/**
 * RankSEOVise - Estilos principales
 */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f5f7fa;
}

a {
    text-decoration: none;
    color: #4f46e5;
}

a:hover {
    text-decoration: underline;
}

/* Layout */
.app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    background: white;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: #4f46e5;
}

.logo span {
    color: #7c3aed;
}

.nav {
    display: flex;
    gap: 30px;
}

.nav a {
    color: #666;
    font-weight: 500;
    padding: 8px 0;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
}

.nav a:hover {
    color: #4f46e5;
    text-decoration: none;
    border-bottom-color: #4f46e5;
}

.header-actions {
    display: flex;
    gap: 15px;
}

/* Main content */
.main {
    flex: 1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Hero section */
.hero {
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    color: white;
    padding: 80px 0;
    text-align: center;
}

.hero h1 {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero p {
    font-size: 20px;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto 40px;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
}

.btn-primary {
    background: white;
    color: #4f46e5;
}

.btn-primary:hover {
    background: #f9fafb;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid rgba(255,255,255,0.3);
}

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

.btn-accent {
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    color: white;
}

.btn-accent:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(79, 70, 229, 0.4);
}

/* Features section */
.features {
    padding: 80px 0;
    background: white;
}

.features h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    padding: 30px;
    border-radius: 16px;
    background: #f9fafb;
    text-align: center;
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 10px;
}

.feature-card p {
    color: #666;
}

/* Login page */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    padding: 20px;
}

.login-box {
    background: white;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    width: 100%;
    max-width: 400px;
}

.login-box h1 {
    text-align: center;
    margin-bottom: 30px;
    color: #333;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #555;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: #4f46e5;
}

.login-box .btn {
    width: 100%;
    margin-top: 10px;
}

.login-footer {
    text-align: center;
    margin-top: 20px;
    color: #666;
}

.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.alert-error {
    background: #fee2e2;
    color: #dc2626;
}

.alert-success {
    background: #d1fae5;
    color: #059669;
}

/* Dashboard */
.dashboard-header {
    background: white;
    padding: 40px 0;
    margin-bottom: 40px;
}

.dashboard-header h1 {
    font-size: 32px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.stat-card {
    background: white;
    padding: 24px;
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.stat-card h3 {
    font-size: 14px;
    color: #666;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.stat-card .value {
    font-size: 32px;
    font-weight: 700;
    color: #4f46e5;
}

/* Footer */
.footer {
    background: #1f2937;
    color: white;
    padding: 40px 0;
    text-align: center;
}

.footer p {
    opacity: 0.8;
}

/* Error pages */
.error-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 20px;
}

.error-code {
    font-size: 120px;
    font-weight: 800;
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
}

.error-page h1 {
    font-size: 32px;
    margin: 20px 0 10px;
}

.error-page p {
    color: #666;
    margin-bottom: 30px;
}

/* Responsive */
@media (max-width: 768px) {
    .header-content {
        flex-wrap: wrap;
        height: auto;
        padding: 15px 20px;
    }
    
    .nav {
        display: none;
    }
    
    .hero h1 {
        font-size: 32px;
    }
    
    .hero p {
        font-size: 18px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
}
/* Grid Utilities */
.grid {
    display: grid;
    gap: 20px;
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

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

/* Responsive */
@media (max-width: 1200px) {
    .grid-5 {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .grid-4,
    .grid-5 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .grid-2,
    .grid-3,
    .grid-4,
    .grid-5 {
        grid-template-columns: 1fr;
    }
}

/* Button sizes */
.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
}

/* Card styles */
.card {
    background: white;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

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

/* Utility for dashboard */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 500;
}