/* ===========================================
   UCREDITMOON - CSS PRINCIPAL
   Versión: 2.0 - Enero 2026
   =========================================== */

/* Variables CSS */
:root {
    --primary: #0066cc;
    --primary-dark: #004999;
    --secondary: #00c853;
    --accent: #ff6b00;
    --dark: #1a1a2e;
    --gray-900: #16213e;
    --gray-800: #2c3e50;
    --gray-700: #546e7a;
    --gray-300: #cfd8dc;
    --gray-100: #f5f7fa;
    --white: #ffffff;
    --font-primary: 'DM Sans', system-ui, sans-serif;
    --font-mono: 'Space Mono', monospace;
}

/* Reset */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

/* Base */
body {
    font-family: var(--font-primary);
    color: var(--gray-900);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Header */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--gray-300);
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.header-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
    font-family: var(--font-mono);
}

.logo span { color: var(--accent); }

.nav {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav a {
    color: var(--gray-800);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 150ms;
}

.nav a:hover { color: var(--primary); }

/* Breadcrumbs */
.breadcrumbs {
    padding: 1.5rem 0 1rem;
    font-size: 0.9rem;
    color: var(--gray-700);
}

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

.breadcrumbs a:hover { text-decoration: underline; }

/* Container */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.content-wrapper {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 0 4rem;
}

/* Typography */
h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    color: var(--dark);
    margin-bottom: 1.5rem;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(1.5rem, 4vw, 2.25rem);
    color: var(--dark);
    margin: 2.5rem 0 1.25rem;
    line-height: 1.3;
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    color: var(--dark);
    margin: 2rem 0 1rem;
}

p {
    margin-bottom: 1.25rem;
    line-height: 1.7;
    color: var(--gray-800);
}

strong {
    color: var(--dark);
    font-weight: 600;
}

ul, ol {
    margin-bottom: 1.5rem;
    padding-left: 2rem;
}

li {
    margin-bottom: 0.5rem;
    color: var(--gray-800);
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    background: var(--white);
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    border-radius: 8px;
    overflow: hidden;
}

th {
    background: var(--primary);
    color: var(--white);
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.95rem;
}

td {
    padding: 1rem;
    border-bottom: 1px solid var(--gray-300);
}

tr:last-child td { border-bottom: none; }
tr:hover { background: var(--gray-100); }

/* Buttons */
.btn {
    display: inline-block;
    background: var(--accent);
    color: var(--white);
    padding: 0.875rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 200ms;
    box-shadow: 0 2px 8px rgba(255,107,0,0.3);
}

.btn:hover {
    background: #e55f00;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255,107,0,0.4);
}

.btn-secondary {
    background: var(--primary);
    box-shadow: 0 2px 8px rgba(0,102,204,0.3);
}

.btn-secondary:hover {
    background: var(--primary-dark);
    box-shadow: 0 4px 12px rgba(0,102,204,0.4);
}

/* Info Boxes */
.info-box {
    background: #e8f4ff;
    border-left: 4px solid var(--primary);
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 4px;
}

.warning-box {
    background: #fff3e0;
    border-left: 4px solid var(--accent);
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 4px;
}

.success-box {
    background: #e8f5e9;
    border-left: 4px solid var(--secondary);
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 4px;
}

/* Highlight Offer */
.highlight-offer {
    background: linear-gradient(135deg, #00c853 0%, #00a844 100%);
    padding: 2rem;
    border-radius: 12px;
    margin: 2.5rem 0;
    text-align: center;
    box-shadow: 0 4px 16px rgba(0,200,83,0.3);
}

.highlight-offer h3 {
    color: white;
    margin: 0 0 1rem;
}

.highlight-offer p {
    color: rgba(255,255,255,0.95);
    margin-bottom: 1.5rem;
}

.highlight-offer .btn {
    background: #ff6b00;
    font-size: 1.125rem;
    padding: 1rem 2.5rem;
}

.highlight-offer small {
    color: rgba(255,255,255,0.85);
    font-size: 0.85rem;
    display: block;
    margin-top: 1rem;
}

/* Company Badges */
.company-badge {
    display: inline-block;
    background: var(--secondary);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-right: 0.5rem;
}

.company-badge.speed { background: #ff6b00; }
.company-badge.free { background: #00c853; }

/* Meta Info */
.meta-info {
    display: flex;
    gap: 1.5rem;
    margin: 1rem 0 2rem;
    padding: 1rem;
    background: var(--gray-100);
    border-radius: 8px;
    font-size: 0.9rem;
    flex-wrap: wrap;
}

.meta-info strong { color: var(--primary); }

/* Steps */
.step-number {
    display: inline-block;
    background: var(--primary);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    text-align: center;
    line-height: 40px;
    font-weight: 700;
    margin-bottom: 1rem;
}

/* FAQ */
.faq-item {
    margin-bottom: 1.5rem;
    padding: 1.5rem;
    background: var(--gray-100);
    border-radius: 8px;
}

.faq-question {
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 0.75rem;
    font-size: 1.1rem;
}

.faq-answer { color: var(--gray-800); }

/* Infografías */
.infografia-container {
    margin: 2.5rem 0;
    text-align: center;
}

.infografia {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.infografia-caption {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: var(--gray-700);
    font-style: italic;
}

/* Internal Links Box - Silo Linking */
.related-content {
    background: linear-gradient(135deg, var(--gray-100) 0%, #e8f4ff 100%);
    border: 1px solid var(--gray-300);
    border-radius: 12px;
    padding: 1.5rem 2rem;
    margin: 2.5rem 0;
}

.related-content h4 {
    color: var(--dark);
    font-size: 1.1rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.related-content h4::before {
    content: '📚';
}

.related-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.75rem;
    list-style: none;
    padding: 0;
    margin: 0;
}

.related-links li {
    margin: 0;
}

.related-links a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem;
    border-radius: 6px;
    transition: all 150ms;
}

.related-links a:hover {
    background: var(--white);
    color: var(--primary-dark);
}

.related-links a::before {
    content: '→';
    color: var(--accent);
}

/* Tools Box */
.tools-box {
    background: var(--white);
    border: 2px solid var(--primary);
    border-radius: 12px;
    padding: 1.5rem 2rem;
    margin: 2.5rem 0;
}

.tools-box h4 {
    color: var(--primary);
    font-size: 1.1rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tools-box h4::before {
    content: '🧮';
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
}

.tool-card {
    background: var(--gray-100);
    padding: 1rem;
    border-radius: 8px;
    text-decoration: none;
    text-align: center;
    transition: all 200ms;
}

.tool-card:hover {
    background: var(--primary);
    transform: translateY(-2px);
}

.tool-card:hover .tool-name {
    color: var(--white);
}

.tool-name {
    color: var(--dark);
    font-weight: 600;
    font-size: 0.95rem;
}

/* Review Stars */
.review-stars {
    color: #ffc107;
    font-size: 1.2rem;
    letter-spacing: 2px;
}

.review-score {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--gray-100);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 600;
}

.review-score .score {
    color: var(--primary);
    font-size: 1.25rem;
}

/* Footer */
.footer {
    background: var(--dark);
    color: var(--gray-300);
    padding: 3rem 0 1.5rem;
    margin-top: 4rem;
}

.footer-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer h4 {
    color: var(--white);
    margin-bottom: 1rem;
}

.footer ul {
    list-style: none;
    padding: 0;
}

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

.footer a {
    color: var(--gray-300);
    text-decoration: none;
    transition: color 150ms;
}

.footer a:hover { color: var(--white); }

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

/* Hero Section (home) */
.hero {
    background: linear-gradient(135deg, #0066cc 0%, #004999 100%);
    color: var(--white);
    padding: 4rem 0 6rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="40" height="40" patternUnits="userSpaceOnUse"><path d="M 40 0 L 0 0 0 40" fill="none" stroke="rgba(255,255,255,0.08)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.4;
}

.hero-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 720px;
    margin: 0 auto;
    text-align: center;
}

.hero h1 {
    font-size: clamp(2.25rem, 5vw, 3.75rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
    line-height: 1.1;
    color: var(--white);
}

.hero p {
    font-size: 1.25rem;
    opacity: 0.95;
    margin-bottom: 2rem;
    line-height: 1.6;
}

/* Trust Badges */
.trust-badges {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
    margin-top: 2.5rem;
}

.badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    opacity: 0.9;
}

.badge-icon {
    width: 24px;
    height: 24px;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

/* Comparator Form */
.comparator {
    background: var(--white);
    border-radius: 16px;
    box-shadow: 0 20px 48px rgba(0,0,0,0.15);
    padding: 2.5rem;
    margin-top: -4rem;
    position: relative;
    z-index: 10;
    max-width: 920px;
    margin-left: auto;
    margin-right: auto;
}

.comparator h2 {
    color: var(--dark);
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    color: var(--gray-800);
    font-size: 0.95rem;
}

/* Responsive */
@media (max-width: 768px) {
    .nav { display: none; }
    .header-container { height: 64px; }
    table { font-size: 0.85rem; }
    td, th { padding: 0.75rem 0.5rem; }
    .related-links { grid-template-columns: 1fr; }
    .tools-grid { grid-template-columns: 1fr 1fr; }
    .trust-badges { gap: 1.5rem; }
}

@media (max-width: 480px) {
    .tools-grid { grid-template-columns: 1fr; }
}

/* Print */
@media print {
    .header, .footer, .related-content, .tools-box, .highlight-offer { display: none; }
    body { font-size: 12pt; }
}