/* =============================================
   VARIABLES Y RESET
   ============================================= */

:root {
    /* Colores principales */
    --color-primary: #1a3a5c;          /* Azul petróleo oscuro */
    --color-primary-dark: #0f2a45;
    --color-primary-light: #2a5a8c;
    --color-accent: #25d366;           /* Verde WhatsApp */
    --color-accent-dark: #1ebe57;
    --color-accent-hover: #20c05c;

    /* Neutros */
    --color-white: #ffffff;
    --color-bg: #ffffff;
    --color-bg-alt: #f7f8fa;
    --color-text: #2c3e50;
    --color-text-light: #6b7c93;
    --color-text-muted: #94a3b8;
    --color-border: #e2e8f0;
    --color-border-light: #f1f5f9;

    /* Estado */
    --color-success: #10b981;
    --color-error: #ef4444;

    /* Tipografía */
    --font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;

    /* Espaciado */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;

    /* Layout */
    --container-max: 1100px;
    --container-narrow: 760px;
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;

    /* Sombras */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 12px 40px rgba(0, 0, 0, 0.12);

    /* Transiciones */
    --transition: 0.2s ease;
    --transition-slow: 0.35s ease;
}

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

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    line-height: var(--line-height-base);
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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-light);
}

ul, ol {
    list-style: none;
}

/* =============================================
   UTILIDADES
   ============================================= */

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.container--narrow {
    max-width: var(--container-narrow);
}

.required {
    color: var(--color-error);
}

/* =============================================
   BOTONES
   ============================================= */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 0.75rem 1.5rem;
    font-family: var(--font-family);
    font-size: 0.938rem;
    font-weight: 600;
    line-height: 1.4;
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.btn:focus-visible {
    outline: 3px solid var(--color-primary-light);
    outline-offset: 2px;
}

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

.btn--primary:hover {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: var(--color-white);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

.btn--outline:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-1px);
}

.btn--whatsapp {
    background-color: var(--color-accent);
    color: var(--color-white);
    border-color: var(--color-accent);
}

.btn--whatsapp:hover {
    background-color: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    color: var(--color-white);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn--lg {
    padding: 0.938rem 2rem;
    font-size: 1.05rem;
}

.btn--block {
    width: 100%;
}

/* =============================================
   TOPBAR
   ============================================= */

.topbar {
    background: linear-gradient(-45deg, #0f2a45, #1a3a5c, #1e4d6e, #163050);
    background-size: 300% 300%;
    animation: gradientShift 12s ease infinite;
    color: var(--color-white);
    text-align: center;
    padding: var(--space-sm) var(--space-md);
    font-size: 0.813rem;
    font-weight: 500;
    letter-spacing: 0.02em;
}

/* =============================================
   HEADER
   ============================================= */

.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border-light);
    transition: box-shadow var(--transition);
}

.header--scrolled {
    box-shadow: var(--shadow-sm);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.header__logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.header__logo:hover {
    opacity: 0.85;
}

.header__logo-img {
    height: 42px;
    width: auto;
    object-fit: contain;
}

.header__nav {
    display: flex;
    gap: var(--space-xl);
}

.header__nav a {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-light);
    transition: color var(--transition);
}

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

.header__cta {
    padding: 0.5rem 1.125rem;
    font-size: 0.85rem;
}

.header__menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
}

.header__menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--color-primary);
    border-radius: 2px;
    transition: all var(--transition);
}

.header__menu-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.header__menu-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.header__menu-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile nav overlay */
.mobile-nav {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 99;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding-top: 100px;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.mobile-nav.is-open {
    opacity: 1;
    visibility: visible;
}

.mobile-nav nav {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xl);
    padding: var(--space-xl);
}

.mobile-nav a {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-text);
}

/* =============================================
   HERO
   ============================================= */

.hero {
    padding: var(--space-4xl) 0 var(--space-3xl);
    background: linear-gradient(135deg, #f0f4f8 0%, #e8eef5 50%, #f7f8fa 100%);
    position: relative;
    overflow: hidden;
}

/* Orbs animados de fondo en el hero */
.hero::before,
.hero::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.35;
    pointer-events: none;
    will-change: transform;
}

.hero::before {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(26, 58, 92, 0.25) 0%, transparent 70%);
    top: -100px;
    right: -100px;
    animation: floatOrb1 12s ease-in-out infinite;
}

.hero::after {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(37, 211, 102, 0.15) 0%, transparent 70%);
    bottom: -80px;
    left: -80px;
    animation: floatOrb2 15s ease-in-out infinite;
}

@keyframes floatOrb1 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(-40px, 30px) scale(1.05); }
    66% { transform: translate(20px, -20px) scale(0.95); }
}

@keyframes floatOrb2 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -25px) scale(1.08); }
    66% { transform: translate(-20px, 15px) scale(0.92); }
}

.hero__inner {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 780px;
    margin: 0 auto;
}

.hero__title {
    font-size: clamp(1.75rem, 5vw, 2.75rem);
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-lg);
}

.hero__subtitle {
    font-size: clamp(1.05rem, 2.5vw, 1.2rem);
    color: var(--color-text);
    line-height: 1.7;
    margin-bottom: var(--space-md);
}

.hero__text {
    font-size: 0.95rem;
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: var(--space-2xl);
}

.hero__ctas {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    justify-content: center;
    margin-bottom: var(--space-xl);
}

.hero__trust {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

/* =============================================
   COUNTDOWN
   ============================================= */

.countdown {
    margin-top: var(--space-2xl);
    padding: var(--space-xl) var(--space-2xl);
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-xl);
    display: inline-block;
}

.countdown__label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--space-md);
}

.countdown__grid {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
}

.countdown__block {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 64px;
}

.countdown__number {
    font-size: clamp(2rem, 5vw, 2.75rem);
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
    font-variant-numeric: tabular-nums;
    transition: transform 0.15s ease;
}

.countdown__number.tick {
    transform: scale(1.08);
}

.countdown__unit {
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-top: var(--space-xs);
}

.countdown__separator {
    font-size: 1.75rem;
    font-weight: 300;
    color: var(--color-text-muted);
    line-height: 1;
    margin-bottom: 14px;
    opacity: 0.5;
}

.countdown__expired {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-primary);
    padding: var(--space-md) 0;
}

@media (max-width: 480px) {
    .countdown {
        padding: var(--space-lg) var(--space-md);
        width: 100%;
    }

    .countdown__block {
        min-width: 52px;
    }

    .countdown__number {
        font-size: 1.75rem;
    }

    .countdown__separator {
        font-size: 1.25rem;
    }
}

/* =============================================
   SECCIONES
   ============================================= */

.section {
    padding: var(--space-4xl) 0;
}

.section--alt {
    background-color: var(--color-bg-alt);
    position: relative;
}

/* Sutil patrón decorativo en secciones alternas */
.section--alt::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse 600px 300px at 10% 20%, rgba(26, 58, 92, 0.03) 0%, transparent 70%),
        radial-gradient(ellipse 500px 250px at 90% 80%, rgba(37, 211, 102, 0.03) 0%, transparent 70%);
    pointer-events: none;
}

.section--cta {
    background: linear-gradient(-45deg, #0f2a45, #1a3a5c, #1e4d6e, #163050);
    background-size: 300% 300%;
    animation: gradientShift 10s ease infinite;
    text-align: center;
    padding: var(--space-4xl) 0;
    position: relative;
    overflow: hidden;
}

.section--cta::before {
    content: '';
    position: absolute;
    width: 350px;
    height: 350px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(37, 211, 102, 0.12) 0%, transparent 70%);
    filter: blur(60px);
    top: -80px;
    right: -60px;
    animation: floatOrb1 14s ease-in-out infinite;
    pointer-events: none;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.section__title {
    font-size: clamp(1.5rem, 3.5vw, 2rem);
    font-weight: 700;
    color: var(--color-primary);
    text-align: center;
    margin-bottom: var(--space-md);
    letter-spacing: -0.01em;
    line-height: 1.25;
    position: relative;
    padding-bottom: var(--space-md);
}

/* Línea decorativa animada bajo títulos */
.section__title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    background-size: 200% 100%;
    animation: shimmerLine 3s ease-in-out infinite;
}

.section__title--light::after {
    background: linear-gradient(90deg, rgba(255,255,255,0.6), var(--color-accent), rgba(255,255,255,0.6));
    background-size: 200% 100%;
    animation: shimmerLine 3s ease-in-out infinite;
}

@keyframes shimmerLine {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.section__title--light {
    color: var(--color-white);
}

.section__intro {
    font-size: 1.02rem;
    color: var(--color-text-light);
    text-align: center;
    max-width: 640px;
    margin: 0 auto var(--space-2xl);
    line-height: 1.7;
}

.section__intro--light {
    color: rgba(255, 255, 255, 0.85);
}

.section__note {
    text-align: center;
    color: var(--color-text-light);
    font-size: 0.9rem;
    margin-top: var(--space-2xl);
}

.section__cta {
    text-align: center;
    margin-top: var(--space-2xl);
}

/* =============================================
   AUDIENCE CARDS (Sección 1)
   ============================================= */

.audience-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

.audience-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    padding: var(--space-xl);
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    transition: all var(--transition);
}

.audience-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.audience-card__icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-alt);
    border-radius: var(--border-radius);
    color: var(--color-primary);
}

.audience-card p {
    font-size: 0.95rem;
    color: var(--color-text);
    line-height: 1.5;
    padding-top: var(--space-sm);
}

/* =============================================
   SERVICES (Sección 2)
   ============================================= */

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.service-card {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    padding: var(--space-2xl);
    border: 1px solid var(--color-border);
    transition: all var(--transition);
}

.service-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.service-card__number {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--color-primary-light);
    margin-bottom: var(--space-md);
    letter-spacing: 0.05em;
}

.service-card__title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--space-sm);
    line-height: 1.3;
}

.service-card p {
    font-size: 0.92rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* =============================================
   NOTICE BOX (Sección 3)
   ============================================= */

.notice {
    display: flex;
    gap: var(--space-md);
    align-items: flex-start;
    background: #fef9e7;
    border: 1px solid #f5e6a3;
    border-left: 4px solid #e9c84a;
    border-radius: var(--border-radius);
    padding: var(--space-lg);
    margin-top: var(--space-xl);
}

.notice svg {
    flex-shrink: 0;
    color: #c9a227;
    margin-top: 2px;
}

.notice p {
    font-size: 0.92rem;
    color: var(--color-text);
    line-height: 1.6;
}

/* =============================================
   DOCUMENT LIST (Sección 4)
   ============================================= */

.doc-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.doc-list li {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    font-size: 0.95rem;
    color: var(--color-text);
    transition: all var(--transition);
}

.doc-list li:hover {
    border-color: var(--color-primary);
    background: var(--color-white);
}

.doc-list li svg {
    flex-shrink: 0;
    color: var(--color-primary);
}

/* =============================================
   PRICING (Sección 5)
   ============================================= */

.section--pricing {
    position: relative;
    overflow: hidden;
}

.section--pricing::before,
.section--pricing::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    opacity: 0.5;
    filter: blur(70px);
}

.section--pricing::before {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(37, 211, 102, 0.1) 0%, transparent 70%);
    top: -60px;
    left: -60px;
    animation: floatOrb2 18s ease-in-out infinite;
}

.section--pricing::after {
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, rgba(26, 58, 92, 0.08) 0%, transparent 70%);
    bottom: -50px;
    right: -50px;
    animation: floatOrb1 16s ease-in-out infinite;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    align-items: stretch;
}

.pricing-grid--two {
    grid-template-columns: repeat(2, 1fr);
    max-width: 700px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-xl);
    padding: var(--space-2xl);
    text-align: center;
    transition: all var(--transition);
}

.pricing-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

.pricing-card--featured {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    position: relative;
}

.pricing-card__title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-lg);
}

.pricing-card__price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--space-sm);
    line-height: 1.1;
}

.pricing-card__price span {
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--color-text-light);
}

.pricing-card__badge {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-primary);
    background: rgba(26, 58, 92, 0.08);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    margin-bottom: var(--space-md);
}

.pricing-card--featured .pricing-card__badge {
    color: var(--color-white);
    background: var(--color-primary);
}

.pricing-card__features {
    text-align: left;
    margin-bottom: var(--space-xl);
}

.pricing-card__features li {
    font-size: 0.88rem;
    color: var(--color-text-light);
    padding: var(--space-xs) 0;
    padding-left: 1.4rem;
    position: relative;
    line-height: 1.5;
}

.pricing-card__features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.55rem;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-accent);
}

.pricing-card__note {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-xl);
}

.pricing-card .btn {
    margin-top: auto;
}

/* =============================================
   IMAGE BREAK (Separadores visuales)
   ============================================= */

.image-break {
    position: relative;
    overflow: hidden;
    height: 360px;
}

.image-break__inner {
    position: relative;
    width: 100%;
    height: 100%;
}

.image-break__img {
    width: 100%;
    height: 130%;
    object-fit: cover;
    object-position: center;
    position: absolute;
    top: 0;
    left: 0;
    will-change: transform;
    transition: transform 0.1s linear;
    /* Fallback si no hay imagen: fondo degradado */
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
}

.image-break__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15, 42, 69, 0.75) 0%, rgba(26, 58, 92, 0.6) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-xl);
}

.image-break__text {
    color: var(--color-white);
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
    font-weight: 500;
    text-align: center;
    max-width: 600px;
    line-height: 1.6;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.image-break__text.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.image-break__text strong {
    font-weight: 700;
    color: var(--color-accent);
}

@media (max-width: 768px) {
    .image-break {
        height: 280px;
    }
}

@media (max-width: 480px) {
    .image-break {
        height: 240px;
    }
}

/* =============================================
   SCROLL ANIMATIONS
   ============================================= */

/* Animaciones base: se activan por JS con data-anim */
[data-anim="fade-up"] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s cubic-bezier(0.22, 1, 0.36, 1),
                transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

[data-anim="fade-up"].is-visible {
    opacity: 1;
    transform: translateY(0);
}

[data-anim="fade-left"] {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.6s cubic-bezier(0.22, 1, 0.36, 1),
                transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

[data-anim="fade-left"].is-visible {
    opacity: 1;
    transform: translateX(0);
}

[data-anim="fade-right"] {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.6s cubic-bezier(0.22, 1, 0.36, 1),
                transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

[data-anim="fade-right"].is-visible {
    opacity: 1;
    transform: translateX(0);
}

[data-anim="scale-in"] {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.5s cubic-bezier(0.22, 1, 0.36, 1),
                transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

[data-anim="scale-in"].is-visible {
    opacity: 1;
    transform: scale(1);
}

/* Staggered delay para elementos hijos */
[data-anim-delay="1"] { transition-delay: 0.1s !important; }
[data-anim-delay="2"] { transition-delay: 0.2s !important; }
[data-anim-delay="3"] { transition-delay: 0.3s !important; }
[data-anim-delay="4"] { transition-delay: 0.4s !important; }
[data-anim-delay="5"] { transition-delay: 0.5s !important; }
[data-anim-delay="6"] { transition-delay: 0.6s !important; }

/* =============================================
   FAQ (Sección 6)
   ============================================= */

.faq-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.faq-item {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: all var(--transition);
}

.faq-item[open] {
    border-color: var(--color-primary);
}

.faq-item__question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    padding: var(--space-lg);
    font-size: 0.97rem;
    font-weight: 600;
    color: var(--color-text);
    cursor: pointer;
    list-style: none;
    transition: color var(--transition);
}

.faq-item__question::-webkit-details-marker {
    display: none;
}

.faq-item__question::marker {
    display: none;
    content: '';
}

.faq-item__question:hover {
    color: var(--color-primary);
}

.faq-item__icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    position: relative;
    border-radius: 50%;
    background: var(--color-bg-alt);
    transition: all var(--transition);
}

.faq-item__icon::before,
.faq-item__icon::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 10px;
    height: 2px;
    background: var(--color-primary);
    border-radius: 1px;
    transition: transform var(--transition);
}

.faq-item__icon::before {
    transform: translate(-50%, -50%);
}

.faq-item__icon::after {
    transform: translate(-50%, -50%) rotate(90deg);
}

.faq-item[open] .faq-item__icon::after {
    transform: translate(-50%, -50%) rotate(0deg);
}

.faq-item[open] .faq-item__icon {
    background: var(--color-primary);
}

.faq-item[open] .faq-item__icon::before,
.faq-item[open] .faq-item__icon::after {
    background: var(--color-white);
}

.faq-item__answer {
    padding: 0 var(--space-lg) var(--space-lg);
    animation: fadeIn 0.3s ease;
}

.faq-item__answer p {
    font-size: 0.92rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

/* =============================================
   FORMULARIO (Sección 7)
   ============================================= */

.form {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-xl);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-sm);
}

.form__honeypot {
    position: absolute;
    left: -9999px;
    top: -9999px;
    opacity: 0;
    height: 0;
    width: 0;
    overflow: hidden;
}

.form__row {
    margin-bottom: var(--space-md);
}

.form__row--two {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.form__group {
    margin-bottom: var(--space-md);
}

.form__group--checkbox {
    margin-bottom: var(--space-lg);
}

.form__label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: var(--space-xs);
}

.form__input {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-family);
    font-size: 0.938rem;
    color: var(--color-text);
    background: var(--color-bg);
    border: 1.5px solid var(--color-border);
    border-radius: var(--border-radius);
    transition: all var(--transition);
    appearance: none;
}

.form__input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(26, 58, 92, 0.1);
}

.form__input::placeholder {
    color: var(--color-text-muted);
}

.form__input--error {
    border-color: var(--color-error);
}

.form__input--error:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form__textarea {
    resize: vertical;
    min-height: 100px;
}

.form__checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    font-size: 0.85rem;
    color: var(--color-text-light);
    cursor: pointer;
    line-height: 1.5;
}

.form__checkbox-label input[type="checkbox"] {
    margin-top: 3px;
    flex-shrink: 0;
    width: 16px;
    height: 16px;
    accent-color: var(--color-primary);
}

.form__checkbox-label a {
    color: var(--color-primary);
    text-decoration: underline;
}

.form__message {
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: var(--space-md);
    animation: fadeIn 0.3s ease;
}

.form__message--success {
    background: #ecfdf5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.form__message--error {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.btn[disabled] {
    opacity: 0.65;
    pointer-events: none;
}

/* =============================================
   FOOTER
   ============================================= */

.footer {
    background: var(--color-primary-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: var(--space-3xl) 0 var(--space-xl);
}

.footer__inner {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--space-xl);
    padding-bottom: var(--space-xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__brand strong {
    font-size: 1.1rem;
    color: var(--color-white);
    display: block;
    margin-bottom: var(--space-sm);
}

.footer__brand p {
    font-size: 0.875rem;
    line-height: 1.6;
}

.footer__links {
    display: flex;
    gap: var(--space-xl);
}

.footer__links a {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
    transition: color var(--transition);
}

.footer__links a:hover {
    color: var(--color-white);
}

.footer__legal {
    padding-top: var(--space-xl);
    text-align: center;
}

.footer__legal p {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.45);
    line-height: 1.6;
    margin-bottom: var(--space-xs);
}

/* =============================================
   WHATSAPP FLOTANTE
   ============================================= */

.whatsapp-float {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 90;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    opacity: 0;
    transform: scale(0.8);
    transition: all var(--transition-slow);
}

.whatsapp-float.is-visible {
    opacity: 1;
    transform: scale(1);
}

.whatsapp-float__tooltip {
    background: var(--color-white);
    color: var(--color-text);
    font-size: 0.813rem;
    font-weight: 500;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    white-space: nowrap;
    opacity: 0;
    transform: translateX(10px);
    transition: all var(--transition-slow);
    pointer-events: none;
}

.whatsapp-float:hover .whatsapp-float__tooltip {
    opacity: 1;
    transform: translateX(0);
}

.whatsapp-float__btn {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-accent);
    color: var(--color-white);
    border-radius: 50%;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition);
    animation: pulse 3s ease-in-out infinite;
}

.whatsapp-float__btn:hover {
    background: var(--color-accent-hover);
    color: var(--color-white);
    transform: scale(1.08);
    box-shadow: var(--shadow-xl);
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.35); }
    50% { box-shadow: 0 4px 30px rgba(37, 211, 102, 0.55); }
}

/* =============================================
   BARRA STICKY MÓVIL
   ============================================= */

.mobile-sticky-bar {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 85;
    background: var(--color-white);
    padding: var(--space-sm) var(--space-md);
    box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.1);
    transform: translateY(100%);
    transition: transform var(--transition-slow);
}

.mobile-sticky-bar.is-visible {
    transform: translateY(0);
}

.mobile-sticky-bar .btn {
    font-size: 0.95rem;
}

/* =============================================
   RESPONSIVE
   ============================================= */

@media (max-width: 900px) {
    .pricing-grid,
    .pricing-grid--two {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

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

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

@media (max-width: 768px) {
    :root {
        --space-4xl: 3.5rem;
    }

    /* Header mobile */
    .header__logo-img {
        height: 36px;
    }

    .header__nav,
    .header__cta {
        display: none;
    }

    .header__menu-toggle {
        display: flex;
    }

    .mobile-nav {
        display: block;
    }

    /* Hero */
    .hero {
        padding: var(--space-3xl) 0 var(--space-2xl);
    }

    .hero__ctas {
        flex-direction: column;
        align-items: stretch;
    }

    .hero__ctas .btn {
        justify-content: center;
    }

    /* Form */
    .form__row--two {
        grid-template-columns: 1fr;
    }

    .form {
        padding: var(--space-lg);
    }

    /* Footer */
    .footer__inner {
        flex-direction: column;
        gap: var(--space-lg);
    }

    .footer__links {
        flex-direction: column;
        gap: var(--space-sm);
    }

    /* WhatsApp float ajustado para barra sticky */
    .whatsapp-float {
        bottom: 80px;
        right: 16px;
    }

    .whatsapp-float__tooltip {
        display: none;
    }

    .whatsapp-float__btn {
        width: 50px;
        height: 50px;
    }

    .whatsapp-float__btn svg {
        width: 24px;
        height: 24px;
    }

    /* Barra sticky */
    .mobile-sticky-bar {
        display: block;
    }

    /* Ajustar padding del body para la sticky bar */
    body {
        padding-bottom: 60px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-md);
    }

    .hero__title {
        font-size: 1.6rem;
    }

    .section__title {
        font-size: 1.35rem;
    }

    .pricing-card {
        padding: var(--space-xl);
    }

    .pricing-card__price {
        font-size: 2rem;
    }

    .service-card {
        padding: var(--space-xl);
    }
}

/* =============================================
   ACCESIBILIDAD
   ============================================= */

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Focus visible para teclado */
:focus-visible {
    outline: 3px solid var(--color-primary-light);
    outline-offset: 2px;
}

:focus:not(:focus-visible) {
    outline: none;
}

/* Skip link */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--space-sm) var(--space-md);
    z-index: 200;
    transition: top var(--transition);
}

.skip-link:focus {
    top: 0;
}