/* Estilos Generales y Sistema de Diseño VitaAqua */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
    --color-primary: #0284c7;
    --color-primary-dark: #0369a1;
    --color-primary-light: #e0f2fe;
    --color-secondary: #0d9488;
    --color-secondary-light: #ccfbf1;
    --color-accent: #38bdf8;
    --color-bg: #f8fafc;
    --color-bg-light: #ffffff;
    --color-text: #0f172a;
    --color-text-muted: #475569;
    --color-text-light: #94a3b8;
    --color-border: #e2e8f0;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 24px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 10px 25px -5px rgba(2, 132, 199, 0.08), 0 8px 10px -6px rgba(2, 132, 199, 0.04);
    --shadow-lg: 0 20px 40px -15px rgba(2, 132, 199, 0.15);
}

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

html {
    scroll-behavior: smooth;
    font-family: 'Outfit', sans-serif;
    color: var(--color-text);
    background-color: var(--color-bg);
}

body {
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navbar / Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}

.header.scrolled {
    background-color: #ffffff;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    letter-spacing: -0.5px;
}

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--color-text-muted);
    font-weight: 500;
    font-size: 1rem;
    transition: var(--transition);
    position: relative;
    padding: 8px 0;
}

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

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

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

/* Botones */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 50px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    gap: 8px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(2, 132, 199, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(2, 132, 199, 0.35);
}

.btn-secondary {
    background-color: var(--color-primary-light);
    color: var(--color-primary-dark);
}

.btn-secondary:hover {
    background-color: var(--color-primary);
    color: #ffffff;
    transform: translateY(-2px);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-text);
    cursor: pointer;
}

/* Hero Section */
.hero {
    position: relative;
    padding: 180px 0 100px;
    background: radial-gradient(circle at 80% 20%, var(--color-primary-light) 0%, transparent 50%), var(--color-bg-light);
    overflow: hidden;
}

.hero-glow {
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.15) 0%, transparent 70%);
    top: 10%;
    right: 5%;
    z-index: 1;
    pointer-events: none;
}

.hero .container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-text {
    max-width: 650px;
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    background-color: var(--color-primary-light);
    color: var(--color-primary-dark);
    font-weight: 600;
    font-size: 0.85rem;
    border-radius: 50px;
    margin-bottom: 24px;
    border: 1px solid rgba(2, 132, 199, 0.15);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 24px;
    letter-spacing: -1.5px;
}

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

.hero-desc {
    font-size: 1.15rem;
    color: var(--color-text-muted);
    margin-bottom: 40px;
}

.hero-ctas {
    display: flex;
    gap: 16px;
}

.hero-card {
    background: rgba(255, 255, 255, 0.85);
    border: 1px solid var(--color-border);
    backdrop-filter: blur(16px);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-lg);
}

.service-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.service-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 500;
}

.service-list li i {
    color: var(--color-secondary);
    font-size: 1.1rem;
}

/* Stats Section */
.stats {
    padding: 60px 0;
    background-color: var(--color-bg-light);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    text-align: center;
}

.stat-item h3 {
    font-size: 3rem;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 8px;
    letter-spacing: -1px;
}

.stat-item p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    font-weight: 500;
}

/* Sections */
.section {
    padding: 100px 0;
}

.section-bg {
    background-color: var(--color-bg-light);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-subtitle {
    display: inline-block;
    color: var(--color-primary-dark);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 1.5px;
    margin-bottom: 12px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -1px;
}

/* Grid de Productos */
.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.product-card {
    background-color: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    opacity: 0;
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

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

.product-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 24px;
    transition: var(--transition);
}

.product-card:hover .product-icon {
    background-color: var(--color-primary);
    color: #ffffff;
}

.product-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.product-desc {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    margin-bottom: 24px;
}

/* Proceso de Instalacion */
.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    margin-top: 40px;
}

.process-step {
    text-align: center;
    position: relative;
}

.step-num {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--color-primary-light);
    color: var(--color-primary-dark);
    font-size: 1.25rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    border: 2px solid var(--color-bg-light);
    box-shadow: var(--shadow-sm);
    z-index: 2;
    position: relative;
}

.process-step h4 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.process-step p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* Asistente de Diagnostico */
.assistant-card {
    background-color: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.assistant-info {
    padding: 60px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: #ffffff;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.assistant-info h3 {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 16px;
    line-height: 1.2;
}

.assistant-info p {
    opacity: 0.9;
    margin-bottom: 32px;
}

.assistant-body {
    padding: 60px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.question-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 24px;
}

.diagnostic-options {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 32px;
}

.diagnostic-btn {
    display: flex;
    align-items: center;
    gap: 16px;
    width: 100%;
    padding: 18px 24px;
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-family: inherit;
    font-weight: 600;
    color: var(--color-text);
    text-align: left;
    transition: var(--transition);
}

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

.diagnostic-btn.active {
    background-color: var(--color-primary-light);
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px var(--color-primary);
}

.diagnostic-btn i {
    font-size: 1.3rem;
    color: var(--color-primary-dark);
}

.result-box {
    display: none;
    animation: fadeIn 0.4s ease forwards;
}

.result-card {
    background-color: var(--color-primary-light);
    border: 1px solid rgba(2, 132, 199, 0.2);
    border-radius: var(--radius-md);
    padding: 24px;
    margin-bottom: 24px;
}

.result-card h4 {
    color: var(--color-primary-dark);
    margin-bottom: 8px;
    font-size: 1.15rem;
}

.result-card p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

/* Contacto y Formulario */
.contact-section {
    background-color: var(--color-bg-light);
}

.contact-grid {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 48px;
    align-items: start;
}

.contact-info-card {
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 40px;
}

.contact-detail {
    display: flex;
    gap: 16px;
    margin-bottom: 32px;
}

.contact-detail-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.contact-detail h5 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.contact-detail p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

.contact-form-container {
    background-color: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 48px;
    box-shadow: var(--shadow-md);
}

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

.form-label {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 8px;
    color: var(--color-text-muted);
}

.form-control {
    width: 100%;
    padding: 14px 20px;
    font-family: inherit;
    font-size: 0.95rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    background-color: var(--color-bg);
    color: var(--color-text);
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    background-color: #ffffff;
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

.form-message {
    display: none;
    padding: 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 24px;
    font-weight: 500;
}

.form-message.success {
    background-color: #dcfce7;
    color: #166534;
    border: 1px solid #bbf7d0;
}

.form-message.error {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

/* Footer */
.footer {
    background-color: var(--color-text);
    color: #ffffff;
    padding: 60px 0 30px;
}

.footer-bottom {
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    margin-top: 30px;
    font-size: 0.9rem;
    color: var(--color-text-light);
}

/* Animaciones */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

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

/* Media Queries */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 32px;
    }
    .hero-text {
        max-width: 100%;
    }
    .hero-ctas {
        justify-content: center;
    }
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .process-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .assistant-card {
        grid-template-columns: 1fr;
    }
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background-color: #ffffff;
        flex-direction: column;
        padding: 40px;
        gap: 24px;
        transition: var(--transition);
        border-top: 1px solid var(--color-border);
        align-items: flex-start;
    }
    .nav-menu.active {
        left: 0;
    }
    .nav-link {
        font-size: 1.15rem;
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .products-grid {
        grid-template-columns: 1fr;
    }
    .process-grid {
        grid-template-columns: 1fr;
    }
    .hero-title {
        font-size: 2.5rem;
    }
    .assistant-info, .assistant-body, .contact-form-container {
        padding: 32px 24px;
    }
}