/* 
=================================
VARIABLES Y RESET
=================================
*/
:root {
    /* Colores principales */
    --color-primary: #2C3E50;
    --color-secondary: #E67E22;
    --color-bg: #F0F0F0;
    --color-text: #34495E;
    
    /* Colores adicionales */
    --color-white: #FFFFFF;
    --color-light-grey: #ECEFF1;
    --color-grey: #B0BEC5;
    --color-dark-grey: #546E7A;
    --color-black: #263238;
    
    /* Espaciados */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Fuentes */
    --font-family-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-family-headings: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    
    /* Tamaños de fuente */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-md: 1rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-xxl: 2rem;
    --font-size-xxxl: 3rem;
    
    /* Border-radius */
    --border-radius-sm: 0.25rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 1rem;
    
    /* Transiciones */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Sombras */
    --shadow-small: 0 2px 5px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 5px 15px rgba(0, 0, 0, 0.1);
    --shadow-large: 0 10px 25px rgba(0, 0, 0, 0.1);
}

/* Reset básico */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-family-main);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.6;
    overflow-x: hidden;
}

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

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

ul, ol {
    list-style-position: inside;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-headings);
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

h1 {
    font-size: calc(var(--font-size-xxxl) * 1.3);
    line-height: 1.1;
    margin-bottom: calc(var(--spacing-lg) * 1.2);
}

h2 {
    font-size: calc(var(--font-size-xxl) * 1.2);
    margin-bottom: calc(var(--spacing-md) * 1.5);
}

h3 {
    font-size: var(--font-size-xl);
}

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

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

section {
    padding: calc(var(--spacing-xl) * 2) 0;
}

main {
    min-height: 100vh;
}

/* 
=================================
HEADER Y NAVEGACIÓN
=================================
*/
.site-header {
    background-color: var(--color-white);
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 100;
    box-shadow: var(--shadow-small);
    padding: var(--spacing-md) 0;
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo img {
    max-height: 45px;
    width: auto;
    transition: transform var(--transition-medium);
}

.logo a:hover img {
    transform: scale(1.05);
}

.main-nav {
    display: flex;
    align-items: center;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-links li a {
    font-weight: 500;
    position: relative;
}

.nav-links li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-secondary);
    transition: width var(--transition-medium);
}

.nav-links li a:hover::after {
    width: 100%;
}

.btn-contact {
    background-color: var(--color-secondary);
    color: var(--color-white) !important;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    transition: background-color var(--transition-fast);
}

.btn-contact:hover {
    background-color: #d35400;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 30px;
    height: 25px;
    position: relative;
    z-index: 200;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--color-primary);
    margin: 5px 0;
    transition: all var(--transition-medium);
}

/* 
=================================
COOKIE CONSENT
=================================
*/
.cookie-consent {
    position: fixed;
    bottom: -100%;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    box-shadow: var(--shadow-medium);
    padding: var(--spacing-md);
    z-index: 99;
    transition: bottom var(--transition-slow);
}

.cookie-consent.active {
    bottom: 0;
}

.cookie-consent .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.cookie-consent p {
    margin-bottom: 0;
    margin-right: var(--spacing-md);
}

/* 
=================================
BOTONES
=================================
*/
.btn {
    display: inline-block;
    padding: calc(var(--spacing-sm) * 1.5) calc(var(--spacing-lg) * 1.5);
    border-radius: var(--border-radius-sm);
    font-weight: 500;
    font-size: var(--font-size-lg);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    min-width: 180px;
}

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

.btn-primary:hover {
    background-color: #d35400;
    color: var(--color-white);
}

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

.btn-secondary:hover {
    background-color: #1a2530;
    color: var(--color-white);
}

/* 
=================================
SECCIÓN INTRO
=================================
*/
.section-intro {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding-top: calc(var(--spacing-xl) * 2 + 80px);
    padding-bottom: calc(var(--spacing-xl) * 2);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.intro-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('img/nBZvS.jpg');
    background-size: cover;
    background-position: center;
    opacity: 0.2;
    z-index: 0;
}

.section-intro .container {
    position: relative;
    z-index: 1;
}

.section-intro h1, .section-intro .lead {
    color: var(--color-white);
    margin-bottom: var(--spacing-lg);
}

.section-intro .lead {
    font-size: calc(var(--font-size-xl) * 1.2);
    max-width: 80%;
    margin: 0 auto var(--spacing-xl);
    line-height: 1.5;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: calc(var(--spacing-lg) * 1.5);
}

/* 
=================================
SECCIÓN SERVICIOS
=================================
*/
.section-services {
    background-color: var(--color-white);
    text-align: center;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: calc(var(--spacing-lg) * 1.5);
}

.service-card {
    padding: var(--spacing-lg);
    background-color: var(--color-light-grey);
    border-radius: var(--border-radius-md);
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-secondary);
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Iconos personalizados para servicios */
.icon-audit::before {
    content: "📊";
}

.icon-accounting::before {
    content: "📝";
}

.icon-tax::before {
    content: "📋";
}

/* 
=================================
SECCIÓN POR QUÉ ELEGIRNOS
=================================
*/
.section-why-us {
    background-color: var(--color-light-grey);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.why-us-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('img/sbfr5.jpg');
    background-size: cover;
    background-position: center;
    opacity: 0.1;
    z-index: 0;
}

.section-why-us .container {
    position: relative;
    z-index: 1;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-top: calc(var(--spacing-lg) * 1.5);
}

.feature {
    padding: var(--spacing-md);
    background-color: var(--color-white);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-small);
    transition: transform var(--transition-medium);
}

.feature:hover {
    transform: translateY(-5px);
}

/* 
=================================
SECCIÓN TESTIMONIOS
=================================
*/
.section-testimonials {
    background-color: var(--color-white);
    text-align: center;
}

.testimonials-slider {
    margin-top: calc(var(--spacing-lg) * 1.5);
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-xl);
}

.testimonial {
    flex: 1 1 300px;
    max-width: 500px;
    padding: var(--spacing-lg);
    background-color: var(--color-light-grey);
    border-radius: var(--border-radius-md);
    text-align: left;
    box-shadow: var(--shadow-small);
}

.testimonial-content {
    margin-bottom: var(--spacing-md);
}

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

.testimonial-image {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    margin-right: var(--spacing-md);
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-info strong {
    color: var(--color-primary);
}

.author-info span {
    font-size: var(--font-size-sm);
    color: var(--color-dark-grey);
}

/* 
=================================
SECCIÓN CONTACTO
=================================
*/
.section-contact {
    background-color: var(--color-white);
    text-align: center;
}

.contact-container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.contact-info {
    width: 100%;
    max-width: 800px;
}

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

.contact-item i {
    margin-right: var(--spacing-sm);
    font-size: var(--font-size-lg);
    color: var(--color-secondary);
}

.contact-map {
    width: 100%;
    margin-top: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    overflow: hidden;
}

/* Iconos personalizados para contacto */
.icon-location::before {
    content: "📍";
}

.icon-phone::before {
    content: "📞";
}

.icon-email::before {
    content: "✉️";
}

/* 
=================================
SECCIÓN FORMULARIO
=================================
*/
.section-form {
    background-color: var(--color-light-grey);
    text-align: center;
}

form {
    max-width: 700px;
    margin: 0 auto;
    background-color: var(--color-white);
    padding: calc(var(--spacing-lg) * 1.5);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-medium);
}

.form-group {
    margin-bottom: var(--spacing-md);
    text-align: left;
}

label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
}

input, select, textarea {
    width: 100%;
    padding: calc(var(--spacing-sm) * 1.5);
    border: 1px solid var(--color-grey);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-family-main);
    font-size: var(--font-size-lg);
    transition: border-color var(--transition-fast);
    margin-bottom: var(--spacing-md);
}

select option {
    background-color: var(--color-white);
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--color-secondary);
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
}

.checkbox-group input {
    width: auto;
    margin-right: var(--spacing-sm);
    margin-top: 5px;
}

.form-submit {
    margin-top: var(--spacing-lg);
    text-align: center;
}

/* 
=================================
SECCIÓN POLÍTICAS
=================================
*/
.section-policies {
    background-color: var(--color-white);
    text-align: center;
}

.policies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-top: calc(var(--spacing-lg) * 1.5);
}

.policy-item {
    padding: var(--spacing-md);
    background-color: var(--color-light-grey);
    border-radius: var(--border-radius-md);
    transition: transform var(--transition-medium);
}

.policy-item:hover {
    transform: translateY(-5px);
}

.read-more {
    display: inline-block;
    margin-top: var(--spacing-sm);
    color: var(--color-secondary);
    font-weight: 500;
    position: relative;
}

.read-more::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-secondary);
    transition: width var(--transition-medium);
}

.read-more:hover::after {
    width: 100%;
}

/* 
=================================
SECCIÓN LEGAL
=================================
*/
.section-legal {
    background-color: var(--color-light-grey);
    text-align: center;
}

.legal-info {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    display: inline-block;
    text-align: left;
}

/* 
=================================
SECCIÓN GRACIAS
=================================
*/
.section-thanks {
    background-color: var(--color-white);
    min-height: calc(100vh - 200px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 100px;
}

.thanks-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.thanks-icon {
    margin: var(--spacing-lg) 0;
}

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

/* 
=================================
FOOTER
=================================
*/
.site-footer {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-xl) 0;
}

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

.footer-logo img {
    max-height: 38px;
    width: auto;
    margin-bottom: var(--spacing-md);
}

.footer-contact {
    margin-top: var(--spacing-md);
}

.footer-links h3, .footer-legal h3 {
    color: var(--color-white);
}

.footer-links ul, .footer-legal ul {
    list-style: none;
}

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

.footer-links ul li a, .footer-legal ul li a {
    color: var(--color-light-grey);
    transition: color var(--transition-fast);
}

.footer-links ul li a:hover, .footer-legal ul li a:hover {
    color: var(--color-secondary);
}

.copyright {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.copyright p {
    margin-bottom: 0;
}

/* 
=================================
MEDIA QUERIES
=================================
*/

/* Tablets */
@media (max-width: 992px) {
    html {
        font-size: 15px;
    }
    
    h1 {
        font-size: var(--font-size-xxl);
    }
    
    h2 {
        font-size: var(--font-size-xl);
    }
    
    .menu-toggle {
        display: block;
    }
    
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background-color: var(--color-white);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: right var(--transition-medium);
        box-shadow: var(--shadow-large);
        z-index: 99;
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .services-grid, .features-grid, .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-slider {
        flex-direction: column;
        align-items: center;
    }
    
    .cookie-consent .container {
        flex-direction: column;
    }
    
    .cookie-consent p {
        margin-bottom: var(--spacing-md);
    }
}

/* Móviles */
@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    section {
        padding: var(--spacing-lg) 0;
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .section-intro {
        padding-top: calc(var(--spacing-lg) + 80px);
    }
    
    .portfolio-item {
        height: 200px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .policies-grid {
        grid-template-columns: 1fr;
    }
    
    .action-buttons {
        flex-direction: column;
    }
}

/* Móviles pequeños */
@media (max-width: 480px) {
    html {
        font-size: 13px;
    }
    
    .nav-links {
        width: 100%;
    }
    
    .portfolio-item {
        height: 180px;
    }
    
    form {
        padding: var(--spacing-md);
    }
}