/* Variables CSS basadas en la paleta de la app */
:root {
    --primary-bg: #121212;
    --secondary-bg: #1E1E1E;
    --accent-color: #fa9154;
    --accent-hover: #e8854b;
    --text-primary: #FAFAFA;
    --text-secondary: #666666;
    --text-muted: #999999;
    --border-color: #333333;
    --card-shadow: rgba(0, 0, 0, 0.3);
    --gradient: linear-gradient(135deg, #fa9154 0%, #e8854b 100%);
    --gradient-reverse: linear-gradient(135deg, #e8854b 0%, #fa9154 100%);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--primary-bg);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header */
header {
    padding: 1rem 0;
    background: rgba(30, 30, 30, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

header.scrolled {
    background: rgba(18, 18, 18, 0.98);
    box-shadow: 0 4px 20px var(--card-shadow);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: transform 0.3s ease;
}

.logo:hover .logo-icon {
    transform: scale(1.1);
}

/* Hero Section */
.hero {
    padding: 8rem 0 6rem;
    text-align: center;
    position: relative;
    background: linear-gradient(135deg, var(--primary-bg) 0%, rgba(250, 145, 84, 0.05) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="20" height="20" patternUnits="userSpaceOnUse"><path d="M 20 0 L 0 0 0 20" fill="none" stroke="%23333333" stroke-width="0.5" opacity="0.3"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>') center/80px;
    opacity: 0.4;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(250, 145, 84, 0.1);
    color: var(--accent-color);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 2rem;
    border: 1px solid rgba(250, 145, 84, 0.2);
    transition: all 0.3s ease;
}

.hero-badge:hover {
    background: rgba(250, 145, 84, 0.15);
    transform: translateY(-2px);
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    color: var(--text-primary);
}

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

.hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Phone Mockup */
.hero-image {
    margin-top: 4rem;
    display: flex;
    justify-content: center;
}

.phone-mockup {
    width: 280px;
    height: 560px;
    background: var(--secondary-bg);
    border-radius: 30px;
    padding: 20px;
    box-shadow: 0 20px 60px var(--card-shadow);
    position: relative;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--primary-bg);
    border-radius: 20px;
    overflow: hidden;
    position: relative;
}

.app-preview {
    padding: 20px;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.app-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 30px;
    color: var(--accent-color);
    font-weight: 600;
}

.app-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.meal-card {
    background: var(--secondary-bg);
    padding: 15px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

/* Features Section */
.features {
    padding: 8rem 0;
    background: var(--secondary-bg);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

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

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--primary-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2.5rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(30px);
}

.feature-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px var(--card-shadow);
    border-color: var(--accent-color);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2rem;
    transition: transform 0.3s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Tech Stack */
.tech-stack {
    padding: 8rem 0;
    background: var(--primary-bg);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.tech-item {
    background: var(--secondary-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    opacity: 0;
    transform: scale(0.9);
}

.tech-item.visible {
    opacity: 1;
    transform: scale(1);
}

.tech-item:hover {
    border-color: var(--accent-color);
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 35px var(--card-shadow);
}

.tech-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: white;
    font-size: 1.5rem;
    transition: transform 0.3s ease;
}

.tech-item:hover .tech-icon {
    transform: rotate(360deg) scale(1.1);
}

.tech-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.tech-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* CTA Section */
.cta {
    padding: 8rem 0;
    background: var(--gradient);
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: rotate 20s infinite linear;
}

@keyframes rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.cta p {
    font-size: 1.125rem;
    margin-bottom: 3rem;
    opacity: 0.95;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1.25rem 2.5rem;
    border-radius: 15px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-primary:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
}

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

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

/* Floating Elements */
.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.floating-element {
    position: absolute;
    font-size: 2rem;
    animation: floatRandom 8s infinite ease-in-out;
    opacity: 0.6;
}

.floating-element:nth-child(1) { animation-delay: 0s; }
.floating-element:nth-child(2) { animation-delay: 2s; }
.floating-element:nth-child(3) { animation-delay: 4s; }
.floating-element:nth-child(4) { animation-delay: 6s; }

@keyframes floatRandom {
    0%, 100% { 
        transform: translateY(0px) rotate(0deg); 
        opacity: 0.6; 
    }
    25% { 
        transform: translateY(-20px) rotate(5deg); 
        opacity: 0.8; 
    }
    50% { 
        transform: translateY(-40px) rotate(-3deg); 
        opacity: 1; 
    }
    75% { 
        transform: translateY(-15px) rotate(8deg); 
        opacity: 0.7; 
    }
}

/* Footer */
footer {
    padding: 3rem 0;
    background: var(--secondary-bg);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-content p {
    color: var(--text-secondary);
    margin: 0;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-link:hover {
    color: var(--accent-color);
    transform: translateY(-2px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }

    .hero {
        padding: 6rem 0 4rem;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero p {
        font-size: 1.125rem;
    }

    .phone-mockup {
        width: 240px;
        height: 480px;
        padding: 15px;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .feature-card {
        padding: 2rem;
    }

    .tech-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }

    .cta h2 {
        font-size: 2rem;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
    }

    .floating-element {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .feature-card, .tech-item {
        padding: 1.5rem;
    }

    .phone-mockup {
        width: 200px;
        height: 400px;
    }
}

/* Scroll animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

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

/* Smooth scrolling for older browsers */
@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}