdf4;
    color: #166534;
    border: 1px solid #bbf7d0;
}

/* Dashboard */
.dashboard {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.dashboard-header {
    margin-bottom: 2rem;
}

.dashboard-header h1 {
    font-size: 2rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-white);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
}

.stat-icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-right: 1rem;
}

.stat-info h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.dashboard-content {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 2rem;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

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

/* Groups Grid */
.groups-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.group-card {
    background: var(--bg-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    padding: 1.5rem;
    transition: all 0.3s;
}

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

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

.group-header h3 {
    margin: 0;
}

.group-header h3 a {
    color: var(--text-primary);
    text-decoration: none;
}

.group-header h3 a:hover {
    color: var(--primary-color);
}

.group-role {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
}

.role-admin {
    background-color: #fef3c7;
    color: #92400e;
}

.role-member {
    background-color: #dbeafe;
    color: #1e40af;
}

.group-price {
    display: flex;
    align-items: center;
}

.price-free {
    color: var(--success-color);
    font-weight: 500;
}

.price-paid {
    color: var(--primary-color);
    font-weight: 600;
}

.group-description {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.5;
}

.group-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.group-meta span {
    display: flex;
    align-items: center;
}

.group-meta i {
    margin-right: 0.25rem;
}

.group-actions {
    display: flex;
    gap: 0.5rem;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.empty-state h3 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

/* Sidebar */
.dashboard-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.sidebar-widget {
    background: var(--bg-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    padding: 1.5rem;
}

.sidebar-widget h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

.activity-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.activity-item {
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.activity-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.activity-content strong {
    color: var(--text-primary);
}

.activity-content p {
    margin: 0.25rem 0;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.activity-content small {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

.progress-stats {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

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

/* Create Group Form */
.create-group-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1rem;
}

.create-group-card {
    background: var(--bg-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    padding: 2rem;
}

.create-group-header {
    text-align: center;
    margin-bottom: 2rem;
}

.create-group-header h2 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.form-section {
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.form-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.form-section h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
}

.form-section h3 i {
    margin-right: 0.5rem;
}

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

.checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-weight: 500;
    color: var(--text-primary);
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    margin-right: 0.5rem;
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    padding-top: 2rem;
}

/* Group Details */
.group-details {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.group-details .group-header {
    background: var(--bg-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    padding: 2rem;
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.group-info h1 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.group-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    color: var(--text-secondary);
}

.member-badge {
    display: flex;
    align-items: center;
    background-color: #f0fdf4;
    color: #166534;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-weight: 500;
}

.member-badge i {
    margin-right: 0.5rem;
}

.group-content {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 2rem;
}

.group-description {
    background: var(--bg-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    padding: 2rem;
    margin-bottom: 1.5rem;
}

.description-content {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Chat */
.group-chat {
    background: var(--bg-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.chat-container {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.chat-messages {
    height: 400px;
    overflow-y: auto;
    padding: 1rem;
    background: #f9fafb;
}

.message {
    margin-bottom: 1rem;
    max-width: 70%;
}

.message-own {
    margin-left: auto;
}

.message-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.25rem;
    font-size: 0.875rem;
}

.message-time {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

.message-content {
    background: var(--bg-white);
    padding: 0.75rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.message-own .message-content {
    background: var(--primary-color);
    color: white;
}

.no-messages {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
}

.no-messages i {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.chat-form {
    border-top: 1px solid var(--border-color);
    padding: 1rem;
    background: var(--bg-white);
}

.chat-input {
    display: flex;
    gap: 0.5rem;
}

.chat-input input {
    flex: 1;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
}

/* Search Page */
.search-page {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.search-header {
    text-align: center;
    margin-bottom: 2rem;
}

.search-header h1 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.search-filters {
    background: var(--bg-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.filters-form .filter-group {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr auto;
    gap: 1rem;
    align-items: end;
}

.search-input {
    padding: 0.75rem !important;
    font-size: 1rem !important;
}

.filter-select {
    padding: 0.75rem !important;
}

.results-header {
    margin-bottom: 1.5rem;
}

.results-header h2 {
    color: var(--text-primary);
}

.no-results {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-secondary);
}

.no-results i {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.group-category {
    display: flex;
    align-items: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.group-category i {
    margin-right: 0.5rem;
}

.meta-item {
    display: flex;
    align-items: center;
    font-size: 0.875rem;
}

.meta-item i {
    margin-right: 0.25rem;
}

/* Materials */
.group-materials {
    background: var(--bg-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    padding: 1.5rem;
}

.materials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.material-card {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.material-icon {
    font-size: 2rem;
    color: var(--primary-color);
}

.material-info h4 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.material-info p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.material-info small {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

.material-actions {
    margin-top: auto;
}

/* Admin Panel */
.admin-actions {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.group-stats {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.stat {
    display: flex;
    flex-direction: column;
    text-align: center;
}

.stat strong {
    font-size: 1.25rem;
    color: var(--text-primary);
}

.stat span {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Footer */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: white;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: #d1d5db;
    text-decoration: none;
    transition: color 0.2s;
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid #374151;
    margin-top: 2rem;
    padding-top: 1rem;
    text-align: center;
    color: #9ca3af;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .nav-menu {
        display: none;
    }
    
    .dashboard-content {
        grid-template-columns: 1fr;
    }
    
    .group-content {
        grid-template-columns: 1fr;
    }
    
    .group-details .group-header {
        flex-direction: column;
        gap: 1rem;
    }
    
    .filters-form .filter-group {
        grid-template-columns: 1fr;
    }
    
    .groups-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .form-actions {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 0 0.5rem;
    }
    
    .container {
        padding: 0 0.5rem;
    }
    
    .hero {
        padding: 2rem 0;
    }
    
    .features {
        padding: 2rem 0;
    }
    
    .cta {
        padding: 2rem 0;
    }
}