:root {
    --color-primary: #6366f1;
    --color-primary-glow: rgba(99, 102, 241, 0.4);
    --color-bg: #0b0f1a;
    --color-surface: #161c2d;
    --color-surface-hover: #1e263b;
    --color-text: #f1f5f9;
    --color-text-muted: #94a3b8;
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-glow: rgba(99, 102, 241, 0.3);

    --font-main: 'Inter', system-ui, sans-serif;
    --font-display: 'Inter', system-ui, sans-serif;

    --radius-md: 12px;
    --radius-lg: 24px;
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.4);
}

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

body {
    font-family: var(--font-main);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

html {
    scroll-behavior: smooth;
}

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

.section-py {
    padding: 8rem 0;
}

.text-center {
    text-align: center;
}

.text-gradient {
    background: linear-gradient(135deg, #818cf8 0%, #6366f1 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Base Components */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: var(--color-primary);
    color: white;
    box-shadow: 0 4px 14px var(--color-primary-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    background: #4f46e5;
    box-shadow: 0 6px 20px var(--color-primary-glow);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.03);
    color: white;
    border: 1px solid var(--color-border);
    backdrop-filter: blur(8px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.15);
}

.btn-lg {
    padding: 1.125rem 2.5rem;
    font-size: 1.125rem;
}

/* Navigation */
.landing-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.25rem 0;
    background: rgba(11, 15, 26, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #fff 0%, #a5b4fc 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Hero Section */
.hero-section {
    padding: 12rem 0 6rem;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -10%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--color-primary-glow) 0%, transparent 70%);
    filter: blur(80px);
    z-index: -1;
    opacity: 0.5;
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.04em;
    animation: fadeInUp 0.8s ease-out;
}

.hero-subtitle {
    font-size: 1.35rem;
    color: var(--color-text-muted);
    max-width: 800px;
    margin: 0 auto 3rem;
    animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

.hero-ctas {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
    animation: fadeInUp 0.8s ease-out 0.4s backwards;
}

.hero-badge {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    animation: fadeInUp 0.8s ease-out 0.6s backwards;
}

.hero-image {
    margin-top: 5rem;
    position: relative;
    padding: 2px;
    background: linear-gradient(135deg, var(--color-border-glow), transparent 40%);
    border-radius: var(--radius-lg);
    max-width: 1000px;
    width: 100%;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 1s ease-out 0.8s backwards;
}

.image-inner {
    background: var(--color-surface);
    height: clamp(240px, 45vw, 500px);
    border-radius: calc(var(--radius-lg) - 2px);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: clamp(3rem, 8vw, 6rem);
    position: relative;
    overflow: hidden;
}

#contacto {
    scroll-margin-top: 120px;
}

.image-inner::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(11, 15, 26, 0.4) 100%);
}

/* Features Grid */
.features-section {
    background: var(--color-bg);
}

.section-header {
    margin-bottom: 5rem;
}

.section-title {
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature-card {
    padding: 3rem;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-border-glow);
    background: var(--color-surface-hover);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    width: 64px;
    height: 64px;
    background: rgba(99, 102, 241, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

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

/* Offer Section */
.offer-section {
    padding: 10rem 0;
}

.offer-card {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    padding: 6rem;
    border-radius: 48px;
    position: relative;
    overflow: hidden;
    border: 1px solid var(--color-border);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.offer-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, var(--color-primary-glow) 0%, transparent 70%);
    filter: blur(40px);
}

.offer-badge {
    background: rgba(99, 102, 241, 0.15);
    color: #a5b4fc;
    padding: 0.5rem 1.25rem;
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid rgba(99, 102, 241, 0.3);
    margin-bottom: 2.5rem;
    display: inline-block;
}

.offer-card h2 {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 2rem;
    letter-spacing: -0.04em;
    margin-left: auto;
    margin-right: auto;
    max-width: 900px;
}

.offer-list {
    list-style: none;
    max-width: 500px;
    margin: 0 auto 4rem;
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    width: 100%;
}

.offer-list li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    font-size: 1.1rem;
}

.offer-list li::before {
    content: '✓';
    color: var(--color-primary);
    font-weight: 900;
    flex-shrink: 0;
    margin-top: 2px;
}

/* Contact Form */
.contact-section {
    padding: 8rem 0;
    background: var(--color-surface);
}

.contact-card {
    background: var(--color-bg);
    padding: 4rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    margin-top: 4rem;
    box-shadow: var(--shadow-lg);
}

.form-group {
    margin-bottom: 2rem;
    text-align: left;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--color-text-muted);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: white;
    font-size: 1rem;
    transition: border-color 0.2s, background 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    background: rgba(255, 255, 255, 0.05);
}

/* Footer */
.footer {
    padding: 6rem 0 4rem;
    border-top: 1px solid var(--color-border);
    color: var(--color-text-muted);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Mobile Responsiveness */
@media (max-width: 992px) {
    .container {
        max-width: 960px;
    }

    .hero-title {
        font-size: 3.5rem;
    }

    .hero-section {
        padding: 10rem 0 4rem;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1.5rem;
        max-width: 720px;
    }

    .landing-nav {
        padding: 0.9rem 0;
    }

    .nav-content {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-links {
        width: 100%;
        justify-content: center;
    }

    .hero-title {
        font-size: 2.75rem;
    }

    .section-title {
        font-size: 2.1rem;
    }

    .hero-subtitle {
        font-size: 1.15rem;
    }

    .hero-ctas {
        flex-direction: column;
        gap: 1rem;
    }

    .hero-ctas .btn {
        width: 100%;
    }

    .hero-image {
        margin-top: 3rem;
    }

    .offer-card {
        padding: 4rem 1.5rem;
    }

    .offer-card h2 {
        font-size: 2.25rem;
    }

    .offer-list li {
        font-size: 1rem;
    }

    .section-py {
        padding: 5rem 0;
    }

    .feature-card {
        padding: 2rem;
    }

    .contact-card {
        padding: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.25rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .logo {
        font-size: 1.25rem;
    }

    .btn {
        padding: 0.75rem 1.25rem;
    }

    .btn-lg {
        width: 100%;
        font-size: 1rem;
    }

    .contact-card {
        margin-top: 2.5rem;
    }
}