/* ZONA CV SEGURA - CSS COMPLETO */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --secondary: #64748b;
    --accent: #0ea5e9;
    --bg-white: #ffffff;
    --bg-gray-50: #f8fafc;
    --bg-gray-100: #f1f5f9;
    --bg-gray-900: #0f172a;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-light: #64748b;
    --success: #10b981;
    --warning: #f59e0b;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    --transition: all 0.3s ease;
}

html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header */
.header {
    background-color: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid var(--bg-gray-100);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
    text-decoration: none;
}

.logo-icon { font-size: 1.5rem; }

.nav {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    padding: 0.5rem 0;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.menu-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    transition: var(--transition);
}

/* Hero */
.hero {
    padding: 4rem 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    backdrop-filter: blur(10px);
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    line-height: 1.6;
    opacity: 0.95;
    margin-bottom: 3rem;
}

.hero-notice {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background-color: rgba(255, 255, 255, 0.15);
    border-radius: 0.75rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    margin-bottom: 3rem;
    text-align: left;
}

.notice-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.hero-notice p {
    margin: 0;
    font-size: 0.9375rem;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: 0.75rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    font-size: 1rem;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-secondary {
    background-color: transparent;
    color: white;
    border: 2px solid white;
}

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

/* Sections */
.topics,
.articles {
    padding: 4rem 0;
    background-color: var(--bg-white);
}

.problems,
.trust {
    padding: 4rem 0;
    background-color: var(--bg-gray-50);
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

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

.topic-card {
    padding: 3rem;
    background-color: var(--bg-white);
    border: 2px solid var(--bg-gray-100);
    border-radius: 1rem;
    transition: var(--transition);
    position: relative;
}

.topic-card.featured {
    border-color: var(--primary);
    background: linear-gradient(135deg, #f8fafc 0%, #e0e7ff 100%);
}

.topic-badge {
    position: absolute;
    top: -12px;
    right: 1.5rem;
    padding: 0.5rem 1.5rem;
    background-color: var(--primary);
    color: white;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
}

.topic-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.topic-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.topic-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.topic-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.topic-list {
    list-style: none;
}

.topic-list li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-secondary);
}

.topic-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: 700;
}

/* Problems */
.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.problem-item {
    padding: 3rem;
    background-color: var(--bg-white);
    border-radius: 0.75rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.problem-number {
    display: inline-flex;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
}

.problem-item h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.problem-item p {
    color: var(--text-secondary);
}

.problems-cta,
.articles-cta {
    text-align: center;
}

/* Articles */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.article-card {
    background-color: var(--bg-white);
    border: 1px solid var(--bg-gray-100);
    border-radius: 0.75rem;
    padding: 3rem;
    transition: var(--transition);
}

.article-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.article-tag {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background-color: var(--bg-gray-100);
    color: var(--text-secondary);
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.article-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.article-excerpt {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.article-meta {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--bg-gray-100);
}

.meta-item {
    font-size: 0.875rem;
    color: var(--text-light);
}

.article-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.article-link:hover {
    color: var(--primary-dark);
}

/* Trust */
.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.trust-card {
    text-align: center;
    padding: 3rem;
}

.trust-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.trust-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.trust-description {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Disclaimer */
.disclaimer-section {
    padding: 4rem 0;
    background-color: var(--bg-white);
}

.disclaimer-content {
    max-width: 1000px;
    margin: 0 auto;
    padding: 3rem;
    background-color: var(--bg-gray-50);
    border-radius: 1rem;
    border: 2px solid var(--bg-gray-100);
}

.disclaimer-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
}

.disclaimer-columns {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.disclaimer-column h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.disclaimer-column ul {
    list-style: none;
}

.disclaimer-column li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    line-height: 1.7;
}

.disclaimer-note {
    padding: 1.5rem;
    background-color: white;
    border-left: 4px solid var(--warning);
    border-radius: 0.5rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Footer */
.footer {
    background-color: var(--bg-gray-900);
    color: white;
    padding: 4rem 0 1.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
}

.footer-title {
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.footer-links {
    list-style: none;
}

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

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1.5rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
}

.footer-disclaimer {
    margin-top: 0.5rem;
    font-size: 0.8125rem;
}

/* Responsive */
@media (max-width: 768px) {
    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: white;
        flex-direction: column;
        padding: 1.5rem;
        box-shadow: var(--shadow-lg);
        gap: 1rem;
    }
    
    .nav.active {
        display: flex;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .hero {
        padding: 3rem 0;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .topics-grid,
    .problems-grid,
    .articles-grid,
    .trust-grid,
    .disclaimer-columns {
        grid-template-columns: 1fr;
    }
}