/* ===== VARIABLES Y CONFIGURACIÓN GLOBAL ===== */

:root {
    /* Colores corporativos */
    --primary-color: #1a365d;
    --primary-dark: #0f2a4d;
    --primary-light: #2d5a8b;
    --secondary-color: #4a5568;
    --accent-color: #3182ce;
    --text-primary: #2d3748;
    --text-secondary: #4a5568;
    --text-light: #718096;
    --background-light: #f7fafc;
    --background-white: #ffffff;
    --border-color: #e2e8f0;
    --border-light: #edf2f7;
    --success-color: #38a169;
    --warning-color: #d69e2e;
    --error-color: #e53e3e;
    
    /* Tipografía */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;
    
    /* Espaciado */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Sombras */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);
    
    /* Transiciones */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Bordes */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
}

/* ===== RESET Y ESTILOS BASE ===== */

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background-white);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.3;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

a {
    text-decoration: none;
    color: var(--accent-color);
    transition: var(--transition-normal);
}

a:hover {
    color: var(--primary-color);
}

img {
    max-width: 100%;
    height: auto;
}

ul, ol {
    list-style: none;
}

button {
    border: none;
    background: none;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition-normal);
}

input, select, textarea {
    font-family: inherit;
    font-size: inherit;
    border: none;
    outline: none;
}

/* ===== UTILIDADES ===== */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
    font-weight: 500;
    border-radius: var(--border-radius-md);
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-normal);
    border: 2px solid transparent;
    min-height: 48px;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    color: var(--background-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: var(--background-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.form-control {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-md);
    font-size: 1rem;
    transition: var(--transition-normal);
    background-color: var(--background-white);
}

.form-control:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(49, 130, 206, 0.1);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--text-primary);
}

/* ===== NAVEGACIÓN ===== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-light);
    z-index: 1000;
    transition: var(--transition-normal);
}

.navbar.scrolled {
    background-color: var(--background-white);
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav-logo h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0;
}

.nav-logo .tagline {
    font-size: 0.875rem;
    color: var(--text-light);
    font-weight: 400;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-xl);
}

.nav-link {
    font-weight: 500;
    color: var(--text-primary);
    transition: var(--transition-normal);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition-normal);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    margin: 3px 0;
    transition: var(--transition-normal);
}

/* ===== HERO SECTION ===== */

.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><pattern id="grid" width="50" height="50" patternUnits="userSpaceOnUse"><path d="M 50 0 L 0 0 0 50" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(26, 54, 93, 0.7);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--background-white);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 600;
    color: var(--background-white);
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-2xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--background-white);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    flex-wrap: wrap;
}

.hero-cta .btn {
    min-width: 200px;
}

.hero-cta .btn-outline {
    background-color: transparent;
    color: var(--background-white);
    border-color: var(--background-white);
}

.hero-cta .btn-outline:hover {
    background-color: var(--background-white);
    color: var(--primary-color);
}

/* ===== SERVICES SECTION ===== */

.services {
    padding: var(--spacing-3xl) 0;
    background-color: var(--background-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.service-card {
    background-color: var(--background-white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    border: 1px solid var(--border-light);
    text-align: center;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--accent-color);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--background-white);
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

.service-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===== QUOTATION SECTION ===== */

.quotation {
    padding: var(--spacing-3xl) 0;
    background-color: var(--background-white);
}

.quotation-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.quotation-form {
    background-color: var(--background-light);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-light);
}

.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.checkbox-item {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-weight: 500;
    user-select: none;
}

.checkbox-item input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    margin-right: var(--spacing-md);
    position: relative;
    transition: var(--transition-normal);
}

.checkbox-item input[type="checkbox"]:checked + .checkmark {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.checkbox-item input[type="checkbox"]:checked + .checkmark::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--background-white);
    font-weight: bold;
    font-size: 12px;
}

.quotation-result {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    color: var(--background-white);
    text-align: center;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.result-content h3 {
    color: var(--background-white);
    margin-bottom: var(--spacing-lg);
    font-size: 1.5rem;
}

.quote-amount {
    font-size: 3rem;
    font-weight: 700;
    color: var(--background-white);
    margin-bottom: var(--spacing-md);
}

.quote-message {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
}

/* ===== SIMULATOR SECTION ===== */

.simulator {
    padding: var(--spacing-3xl) 0;
    background-color: var(--background-light);
}

.simulator-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.simulator-form {
    background-color: var(--background-white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
}

.simulator-result {
    background-color: var(--background-white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--border-light);
}

.result-item:last-child {
    border-bottom: none;
}

.result-item span:first-child {
    font-weight: 500;
    color: var(--text-secondary);
}

.result-item span:last-child {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 1.125rem;
}

.disclaimer {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background-color: var(--background-light);
    border-radius: var(--border-radius-md);
    border-left: 4px solid var(--warning-color);
}

.disclaimer p {
    margin: 0;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.disclaimer i {
    color: var(--warning-color);
    margin-right: var(--spacing-sm);
}

/* ===== DIAGNOSTIC SECTION ===== */

.diagnostic {
    padding: var(--spacing-3xl) 0;
    background-color: var(--background-white);
}

.diagnostic-container {
    max-width: 800px;
    margin: 0 auto;
}

.diagnostic-form {
    background-color: var(--background-light);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-light);
}

.question-item {
    display: none;
    text-align: center;
}

.question-item.active {
    display: block;
}

.question-item h4 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xl);
    color: var(--primary-color);
}

.radio-group {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.radio-item {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-weight: 500;
    user-select: none;
}

.radio-item input[type="radio"] {
    display: none;
}

.radio-mark {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    margin-right: var(--spacing-md);
    position: relative;
    transition: var(--transition-normal);
}

.radio-item input[type="radio"]:checked + .radio-mark {
    border-color: var(--primary-color);
}

.radio-item input[type="radio"]:checked + .radio-mark::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 10px;
    height: 10px;
    background-color: var(--primary-color);
    border-radius: 50%;
}

.diagnostic-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.diagnostic-result {
    display: none;
    background-color: var(--background-white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
    margin-top: var(--spacing-xl);
}

.diagnostic-result.show {
    display: block;
}

#recommendations-list {
    margin-bottom: var(--spacing-xl);
}

.recommendation-item {
    padding: var(--spacing-md);
    background-color: var(--background-light);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-md);
    border-left: 4px solid var(--success-color);
}

.recommendation-item h5 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    font-size: 1.125rem;
}

.recommendation-item p {
    margin: 0;
    color: var(--text-secondary);
}

/* ===== LEAD CAPTURE SECTION ===== */

.lead-capture {
    padding: var(--spacing-3xl) 0;
    background-color: var(--background-light);
}

.lead-form-container {
    max-width: 800px;
    margin: 0 auto;
}

.lead-form {
    background-color: var(--background-white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

/* ===== ABOUT SECTION ===== */

.about {
    padding: var(--spacing-3xl) 0;
    background-color: var(--background-white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.about-text {
    background-color: var(--background-light);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-light);
}

.about-section {
    margin-bottom: var(--spacing-xl);
}

.about-section:last-child {
    margin-bottom: 0;
}

.about-section h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

.about-section p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.about-values h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xl);
    color: var(--primary-color);
    text-align: center;
}

.values-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.value-item {
    text-align: center;
    padding: var(--spacing-lg);
    background-color: var(--background-light);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-light);
    transition: var(--transition-normal);
}

.value-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.value-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--background-white);
}

.value-item h4 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

.value-item p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
}

/* ===== CONTACT SECTION ===== */

.contact {
    padding: var(--spacing-3xl) 0;
    background-color: var(--background-light);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.contact-info {
    background-color: var(--background-white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
}

.contact-info h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xl);
    color: var(--primary-color);
}

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.contact-item:last-child {
    margin-bottom: 0;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--background-white);
    margin-right: var(--spacing-lg);
}

.contact-text h4 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
    color: var(--primary-color);
}

.contact-text p {
    margin: 0;
    color: var(--text-secondary);
}

.contact-form {
    background-color: var(--background-white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
}

/* ===== FOOTER ===== */

.footer {
    background-color: var(--primary-color);
    color: var(--background-white);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h3,
.footer-section h4 {
    color: var(--background-white);
    margin-bottom: var(--spacing-lg);
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-md);
}

.footer-section .tagline {
    color: rgba(255, 255, 255, 0.6);
    font-style: italic;
}

.footer-section ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition-normal);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
}

.footer-links {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.875rem;
    transition: var(--transition-normal);
}

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

.footer-links span {
    color: rgba(255, 255, 255, 0.4);
}

/* ===== WHATSAPP FLOAT BUTTON ===== */

.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: #25d366;
    color: var(--background-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-normal);
    z-index: 999;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-xl);
    color: var(--background-white);
}

/* ===== BACK TO TOP BUTTON ===== */

.back-to-top {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--background-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
    color: var(--background-white);
}

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

@media (max-width: 1024px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .quotation-container,
    .simulator-container,
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-stats {
        gap: var(--spacing-xl);
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .radio-group {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .values-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-lg: 1rem;
        --spacing-xl: 1.5rem;
        --spacing-2xl: 2rem;
        --spacing-3xl: 2.5rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .quote-amount {
        font-size: 2rem;
    }
    
    .whatsapp-float {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
        bottom: 20px;
        right: 20px;
    }
    
    .back-to-top {
        width: 40px;
        height: 40px;
        font-size: 1rem;
        bottom: 80px;
        right: 20px;
    }
}

/* ===== ANIMATIONS ===== */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.pulse {
    animation: pulse 2s infinite;
}

/* ===== LOADING STATES ===== */

.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: inherit;
}

.loading::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    z-index: 1;
}

@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* ===== SUCCESS/ERROR STATES ===== */

.success-message {
    background-color: #f0fff4;
    border: 1px solid var(--success-color);
    color: var(--success-color);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-lg);
}

.error-message {
    background-color: #fff5f5;
    border: 1px solid var(--error-color);
    color: var(--error-color);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-lg);
}

/* ===== PRINT STYLES ===== */

@media print {
    .navbar,
    .whatsapp-float,
    .back-to-top,
    .footer-links a[href*="admin"] {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    .container {
        max-width: none;
        padding: 0;
    }
    
    .section-header {
        page-break-inside: avoid;
    }
    
    .service-card,
    .about-text,
    .contact-info {
        break-inside: avoid;
    }
}