/**
 * El Ninja Fluorescente - Newsletter Landing
 * Estilos principales
 */

/* ============================================
   CSS Variables
   ============================================ */
:root {
    --color-primary: #FF47C8;
    --color-primary-dark: #e03db3;
    --color-secondary: #ff6b35;
    --color-dark: #0a0a0a;
    --color-dark-lighter: #1a1a1a;
    --color-dark-card: #141414;
    --color-text: #ffffff;
    --color-text-muted: #a0a0a0;
    --color-border: #333333;
    --color-success: #00ff88;
    --color-error: #ff4757;
    
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Space Grotesk', var(--font-primary);
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 5rem;
    
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 20px;
    
    --transition: all 0.3s ease;
    --shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 30px rgba(0, 255, 136, 0.2);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    background-color: var(--color-dark);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
}

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

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

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.5rem);
}

p {
    margin-bottom: var(--spacing-sm);
}

/* ============================================
   Layout
   ============================================ */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-xxl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-header h2 {
    margin-bottom: var(--spacing-sm);
}

.section-header p {
    color: var(--color-text-muted);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   Header
   ============================================ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--spacing-md) 0;
    transition: var(--transition);
}

.site-header.scrolled {
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    padding: var(--spacing-sm) 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 60px;
    width: auto;
}

.header-cta {
    display: none;
}

@media (min-width: 768px) {
    .header-cta {
        display: block;
    }
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
    overflow: hidden;
}

.hero-video-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    overflow: hidden;
}

.hero-video-bg iframe {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100vw;
    height: 100vh;
    min-width: 177.77vh;
    min-height: 56.25vw;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        180deg,
        rgba(10, 10, 10, 0.3) 0%,
        rgba(10, 10, 10, 0.4) 50%,
        rgba(10, 10, 10, 0.6) 100%
    );
    z-index: -1;
}

.hero-content {
    max-width: 700px;
}

.hero h1 {
    margin-bottom: var(--spacing-md);
}

.hero h1 .highlight {
    color: var(--color-primary);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.hero-bullets {
    list-style: none;
    margin-bottom: var(--spacing-xl);
}

.hero-bullets li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: 1.0625rem;
}

.hero-bullets li::before {
    content: "✓";
    color: var(--color-primary);
    font-weight: 700;
    flex-shrink: 0;
}

/* ============================================
   Forms
   ============================================ */
.subscribe-form {
    background: var(--color-dark-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    max-width: 500px;
}

.form-row {
    margin-bottom: var(--spacing-md);
}

.form-row label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    font-size: 0.9375rem;
}

.form-row label .optional {
    color: var(--color-text-muted);
    font-weight: 400;
    font-size: 0.875rem;
}

.form-row input[type="email"],
.form-row input[type="text"] {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-dark);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    color: var(--color-text);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-row input[type="email"]:focus,
.form-row input[type="text"]:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 255, 136, 0.1);
}

.form-row input[type="email"]::placeholder,
.form-row input[type="text"]::placeholder {
    color: var(--color-text-muted);
}

.checkbox-row {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.checkbox-row input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    accent-color: var(--color-primary);
    cursor: pointer;
    flex-shrink: 0;
}

.checkbox-row label {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    cursor: pointer;
    margin-bottom: 0;
}

.checkbox-row label a {
    text-decoration: underline;
}

.honeypot {
    position: absolute;
    left: -9999px;
    opacity: 0;
    pointer-events: none;
}

.form-actions {
    margin-top: var(--spacing-lg);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-dark);
    width: 100%;
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.btn-primary:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.btn-primary.loading {
    position: relative;
}

.btn-secondary {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

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

.spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--color-dark);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.form-microcopy {
    text-align: center;
    margin-top: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.form-message {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    margin-bottom: var(--spacing-md);
    font-size: 0.9375rem;
    display: none;
}

.form-message.success {
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid var(--color-success);
    color: var(--color-success);
}

.form-message.error {
    background: rgba(255, 71, 87, 0.1);
    border: 1px solid var(--color-error);
    color: var(--color-error);
}

/* ============================================
   Cards Grid
   ============================================ */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.card {
    background: var(--color-dark-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    transition: var(--transition);
}

.card:hover {
    border-color: var(--color-primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.card-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    font-size: 1.5rem;
}

.card h3 {
    margin-bottom: var(--spacing-sm);
}

.card p {
    color: var(--color-text-muted);
    margin-bottom: 0;
    font-size: 0.9375rem;
}

/* ============================================
   Examples Section
   ============================================ */
.examples-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.example-card {
    background: var(--color-dark-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
}

.example-card:hover {
    border-color: var(--color-secondary);
    transform: translateY(-5px);
}

.example-card-header {
    background: linear-gradient(135deg, var(--color-secondary), #ff8c5a);
    padding: var(--spacing-md);
    color: white;
}

.example-card-header span {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.9;
}

.example-card-header h3 {
    margin-bottom: 0;
    margin-top: var(--spacing-xs);
}

.example-card-body {
    padding: var(--spacing-lg);
}

.example-card-body p {
    color: var(--color-text-muted);
    margin-bottom: 0;
}

/* ============================================
   For Who Section
   ============================================ */
.for-who-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 768px) {
    .for-who-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.for-who-column {
    background: var(--color-dark-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
}

.for-who-column.positive {
    border-color: var(--color-primary);
}

.for-who-column.negative {
    border-color: var(--color-error);
}

.for-who-column h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.for-who-column.positive h3 {
    color: var(--color-primary);
}

.for-who-column.negative h3 {
    color: var(--color-error);
}

.for-who-column ul {
    list-style: none;
}

.for-who-column ul li {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.for-who-column ul li:last-child {
    border-bottom: none;
}

.for-who-column.positive ul li::before {
    content: "✓";
    color: var(--color-primary);
    font-weight: 700;
}

.for-who-column.negative ul li::before {
    content: "✗";
    color: var(--color-error);
    font-weight: 700;
}

/* ============================================
   Author Section
   ============================================ */
.author-section {
    background: var(--color-dark-lighter);
}

.author-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--spacing-lg);
}

@media (min-width: 768px) {
    .author-content {
        flex-direction: row;
        text-align: left;
    }
}

.author-image {
    flex-shrink: 0;
}

.author-image img {
    width: 180px;
    height: auto;
    border-radius: 0;
    border: none;
    object-fit: contain;
}

.author-text h3 {
    color: var(--color-primary);
}

.author-text p {
    color: var(--color-text-muted);
    font-size: 1.0625rem;
}

/* ============================================
   CTA Section
   ============================================ */
.cta-section {
    background: linear-gradient(135deg, var(--color-dark-lighter) 0%, var(--color-dark) 100%);
    text-align: center;
}

.cta-section h2 {
    margin-bottom: var(--spacing-sm);
}

.cta-section > .container > p {
    color: var(--color-text-muted);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xl);
}

.cta-section .subscribe-form {
    margin: 0 auto;
}

/* ============================================
   FAQ Section
   ============================================ */
.faq-list {
    max-width: 700px;
    margin: 0 auto;
}

.faq-item {
    background: var(--color-dark-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    margin-bottom: var(--spacing-sm);
    overflow: hidden;
    transition: var(--transition);
}

.faq-item:hover {
    border-color: var(--color-primary);
}

.faq-question {
    padding: var(--spacing-md) var(--spacing-lg);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    transition: var(--transition);
}

.faq-question::after {
    content: "+";
    font-size: 1.5rem;
    color: var(--color-primary);
    transition: var(--transition);
}

.faq-item.open .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    display: none;
    padding: 0 var(--spacing-lg) var(--spacing-md);
    color: var(--color-text-muted);
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
    background: var(--color-dark-lighter);
    padding: var(--spacing-xl) 0;
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    text-align: center;
}

@media (min-width: 768px) {
    .footer-content {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

.footer-logo img {
    height: 30px;
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-links a {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

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

.footer-copy {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

/* ============================================
   Animations
   ============================================ */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   Utilities
   ============================================ */
.text-center {
    text-align: center;
}

.text-muted {
    color: var(--color-text-muted);
}

.mt-lg {
    margin-top: var(--spacing-lg);
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 767px) {
    .hero {
        padding-top: 80px;
        min-height: auto;
        padding-bottom: var(--spacing-xl);
    }
    
    .hero-content {
        padding-top: var(--spacing-xl);
    }
    
    .section {
        padding: var(--spacing-xl) 0;
    }
    
    .cards-grid {
        grid-template-columns: 1fr;
    }
    
    .examples-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .hero-video-bg,
    .hero-overlay,
    .site-header,
    .subscribe-form {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
}