/* ============================================
   ESTUDIO CONTABLE BRANDEN & ASOCIADOS
   Premium Landing Page Stylesheet
   ============================================ */

/* ============================================
   CSS RESET & BASE STYLES
   ============================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
/* Local fonts — usar archivos en assets/fonts/ */
@font-face {
    font-family: 'Raleway';
    src: url('/assets/fonts/Raleway-VariableFont_wght.ttf') format('truetype');
    font-weight: 300 800;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Raleway';
    src: url('/assets/fonts/Raleway-Italic-VariableFont_wght.ttf') format('truetype');
    font-weight: 300 800;
    font-style: italic;
    font-display: swap;
}

@font-face {
    font-family: 'Bree Serif';
    src: url('/assets/fonts/BreeSerif-Regular.ttf') format('truetype');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

:root {
    /* Color Palette */
    --color-primary: #F4F3EE;
    --color-secondary-dark: #020122;
    --color-secondary-grey: #6D8EA0;
    --color-secondary-blue: #1f8dc9;
    --color-secondary-dark-blue: #01324d;
    --color-accent-red: #9B2915;
    --color-accent-brown: #ce412f;
    --color-black: #000000;
    --color-white: #FFFFFF;
    --color-gray-light: #F8F8F8;
    --color-gray-medium: #E5E5E5;
    --color-gray-dark: #4A4A4A;

    /* Typography */
    --font-secundary: 'Raleway', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-primary: 'Bree Serif', serif;
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.15);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

body {
    font-family: var(--font-secundary);
    font-weight: var(--font-weight-regular);
    line-height: 1.6;
    color: var(--color-secondary-dark);
    background-color: var(--color-white);
    overflow-x: hidden;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: var(--font-weight-regular);
    line-height: 1.5;
    margin-bottom: var(--spacing-md);
    color: var(--color-secondary-dark);
    font-family: var(--font-primary);
    
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: var(--font-weight-extrabold);
    letter-spacing: 2px;
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.75rem);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--color-gray-dark);
}

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

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

/* ============================================
   UTILITY CLASSES
   ============================================ */

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

.highlight {
    color: var(--color-accent-red);
    position: relative;
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all var(--transition-base);
}

/* Header scrolled state (toggling class is more performant than inline style changes) */
.header.is-scrolled {
    box-shadow: var(--shadow-md);
    transition: box-shadow var(--transition-base);
}

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

.logo {
    display: flex;
    align-items: center;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: var(--font-weight-extrabold);
    color: var(--color-secondary-dark);
    letter-spacing: -0.5px;
}

.logo-ampersand {
    color: var(--color-accent-red);
    margin: 0 0.25rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-link {
    font-weight: var(--font-weight-medium);
    color: var(--color-secondary-dark);
    transition: color var(--transition-fast);
    position: relative;
    padding: 2px 8px;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent-red);
    transition: width var(--transition-base);
}

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

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

.btn-cta-nav {
    background-color: var(--color-accent-red);
    color: var(--color-white);
    padding: 0.625rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: var(--font-weight-semibold);
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.btn-cta-nav:hover {
    background-color: #7A1F0F;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.hamburger-line {
    width: 25px;
    height: 3px;
    background-color: var(--color-secondary-dark);
    border-radius: 2px;
    transition: all var(--transition-base);
}

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

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background-color: var(--color-primary);
    padding-top: 80px;
    overflow: hidden;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-3xl) var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content {
    animation: fadeInUp 0.8s ease-out;
}

.hero-title {
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--color-gray-dark);
    margin-bottom: var(--spacing-xl);
    max-width: 540px;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.hero-image {
    position: relative;
    animation: fadeInRight 0.8s ease-out 0.2s both;
}

.hero-image-wrapper {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transform: perspective(1000px) rotateY(-5deg);
    transition: transform var(--transition-slow);
}

.hero-image-wrapper:hover {
    transform: perspective(1000px) rotateY(0deg);
}

.hero-image-wrapper img {
    width: 100%;
    height: auto;
    display: block;
}

/* Hero Decorative Shapes */
.hero-shape {
    position: absolute;
    border-radius: 50%;
    z-index: 1;
    opacity: 0.6;
}

.hero-shape-1 {
    width: 500px;
    height: 500px;
    background: linear-gradient(135deg, var(--color-secondary-blue) 0%, rgba(109, 142, 160, 0.3) 100%);
    top: -150px;
    right: -100px;
    animation: float 20s ease-in-out infinite;
}

.hero-shape-2 {
    width: 350px;
    height: 350px;
    background: linear-gradient(135deg, rgba(109, 142, 160, 0.4) 0%, rgba(109, 142, 160, 0.1) 100%);
    bottom: -100px;
    right: 30%;
    animation: float 15s ease-in-out infinite reverse;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn-primary,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    border-radius: var(--radius-sm);
    font-weight: var(--font-weight-semibold);
    font-size: 1rem;
    transition: all var(--transition-fast);
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--color-accent-red);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background-color: #7A1F0F;
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-secondary-dark);
    border-color: var(--color-secondary-dark);
}

.btn-secondary:hover {
    background-color: var(--color-secondary-dark);
    color: var(--color-white);
    transform: translateY(-3px);
}

.btn-large {
    padding: 1.125rem 2.5rem;
    font-size: 1.125rem;
}

.btn-icon {
    width: 20px;
    height: 20px;
}

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

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

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-3xl);
}

.section-title {
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-gray-dark);
}

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

.service-card {
    background-color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border: 2px solid var(--color-gray-medium);
    transition: all var(--transition-base);
    cursor: pointer;
}

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

.service-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--color-accent-red), var(--color-accent-brown));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    color: var(--color-white);
    transition: transform var(--transition-base);
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
}

.service-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-secondary-dark);
}

.service-description {
    color: var(--color-gray-dark);
    line-height: 1.7;
}

/* ============================================
   BENEFITS SECTION
   ============================================ */

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

.benefits-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.benefits-image {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.benefits-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.benefits-image:hover img {
    transform: scale(1.05);
}

.benefits-content {
    padding: var(--spacing-lg);
}

.benefits-intro {
    font-size: 1.125rem;
    color: var(--color-gray-dark);
    margin-bottom: var(--spacing-xl);
}

.benefits-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.benefit-item {
    display: flex;
    gap: var(--spacing-md);
    opacity: 0;
    animation: fadeInLeft 0.6s ease-out forwards;
}

.benefit-item:nth-child(1) {
    animation-delay: 0.1s;
}

.benefit-item:nth-child(2) {
    animation-delay: 0.2s;
}

.benefit-item:nth-child(3) {
    animation-delay: 0.3s;
}

.benefit-item:nth-child(4) {
    animation-delay: 0.4s;
}

.benefit-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background-color: var(--color-accent-red);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
}

.benefit-text h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--color-secondary-dark);
}

.benefit-text p {
    color: var(--color-gray-dark);
    margin: 0;
}

/* ============================================
   CTA SECTION
   ============================================ */

.cta-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--color-secondary-dark) 0%, var(--color-secondary-blue) 100%);
    position: relative;
    overflow: hidden;
    position: relative;
}


.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 1;
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 2;
}

.cta-title {
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
}

.cta-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

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

.cta-section .btn-secondary {
    border-color: var(--color-white);
    color: var(--color-white);
}

.cta-section .btn-secondary:hover {
    background-color: var(--color-white);
    color: var(--color-secondary-dark);
}

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

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

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

.footer-logo {
    margin-bottom: var(--spacing-md);
}

.footer-logo .logo-text {
    color: var(--color-white);
    font-size: 1.5rem;
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
}

.footer-title {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-white);
}

.footer-links,
.footer-contact {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-white);
    padding-left: 5px;
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    color: rgba(255, 255, 255, 0.7);
}

.footer-contact svg {
    flex-shrink: 0;
    margin-top: 2px;
}

.footer-hours {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-sm);
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.footer-social a {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    background-color: var(--color-accent-red);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}
.footer-bottom p {
    
    color: #989898;
}

.footer-credits{
    color: var(--color-secondary-grey);
}
.footer-credits:hover {
    color: var(--color-gray-medium);
}


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

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--color-accent-red);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 999;
}

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

.back-to-top:hover {
    background-color: #7A1F0F;
    transform: translateY(-5px);
}

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

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0) rotate(0deg);
    }

    50% {
        transform: translateY(-30px) rotate(5deg);
    }
}

/* Scroll animations */
[data-aos] {
    opacity: 0;
    transition: all 0.6s ease-out;
}

[data-aos="fade-up"] {
    transform: translateY(30px);
}

[data-aos="fade-left"] {
    transform: translateX(-30px);
}

[data-aos].aos-animate {
    opacity: 1;
    transform: translateY(0) translateX(0);
}

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

@media (max-width: 1024px) {
    .hero-container {
        gap: var(--spacing-xl);
    }

    .benefits-wrapper {
        gap: var(--spacing-xl);
    }
}

@media (max-width: 768px) {

    /* Navigation */
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background-color: var(--color-white);
        width: 100%;
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-lg);
        transition: left var(--transition-base);
        align-items: flex-start;
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

    .hamburger.active .hamburger-line:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }

    .hamburger.active .hamburger-line:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .hamburger-line:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }

    /* Hero */
    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        padding: var(--spacing-xl) var(--spacing-lg);
    }

    .hero-image {
        order: -1;
    }

    .hero-image-wrapper {
        transform: none;
    }

    .hero-shape-1,
    .hero-shape-2 {
        width: 300px;
        height: 300px;
    }

    /* Services */
    .services-grid {
        grid-template-columns: 1fr;
    }

    /* Benefits */
    .benefits-wrapper {
        grid-template-columns: 1fr;
    }

    .benefits-image {
        max-height: 400px;
    }

    /* CTA */
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        max-width: 350px;
        justify-content: center;
    }

    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
        --spacing-3xl: 4rem;
    }

    .hero {
        min-height: auto;
    }

    .hero-cta {
        flex-direction: column;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        justify-content: center;
    }

    .service-card {
        padding: var(--spacing-lg);
    }

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

/* Focus styles for keyboard navigation */
a:focus,
button:focus {
    outline: 2px solid var(--color-secondary-grey);
    border-radius: 1.5px;    
    outline-offset: 1px;
}

/* Reduced motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .service-card {
        border-width: 3px;
    }

    .btn-primary,
    .btn-secondary {
        border-width: 3px;
    }
}

/* Print styles */
@media print {

    .header,
    .back-to-top,
    .hero-shape {
        display: none;
    }

    .hero {
        min-height: auto;
        padding-top: 0;
    }
}