:root {
    /* Color Palette - Extraída de CristianKeto.com */
    --primary-color: #ab002b; /* Deep Red (Principal) */
    --primary-dark: #7a001f;
    --primary-light: rgba(171, 0, 43, 0.15);
    
    --secondary-color: #ffc600; /* Vibrant Gold/Yellow */
    --secondary-dark: #cc9f00;
    --secondary-light: rgba(255, 198, 0, 0.15);

    --accent-color: #b9a16b; /* Muted Premium Gold */
    
    /* Dark Mode Defaults (Minimalist Premium Dark) */
    --bg-color: #121212; /* Deep Black/Dark Gray */
    --bg-surface: #181818; /* Elevated Dark Surface */
    --bg-surface-glass: rgba(24, 24, 24, 0.85);
    --text-main: #ffffff; /* Crisp White */
    --text-muted: #a0a0a0; /* Sophisticated Gray */
    --border-color: #282828; /* Subtle Borders */
    
    /* Layout & Spacing */
    --max-width: 1200px;
    --section-padding: 120px 20px;
    --border-radius: 12px; /* Slightly sharper for brutalist/minimalist premium feel */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Shadows */
    --shadow-sm: 0 4px 10px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 10px 25px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 25px rgba(171, 0, 43, 0.4);
}

[data-theme="light"] {
    --bg-color: #f8f8f8; /* Soft minimalist white */
    --bg-surface: #ffffff;
    --bg-surface-glass: rgba(255, 255, 255, 0.9);
    --text-main: #181818;
    --text-muted: #555555;
    --border-color: #e0e0e0;
    --shadow-glow: 0 10px 30px rgba(171, 0, 43, 0.15);
    --shadow-sm: 0 4px 10px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 10px 25px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

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

ul {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    outline: none;
    background: none;
}

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

/* Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--bg-color);
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* Utilities */
.section-container {
    max-width: var(--max-width);
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 15px;
    background: linear-gradient(135deg, var(--text-main), var(--primary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

/* Dark Mode Toggle (Floating) */
.dark-mode-toggle {
    position: fixed;
    bottom: 30px;
    left: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--text-main);
    cursor: pointer;
    z-index: 1000;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}
.dark-mode-toggle:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: var(--shadow-glow);
    color: var(--primary-color);
}

/* Navigation */
.premium-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--bg-surface-glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 999;
    transition: var(--transition-normal);
}

.premium-nav.scrolled {
    padding: 10px 0;
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 15px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-logo img.logo {
    height: 40px;
    width: 40px;
    object-fit: contain;
    border-radius: 8px;
    /* In case there's no logo image yet */
    background: var(--primary-light);
}

.nav-logo .logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--text-main);
}

.nav-menu {
    display: flex;
    gap: 30px;
}

.nav-link {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-muted);
    transition: var(--transition-fast);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition-normal);
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.theme-toggle, .mobile-toggle {
    font-size: 1.2rem;
    color: var(--text-main);
    transition: var(--transition-fast);
}

.theme-toggle:hover { color: var(--primary-color); }
.mobile-toggle { display: none; }

/* Force hamburger icon color to ensure visibility */
.mobile-toggle i { color: #ffffff; }
[data-theme="light"] .mobile-toggle i { color: #181818; }

@media (max-width: 900px) {
    .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--bg-surface);
        padding: 20px;
        box-shadow: var(--shadow-md);
        border-bottom: 1px solid var(--border-color);
        text-align: center;
        gap: 20px;
        z-index: 1000;
    }
    .nav-menu .nav-link {
        font-size: 1.1rem;
        color: var(--text-main);
    }
    .nav-menu.active {
        display: flex;
    }
    .mobile-toggle {
        display: block;
        font-size: 1.5rem;
    }
}

.premium-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: #fff;
    padding: 8px 20px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 15px var(--primary-light);
    transition: var(--transition-normal);
}

.premium-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

/* Hero Section */
.hero-section {
    position: relative;
    padding: 180px 20px 100px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.hero-bg-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
    opacity: 0.4;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 80% 20%, var(--primary-light) 0%, transparent 40%),
                radial-gradient(circle at 20% 80%, var(--secondary-light) 0%, transparent 40%);
    background-color: rgba(18, 18, 18, 0.7); /* Darken video to make text readable */
    z-index: 2;
}

.hero-content {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
    background: linear-gradient(to right, #ffffff, #cccccc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: fadeUp 0.8s ease forwards;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #e0e0e0;
    margin-bottom: 40px;
    animation: fadeUp 0.8s ease 0.2s forwards;
    opacity: 0;
}

.hero-stats {
    display: flex;
    gap: 30px;
    margin-bottom: 40px;
    animation: fadeUp 0.8s ease 0.4s forwards;
    opacity: 0;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1;
}

.stat-label {
    font-size: 0.9rem;
    color: #e0e0e0;
    font-weight: 500;
}

.hero-cta {
    display: flex;
    gap: 20px;
    animation: fadeUp 0.8s ease 0.6s forwards;
    opacity: 0;
}

.cta-primary, .cta-secondary {
    padding: 15px 30px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition-normal);
}

.cta-primary {
    background: var(--primary-color);
    color: #fff;
    box-shadow: 0 4px 15px var(--primary-light);
}

.cta-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.cta-secondary {
    background: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

.cta-secondary:hover {
    border-color: var(--text-main);
    background: var(--text-main);
    color: var(--bg-color);
    transform: translateY(-3px);
}

.hero-visual {
    position: relative;
    animation: fadeIn 1s ease 0.4s forwards;
    opacity: 0;
}

.hero-image-container {
    position: relative;
    border-radius: 30px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    background: var(--bg-surface);
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-image {
    width: 100%;
    height: auto;
    object-fit: contain;
    display: block;
}

.image-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, var(--primary-light) 0%, transparent 70%);
    z-index: -1;
    pointer-events: none;
}

.watermark-cover {
    position: absolute;
    bottom: 0;
    right: 0;
    background: var(--bg-surface-glass);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    padding: 10px 20px;
    border-radius: 16px 0 0 0;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 700;
    z-index: 10;
    border-top: 1px solid var(--border-color);
    border-left: 1px solid var(--border-color);
}
.watermark-cover i {
    color: var(--primary-color);
}

.progress-tracker {
    position: relative;
    background: var(--bg-surface-glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 20px 30px;
    border-radius: 20px;
    display: flex;
    gap: 40px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    width: 100%;
    margin-top: 30px;
    justify-content: space-around;
    flex-wrap: wrap;
}

.progress-step {
    display: flex;
    align-items: center;
    gap: 10px;
    opacity: 0.5;
    transition: var(--transition-normal);
}

.progress-step.active {
    opacity: 1;
}

.step-number {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--bg-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--text-muted);
    border: 1px solid var(--border-color);
}

.progress-step.active .step-number {
    background: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

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

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 50px;
    border: 2px solid var(--border-color);
    border-radius: 15px;
    display: flex;
    justify-content: center;
    padding-top: 10px;
}

.scroll-dot {
    width: 6px;
    height: 6px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: scroll 2s infinite;
}

/* Animations */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes scroll {
    0% { transform: translateY(0); opacity: 1; }
    100% { transform: translateY(20px); opacity: 0; }
}

/* About Section */
.about-section {
    padding: var(--section-padding);
    background: var(--bg-color);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image-container {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    background: var(--bg-surface);
    height: 600px;
}

.about-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.timeline {
    position: relative;
    padding-left: 30px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 2px;
    background: var(--border-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
}

.timeline-dot {
    position: absolute;
    left: -35px;
    top: 5px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--primary-color);
    border: 3px solid var(--bg-color);
    box-shadow: 0 0 0 2px var(--primary-color);
}

.timeline-content h4 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.timeline-content p {
    color: var(--text-muted);
}

/* Method Section */
.method-section {
    padding: var(--section-padding);
    background: var(--bg-surface);
}

.method-tabs {
    background: var(--bg-color);
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.tab-nav {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 10px 20px;
    font-size: 0.95rem;
    border-radius: 30px;
    background: var(--bg-surface);
    color: var(--text-muted);
    font-weight: 600;
    transition: var(--transition-normal);
    border: 1px solid var(--border-color);
}

.tab-btn.active, .tab-btn:hover {
    background: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
    box-shadow: 0 4px 15px var(--primary-light);
}

.tab-content {
    min-height: 300px;
}

.tab-pane {
    display: none;
    animation: fadeIn 0.5s ease;
}

.tab-pane.active {
    display: block;
}

.method-content h3 {
    font-size: 1.8rem;
    margin-bottom: 30px;
    text-align: center;
}

.pillars-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.pillar-card {
    text-align: center;
    padding: 30px 20px;
    background: var(--bg-surface);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.pillar-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.pillar-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

/* Plans Section */
.plans-section {
    padding: var(--section-padding);
}

.plans-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.plan-card {
    background: var(--bg-surface);
    border-radius: 24px;
    padding: 40px 30px;
    border: 1px solid var(--border-color);
    position: relative;
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.plan-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.plan-card.premium {
    border-color: var(--primary-color);
    transform: scale(1.05);
    background: linear-gradient(180deg, var(--bg-surface) 0%, rgba(46, 204, 113, 0.05) 100%);
}

.plan-card.premium:hover {
    transform: scale(1.05) translateY(-10px);
    box-shadow: var(--shadow-glow);
}

.plan-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: #fff;
    padding: 6px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.plan-header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
}

.plan-header h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.plan-price {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 5px;
}

.plan-price .currency {
    font-size: 1.5rem;
    font-weight: 600;
    margin-top: 5px;
}

.plan-price .amount {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1;
    color: var(--text-main);
}

.plan-price .period {
    align-self: flex-end;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.plan-features {
    flex-grow: 1;
    margin-bottom: 30px;
}

.plan-features li {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
    color: var(--text-muted);
}

.plan-features li i.fa-check { color: var(--primary-color); }
.plan-features li i.fa-times { color: #EF4444; opacity: 0.5; }

.plan-btn {
    width: 100%;
    padding: 15px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    background: var(--bg-color);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.plan-card.premium .plan-btn {
    background: var(--primary-color);
    color: #fff;
    border: none;
}

.plan-btn:hover {
    background: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

/* Testimonials */
.testimonials-section {
    padding: var(--section-padding);
    background: var(--bg-surface);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.testimonial-card {
    background: var(--bg-color);
    padding: 30px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.testimonial-rating {
    color: #F59E0B;
    margin-bottom: 15px;
}

.testimonial-text {
    font-style: italic;
    color: var(--text-muted);
    margin-bottom: 25px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    background: var(--bg-surface);
}

.author-info h4 {
    font-size: 1rem;
    margin-bottom: 2px;
}

.author-info p {
    font-size: 0.85rem;
    color: var(--primary-color);
}

/* Contact */
.contact-section {
    padding: var(--section-padding);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 20px;
    background: var(--bg-surface);
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.info-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background: var(--primary-light);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.contact-form {
    background: var(--bg-surface);
    padding: 40px;
    border-radius: 24px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-muted);
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 15px;
    border-radius: 12px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    font-family: inherit;
    transition: var(--transition-normal);
}

.form-group input:focus, .form-group textarea:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px var(--primary-light);
}

.submit-btn {
    width: 100%;
    padding: 16px;
    border-radius: 12px;
    background: var(--primary-color);
    color: #fff;
    font-weight: 600;
    font-size: 1.1rem;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    transition: var(--transition-normal);
}

.submit-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

/* Chatbot */
.chatbot-toggle {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--primary-color);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: 0 10px 20px var(--primary-light);
    z-index: 1000;
    transition: var(--transition-normal);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.chatbot-toggle:hover {
    transform: scale(1.1);
    animation: none;
}

.chatbot-container {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 350px;
    background: var(--bg-surface);
    border-radius: 20px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    overflow: hidden;
    transform: translateY(20px);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-normal);
}

.chatbot-container.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
}

.chatbot-header {
    padding: 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: #fff;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chatbot-messages {
    height: 300px;
    overflow-y: auto;
    padding: 20px;
    background: var(--bg-color);
}

.chatbot-message {
    margin-bottom: 15px;
}

.chatbot-message .message-content {
    padding: 12px 16px;
    border-radius: 16px;
    font-size: 0.9rem;
    max-width: 85%;
}

.chatbot-message.bot .message-content {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-bottom-left-radius: 4px;
}

.chatbot-message.user {
    display: flex;
    justify-content: flex-end;
}

.chatbot-message.user .message-content {
    background: var(--primary-color);
    color: #fff;
    border-bottom-right-radius: 4px;
}

.chatbot-input {
    display: flex;
    padding: 15px;
    background: var(--bg-surface);
    border-top: 1px solid var(--border-color);
}

.chatbot-input input {
    flex-grow: 1;
    padding: 10px 15px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    background: var(--bg-color);
    color: var(--text-main);
    outline: none;
}

.chatbot-input button {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-color);
    color: #fff;
    margin-left: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Premium Modal */
.premium-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-normal);
}

.premium-modal.active {
    opacity: 1;
    pointer-events: all;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal-content {
    position: relative;
    background: var(--bg-surface);
    width: 90%;
    max-width: 600px;
    border-radius: 24px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    transform: scale(0.9);
    transition: var(--transition-normal);
}

.premium-modal.active .modal-content {
    transform: scale(1);
}

.modal-header {
    padding: 25px 30px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-close {
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--text-muted);
}

.modal-body {
    padding: 30px;
}

.modal-footer {
    padding: 20px 30px;
    background: var(--bg-color);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 15px;
}

.modal-btn {
    padding: 12px 25px;
    border-radius: 12px;
    font-weight: 600;
}

.modal-btn.primary {
    background: var(--primary-color);
    color: #fff;
}

.modal-btn.secondary {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-main);
}

/* Footer */
.footer {
    background: var(--bg-surface);
    padding-top: 80px;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    padding: 0 20px 60px;
}

.footer-section h4 {
    margin-bottom: 20px;
    color: var(--text-main);
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: var(--text-muted);
    transition: var(--transition-fast);
}

.footer-section ul li a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding: 25px 20px;
    text-align: center;
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 992px) {
    .hero-content, .about-content, .contact-content {
        grid-template-columns: 1fr;
    }
    
    .hero-text { text-align: center; }
    .hero-stats { justify-content: center; }
    .hero-cta { justify-content: center; }
}

@media (max-width: 768px) {
    .nav-menu { display: none; }
    .mobile-toggle { display: block; }
    .section-title { font-size: 2rem; }
    .hero-title { font-size: 2.5rem; }
}

/* Comparison Table */
.comparison-table { margin-top: 60px; background: var(--bg-surface); border-radius: var(--border-radius); padding: 30px; border: 1px solid var(--border-color); box-shadow: var(--shadow-md); overflow-x: auto; }
.comparison-table h3 { text-align: center; margin-bottom: 30px; font-size: 1.8rem; }
.comparison-table table { width: 100%; border-collapse: collapse; min-width: 600px; }
.comparison-table th, .comparison-table td { padding: 15px 20px; text-align: left; border-bottom: 1px solid var(--border-color); }
.comparison-table th { background: var(--bg-color); color: var(--text-muted); font-weight: 600; }
.comparison-table tr:last-child td { border-bottom: none; }
.comparison-table td:first-child { font-weight: 600; color: var(--primary-color); }

/* Blog Section */
.blog-section { padding: var(--section-padding); background: var(--bg-color); }
.blog-categories { display: flex; justify-content: center; gap: 15px; margin-bottom: 40px; flex-wrap: wrap; }
.category-btn { padding: 10px 20px; border-radius: 30px; background: var(--bg-surface); color: var(--text-main); border: 1px solid var(--border-color); transition: var(--transition-normal); }
.category-btn.active, .category-btn:hover { background: var(--primary-color); color: #fff; border-color: var(--primary-color); }
.blog-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.blog-card { background: var(--bg-surface); border-radius: var(--border-radius); overflow: hidden; border: 1px solid var(--border-color); transition: var(--transition-normal); }
.blog-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.blog-category { position: absolute; top: 15px; left: 15px; background: var(--primary-color); color: #fff; padding: 5px 15px; border-radius: 20px; font-size: 0.8rem; font-weight: 600; }
.blog-image { position: relative; }
.blog-image img { width: 100%; height: 200px; object-fit: cover; display: block; }
.blog-content { padding: 25px; }
.blog-meta { display: flex; justify-content: space-between; color: var(--text-muted); font-size: 0.85rem; margin-bottom: 15px; }
.blog-content h3 { font-size: 1.3rem; margin-bottom: 15px; line-height: 1.4; }
.blog-content p { color: var(--text-muted); margin-bottom: 20px; }
.read-more { color: var(--primary-color); font-weight: 600; }

/* Newsletter Section */
.newsletter-section { margin-top: 80px; background: linear-gradient(135deg, var(--bg-surface), var(--primary-light)); border-radius: var(--border-radius); padding: 60px 30px; text-align: center; border: 1px solid var(--border-color); }
.newsletter-content h3 { font-size: 2rem; margin-bottom: 15px; }
.newsletter-content p { color: var(--text-muted); margin-bottom: 30px; }
.newsletter-form { display: flex; max-width: 500px; margin: 0 auto; gap: 10px; }
.newsletter-form input { flex-grow: 1; padding: 15px 25px; border-radius: 30px; border: 1px solid var(--border-color); background: var(--bg-color); color: var(--text-main); outline: none; }
.newsletter-form button { padding: 15px 30px; border-radius: 30px; background: var(--primary-color); color: #fff; font-weight: 600; }


/* Footer Form Fixes */
.footer-form { display: flex; gap: 10px; margin-top: 15px; }
.footer-form input { flex-grow: 1; padding: 12px 20px; border-radius: 30px; border: 1px solid var(--border-color); background: var(--bg-surface); color: var(--text-main); outline: none; }
.footer-form button { padding: 12px 25px; border-radius: 30px; background: var(--primary-color); color: #fff; font-weight: 600; cursor: pointer; border: none; transition: var(--transition-fast); }
.footer-form button:hover { background: var(--primary-dark); transform: scale(1.05); }

/* =============================================
   CALCULADORA KETOPOWER
   ============================================= */
.calc-section {
    padding: var(--section-padding);
    background: var(--bg-surface);
    position: relative;
    overflow: hidden;
}

.calc-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 15% 20%, var(--primary-light) 0%, transparent 35%),
        radial-gradient(circle at 85% 80%, var(--secondary-light) 0%, transparent 30%);
    pointer-events: none;
}

.calc-container {
    display: grid;
    grid-template-columns: 0.92fr 1.08fr;
    gap: 28px;
    align-items: start;
    position: relative;
    z-index: 1;
}

/* --- Hero / Info Panel --- */
.calc-hero {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 38px;
    position: sticky;
    top: 100px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.calc-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px),
        linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px);
    background-size: 34px 34px;
    mask-image: linear-gradient(to bottom, black, transparent 82%);
    -webkit-mask-image: linear-gradient(to bottom, black, transparent 82%);
    pointer-events: none;
}

.calc-hero::after {
    content: "";
    position: absolute;
    width: 220px;
    height: 220px;
    right: -80px;
    top: -80px;
    background: radial-gradient(circle, var(--primary-light) 0%, transparent 70%);
    border-radius: 999px;
    pointer-events: none;
}

.calc-hero-content { position: relative; z-index: 2; }

.calc-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 30px;
    background: var(--primary-light);
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.calc-hero-title {
    font-size: clamp(1.8rem, 3vw, 2.8rem);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -1.5px;
    margin-bottom: 16px;
    color: var(--text-main);
}

.calc-hero-title span {
    background: linear-gradient(135deg, var(--primary-color), #ffc600);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.calc-hero-desc {
    color: var(--text-muted);
    font-size: 1rem;
    line-height: 1.65;
    margin-bottom: 24px;
}

.calc-mini-panel {
    padding: 20px;
    border-radius: 18px;
    background: linear-gradient(135deg, var(--primary-light), var(--secondary-light));
    border: 1px solid var(--border-color);
    margin-bottom: 24px;
}

.calc-mini-panel strong {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    font-size: 0.95rem;
    margin-bottom: 8px;
}

.calc-mini-panel span {
    color: var(--text-muted);
    line-height: 1.55;
    font-size: 0.9rem;
}

.calc-benefits { display: grid; gap: 12px; }

.calc-benefit {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    padding: 16px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    color: var(--text-muted);
    line-height: 1.5;
    font-size: 0.9rem;
    transition: var(--transition-normal);
}

.calc-benefit:hover {
    border-color: var(--primary-color);
    transform: translateX(4px);
}

.calc-benefit strong { color: var(--text-main); }

.calc-dot {
    flex: 0 0 28px;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--primary-color);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    margin-top: 2px;
}

/* --- Form Card --- */
.calc-form-card {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 32px;
    box-shadow: var(--shadow-md);
}

.calc-form-title {
    margin-bottom: 24px;
}

.calc-form-title h3 {
    font-size: 1.6rem;
    font-weight: 800;
    margin-bottom: 8px;
    color: var(--text-main);
}

.calc-form-title p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.calc-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.calc-field { margin-bottom: 4px; }
.calc-field.full { grid-column: 1 / -1; }

.calc-field label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-main);
    font-size: 0.85rem;
    font-weight: 700;
}

.calc-field input,
.calc-field select {
    width: 100%;
    height: 50px;
    border-radius: 14px;
    border: 1px solid var(--border-color);
    background: var(--bg-surface);
    color: var(--text-main);
    padding: 0 16px;
    outline: none;
    font-size: 0.95rem;
    font-family: inherit;
    transition: var(--transition-fast);
}

.calc-field input:focus,
.calc-field select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.calc-field select option {
    background: var(--bg-color);
    color: var(--text-main);
}

/* --- Objectives radio cards --- */
.calc-objectives {
    display: grid;
    gap: 12px;
    margin-bottom: 18px;
}

.calc-option { position: relative; }

.calc-option input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.calc-option label {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 18px;
    border-radius: 18px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition-normal);
}

.calc-option label:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.calc-option-icon {
    flex: 0 0 42px;
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: var(--primary-light);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.calc-option label strong {
    display: block;
    font-size: 1rem;
    margin-bottom: 4px;
    color: var(--text-main);
}

.calc-option label span {
    display: block;
    color: var(--text-muted);
    font-size: 0.85rem;
    line-height: 1.45;
    font-weight: 400;
}

.calc-option input:checked + label {
    border-color: var(--primary-color);
    background: linear-gradient(145deg, var(--primary-light), var(--secondary-light));
    box-shadow: 0 0 0 3px var(--primary-light), var(--shadow-sm);
}

.calc-option input:checked + label .calc-option-icon {
    background: var(--primary-color);
    color: #fff;
}

/* --- Warning & Error --- */
.calc-warning-box {
    display: none;
    padding: 16px;
    border-radius: 16px;
    background: var(--secondary-light);
    border: 1px solid rgba(255, 198, 0, 0.4);
    color: var(--text-main);
    line-height: 1.55;
    margin: 16px 0;
    font-size: 0.9rem;
}

.calc-warning-box i {
    color: #ffc600;
    margin-right: 6px;
}

.calc-warning-box.show { display: block; }

.calc-error {
    display: none;
    padding: 16px;
    border-radius: 16px;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.35);
    color: #ff8a8a;
    line-height: 1.55;
    margin-bottom: 16px;
    font-size: 0.9rem;
}

.calc-error.show { display: block; }

/* --- Buttons --- */
.calc-btn-primary {
    width: 100%;
    border: 0;
    border-radius: 16px;
    padding: 17px 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: #ffffff;
    font-weight: 800;
    font-size: 1rem;
    font-family: inherit;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    box-shadow: 0 8px 24px var(--primary-light);
    transition: var(--transition-normal);
}

.calc-btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.calc-btn-secondary {
    width: 100%;
    border-radius: 16px;
    padding: 15px 20px;
    background: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-color);
    font-weight: 600;
    font-size: 0.95rem;
    font-family: inherit;
    cursor: pointer;
    margin-top: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: var(--transition-normal);
}

.calc-btn-secondary:hover {
    border-color: var(--text-main);
    background: var(--bg-surface);
}

/* --- Results Panel --- */
.calc-results {
    display: none;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 36px;
    margin-top: 28px;
    box-shadow: var(--shadow-lg);
    position: relative;
    z-index: 1;
    animation: fadeUp 0.6s ease;
}

.calc-results.show { display: block; }

.calc-results-header {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    align-items: flex-start;
    margin-bottom: 28px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

.calc-results-header h3 {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 8px;
    color: var(--text-main);
}

.calc-results-header p {
    color: var(--text-muted);
    line-height: 1.5;
    font-size: 0.95rem;
}

.calc-score { text-align: right; min-width: 160px; }

.calc-score span {
    display: block;
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

.calc-score strong {
    font-size: 2.5rem;
    color: var(--primary-color);
    line-height: 1;
}

.calc-score small {
    display: block;
    color: var(--text-main);
    margin-top: 4px;
    font-weight: 600;
}

.calc-result-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin-bottom: 24px;
}

.calc-result-card {
    padding: 20px;
    border-radius: 18px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.calc-result-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-3px);
}

.calc-result-card span {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-bottom: 10px;
    font-weight: 600;
}

.calc-result-card span i { color: var(--primary-color); }

.calc-result-card strong {
    display: block;
    color: var(--text-main);
    font-size: 1.6rem;
    line-height: 1;
}

.calc-result-card small {
    display: block;
    color: var(--text-muted);
    margin-top: 8px;
    font-size: 0.75rem;
}

.calc-macro-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin-bottom: 24px;
}

.calc-macro {
    padding: 24px;
    border-radius: 20px;
    background: linear-gradient(145deg, var(--primary-light), var(--secondary-light));
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.calc-macro:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.calc-macro span {
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    font-size: 0.8rem;
    font-weight: 600;
}

.calc-macro span i { color: var(--primary-color); }

.calc-macro strong {
    display: block;
    font-size: 2rem;
    color: var(--primary-color);
    line-height: 1;
}

.calc-macro small {
    display: block;
    color: var(--text-muted);
    margin-top: 8px;
    font-size: 0.8rem;
}

/* --- Recommendation --- */
.calc-recommendation {
    padding: 24px;
    background: linear-gradient(145deg, var(--primary-light), var(--secondary-light));
    border: 1px solid var(--border-color);
    border-radius: 20px;
    color: var(--text-main);
    line-height: 1.65;
    margin-bottom: 24px;
    font-size: 0.95rem;
}

.calc-recommendation strong { color: var(--primary-color); }

/* --- CTA Row --- */
.calc-cta-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.calc-link-btn {
    display: flex;
    min-height: 54px;
    align-items: center;
    justify-content: center;
    gap: 10px;
    text-align: center;
    border-radius: 16px;
    padding: 14px 16px;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.9rem;
    transition: var(--transition-normal);
}

.calc-link-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.calc-link-btn.whatsapp {
    background: #25D366;
    color: #fff;
}

.calc-link-btn.agenda {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: #fff;
}

.calc-link-btn.plan {
    background: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

.calc-link-btn.plan:hover {
    border-color: var(--primary-color);
    background: var(--primary-light);
}

/* --- Disclaimer --- */
.calc-disclaimer {
    margin-top: 24px;
    color: var(--text-muted);
    font-size: 0.78rem;
    line-height: 1.6;
    display: flex;
    gap: 8px;
    align-items: flex-start;
}

.calc-disclaimer i { margin-top: 3px; flex-shrink: 0; }

/* --- Calculator Responsive --- */
@media (max-width: 992px) {
    .calc-container { grid-template-columns: 1fr; }
    .calc-hero { position: relative; top: auto; }
    .calc-result-grid { grid-template-columns: repeat(2, 1fr); }
    .calc-macro-grid { grid-template-columns: 1fr; }
    .calc-cta-row { grid-template-columns: 1fr; }
    .calc-results-header { flex-direction: column; }
    .calc-score { text-align: left; }
}

@media (max-width: 768px) {
    .calc-hero, .calc-form-card, .calc-results { padding: 22px; border-radius: 20px; }
    .calc-grid { grid-template-columns: 1fr; }
    .calc-result-grid { grid-template-columns: 1fr; }
    .calc-hero-title { font-size: 1.8rem; }
}