/* ==========================================================================
   CONECTIVIDAD TOTAL — CORPORATE THEME, LAYOUT & ENHANCED COMPONENTS
   Identidad fiel al diseño original + mejoras de UX, responsividad y conversión
   ========================================================================== */

:root {
    --primary-color: #020617;
    --primary-hover: #0F172A;
    --secondary-color: #1E293B;
    --accent-color: #3B82F6;
    --accent-hover: #60A5FA;
    --logo-subtitle-color: #94A3B8;
    --button-color: #2563EB;
    --background-color: #020617;
    --surface-color: #0F172A;
    --footer-bg: #020617;
    --text-color: #F8FAFC;
    --text-muted: #94A3B8;
    --border-color: rgba(59, 130, 246, 0.2);
    --nav-bg: rgba(2, 6, 23, 0.88);
    --field-bg: #1E293B;
    --shadow-soft: 0 4px 20px -2px rgba(59, 130, 246, 0.15);
    --shadow-button: 0 4px 20px -2px rgba(59, 130, 246, 0.4);
    --glass-border: rgba(59, 130, 246, 0.2);
    --glass-bg: rgba(15, 23, 42, 0.72);
    --whatsapp-color: #25D366;
    --whatsapp-hover: #1EBE5D;
    --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-logo: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* Base Reset & Typography */
* {
    box-sizing: border-box;
}

html {
    background: var(--background-color);
    color: var(--text-color);
    scroll-padding-top: 92px;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    overflow-x: hidden;
    background: var(--background-color);
    color: var(--text-color);
    font-family: var(--font-body);
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

button,
a,
select {
    cursor: pointer;
}

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

::selection {
    background: var(--accent-color);
    color: #ffffff;
}

/* Header & Navigation */
.site-header {
    background: var(--nav-bg);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--glass-border);
    transition: background-color 250ms ease, box-shadow 250ms ease, border-color 250ms ease;
}

.site-header.is-scrolled {
    background: rgba(2, 6, 23, 0.96);
    box-shadow: 0 10px 30px -10px rgba(2, 6, 23, 0.85);
    border-bottom-color: rgba(59, 130, 246, 0.32);
}

.nav-link-item {
    position: relative;
    padding: 0.35rem 0;
}

.nav-link-item::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -2px;
    height: 2px;
    border-radius: 2px;
    background: var(--accent-color);
    box-shadow: 0 0 8px var(--accent-color);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 250ms ease;
}

.nav-link-item:hover::after,
.nav-link-item.active::after {
    transform: scaleX(1);
}

.nav-link-item.active {
    color: var(--text-color);
}

/* Section Utilities */
.section-pad {
    padding-top: clamp(4rem, 8vw, 6rem);
    padding-bottom: clamp(4rem, 8vw, 6rem);
}

.hero-split {
    background-color: var(--background-color);
    background-image:
        radial-gradient(circle at 50% 0%, rgba(37, 99, 235, 0.18) 0%, transparent 55%),
        radial-gradient(circle at 85% 40%, rgba(59, 130, 246, 0.12) 0%, transparent 45%),
        linear-gradient(rgba(59, 130, 246, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.05) 1px, transparent 1px);
    background-size: 100% 100%, 100% 100%, 40px 40px, 40px 40px;
    background-position: top center, center center, center center, center center;
}

.section-kicker {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--accent-color);
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.section-kicker::before {
    content: "";
    display: inline-block;
    width: 2.5rem;
    height: 2px;
    background: var(--accent-color);
    box-shadow: 0 0 8px var(--accent-color);
}

/* Frames & Panels */
.tech-frame {
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--glass-border);
    position: relative;
    background: var(--surface-color);
}

.tech-frame::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 0.75rem;
    box-shadow: inset 0 0 24px rgba(59, 130, 246, 0.22);
    pointer-events: none;
}

.glass-panel {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 0.75rem;
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

/* Service Cards */
.class-card {
    border-radius: 0.75rem;
    padding: 1.75rem;
    transition: transform 300ms ease, box-shadow 300ms ease, border-color 300ms ease;
    background: var(--surface-color);
    border: 1px solid var(--glass-border);
    position: relative;
    overflow: hidden;
}

@media (min-width: 640px) {
    .class-card {
        padding: 2rem;
    }
}

.class-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
    opacity: 0;
    transition: opacity 300ms ease;
}

.class-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px -4px rgba(59, 130, 246, 0.22);
    border-color: rgba(59, 130, 246, 0.45);
}

.class-card:hover::before {
    opacity: 1;
}

/* About & Competitive Advantage Cards */
.quiet-detail,
.amenity-row,
.contact-note {
    border: 1px solid var(--glass-border);
    border-radius: 0.75rem;
    background: var(--glass-bg);
    padding: 1.25rem;
    transition: background 300ms ease, border-color 300ms ease, transform 300ms ease;
}

.quiet-detail:hover,
.amenity-row:hover {
    background: var(--surface-color);
    border-color: rgba(59, 130, 246, 0.4);
    transform: translateY(-2px);
}

.quiet-detail span {
    display: inline-flex;
    margin-bottom: 0.5rem;
    color: var(--accent-color);
    font-size: 1.5rem;
    font-weight: 800;
    text-shadow: 0 0 10px rgba(59, 130, 246, 0.3);
}

.amenity-row {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 1rem;
}

.amenity-dot {
    width: 1rem;
    height: 1rem;
    margin-top: 0.25rem;
    border-radius: 0.25rem;
    background: var(--accent-color);
    box-shadow: 0 0 10px var(--accent-color);
}

/* Buttons */
.btn-corporate {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: var(--button-color);
    color: #FFFFFF;
    border: none;
    border-radius: 0.5rem;
    font-weight: 600;
    transition: all 300ms ease;
    box-shadow: var(--shadow-button);
}

.btn-corporate:hover {
    background: var(--accent-hover);
    box-shadow: 0 0 22px rgba(59, 130, 246, 0.65);
    transform: translateY(-1px);
}

/* Portfolio Swiper Enhancements */
.portfolio-swiper {
    position: relative;
}

.portfolio-swiper .swiper-pagination-bullet {
    background: rgba(248, 250, 252, 0.5);
    opacity: 1;
    width: 7px;
    height: 7px;
    transition: all 250ms ease;
}

.portfolio-swiper .swiper-pagination-bullet-active {
    background: var(--accent-color);
    width: 20px;
    border-radius: 999px;
    box-shadow: 0 0 8px var(--accent-color);
}

.portfolio-nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 9999px;
    background: rgba(2, 6, 23, 0.75);
    border: 1px solid rgba(59, 130, 246, 0.35);
    color: var(--text-color);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 250ms ease, background 250ms ease, transform 250ms ease;
    backdrop-filter: blur(6px);
}

.group:hover .portfolio-nav-btn {
    opacity: 1;
}

@media (max-width: 1023px) {
    .portfolio-nav-btn {
        opacity: 0.85;
    }
}

.portfolio-nav-btn:hover {
    background: var(--button-color);
    border-color: var(--accent-hover);
}

.portfolio-nav-prev {
    left: 0.75rem;
}

.portfolio-nav-next {
    right: 0.75rem;
}

.portfolio-slide-img {
    cursor: zoom-in;
}

/* FAQ Accordion (GEO & SEO Section) */
.faq-item {
    border: 1px solid var(--glass-border);
    border-radius: 0.75rem;
    background: var(--surface-color);
    overflow: hidden;
    transition: border-color 250ms ease, box-shadow 250ms ease;
}

.faq-item:hover,
.faq-item.is-open {
    border-color: rgba(59, 130, 246, 0.45);
    box-shadow: var(--shadow-soft);
}

.faq-trigger {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    text-align: left;
    background: transparent;
    border: none;
    color: var(--text-color);
    font-weight: 700;
    font-size: 1rem;
    line-height: 1.5;
}

.faq-icon {
    flex-shrink: 0;
    width: 2rem;
    height: 2rem;
    border-radius: 9999px;
    background: rgba(59, 130, 246, 0.12);
    border: 1px solid rgba(59, 130, 246, 0.25);
    color: var(--accent-color);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: transform 250ms ease, background 250ms ease;
}

.faq-item.is-open .faq-icon {
    transform: rotate(180deg);
    background: var(--button-color);
    color: #ffffff;
}

.faq-content {
    display: none;
    padding: 0 1.5rem 1.35rem 1.5rem;
    color: var(--text-muted);
    font-size: 0.9375rem;
    line-height: 1.7;
    border-top: 1px solid rgba(59, 130, 246, 0.1);
}

.faq-item.is-open .faq-content {
    display: block;
    padding-top: 1rem;
}

/* Contact & Booking Forms */
.contact-section {
    background: var(--surface-color);
    position: relative;
}

.contact-section::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
    opacity: 0.4;
}

.booking-form {
    padding: 1.5rem;
}

@media (min-width: 640px) {
    .booking-form {
        padding: 2.25rem;
    }
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-color);
    font-size: 0.875rem;
    font-weight: 600;
}

.form-status.success {
    color: #10B981;
}

.form-status.error {
    color: #EF4444;
}

/* Mobile Bottom Bar & Booking Overlay */
.mobile-book-bar {
    position: fixed;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 45;
    border-top: 1px solid var(--glass-border);
    background: var(--nav-bg);
    padding: 0.75rem 1rem calc(0.75rem + env(safe-area-inset-bottom));
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.booking-overlay {
    position: fixed;
    inset: 0;
    z-index: 70;
    display: none;
    overflow-y: auto;
    background: rgba(2, 6, 23, 0.88);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 1rem;
}

.booking-overlay.is-open {
    display: flex;
    align-items: center;
    justify-content: center;
}

.booking-overlay-panel {
    width: 100%;
    max-width: 36rem;
    background: var(--background-color);
    border-radius: 1rem;
    padding: 1.75rem;
    border: 1px solid var(--glass-border);
    box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.8);
}

@media (min-width: 640px) {
    .booking-overlay-panel {
        padding: 2.25rem;
    }
}

/* Lightbox Modal for Portfolio Images */
.lightbox-modal {
    position: fixed;
    inset: 0;
    z-index: 90;
    display: none;
    align-items: center;
    justify-content: center;
    background: rgba(2, 6, 23, 0.94);
    backdrop-filter: blur(10px);
    padding: 1.25rem;
}

.lightbox-modal.is-open {
    display: flex;
}

/* ==========================================================================
   FLOATING WHATSAPP BUTTON (4421485018)
   ========================================================================== */
.whatsapp-float-wrapper {
    position: fixed;
    right: 1.25rem;
    bottom: 5.25rem;
    z-index: 55;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

@media (min-width: 768px) {
    .whatsapp-float-wrapper {
        right: 1.75rem;
        bottom: 1.75rem;
    }
}

.whatsapp-tooltip {
    display: none;
    align-items: center;
    gap: 0.5rem;
    background: rgba(15, 23, 42, 0.95);
    border: 1px solid rgba(37, 211, 102, 0.4);
    color: var(--text-color);
    padding: 0.55rem 0.95rem;
    border-radius: 9999px;
    font-size: 0.8125rem;
    font-weight: 600;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    white-space: nowrap;
    transition: opacity 250ms ease, transform 250ms ease;
}

@media (min-width: 640px) {
    .whatsapp-tooltip {
        display: inline-flex;
    }
}

.whatsapp-tooltip-dot {
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 9999px;
    background: var(--whatsapp-color);
    box-shadow: 0 0 8px var(--whatsapp-color);
}

.whatsapp-float-btn {
    position: relative;
    width: 3.75rem;
    height: 3.75rem;
    border-radius: 9999px;
    background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
    color: #ffffff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: 0 10px 28px -4px rgba(37, 211, 102, 0.55);
    transition: transform 250ms ease, box-shadow 250ms ease;
    text-decoration: none;
}

.whatsapp-float-btn:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 14px 34px -2px rgba(37, 211, 102, 0.75);
}

.whatsapp-float-btn::before {
    content: "";
    position: absolute;
    inset: -4px;
    border-radius: 9999px;
    border: 2px solid rgba(37, 211, 102, 0.6);
    animation: whatsappPulse 2.2s infinite ease-out;
    pointer-events: none;
}

@keyframes whatsappPulse {
    0% {
        transform: scale(1);
        opacity: 0.85;
    }
    75% {
        transform: scale(1.32);
        opacity: 0;
    }
    100% {
        transform: scale(1.32);
        opacity: 0;
    }
}

/* Scroll Reveal Animations */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.75s cubic-bezier(0.16, 1, 0.3, 1), transform 0.75s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 80ms; }
.reveal-delay-2 { transition-delay: 150ms; }
.reveal-delay-3 { transition-delay: 220ms; }
.reveal-delay-4 { transition-delay: 80ms; }
.reveal-delay-5 { transition-delay: 150ms; }
.reveal-delay-6 { transition-delay: 220ms; }
.reveal-delay-7 { transition-delay: 80ms; }
.reveal-delay-8 { transition-delay: 150ms; }
.reveal-delay-9 { transition-delay: 220ms; }

@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
    .whatsapp-float-btn::before {
        animation: none;
    }
}

/* Additional Responsive & Utility Helpers */
.block { display: block; }
.underline { text-decoration: underline; }
.self-end { align-self: flex-end; }
.h-11 { height: 2.75rem; }
.mb-4 { margin-bottom: 1rem; }
.pt-4 { padding-top: 1rem; }
.pt-6 { padding-top: 1.5rem; }
.opacity-75 { opacity: 0.75; }
.opacity-85 { opacity: 0.85; }
.max-h-\[78vh\] { max-height: 78vh; }
.shadow-2xl { box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.75); }
.bg-\[\#25D366\] { background-color: #25D366; }
.text-\[\#25D366\] { color: #25D366; }
.hover\:opacity-80:hover { opacity: 0.8; }
.hover\:bg-\[var\(--button-color\)\]:hover { background-color: var(--button-color); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

@media (min-width: 640px) {
    .sm\:text-sm { font-size: 0.875rem; line-height: 1.25rem; }
}

@media (min-width: 1280px) {
    .xl\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}