/* ===== MODERN HOME - ANIMACIONES Y ESTILOS ESPECÍFICOS ===== */

/* Animaciones de entrada */
@keyframes fade-up {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes pulse-soft {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.85; }
}

/* Clases de animación para scroll - contenido siempre visible, animación suave */
.animate-on-scroll {
    opacity: 1;
    transform: translateY(24px);
    transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.animate-on-scroll.stagger-1 { transition-delay: 0.1s; }
.animate-on-scroll.stagger-2 { transition-delay: 0.2s; }
.animate-on-scroll.stagger-3 { transition-delay: 0.3s; }
.animate-on-scroll.stagger-4 { transition-delay: 0.4s; }
.animate-on-scroll.stagger-5 { transition-delay: 0.5s; }
.animate-on-scroll.stagger-6 { transition-delay: 0.6s; }

/* Hero moderno */
.hero-modern {
    position: relative;
    min-height: 85vh;
    display: flex;
    align-items: center;
    padding: 6rem 0 5rem;
    overflow: hidden;
}

.hero-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-hero);
    background-size: 200% 200%;
    animation: gradient-shift 15s ease infinite;
    z-index: -2;
}

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

@media (min-width: 1024px) {
    .hero-modern .hero-content {
        grid-template-columns: 1fr 1fr;
        gap: 4rem;
    }
}

.hero-modern .hero-text {
    order: 1;
}

.hero-modern .hero-visual {
    order: 2;
}

.hero-modern .hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-modern .hero-title.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-modern .hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 2rem;
    font-weight: 500;
}

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

.hero-modern .hero-actions .btn {
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.hero-modern .hero-actions .btn:hover {
    transform: translateY(-3px) scale(1.02);
}

.hero-modern .hero-illustration {
    position: relative;
    animation: float 6s ease-in-out infinite;
}

.hero-modern .hero-illustration img {
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
    display: block;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl), 0 0 40px rgba(92, 74, 61, 0.15);
}

/* Sección unificada: Cómo funciona Katphi */
.how-it-works {
    padding: 5rem 0;
    background: var(--bg-secondary);
}

.how-it-works .section-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.how-it-works .section-title {
    text-align: left;
    margin-bottom: 3rem;
}

@media (min-width: 768px) {
    .how-it-works .section-title {
        font-size: clamp(2rem, 4vw, 2.75rem);
    }
}

.how-it-works-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 768px) {
    .how-it-works-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (min-width: 1024px) {
    .how-it-works-grid {
        grid-template-columns: 1fr 1fr 1fr;
    }
}

.how-it-works-card {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: 2rem;
    border: 1px solid var(--border-light);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-fast);
}

.how-it-works-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary-light);
}

.how-it-works-card .feature-icon {
    width: 3rem;
    height: 3rem;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    color: white;
    border: none;
}

.how-it-works-card .feature-icon svg {
    width: 1.5rem;
    height: 1.5rem;
    stroke: white;
}

.how-it-works-card h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.how-it-works-card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin: 0;
}

/* AI block integrado */
.ai-block {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    background: var(--bg-primary);
    border-radius: var(--radius-2xl);
    padding: 2.5rem;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-md);
}

@media (min-width: 1024px) {
    .ai-block {
        grid-template-columns: 1fr 1fr;
        padding: 3rem;
    }
}

.ai-block .ai-text h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.ai-block .ai-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.ai-block .ai-features {
    list-style: none;
    padding: 0;
    margin: 0;
}

.ai-block .ai-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.ai-block .ai-features li::before {
    content: '✓';
    color: var(--color-primary);
    font-weight: 700;
}

.ai-block .ai-demo {
    max-width: 100%;
}

.ai-block .ai-chat-window {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
}

.ai-block .ai-chat-header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-light);
}

.ai-block .ai-chat-title {
    color: var(--text-primary);
}

.ai-block .ai-message.ai-user {
    background: var(--border-light);
    color: var(--text-primary);
}

.ai-block .ai-message.ai-assistant {
    background: var(--bg-primary);
    color: var(--text-secondary);
    border: 1px solid var(--border-light);
}

/* Social proof compacto */
.social-proof-compact {
    padding: 3rem 0;
    background: var(--bg-dark);
    color: white;
}

.social-proof-compact .section-title {
    color: white;
    margin-bottom: 2rem;
}

.social-badges {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
}

.social-badge {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-xl);
    transition: background var(--transition-fast), transform var(--transition-fast);
}

.social-badge:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-2px);
}

.social-badge-icon {
    width: 2.5rem;
    height: 2.5rem;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.social-badge-icon svg {
    width: 1.25rem;
    height: 1.25rem;
    stroke: white;
}

.social-badge-text h4 {
    font-size: 0.9375rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: white;
}

.social-badge-text p {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
}

/* Sección producto / mockups */
.product-preview {
    padding: 5rem 0;
    background: var(--bg-secondary);
}

.product-preview .section-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.product-preview .section-title {
    color: var(--text-primary);
}

.mockup-stack {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    max-width: 900px;
    margin: 3rem auto 0;
}

@media (min-width: 768px) {
    .mockup-stack {
        grid-template-columns: repeat(3, 1fr);
        gap: 2rem;
    }
}

.mockup-card {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.mockup-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl), 0 0 0 1px rgba(99, 102, 241, 0.1);
}

.mockup-card .ai-chat-window {
    border: 1px solid var(--border-light);
    box-shadow: none;
    background: var(--bg-secondary);
}

.mockup-card .ai-chat-header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-light);
}

.mockup-card .ai-chat-title {
    color: var(--text-primary);
}

.mockup-card .ai-message {
    color: var(--text-primary);
}

.mockup-card .ai-message.ai-assistant {
    color: var(--text-secondary);
}

.mockup-card p {
    color: var(--text-secondary);
}

/* CTA final mejorado */
.final-cta-modern {
    padding: 5rem 0;
    background: var(--gradient-dark);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.final-cta-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at 50% 0%, rgba(99, 102, 241, 0.2) 0%, transparent 60%);
    pointer-events: none;
}

.final-cta-modern .cta-content h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: 1rem;
    color: white;
}

.final-cta-modern .cta-content p {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 2rem;
}

.final-cta-modern .cta-actions .btn-primary {
    background: white;
    color: var(--color-primary);
    border: none;
}

.final-cta-modern .cta-actions .btn-primary:hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

.final-cta-modern .cta-actions .btn-outline {
    border-color: rgba(255, 255, 255, 0.5);
    color: white;
}

.final-cta-modern .cta-actions .btn-outline:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: white;
    color: white;
}

/* Plugin cards con tilt */
.plugins-teaser .plugin-card {
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-fast);
    transform-style: preserve-3d;
}

.plugins-teaser .plugin-card:hover {
    transform: translateY(-8px) perspective(1000px) rotateX(2deg);
    box-shadow: var(--shadow-xl), 0 0 0 1px rgba(92, 74, 61, 0.1);
    border-color: transparent;
}

.plugins-teaser .plugin-icon {
    background: var(--gradient-primary);
    border: none;
    color: white;
}

.plugins-teaser .plugin-icon svg {
    stroke: white;
}

.plugins-teaser .plugin-badge {
    background: var(--color-primary);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
}

/* Transiciones entre secciones */
.section-card {
    background: white;
    border-radius: var(--radius-2xl);
    padding: 4rem 2rem;
    margin: 0 1rem 2rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
}

@media (min-width: 768px) {
    .section-card {
        margin: 0 2rem 3rem;
        padding: 4rem 3rem;
    }
}

/* Nav link underline animado */
.nav-menu a {
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-normal);
}

.nav-menu a:hover::after {
    width: 100%;
}