/* ============================================
   SKYLANCH — Main Stylesheet
   Premium Landing Page
   ============================================ */

/* --- Custom Properties --- */
:root {
    --color-white: #FFFFFF;
    --color-primary: #2563EB;
    --color-primary-dark: #1e40af;
    --color-primary-light: #3b82f6;
    --color-text: #1F2937;
    --color-text-light: #6B7280;
    --color-bg-secondary: #F5F7FA;
    --color-bg-dark: #1F2937;
    --color-bg-dark-2: #1e293b;
    --color-border: #E5E7EB;
    --color-success: #10B981;

    --font-heading: 'Bebas Neue', cursive;
    --font-body: 'Plus Jakarta Sans', sans-serif;

    --container-max: 1200px;
    --container-padding: clamp(1.25rem, 4vw, 3rem);
    --section-padding: clamp(4rem, 10vw, 8rem);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    --transition-fast: 0.2s ease;
    --transition-base: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);

    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
    --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
}

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

html {
    scroll-behavior: auto;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: clamp(0.9375rem, 0.5vw + 0.875rem, 1.0625rem);
    line-height: 1.7;
    color: var(--color-text);
    background: var(--color-white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img, video, svg {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font: inherit;
    color: inherit;
}

ul, ol {
    list-style: none;
}

input, select, textarea {
    font: inherit;
    color: inherit;
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: 0.02em;
}

/* --- Container --- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.container--narrow {
    max-width: 800px;
}

/* --- Section Utilities --- */
.section-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.section-tag--light {
    color: var(--color-primary-light);
}

.section-title {
    font-size: clamp(2.5rem, 5vw + 1rem, 5rem);
    color: var(--color-text);
    margin-bottom: 1rem;
}

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

.section-subtitle {
    font-size: clamp(1rem, 0.5vw + 0.9rem, 1.25rem);
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto 3rem;
}

.section-subtitle--light {
    color: rgba(255,255,255,0.7);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    border-radius: 100px;
    font-weight: 600;
    font-size: 0.9375rem;
    transition: all var(--transition-base);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

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

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(37, 99, 235, 0.35);
}

.btn-outline {
    border: 1.5px solid var(--color-border);
    color: var(--color-text);
    background: transparent;
}

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

.btn-full {
    width: 100%;
    justify-content: center;
}

.btn-large {
    padding: 1.125rem 2.5rem;
    font-size: 1.0625rem;
}

.btn-ripple {
    overflow: hidden;
}

.btn-ripple .ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255,255,255,0.3);
    transform: scale(0);
    animation: rippleEffect 0.6s ease-out;
    pointer-events: none;
}

@keyframes rippleEffect {
    to { transform: scale(4); opacity: 0; }
}

/* --- Loader --- */
#loader {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

#loader.loaded {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

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

.loader-logo {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    letter-spacing: 0.12em;
    color: var(--color-text);
    margin-bottom: 1.5rem;
}

.loader-bar {
    width: 200px;
    height: 3px;
    background: var(--color-bg-secondary);
    border-radius: 10px;
    overflow: hidden;
}

.loader-progress {
    height: 100%;
    width: 0%;
    background: var(--color-primary);
    border-radius: 10px;
    transition: width 0.3s ease;
}

/* --- Navigation --- */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.25rem 0;
    transition: all var(--transition-base);
}

#navbar.scrolled {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0,0,0,0.06);
    padding: 0.75rem 0;
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    letter-spacing: 0.12em;
    color: var(--color-white);
    transition: color var(--transition-base);
}

#navbar.scrolled .nav-logo {
    color: var(--color-text);
}

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

.nav-links a {
    font-size: 0.875rem;
    font-weight: 500;
    color: rgba(255,255,255,0.8);
    transition: color var(--transition-base);
}

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

#navbar.scrolled .nav-links a {
    color: var(--color-text-light);
}

#navbar.scrolled .nav-links a:hover {
    color: var(--color-text);
}

.nav-links .nav-cta {
    background: var(--color-primary);
    color: var(--color-white) !important;
    padding: 0.5rem 1.25rem;
    border-radius: 100px;
    font-weight: 600;
}

.nav-links .nav-cta:hover {
    background: var(--color-primary-dark);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 4px;
    z-index: 1001;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-white);
    border-radius: 2px;
    transition: all var(--transition-base);
}

#navbar.scrolled .nav-toggle span {
    background: var(--color-text);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.nav-toggle.active span {
    background: var(--color-white) !important;
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    inset: 0;
    z-index: 999;
    background: rgba(15, 23, 42, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-slow);
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu-links {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.mobile-menu-links a {
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--color-white);
    letter-spacing: 0.05em;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.mobile-menu.active .mobile-menu-links a {
    opacity: 1;
    transform: translateY(0);
}

.mobile-menu-links .nav-cta {
    margin-top: 1rem;
    background: var(--color-primary);
    padding: 0.75rem 2rem;
    border-radius: 100px;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
}

/* ============================================
   SECTION 1: HERO
   ============================================ */
.section-hero {
    position: relative;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: #0f172a;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(
        180deg,
        rgba(15, 23, 42, 0.55) 0%,
        rgba(15, 23, 42, 0.35) 40%,
        rgba(15, 23, 42, 0.45) 70%,
        rgba(15, 23, 42, 0.65) 100%
    );
}

#heroCanvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 3;
    padding: 2rem;
    max-width: 900px;
}

.hero-kicker {
    font-size: clamp(0.8125rem, 0.5vw + 0.7rem, 1rem);
    color: rgba(255,255,255,0.7);
    margin-bottom: 2rem;
    letter-spacing: 0.02em;
    line-height: 1.6;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 300;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(3.5rem, 10vw + 1rem, 10rem);
    color: var(--color-white);
    letter-spacing: 0.05em;
    line-height: 0.95;
    margin-bottom: 1.5rem;
}

.hero-title .char {
    display: inline-block;
    opacity: 0;
}

.hero-subtitle {
    font-size: clamp(1rem, 1vw + 0.75rem, 1.5rem);
    color: rgba(255,255,255,0.8);
    font-weight: 300;
    max-width: 500px;
    margin: 0 auto 2.5rem;
    line-height: 1.6;
}

.hero-ctas {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255,255,255,0.4);
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, rgba(255,255,255,0.4), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 1; transform: scaleY(1); }
    50% { opacity: 0.3; transform: scaleY(0.6); }
}

/* ============================================
   SECTION 2: EL PROBLEMA (reescrito — tono visceral)
   ============================================ */
.section-problema {
    padding: clamp(6rem, 12vw, 10rem) 0;
    background: var(--color-white);
    position: relative;
}

.section-problema::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, transparent, var(--color-primary) 40%, transparent);
    opacity: 0.15;
}

/* Intro */
.problema-intro {
    text-align: center;
    max-width: 780px;
    margin: 0 auto 5rem;
}

.problema-headline {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3.25rem);
    font-weight: 900;
    line-height: 1.15;
    color: var(--color-text);
    margin-top: 1rem;
    letter-spacing: -0.01em;
}

/* Escenas */
.problema-escenas {
    max-width: 820px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0;
}

.escena {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 2rem;
    padding: 3rem 0;
    border-bottom: 1px solid var(--color-border);
    align-items: start;
}

.escena:last-child {
    border-bottom: none;
}

.escena-numero {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 900;
    color: var(--color-primary);
    opacity: 0.18;
    line-height: 1;
    padding-top: 0.3rem;
    letter-spacing: -0.04em;
}

.escena-contenido {
    padding-top: 0.2rem;
}

.escena-texto {
    font-size: clamp(1.05rem, 1.5vw, 1.2rem);
    line-height: 1.85;
    color: var(--color-text);
    margin-bottom: 1.25rem;
}

.escena-texto em {
    font-style: italic;
    color: var(--color-text-light);
    font-size: 0.97em;
}

.escena-label {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-primary);
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

/* Golpe final */
.problema-golpe {
    margin-top: 5rem;
    text-align: center;
    padding: 3.5rem;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(37, 99, 235, 0.08);
}

.golpe-texto {
    font-size: clamp(1.2rem, 2vw, 1.6rem);
    line-height: 1.6;
    color: var(--color-text-light);
    max-width: 700px;
    margin: 0 auto;
}

.golpe-texto strong {
    color: var(--color-text);
    font-weight: 700;
    display: block;
    margin-top: 0.5rem;
}

/* ============================================
   SECTION 3: LA OPORTUNIDAD
   ============================================ */
.section-oportunidad {
    padding: clamp(6rem, 14vw, 12rem) 0;
    background: var(--color-bg-secondary);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.section-oportunidad::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.2), transparent);
}

.oportunidad-container {
    max-width: 1100px;
    margin: 0 auto;
}

.oportunidad-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 1.5rem;
    align-items: stretch;
    margin: 4rem 0 5rem;
}

.oportunidad-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: 2.5rem 2rem;
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    position: relative;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

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

.oportunidad-card--current {
    color: var(--color-text-light);
}

.oportunidad-card--current .oportunidad-icon {
    color: var(--color-text-light);
    background: rgba(31, 41, 55, 0.05);
}

.oportunidad-card--future {
    background: linear-gradient(180deg, var(--color-white) 0%, rgba(37, 99, 235, 0.04) 100%);
    border-color: rgba(37, 99, 235, 0.2);
}

.oportunidad-card--future .oportunidad-icon {
    color: var(--color-primary);
    background: rgba(37, 99, 235, 0.1);
}

.oportunidad-label {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-primary);
    padding-bottom: 0.75rem;
    border-bottom: 1px solid rgba(37, 99, 235, 0.15);
    align-self: flex-start;
}

.oportunidad-card--current .oportunidad-label {
    color: var(--color-text-light);
    border-bottom-color: var(--color-border);
}

.oportunidad-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 0.5rem;
}

.oportunidad-card h3 {
    font-family: var(--font-body);
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: 0;
    margin-top: 0.25rem;
}

.oportunidad-card p {
    color: var(--color-text-light);
    font-size: 0.9375rem;
    line-height: 1.7;
}

.oportunidad-connector {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    opacity: 0.6;
}

.oportunidad-showcase {
    position: relative;
    margin: 5rem auto 0;
    max-width: 1000px;
    border-radius: var(--radius-xl);
    overflow: hidden;
    aspect-ratio: 21 / 9;
    box-shadow: var(--shadow-lg);
}

.oportunidad-showcase img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 6s cubic-bezier(0.16, 1, 0.3, 1);
}

.oportunidad-showcase:hover img {
    transform: scale(1.04);
}

.oportunidad-showcase-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(15, 23, 42, 0.55) 100%);
    display: flex;
    align-items: flex-end;
    padding: 2rem 2.5rem;
    pointer-events: none;
}

.oportunidad-showcase-caption {
    font-family: var(--font-body);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 600;
}

.oportunidad-statement {
    margin-top: 4rem;
    padding: 3rem 2rem;
    border-top: 1px solid var(--color-border);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

@media (max-width: 768px) {
    .oportunidad-showcase {
        aspect-ratio: 16 / 10;
    }
    .oportunidad-showcase-overlay {
        padding: 1.25rem 1.5rem;
    }
}

.oportunidad-quote {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw + 0.5rem, 3.75rem);
    line-height: 1.15;
    letter-spacing: 0.02em;
    color: var(--color-text);
}

.oportunidad-quote--accent {
    color: var(--color-primary);
}

.highlight-text {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw + 0.5rem, 4rem);
    line-height: 1.1;
    color: var(--color-primary);
    letter-spacing: 0.02em;
}

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

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

    .oportunidad-connector {
        transform: rotate(90deg);
    }
}

/* ============================================
   SECTION 4: QUE ES SKYLANCH
   ============================================ */
.section-que-es {
    padding: var(--section-padding) 0;
}

.que-es-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(2rem, 5vw, 5rem);
    align-items: center;
}

.que-es-content .section-title {
    text-align: left;
}

.que-es-content p {
    color: var(--color-text-light);
    margin-bottom: 2rem;
    font-size: 1.0625rem;
    line-height: 1.8;
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 500;
}

.feature-check-icon {
    flex-shrink: 0;
}

.phone-mockup {
    background: var(--color-text);
    border-radius: 40px;
    padding: 12px;
    max-width: 320px;
    margin: 0 auto;
    box-shadow: var(--shadow-xl);
}

.phone-screen {
    border-radius: 30px;
    overflow: hidden;
    aspect-ratio: 9 / 19.5;
    background: #111;
}

.phone-screen img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ============================================
   SECTION 5: BENEFICIOS
   ============================================ */
.section-beneficios {
    padding: var(--section-padding) 0;
    background: var(--color-bg-secondary);
    text-align: center;
}

.beneficios-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
}

.beneficio-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    text-align: left;
    transition: all var(--transition-base);
}

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

.beneficio-card:hover .beneficio-icon svg {
    stroke: var(--color-primary-dark);
}

.beneficio-img {
    width: 100%;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    position: relative;
}

.beneficio-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.beneficio-card:hover .beneficio-img img {
    transform: scale(1.05);
}

.beneficio-img-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #1e3a5f 0%, #2563EB 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.beneficio-body {
    padding: 2.25rem 1.75rem;
    min-height: 240px;
    display: flex;
    flex-direction: column;
}

.beneficio-icon {
    margin-bottom: 0.75rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(37, 99, 235, 0.06);
    border-radius: var(--radius-sm);
    transition: background var(--transition-base);
}

.beneficio-card:hover .beneficio-icon {
    background: rgba(37, 99, 235, 0.12);
}

.beneficio-icon svg {
    flex-shrink: 0;
    transition: stroke var(--transition-base);
}

.beneficio-card h3 {
    font-family: var(--font-body);
    font-size: 1.0625rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: 0;
}

.beneficio-card p {
    color: var(--color-text-light);
    font-size: 0.875rem;
    line-height: 1.6;
}

/* ============================================
   SECTION 6: COMO FUNCIONARA
   ============================================ */
.section-como-funciona {
    padding: var(--section-padding) 0;
    text-align: center;
}

.timeline-horizontal {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 0;
    margin-top: 4rem;
}

.timeline-step {
    flex: 1;
    max-width: 250px;
    text-align: center;
    padding: 0 1rem;
}

.timeline-number {
    font-family: var(--font-heading);
    font-size: 3rem;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: 1rem;
}

.timeline-step h3 {
    font-family: var(--font-body);
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: 0;
}

.timeline-step p {
    font-size: 0.875rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

.timeline-connector {
    width: 60px;
    height: 2px;
    background: var(--color-primary);
    margin-top: 1.75rem;
    flex-shrink: 0;
    opacity: 0.3;
}

/* ─── Vertical Timeline (Cómo funciona) ─── */
.timeline-vertical {
    position: relative;
    max-width: 780px;
    margin: 4rem auto 0;
    text-align: left;
    padding-left: 2rem;
    padding-right: 0.5rem;
}

.timeline-vertical-line {
    position: absolute;
    left: 46px;
    top: 30px;
    bottom: 30px;
    width: 2px;
    background: linear-gradient(
        180deg,
        transparent 0%,
        rgba(37, 99, 235, 0.25) 5%,
        rgba(37, 99, 235, 0.25) 95%,
        transparent 100%
    );
}

.timeline-v-step {
    position: relative;
    display: grid;
    grid-template-columns: 62px minmax(0, 1fr);
    gap: 1.5rem;
    padding: 1.75rem 1.75rem 1.75rem 0;
    margin-bottom: 1.75rem;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    max-width: 100%;
    overflow: hidden;
}

.timeline-v-step:last-child {
    margin-bottom: 0;
}

.timeline-v-step:hover {
    box-shadow: var(--shadow-lg);
    border-color: rgba(37, 99, 235, 0.25);
}

@media (hover: hover) and (min-width: 768px) {
    .timeline-v-step:hover {
        transform: translateX(6px);
    }
}

.timeline-v-marker {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding-top: 0.25rem;
    margin-left: -1.75rem;
}

.timeline-v-icon {
    width: 62px;
    height: 62px;
    border-radius: 18px;
    background: linear-gradient(135deg, #2563EB 0%, #3b82f6 100%);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px rgba(37, 99, 235, 0.35);
    position: relative;
    z-index: 2;
}

.timeline-v-num {
    font-family: var(--font-heading);
    font-size: 1rem;
    color: var(--color-primary);
    letter-spacing: 0.15em;
    margin-top: 0.75rem;
    font-weight: 400;
    opacity: 0.7;
}

.timeline-v-content {
    padding-top: 0.5rem;
    padding-right: 0.5rem;
}

.timeline-v-content h3 {
    font-family: var(--font-body);
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: 0;
    margin-bottom: 0.75rem;
}

.timeline-v-content p {
    font-size: 0.9375rem;
    color: var(--color-text-light);
    line-height: 1.75;
    margin: 0;
}

@media (max-width: 768px) {
    .timeline-vertical {
        padding-left: 1.25rem;
        padding-right: 0.25rem;
    }
    .timeline-vertical-line {
        left: 34px;
    }
    .timeline-v-step {
        grid-template-columns: 48px minmax(0, 1fr);
        gap: 1rem;
        padding: 1.25rem 1.25rem 1.25rem 0;
        margin-bottom: 1.25rem;
    }
    .timeline-v-icon {
        width: 48px;
        height: 48px;
        border-radius: 12px;
    }
    .timeline-v-marker {
        margin-left: -1rem;
    }
    .timeline-v-num {
        font-size: 0.8125rem;
        margin-top: 0.5rem;
    }
    .timeline-v-content {
        padding-top: 0.25rem;
        padding-right: 0;
    }
    .timeline-v-content h3 {
        font-size: 1.0625rem;
        margin-bottom: 0.5rem;
    }
    .timeline-v-content p {
        font-size: 0.875rem;
        line-height: 1.65;
    }
}

@media (max-width: 400px) {
    .timeline-vertical {
        padding-left: 0.75rem;
    }
    .timeline-vertical-line {
        left: 28px;
    }
    .timeline-v-step {
        grid-template-columns: 42px minmax(0, 1fr);
        gap: 0.75rem;
        padding: 1rem 1rem 1rem 0;
    }
    .timeline-v-icon {
        width: 42px;
        height: 42px;
        border-radius: 10px;
    }
    .timeline-v-marker {
        margin-left: -0.75rem;
    }
}

/* ============================================
   SECTION 7: PAGOS 84/16
   ============================================ */
.section-pagos {
    padding: var(--section-padding) 0;
    background: var(--color-bg-secondary);
}

.pagos-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: clamp(2rem, 5vw, 5rem);
    align-items: center;
}

.pagos-title {
    font-size: clamp(4rem, 8vw, 8rem) !important;
    color: var(--color-primary) !important;
    text-align: left;
}

.pagos-lead {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.pagos-lead strong {
    color: var(--color-primary);
}

.pagos-body {
    color: var(--color-text-light);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.pagos-comparison {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.comparison-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.comparison-label {
    font-size: 0.8125rem;
    font-weight: 600;
    min-width: 140px;
    text-align: right;
}

.comparison-bar {
    height: 36px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    padding: 0 1rem;
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--color-white);
    white-space: nowrap;
    min-width: fit-content;
}

.comparison-skylanch .comparison-bar {
    background: var(--color-primary);
}

.comparison-ota .comparison-bar {
    background: var(--color-text-light);
}

.pie-chart {
    position: relative;
    width: 280px;
    height: 280px;
    margin: 0 auto;
}

.pie-svg {
    width: 100%;
    height: 100%;
}

.pie-center {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.pie-percent {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    color: var(--color-primary);
    line-height: 1;
}

.pie-percent::after {
    content: '%';
}

.pie-label {
    font-size: 0.875rem;
    color: var(--color-text-light);
    font-weight: 500;
}

/* ============================================
   SECTION 8: POR QUE AHORA (VISION 3D)
   ============================================ */
.section-vision {
    position: relative;
    padding: clamp(6rem, 14vw, 12rem) 0;
    background: radial-gradient(ellipse at center, #1e293b 0%, #0f172a 70%, #0a1226 100%);
    overflow: hidden;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.section-vision::before {
    content: '';
    position: absolute;
    top: -30%;
    left: -20%;
    width: 140%;
    height: 60%;
    background: radial-gradient(ellipse at center, rgba(37, 99, 235, 0.18) 0%, transparent 60%);
    pointer-events: none;
    z-index: 1;
}

.section-vision::after {
    content: '';
    position: absolute;
    bottom: -30%;
    right: -20%;
    width: 140%;
    height: 60%;
    background: radial-gradient(ellipse at center, rgba(59, 130, 246, 0.12) 0%, transparent 60%);
    pointer-events: none;
    z-index: 1;
}

#visionCanvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.vision-noise {
    position: absolute;
    inset: 0;
    z-index: 3;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.05 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    opacity: 0.4;
    mix-blend-mode: overlay;
    pointer-events: none;
}

.vision-container {
    position: relative;
    z-index: 4;
}

.vision-content {
    max-width: 780px;
}

.vision-content .section-tag {
    margin-bottom: 2rem;
}

.vision-title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 5vw + 1rem, 5rem);
    color: var(--color-white);
    line-height: 1.05;
    margin-bottom: 3.5rem;
    letter-spacing: 0.01em;
}

.vision-title .line {
    display: block;
    overflow: hidden;
}

.vision-title .line-inner {
    display: inline-block;
    background: linear-gradient(180deg, #FFFFFF 0%, #cbd5e1 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.vision-meta {
    display: flex;
    align-items: center;
    gap: clamp(1.5rem, 3vw, 3rem);
    padding-top: 2.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    flex-wrap: wrap;
}

.vision-meta-item {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.vision-meta-value {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 3vw, 2.75rem);
    line-height: 1;
    color: var(--color-primary-light);
    letter-spacing: 0.02em;
}

.vision-meta-label {
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.55);
    font-weight: 500;
}

.vision-meta-divider {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.15);
}

@media (max-width: 768px) {
    .vision-meta {
        gap: 1.5rem;
    }
    .vision-meta-divider {
        display: none;
    }
}

/* ============================================
   SECTION 10: ROADMAP
   ============================================ */
.section-roadmap {
    position: relative;
    padding: var(--section-padding) 0;
    background: var(--color-bg-dark);
    text-align: center;
    overflow: hidden;
}

.roadmap-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.roadmap-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.roadmap-overlay {
    position: absolute;
    inset: 0;
    z-index: 1;
    background: rgba(15, 23, 42, 0.85);
}

.roadmap-container {
    position: relative;
    z-index: 2;
}

.section-roadmap .phase-date {
    color: var(--color-primary-light);
}

.section-roadmap .phase-content h3 {
    color: var(--color-white);
}

.section-roadmap .phase-content p {
    color: rgba(255,255,255,0.65);
}

.section-roadmap .roadmap-line {
    background: rgba(255,255,255,0.12);
}

.section-roadmap .phase-marker {
    background: var(--color-bg-dark-2);
    border-color: rgba(255,255,255,0.2);
}

.roadmap-timeline {
    position: relative;
    max-width: 700px;
    margin: 3rem auto 0;
    text-align: left;
}

.roadmap-line {
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-border);
}

.roadmap-phase {
    position: relative;
    padding-left: 60px;
    padding-bottom: 3rem;
}

.roadmap-phase:last-child {
    padding-bottom: 0;
}

.phase-marker {
    position: absolute;
    left: 11px;
    top: 4px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--color-white);
    border: 3px solid var(--color-border);
    z-index: 1;
    transition: all var(--transition-base);
}

.phase-marker--active {
    border-color: var(--color-primary);
    background: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.2);
}

.phase-date {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.phase-content h3 {
    font-family: var(--font-body);
    font-size: 1.125rem;
    font-weight: 700;
    margin: 0.25rem 0 0.5rem;
    letter-spacing: 0;
}

.phase-content p {
    font-size: 0.9375rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ============================================
   SECTION 11: FAQ
   ============================================ */
.section-faq {
    padding: var(--section-padding) 0;
    text-align: center;
}

.faq-list {
    margin-top: 3rem;
    text-align: left;
}

.faq-item {
    border-bottom: 1px solid var(--color-border);
}

.faq-item:first-child {
    border-top: 1px solid var(--color-border);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem 0;
    font-size: 1.0625rem;
    font-weight: 600;
    text-align: left;
    gap: 1rem;
    transition: color var(--transition-fast);
}

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

.faq-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    transition: transform var(--transition-base);
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1),
                padding-bottom 0.4s ease;
}

.faq-answer p {
    color: var(--color-text-light);
    line-height: 1.8;
}

/* ============================================
   SECTION 12: CONTACTO / CTA FINAL
   ============================================ */
.section-contacto {
    position: relative;
    padding: var(--section-padding) 0;
    text-align: center;
    overflow: hidden;
}

.contacto-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.contacto-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.contacto-overlay {
    position: absolute;
    inset: 0;
    z-index: 1;
    background: rgba(15, 23, 42, 0.88);
}

.contacto-container {
    position: relative;
    z-index: 2;
}

.contact-form {
    margin-top: 2.5rem;
    text-align: left;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: rgba(255,255,255,0.9);
}

.optional {
    font-weight: 400;
    color: rgba(255,255,255,0.4);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1.25rem;
    border: none;
    border-bottom: 2px solid rgba(255,255,255,0.2);
    border-radius: 0;
    background: rgba(255,255,255,0.05);
    font-size: 1rem;
    transition: border-color var(--transition-fast), background var(--transition-fast);
    outline: none;
    color: var(--color-white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-primary);
    background: rgba(255,255,255,0.08);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255,255,255,0.3);
}

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

.form-group select {
    appearance: none;
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='rgba(255,255,255,0.5)' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 3rem;
}

.form-group select option {
    background: var(--color-bg-dark);
    color: var(--color-white);
}

.form-success {
    display: none;
    text-align: center;
    padding: 3rem 2rem;
}

.form-success.visible {
    display: block;
}

.success-icon {
    margin-bottom: 1rem;
    display: flex;
    justify-content: center;
}

.success-icon svg {
    flex-shrink: 0;
}

.form-success h3 {
    font-family: var(--font-body);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: 0;
    color: var(--color-white);
}

.form-success p {
    color: rgba(255,255,255,0.7);
}

/* ============================================
   SECTION 13: FOOTER
   ============================================ */
.section-footer {
    padding: 4rem 0 2rem;
    background: var(--color-bg-dark);
    color: rgba(255,255,255,0.6);
}

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

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    letter-spacing: 0.12em;
    color: var(--color-white);
    display: inline-block;
    margin-bottom: 1rem;
}

.footer-brand p {
    font-size: 0.875rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
    max-width: 280px;
}

.footer-social {
    display: flex;
    gap: 0.75rem;
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    transition: all var(--transition-base);
}

.footer-social a:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

.footer-social svg {
    width: 18px;
    height: 18px;
}

.footer-links h4 {
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 1.25rem;
    letter-spacing: 0;
}

.footer-links a {
    display: block;
    font-size: 0.875rem;
    color: rgba(255,255,255,0.5);
    margin-bottom: 0.75rem;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8125rem;
}

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

/* Tablet */
@media (max-width: 1024px) {
    .nav-links {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .que-es-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .que-es-content .section-title {
        text-align: center;
    }

    .feature-list {
        align-items: center;
    }

    .pagos-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .pagos-title {
        text-align: center !important;
    }

    .comparison-item {
        justify-content: center;
    }

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

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

/* Mobile landscape */
@media (max-width: 768px) {
    .timeline-horizontal {
        flex-direction: column;
        align-items: flex-start;
        padding-left: 0;
    }

    .timeline-step {
        text-align: left;
        max-width: 100%;
        padding: 0;
        margin-bottom: 0.5rem;
    }

    .timeline-connector {
        width: 2px;
        height: 24px;
        margin: 0 0 0.5rem 1.5rem;
    }

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

    .footer-bottom {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }

    .pagos-grid {
        gap: 3rem;
    }

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

    .form-row {
        grid-template-columns: 1fr;
    }

}

/* Mobile portrait */
@media (max-width: 480px) {
    .hero-title {
        font-size: clamp(2.5rem, 12vw, 4rem);
    }

    .hero-ctas {
        flex-direction: column;
    }

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

    .section-title {
        font-size: clamp(2rem, 8vw, 3rem);
    }

    /* problema responsive (nuevo diseño) */
    .escena {
        grid-template-columns: 56px 1fr;
        gap: 1.25rem;
        padding: 2rem 0;
    }
    .escena-numero {
        font-size: 2.5rem;
    }
    .problema-golpe {
        padding: 2rem 1.5rem;
    }

    .comparison-item {
        flex-direction: column;
        gap: 0.5rem;
    }

    .comparison-label {
        text-align: left;
    }
}

/* Small mobile */
@media (max-width: 320px) {
    :root {
        --container-padding: 1rem;
    }

    .hero-title {
        font-size: 2.25rem;
    }

    .section-title {
        font-size: 1.75rem;
    }
}

/* Ultra-wide */
@media (min-width: 1921px) {
    :root {
        --container-max: 1400px;
    }
}

@media (min-width: 3841px) {
    :root {
        --container-max: 1800px;
    }

    body {
        font-size: 1.25rem;
    }
}