/* ==========================================================================
   Visible Online Digital — CSS Global
   Colores, tipografia y componentes reutilizables
   ========================================================================== */

:root {
    --color-primary: #D2600F;
    --color-primary-hover: #ef7925;
    --color-primary-light: #fce2cf;
    --color-secondary: #fce2cf;
    --color-dark: #2B2E3C;
    --color-dark-light: #3d4155;
    --color-bg: #FFF8F0;
    --color-bg-card: #f2ebe3;
    --color-accent: #e2c8b5;
    --color-white: #ffffff;
    --color-success: #2d7a3a;
    --color-error: #c0392b;
    --font-main: 'Montserrat', sans-serif;
    --radius: 0.75rem;
    --radius-sm: 0.5rem;
    --shadow: 0 4px 20px rgba(43, 46, 60, 0.1);
    --shadow-lg: 0 8px 30px rgba(43, 46, 60, 0.15);
    --max-width: 1140px;
    --transition: 0.3s ease;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-main);
    background-color: var(--color-bg);
    color: var(--color-dark);
    line-height: 1.7;
    letter-spacing: -0.01em;
    font-size: 1rem;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-primary-hover); }

/* ==========================================================================
   Tipografia
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
    line-height: 1.25;
    font-weight: 700;
    color: var(--color-dark);
}
h1 { font-size: 2.75rem; margin-bottom: 1.5rem; }
h2 { font-size: 2rem; margin-bottom: 1rem; }
h3 { font-size: 1.35rem; margin-bottom: 0.75rem; }
p { margin-bottom: 1rem; }

/* ==========================================================================
   Layout
   ========================================================================== */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 5rem 0;
}

.section--white { background: var(--color-white); }
.section--bg { background: var(--color-bg); }
.section--secondary { background: var(--color-secondary); }
.section--dark {
    background: linear-gradient(135deg, var(--color-dark) 0%, #1a1c24 100%);
    color: var(--color-white);
}
.section--dark h2, .section--dark h3 { color: var(--color-white); }

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

/* ==========================================================================
   Header / Navegacion
   ========================================================================== */
.header {
    padding: 1rem 0;
    background: var(--color-white);
    box-shadow: var(--shadow);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
}

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

.logo {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
}

.nav { display: flex; align-items: center; gap: 1.75rem; }

.nav a {
    color: var(--color-dark);
    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: none;
    transition: color var(--transition);
}

.nav a:hover, .nav a.active { color: var(--color-primary); }

.nav .btn-nav {
    background: var(--color-primary);
    color: var(--color-white);
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
}

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

/* Mobile menu */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-dark);
    margin: 5px 0;
    transition: var(--transition);
}

/* ==========================================================================
   Botones
   ========================================================================== */
.btn {
    display: inline-block;
    padding: 0.9rem 2rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-main);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    border: none;
    text-align: center;
    text-decoration: none;
}

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

.btn--primary:hover {
    background: var(--color-primary-hover);
    color: var(--color-white);
    transform: translateY(-2px);
}

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

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

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

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

.btn--lg { padding: 1.1rem 2.5rem; font-size: 1.1rem; }

/* ==========================================================================
   Cards
   ========================================================================== */
.card {
    background: var(--color-white);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.card--accent { border-left: 4px solid var(--color-primary); }

.card h3 { margin-bottom: 0.75rem; }

/* ==========================================================================
   Grid
   ========================================================================== */
.grid { display: grid; gap: 2rem; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    padding-top: 9rem;
    background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-secondary) 100%);
}

.hero h1 span { color: var(--color-primary); }

.hero p.subtitle {
    font-size: 1.2rem;
    opacity: 0.85;
    margin-bottom: 2rem;
    max-width: 560px;
}

/* ==========================================================================
   Testimonios
   ========================================================================== */
.testimonial {
    background: var(--color-white);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    position: relative;
}

.testimonial::before {
    content: "\201C";
    font-size: 4rem;
    color: var(--color-primary);
    opacity: 0.2;
    position: absolute;
    top: 0.5rem;
    left: 1rem;
    line-height: 1;
}

.testimonial p { font-style: italic; margin-bottom: 1rem; padding-top: 1rem; }

.testimonial cite {
    font-style: normal;
    font-weight: 600;
    color: var(--color-primary);
    font-size: 0.9rem;
}

/* ==========================================================================
   FAQ
   ========================================================================== */
.faq-item {
    border-bottom: 1px solid var(--color-accent);
    padding: 1.5rem 0;
}

.faq-item summary {
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-item summary::after { content: "+"; font-size: 1.5rem; color: var(--color-primary); }
.faq-item[open] summary::after { content: "−"; }
.faq-item .faq-answer { padding-top: 1rem; opacity: 0.85; }

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    background: var(--color-dark);
    color: var(--color-white);
    padding: 3rem 0 1.5rem;
}

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

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

.footer h4 { font-size: 1rem; margin-bottom: 1rem; color: var(--color-white); }

.footer p, .footer li {
    font-size: 0.9rem;
    opacity: 0.8;
    line-height: 1.8;
}

.footer ul { list-style: none; }

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    opacity: 0.6;
}

/* ==========================================================================
   Formularios
   ========================================================================== */
.form-group { margin-bottom: 1.25rem; }

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--color-accent);
    border-radius: var(--radius-sm);
    font-family: var(--font-main);
    font-size: 1rem;
    transition: border-color var(--transition), box-shadow var(--transition);
    background: var(--color-bg);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(210, 96, 15, 0.15);
}

.form-group textarea { resize: vertical; min-height: 100px; }

/* ==========================================================================
   Utilidades
   ========================================================================== */
.sr-only {
    position: absolute; width: 1px; height: 1px;
    padding: 0; margin: -1px; overflow: hidden;
    clip: rect(0,0,0,0); border: 0;
}

.badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    border-radius: 2rem;
    font-size: 0.85rem;
    font-weight: 600;
}

.badge--primary { background: var(--color-primary-light); color: var(--color-primary); }

/* ==========================================================================
   Pricing / Paquetes
   ========================================================================== */
.grid--pricing {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.card--pricing {
    background: var(--color-white);
    padding: 2.25rem 1.75rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: all var(--transition);
    border: 2px solid transparent;
    position: relative;
    display: flex;
    flex-direction: column;
}

.card--pricing:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.card--pricing-free {
    background: linear-gradient(135deg, var(--color-primary-light) 0%, #fce2cf 100%);
    border-color: var(--color-primary);
    position: relative;
    box-shadow: 0 6px 20px rgba(210, 96, 15, 0.2);
}

.card--pricing-free:hover {
    box-shadow: 0 10px 30px rgba(210, 96, 15, 0.3);
}

.card--pricing-highlight {
    border: 2px solid var(--color-primary);
    background: var(--color-white);
    box-shadow: 0 8px 30px rgba(210, 96, 15, 0.15);
    transform: scale(1.02);
}

.card--pricing-highlight:hover {
    transform: scale(1.02) translateY(-6px);
    box-shadow: 0 12px 40px rgba(210, 96, 15, 0.25);
}

.pricing-badge {
    display: inline-block;
    background: var(--color-primary);
    color: var(--color-white);
    padding: 0.35rem 0.85rem;
    border-radius: 3rem;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
    width: fit-content;
}

.pricing-badge--free {
    background: var(--color-primary);
    color: var(--color-white);
}

.pricing-badge--popular {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-hover) 100%);
}

.card--pricing h3 {
    font-size: 1.4rem;
    margin-bottom: 1.25rem;
}

.pricing-amount {
    margin-bottom: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.price-tag {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
}

.price-period {
    font-size: 0.9rem;
    color: var(--color-dark);
    opacity: 0.7;
    margin-top: 0.35rem;
}

.pricing-description {
    font-size: 0.95rem;
    color: var(--color-dark);
    margin-bottom: 1.5rem;
    opacity: 0.85;
}

.pricing-features {
    list-style: none;
    margin-bottom: 1.75rem;
    flex-grow: 1;
}

.pricing-features li {
    padding: 0.5rem 0;
    padding-left: 1.75rem;
    position: relative;
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--color-dark);
}

.pricing-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
    font-size: 1.1rem;
}

.btn--full {
    width: 100%;
    padding: 1rem 1.5rem;
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 968px) {
    h1 { font-size: 2.25rem; }
    h2 { font-size: 1.75rem; }

    .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
    .grid--pricing { grid-template-columns: repeat(2, 1fr); }

    .card--pricing-highlight { transform: scale(1); }
    .card--pricing-highlight:hover { transform: translateY(-6px); }

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

    .nav { display: none; }
    .nav.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-white);
        padding: 1.5rem 2rem;
        box-shadow: var(--shadow);
        gap: 1rem;
    }
    .menu-toggle { display: block; }

    .hero { min-height: auto; padding: 7rem 0 4rem; }
}

@media (max-width: 600px) {
    h1 { font-size: 1.75rem; }
    .section { padding: 3.5rem 0; }
    .container { padding: 0 1.25rem; }
    .grid--pricing { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; gap: 0.5rem; text-align: center; }
    .price-tag { font-size: 1.75rem; }
}