/* ==========================================================================
   CSS Variables & Design Tokens (Editorial Luxury Aesthetic)
   ========================================================================== */
:root {
    /* Color Palette */
    --color-bg: #FDFBF7;           /* Warm Luxury Cream */
    --color-bg-alt: #F6F3EC;       /* Medium Warm Sand */
    --color-bg-dark: #1C120C;      /* Deep Dark Espresso */
    --color-bg-dark-accent: #261B14; /* Muted Espresso Variant */
    --color-text: #2A1F18;         /* Soft Charcoal Espresso */
    --color-text-light: #5A4C42;   /* Muted Clay Gray */
    --color-text-inverse: #FDFBF7; /* Cream on Dark */
    --color-accent: #C5A880;       /* Refined Gold/Bronze */
    --color-accent-hover: #AB8E67;
    --color-accent-muted: rgba(197, 168, 128, 0.15);
    --color-border: rgba(28, 18, 12, 0.08);
    --color-border-dark: rgba(253, 251, 247, 0.12);

    /* Typography */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 10rem;            /* Generous Macro Spacing */

    /* Radii & Borders */
    --radius-bezel-outer: 2rem;
    --radius-bezel-inner: calc(2rem - 0.5rem);
    --radius-btn: 100px;           /* Perfect pill button */
    
    /* Transitions (Spring-like Cubic Bezier) */
    --transition-premium: all 0.7s cubic-bezier(0.32, 0.72, 0, 1);
    --transition-fast: all 0.2s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* ==========================================================================
   Reset & Base Styles
   ========================================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.7;
    font-size: 16px;
    overflow-x: hidden;
    letter-spacing: -0.01em;
}

/* Noise overlay for paper physical feel */
.noise-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 50;
    opacity: 0.025;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 500;
    line-height: 1.15;
    color: var(--color-bg-dark);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-premium);
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

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

/* Eyebrow badge */
.eyebrow-tag {
    display: inline-block;
    background-color: var(--color-accent-muted);
    color: var(--color-accent-hover);
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    padding: 0.35rem 0.85rem;
    border-radius: 100px;
    margin-bottom: var(--space-md);
}

.eyebrow-tag.accent {
    background-color: rgba(255, 255, 255, 0.08);
    color: var(--color-accent);
}

.section-title {
    font-size: 3.5rem;
    font-weight: 500;
    margin-bottom: var(--space-lg);
    max-width: 800px;
    letter-spacing: -0.02em;
}

.section-title.left-align {
    text-align: left;
}

/* ==========================================================================
   Double-Bezel Hardware Architecture
   ========================================================================== */
.outer-shell {
    background: rgba(28, 18, 12, 0.02);
    border: 1px solid var(--color-border);
    padding: 0.5rem;
    border-radius: var(--radius-bezel-outer);
    transition: var(--transition-premium);
}

.inner-core {
    background: var(--color-bg);
    border-radius: var(--radius-bezel-inner);
    overflow: hidden;
    transition: var(--transition-premium);
}

/* For image wrapping cores */
.image-container img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-premium);
}

/* Hover effects for double-bezel content */
.outer-shell:hover {
    border-color: var(--color-accent);
    transform: translateY(-4px);
    box-shadow: 0 15px 40px rgba(28, 18, 12, 0.05);
}

.outer-shell:hover img {
    transform: scale(1.03);
}

/* Dark mode variations for shells */
.dark-section .outer-shell {
    background: rgba(255, 255, 255, 0.03);
    border-color: var(--color-border-dark);
}

.dark-section .inner-core {
    background: var(--color-bg-dark-accent);
}

/* ==========================================================================
   Buttons with Nested Icon Island
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 0.5rem 0.5rem 2rem;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius-btn);
    cursor: pointer;
    transition: var(--transition-premium);
    border: none;
    gap: 1.5rem;
}

.btn-icon {
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    transition: var(--transition-premium);
}

/* Button Variants */
.btn-primary {
    background-color: var(--color-accent);
    color: var(--color-bg-dark);
}

.btn-primary .btn-icon {
    background-color: var(--color-bg-dark);
    color: var(--color-accent);
}

.btn-primary:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(197, 168, 128, 0.25);
}

.btn-primary:hover .btn-icon {
    transform: translate(1px, -1px) scale(1.05);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-text-inverse);
    border: 1px solid rgba(253, 251, 247, 0.2);
    padding: 0.85rem 2rem;
}

.btn-secondary:hover {
    background-color: rgba(253, 251, 247, 0.05);
    border-color: var(--color-text-inverse);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-bg-dark);
    border: 1px solid var(--color-bg-dark);
}

.btn-outline .btn-icon {
    background-color: var(--color-bg-dark);
    color: var(--color-bg);
}

.btn-outline:hover {
    background-color: var(--color-bg-dark);
    color: var(--color-text-inverse);
}

.btn-outline:hover .btn-icon {
    background-color: var(--color-accent);
    color: var(--color-bg-dark);
    transform: translate(1px, -1px);
}

.btn-block {
    width: 100%;
}

/* ==========================================================================
   Header (Floating Pill Glass)
   ========================================================================== */
.header-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: var(--space-sm) 0;
    z-index: 1000;
}

.header {
    background-color: rgba(253, 251, 247, 0.85);
    backdrop-filter: blur(16px);
    border: 1px solid var(--color-border);
    border-radius: 100px;
    height: 70px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 var(--space-md);
    box-shadow: var(--shadow-subtle);
    max-width: 1100px;
    margin: 0 auto;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-bg-dark);
}

.logo span {
    color: var(--color-accent);
}

.nav {
    display: flex;
    gap: var(--space-md);
    align-items: center;
}

.nav a:not(.btn) {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text);
}

.nav a:not(.btn):hover {
    color: var(--color-accent);
}

/* ==========================================================================
   Hero Section (Editorial Split)
   ========================================================================== */
.hero {
    display: flex;
    align-items: center;
    padding-top: 140px; /* Offset for floating header */
    padding-bottom: var(--space-xl);
    position: relative;
}

.hero-inner {
    display: grid;
    grid-template-columns: 55% 45%;
    gap: var(--space-lg);
    align-items: center;
}

.hero-title {
    font-size: 4.2rem;
    margin-bottom: var(--space-md);
    letter-spacing: -0.03em;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--color-text-light);
    max-width: 620px;
    margin-bottom: var(--space-lg);
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: var(--space-sm);
    align-items: center;
}

.hero-visual {
    width: 100%;
}

.hero-visual .image-container {
    aspect-ratio: 4/4;
}

/* ==========================================================================
   Problemas Section
   ========================================================================== */
.dark-section {
    background-color: var(--color-bg-dark);
    color: var(--color-text-inverse);
}

.dark-section h2, .dark-section h3 {
    color: var(--color-text-inverse);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.card {
    padding: var(--space-md);
    height: 100%;
}

.card-icon {
    font-size: 2.2rem;
    margin-bottom: var(--space-sm);
    color: var(--color-accent);
}

.card-title {
    font-size: 1.35rem;
    margin-bottom: var(--space-sm);
    font-weight: 500;
}

.card p {
    color: rgba(253, 251, 247, 0.7);
    font-size: 0.95rem;
}

.problemas-conclusion {
    text-align: center;
    margin-top: var(--space-lg);
    font-size: 1.6rem;
    font-family: var(--font-heading);
    color: var(--color-accent);
    font-style: italic;
}

/* ==========================================================================
   Solución Section
   ========================================================================== */
.solucion-content {
    display: grid;
    grid-template-columns: 50% 50%;
    gap: var(--space-lg);
    align-items: center;
}

.solucion-text p {
    font-size: 1.05rem;
    margin-bottom: var(--space-sm);
    color: var(--color-text-light);
}

.solucion-visual .image-container {
    aspect-ratio: 16/11;
}

/* ==========================================================================
   Servicios (Bento Grid)
   ========================================================================== */
.gray-section {
    background-color: var(--color-bg-alt);
}

.bento-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 280px;
    gap: var(--space-sm);
}

.bento-item {
    background: var(--color-bg);
    padding: var(--space-md);
    border-radius: var(--radius-bezel-outer);
    border: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    transition: var(--transition-premium);
}

.bento-item:hover {
    border-color: var(--color-accent);
    transform: translateY(-4px);
    box-shadow: 0 15px 40px rgba(28, 18, 12, 0.04);
}

.bento-item h3 {
    font-size: 1.35rem;
    margin-bottom: var(--space-xs);
    font-weight: 500;
}

.bento-item p {
    color: var(--color-text-light);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* Main Feature */
.main-feature {
    grid-column: span 2;
    grid-row: span 2;
    background-color: var(--color-bg-dark);
    color: var(--color-text-inverse);
    padding: var(--space-md);
    display: grid;
    grid-template-columns: 55% 45%;
    align-items: center;
    gap: var(--space-sm);
    overflow: hidden;
}

.main-feature h3 {
    color: var(--color-accent);
    font-size: 2.2rem;
}

.main-feature p {
    color: rgba(253, 251, 247, 0.8);
    font-size: 1.05rem;
}

.bento-image {
    width: 100%;
    height: 90%;
}

.bento-image .image-container {
    height: 100%;
}

.feature-1 { grid-column: span 1; grid-row: span 1; }
.feature-2 { grid-column: span 1; grid-row: span 1; }
.feature-3 { grid-column: span 2; grid-row: span 1; justify-content: center; }
.feature-4 { grid-column: span 1; grid-row: span 1; }

/* ==========================================================================
   Metodología (Step-by-step)
   ========================================================================== */
.stepper {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
    position: relative;
    margin-top: var(--space-lg);
}

.stepper::before {
    content: '';
    position: absolute;
    top: 25px;
    left: 12%;
    right: 12%;
    height: 1px;
    background: rgba(253, 251, 247, 0.15);
    z-index: 0;
}

.step {
    position: relative;
    z-index: 1;
}

.step-number {
    width: 50px;
    height: 50px;
    background: var(--color-bg-dark);
    border: 1px solid var(--color-accent);
    color: var(--color-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    font-weight: 600;
    font-family: var(--font-body);
    margin-bottom: var(--space-sm);
}

.step h4 {
    margin-bottom: var(--space-xs);
    font-size: 1.25rem;
}

.step p {
    color: rgba(253, 251, 247, 0.7);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ==========================================================================
   FAQ Section
   ========================================================================== */
.accordion {
    max-width: 800px;
    margin: var(--space-md) auto 0;
}

.accordion-item {
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--space-xs);
}

.accordion-header {
    width: 100%;
    background: none;
    border: none;
    text-align: left;
    padding: var(--space-sm) 0;
    font-size: 1.15rem;
    font-family: var(--font-body);
    color: var(--color-bg-dark);
    font-weight: 500;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.accordion-header .icon {
    font-size: 1.4rem;
    color: var(--color-accent);
    transition: transform 0.3s ease;
}

.accordion-header.active .icon {
    transform: rotate(45deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.accordion-content p {
    padding-bottom: var(--space-sm);
    color: var(--color-text-light);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ==========================================================================
   Footer & Qualify Form
   ========================================================================== */
.footer-content {
    display: grid;
    grid-template-columns: 45% 55%;
    gap: var(--space-lg);
    align-items: flex-start;
    margin-bottom: var(--space-lg);
}

.footer-text h2 {
    font-size: 3.8rem;
    margin-bottom: var(--space-md);
    line-height: 1.1;
}

.footer-text p {
    font-size: 1.1rem;
    color: rgba(253, 251, 247, 0.8);
}

.form-container {
    background: var(--color-bg);
    padding: var(--space-md);
    color: var(--color-text);
}

.form-group {
    margin-bottom: var(--space-sm);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-xs);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-light);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.85rem 1.1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 0.95rem;
    background-color: var(--color-bg-alt);
    transition: var(--transition-fast);
    color: var(--color-text);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(197, 168, 128, 0.15);
}

.form-success {
    margin-top: var(--space-sm);
    padding: 1rem;
    background-color: rgba(197, 168, 128, 0.1);
    border: 1px solid var(--color-accent);
    color: var(--color-accent-hover);
    border-radius: var(--radius-sm);
    text-align: center;
    font-weight: 500;
}

.btn-form {
    padding: 0.5rem 0.5rem 0.5rem 2rem;
    margin-top: var(--space-sm);
}

.copyright {
    text-align: center;
    border-top: 1px solid rgba(253, 251, 247, 0.08);
    padding-top: var(--space-md);
    color: rgba(253, 251, 247, 0.4);
    font-size: 0.85rem;
}

/* ==========================================================================
   Animations
   ========================================================================== */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: all 0.8s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

.fade-in-up {
    animation: fadeInUp 0.9s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(32px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 768px) {
    .hide-on-mobile {
        display: none !important;
    }
}

@media (max-width: 992px) {
    .hero-inner { grid-template-columns: 1fr; gap: var(--space-lg); text-align: center; }
    .hero-title { font-size: 3.2rem; }
    .hero-subtitle { margin: 0 auto var(--space-lg); }
    .hero-actions { justify-content: center; }
    .hero-visual { max-width: 500px; margin: 0 auto; }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .solucion-content { grid-template-columns: 1fr; gap: var(--space-md); }
    .bento-grid { grid-template-columns: repeat(2, 1fr); grid-auto-rows: auto; }
    .main-feature { grid-column: span 2; grid-template-columns: 1fr; }
    .feature-3 { grid-column: span 2; }
    .feature-4 { grid-column: span 2; }
    .bento-image { display: none; } /* Hide layout component on tablet/mobile bento to keep it clean */
    .stepper::before { display: none; }
    .stepper { grid-template-columns: repeat(2, 1fr); gap: var(--space-md); }
    .footer-content { grid-template-columns: 1fr; text-align: center; }
}

@media (max-width: 768px) {
    :root {
        --space-xl: 6rem;
    }
    .header { width: calc(100% - 20px); }
    .nav { display: none; } /* Hidden on mobile */
    .hero-title { font-size: 2.25rem; }
    .hero-actions { flex-direction: column; width: 100%; }
    .btn { width: 100%; }
    .grid-3 { grid-template-columns: 1fr; }
    .bento-grid { grid-template-columns: 1fr; }
    .main-feature { grid-column: span 1; }
    .feature-3 { grid-column: span 1; }
    .feature-4 { grid-column: span 1; }
    .stepper { grid-template-columns: 1fr; }
}

/* ==========================================================================
   WhatsApp Floating Widget & Chat Box
   ========================================================================== */
.whatsapp-widget {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 999;
    font-family: var(--font-body);
}

.whatsapp-button {
    background-color: #25D366;
    color: white;
    padding: 0.85rem 1.5rem;
    border-radius: 100px;
    box-shadow: 0 10px 30px rgba(37, 211, 102, 0.3);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    transition: var(--transition-premium);
    border: 1px solid rgba(255,255,255,0.1);
}

.whatsapp-button:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 15px 35px rgba(37, 211, 102, 0.4);
}

.wa-icon {
    font-size: 1.3rem;
}

.wa-text {
    font-size: 0.9rem;
    font-weight: 600;
}

.whatsapp-chat-box {
    position: absolute;
    bottom: 80px;
    right: 0;
    width: 360px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-bezel-outer);
    box-shadow: var(--shadow-medium);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    opacity: 0;
    transform: translateY(20px) scale(0.95);
    pointer-events: none;
    transition: var(--transition-premium);
}

.whatsapp-chat-box.active {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: all;
}

.chat-header {
    background-color: var(--color-bg-dark);
    color: var(--color-text-inverse);
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.85rem;
    position: relative;
}

.chat-header .avatar {
    width: 40px;
    height: 40px;
    background-color: var(--color-accent-muted);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    border: 1px solid var(--color-accent);
}

.chat-title h4 {
    color: var(--color-text-inverse);
    font-size: 1rem;
    margin: 0;
    font-family: var(--font-body);
    font-weight: 600;
}

.chat-title span {
    font-size: 0.75rem;
    color: #25D366;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.chat-title span::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    background-color: #25D366;
    border-radius: 50%;
}

.chat-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    color: var(--color-text-inverse);
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0.7;
    transition: var(--transition-fast);
}

.chat-close:hover {
    opacity: 1;
}

.chat-body {
    padding: 1.5rem;
    background-color: var(--color-bg-alt);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.chat-message {
    padding: 0.95rem 1.1rem;
    border-radius: var(--radius-bezel-inner);
    font-size: 0.9rem;
    line-height: 1.5;
    max-width: 85%;
}

.chat-message.bot {
    background-color: var(--color-bg);
    color: var(--color-text);
    align-self: flex-start;
    border-top-left-radius: 0;
    border: 1px solid var(--color-border);
}

.chat-message.user {
    background-color: #E2F8EC;
    color: #1C120C;
    align-self: flex-end;
    border-top-right-radius: 0;
    border: 1px solid rgba(37, 211, 102, 0.2);
}

.chat-message.user-option {
    background-color: var(--color-accent);
    color: var(--color-bg-dark);
    font-weight: 600;
    align-self: center;
    max-width: 100%;
    cursor: pointer;
    text-align: center;
    border-radius: 100px;
    padding: 0.75rem 1.5rem;
    transition: var(--transition-premium);
    box-shadow: 0 4px 15px rgba(197, 168, 128, 0.2);
}

.chat-message.user-option:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-2px);
}

/* ==========================================================================
   Cookie Banner
   ========================================================================== */
.cookie-banner {
    position: fixed;
    bottom: -100%;
    left: 20px;
    right: 20px;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    box-shadow: 0 10px 40px rgba(0,0,0,0.5);
    z-index: 99999;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: bottom 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.cookie-banner.show {
    bottom: 20px;
}

.cookie-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.cookie-content p {
    font-size: 0.85rem;
    color: var(--color-text);
    margin: 0;
    line-height: 1.5;
}

.cookie-content a {
    color: var(--color-accent);
    text-decoration: underline;
}

.cookie-buttons {
    display: flex;
    justify-content: flex-end;
}

@media (min-width: 768px) {
    .cookie-banner {
        max-width: 500px;
        left: auto;
        right: 20px;
    }
}