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

:root {
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-bg: #ffffff;
    --color-bg-alt: #f9fafb;
    --color-border: #e5e7eb;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Dark mode */
[data-theme="dark"] {
    --color-primary: #3b82f6;
    --color-primary-hover: #60a5fa;
    --color-text: #f9fafb;
    --color-text-light: #9ca3af;
    --color-bg: #111827;
    --color-bg-alt: #1f2937;
    --color-border: #374151;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
}

.container {
    width: 100%;
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
h1, h2, h3 {
    font-weight: 600;
    line-height: 1.3;
}

h1 {
    font-size: 2rem;
}

h2 {
    font-size: 1.5rem;
    margin-bottom: 24px;
}

h3 {
    font-size: 1.25rem;
    margin-bottom: 8px;
}

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

a:hover {
    text-decoration: underline;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
}

.btn:hover {
    text-decoration: none;
}

.btn:active {
    transform: scale(0.98);
}

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

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

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

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

/* Focus visible for accessibility */
.btn:focus-visible,
.theme-toggle:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.form-group input:focus-visible,
.form-group textarea:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 1px;
}

a:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
    border-radius: 2px;
}

/* Header */
.header {
    padding: 20px 0;
    position: sticky;
    top: 0;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    z-index: 100;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
}

.logo:hover {
    text-decoration: none;
}

.logo-icon {
    flex-shrink: 0;
    color: var(--color-primary);
}

.nav {
    display: flex;
    gap: 24px;
    align-items: center;
}

/* Theme toggle */
.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-light);
    transition: color 0.2s, background-color 0.2s;
}

.theme-toggle:hover {
    color: var(--color-text);
    background-color: var(--color-bg-alt);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
}

.theme-toggle .icon-sun {
    display: none;
}

.theme-toggle .icon-moon {
    display: block;
}

[data-theme="dark"] .theme-toggle .icon-sun {
    display: block;
}

[data-theme="dark"] .theme-toggle .icon-moon {
    display: none;
}

.nav a {
    color: var(--color-text-light);
    font-size: 0.9rem;
}

.nav a:hover {
    color: var(--color-text);
    text-decoration: none;
}

/* Hero */
.hero {
    padding: 80px 0;
    text-align: center;
}

.hero h1 {
    margin-bottom: 20px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: 32px;
}

/* Productos */
.productos {
    padding: 80px 0;
    background-color: var(--color-bg-alt);
}

.productos h2 {
    text-align: center;
    margin-bottom: 48px;
}

.productos-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    margin-bottom: 48px;
}

.producto-card {
    background-color: var(--color-bg);
    padding: 32px;
    border-radius: 12px;
    border: 1px solid var(--color-border);
}

.producto-tag {
    display: inline-block;
    font-size: 0.875rem;
    color: var(--color-primary);
    margin-bottom: 12px;
}

.producto-card p {
    color: var(--color-text-light);
    margin-bottom: 16px;
}

.producto-link {
    font-size: 0.9rem;
    font-weight: 500;
}

.producto-soon {
    font-size: 0.875rem;
    color: var(--color-text-light);
    font-style: italic;
}

.productos-cierre {
    text-align: center;
    color: var(--color-text-light);
    font-size: 0.9rem;
}

/* Contacto */
.contacto {
    padding: 80px 0;
}

.contacto h2 {
    text-align: center;
}

.contacto-intro {
    text-align: center;
    color: var(--color-text-light);
    margin-bottom: 48px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.contacto-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
    max-width: 600px;
    margin: 0 auto;
}

.contacto-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    padding: 12px 16px;
    font-size: 1rem;
    font-family: var(--font-family);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    transition: border-color 0.2s, background-color 0.2s;
    background-color: var(--color-bg);
    color: var(--color-text);
}

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

.form-group textarea {
    resize: vertical;
}

.contacto-alternativo {
    text-align: center;
    padding: 32px;
    background-color: var(--color-bg-alt);
    border-radius: 12px;
}

.contacto-alternativo p {
    margin-bottom: 16px;
    color: var(--color-text-light);
}

/* Sobre nosotros */
.sobre-nosotros {
    padding: 80px 0;
    background-color: var(--color-bg-alt);
    text-align: center;
}

.sobre-nosotros p {
    color: var(--color-text-light);
    max-width: 500px;
    margin: 0 auto;
}

/* Footer */
.footer {
    padding: 48px 0 24px;
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 32px;
}

.footer-info p {
    color: var(--color-text-light);
    font-size: 0.9rem;
    margin-bottom: 4px;
}

.footer-info a {
    color: var(--color-text-light);
}

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

.footer-links {
    display: flex;
    gap: 8px;
    font-size: 0.9rem;
}

.footer-links a {
    color: var(--color-text-light);
}

.footer-links .separator {
    color: var(--color-text-light);
}

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

/* Responsive - Tablet */
@media (min-width: 640px) {
    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    .hero {
        padding: 120px 0;
    }

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

    .productos-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-content {
        flex-direction: row;
        justify-content: space-between;
        align-items: flex-start;
    }
}

/* Responsive - Desktop */
@media (min-width: 1024px) {
    h1 {
        font-size: 3rem;
    }

    .hero h1 {
        max-width: 700px;
    }

    .productos-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .contacto-grid {
        grid-template-columns: 2fr 1fr;
        max-width: 800px;
        align-items: start;
    }

    .contacto-alternativo {
        position: sticky;
        top: 120px;
    }
}

/* Form success state */
.form-success {
    text-align: center;
    padding: 32px;
    background-color: var(--color-bg-alt);
    border-radius: 12px;
}

.form-success p {
    color: var(--color-text);
    margin-bottom: 8px;
}

.form-success span {
    color: var(--color-text-light);
    font-size: 0.9rem;
}