:root {
    /* Paleta de colores principal */
    --color-primary-dark: #256C68;
    --color-primary: #3a7bd5;
    --color-primary-light: #49C1BB;
    --color-primary-lighter: #76D0CC;
    --color-secondary: #00d2ff;

    /* Color CTA */
    --color-cta: #4c9f70;

    /* Texto y fondos */
    --color-text: #2d3748;
    --color-text-light: #718096;
    --color-background: #ffffff;
    --color-gray-100: #f7f7f7;
    --color-gray-200: #e9e9e9;

    /* Fuentes */
    --font-primary: 'Inter', sans-serif;
}

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

body {
    font-family: var(--font-primary);
    color: var(--color-text);
    line-height: 1.6;
}

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

/* Botones */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--color-cta);
    color: white;
}

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

.btn-outline-white {
    border: 2px solid var(--color-gray-200);
    color: var(--color-gray-100);
}

/* Header y Navegación */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--color-background);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.nav-container .logo img {
    height: 42px;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
}

.nav-auth {
    display: flex;
    gap: 1rem;
}

/* Responsive */
.mobile-menu-btn {
    display: none;
}

@media (max-width: 768px) {
    .nav-links, .nav-auth {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
        background: none;
        border: none;
        cursor: pointer;
    }

    .mobile-menu-btn span {
        display: block;
        width: 25px;
        height: 3px;
        background: var(--color-text);
        margin: 5px 0;
        transition: all 0.3s ease;
    }
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #25456c, #76D0CC);
    margin-bottom: -276px;
    padding: 6rem 0;
    color: white;
    overflow: hidden;
}

.hero-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 2rem;
}

.storage-info {
    font-size: 1.1rem;
    opacity: 0.8;
}

.hero-image {
    max-width: 900px;
    margin: 3rem auto -6rem;
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
    border-radius: 12px;
    overflow: hidden;
}

.hero-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* Features Section */
.features {
    padding: calc(276px + 4rem) 0 4rem 0;
    background: var(--color-gray-100);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
    margin-top: 2rem;
}

.feature-item {
    text-align: center;
    padding: 2rem;
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: #60ABB2;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
}

.feature-item h3 {
    margin-bottom: 1rem;
    color: var(--color-text);
}

.feature-item p {
    color: var(--color-text-light);
}

/* Get Started Section */
.get-started {
    padding: 4rem 0;
    text-align: center;
}

.get-started h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--color-text);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 4rem 0;
}

.step {
    padding: 2rem;
    position: relative;
}

.step-number {
    width: 40px;
    height: 40px;
    background: #60ABB2;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-weight: bold;
}

.get-started-cta {
    margin-top: 3rem;
}

.terms-note {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: var(--color-text-light);
}

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

.terms-note a:hover {
    text-decoration: underline;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 3rem;
    }

    .hero-subtitle {
        font-size: 1.25rem;
    }

    .hero-image {
        margin: 2rem -2rem -6rem;
        border-radius: 0;
    }
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
}

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

/* Footer Styles */
.main-footer {
    background: #143053;
    color: #ffffff;
    padding: 4rem 0 2rem;
}

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

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.brand-col {
    max-width: 400px;
}

.footer-logo {
    height: 40px;
    margin-bottom: 1.5rem;
}

.brand-col p {
    color: #a5b4fc;
    margin-bottom: 2rem;
    font-size: 0.95rem;
    line-height: 1.7;
}

.footer-col h4 {
    color: #ffffff;
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 0.75rem;
}

.footer-col ul li a {
    color: #a5b4fc;
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.3s ease;
}

.footer-col ul li a:hover {
    color: #ffffff;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    background: rgba(165, 180, 252, 0.1);
    color: #a5b4fc;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: #a5b4fc;
    color: #1a1f36;
    transform: translateY(-2px);
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(165, 180, 252, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #a5b4fc;
    font-size: 0.9rem;
}

.footer-bottom-links {
    display: flex;
    gap: 2rem;
}

.footer-bottom-links a {
    color: #a5b4fc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-bottom-links a:hover {
    color: #ffffff;
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }

    .brand-col {
        grid-column: 1 / -1;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .footer-bottom-links {
        justify-content: center;
    }
}

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