/* 
* Kequzysol.pro - Contabilidad para Startups
* Estilos principales
*/

/* ==================== 
   Variables y Reset 
   ==================== */
:root {
    /* Colores principales */
    --color-primary: #004E89;
    --color-secondary: #F2A516;
    --color-tertiary: #E63946;
    --color-bg: #F4F4F4;
    --color-white: #FFFFFF;
    --color-dark: #333333;
    --color-gray: #777777;
    --color-light-gray: #EEEEEE;
    
    /* Sombras */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);
    
    /* Border radius */
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 18px;
    --border-radius-xl: 24px;
    
    /* Transiciones */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Tipografía */
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Open Sans', sans-serif;
}

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

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

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

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

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

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

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: 80px 0;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 2.5rem;
    position: relative;
}

h2:after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background-color: var(--color-secondary);
    margin: 1rem auto 0;
    border-radius: 2px;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1.5rem;
}

/* ==================== 
   Botones 
   ==================== */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--border-radius-md);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: center;
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

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

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

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
}

.btn-outline:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
}

.btn-block {
    display: block;
    width: 100%;
}

.btn-primary:hover, .btn-secondary:hover, .btn-outline:hover {
    animation: pulse 1s;
}

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

/* ==================== 
   Header y Navegación 
   ==================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

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

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

.logo img {
    height: 40px;
}

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

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

.nav-menu li {
    margin-left: 1.5rem;
}

.nav-menu li a {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--color-dark);
    position: relative;
}

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

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

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

.hamburger, .hamburger:before, .hamburger:after {
    position: absolute;
    width: 30px;
    height: 3px;
    background-color: var(--color-dark);
    transition: all var(--transition-fast);
}

.hamburger {
    top: 50%;
    left: 0;
    transform: translateY(-50%);
}

.hamburger:before, .hamburger:after {
    content: '';
    left: 0;
}

.hamburger:before {
    top: -8px;
}

.hamburger:after {
    bottom: -8px;
}

.menu-toggle.active .hamburger {
    background-color: transparent;
}

.menu-toggle.active .hamburger:before {
    top: 0;
    transform: rotate(45deg);
}

.menu-toggle.active .hamburger:after {
    bottom: 0;
    transform: rotate(-45deg);
}

@media (max-width: 992px) {
    .menu-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        right: -100%;
        flex-direction: column;
        width: 80%;
        max-width: 300px;
        height: calc(100vh - 80px);
        background-color: var(--color-white);
        box-shadow: var(--shadow-lg);
        transition: right var(--transition-normal);
        padding: 2rem;
        overflow-y: auto;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-menu li {
        margin: 1rem 0;
        width: 100%;
    }
    
    .nav-menu li a {
        display: block;
        padding: 0.5rem 0;
    }
}

/* ==================== 
   Hero Section 
   ==================== */
.hero {
    padding-top: 160px;
    padding-bottom: 100px;
    background: linear-gradient(135deg, var(--color-primary) 0%, #003366 100%);
    color: var(--color-white);
    position: relative;
    overflow: hidden;
}

.hero .container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    flex: 1;
    min-width: 300px;
    padding-right: 2rem;
}

.hero-image {
    flex: 1;
    min-width: 300px;
    display: flex;
    justify-content: flex-end;
}

.hero-image img {
    max-width: 100%;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    transform: perspective(1000px) rotateY(-10deg);
    transition: transform var(--transition-normal);
}

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

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero h1 span {
    color: var(--color-secondary);
    display: block;
}

.hero-text {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-form {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    backdrop-filter: blur(10px);
    max-width: 450px;
}

.contact-form-mini .form-group {
    margin-bottom: 1rem;
}

.contact-form-mini input,
.contact-form-mini select {
    width: 100%;
    padding: 12px;
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(255, 255, 255, 0.2);
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    font-family: var(--font-body);
}

.contact-form-mini input::placeholder,
.contact-form-mini select {
    color: rgba(255, 255, 255, 0.7);
}

.contact-form-mini select option {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.hero-shape {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 150px;
    background: var(--color-white);
    clip-path: polygon(0 65%, 100% 0, 100% 100%, 0% 100%);
}

@media (max-width: 768px) {
    .hero {
        padding-top: 120px;
        padding-bottom: 80px;
        text-align: center;
    }
    
    .hero .container {
        flex-direction: column;
    }
    
    .hero-content {
        padding-right: 0;
        margin-bottom: 2rem;
    }
    
    .hero-form {
        margin: 0 auto;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
}

/* ==================== 
   Problema Section 
   ==================== */
.problema {
    background-color: var(--color-white);
    position: relative;
}

.problema-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.problema-card {
    background-color: var(--color-white);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    border-top: 4px solid var(--color-tertiary);
}

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

.icon-wrapper {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.red {
    background-color: rgba(230, 57, 70, 0.1);
    color: var(--color-tertiary);
}

.yellow {
    background-color: rgba(242, 165, 22, 0.1);
    color: var(--color-secondary);
}

.orange {
    background-color: rgba(242, 100, 25, 0.1);
    color: #F26419;
}

.problema-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

/* ==================== 
   Solución Section 
   ==================== */
.solucion {
    background-color: var(--color-bg);
    position: relative;
}

.solucion .container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
}

.solucion-content {
    flex: 1;
    min-width: 300px;
    padding-right: 2rem;
}

.solucion-image {
    flex: 1;
    min-width: 300px;
}

.solucion-image img {
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

.solucion-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.solucion-item {
    background-color: var(--color-white);
    border-radius: var(--border-radius-md);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.solucion-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.solucion-icon {
    font-size: 2rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.solucion h2 {
    text-align: left;
}

.solucion h2:after {
    margin-left: 0;
}

@media (max-width: 992px) {
    .solucion .container {
        flex-direction: column;
    }
    
    .solucion-content {
        padding-right: 0;
        margin-bottom: 2rem;
        text-align: center;
    }
    
    .solucion h2 {
        text-align: center;
    }
    
    .solucion h2:after {
        margin: 1rem auto 0;
    }
}

/* ==================== 
   Proceso Section - Timeline 
   ==================== */
.proceso {
    background-color: var(--color-white);
    position: relative;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 3rem auto 0;
}

.timeline:before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50px;
    width: 4px;
    background-color: var(--color-primary);
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    margin-bottom: 2.5rem;
    padding-left: 100px;
}

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

.timeline-number {
    position: absolute;
    left: 0;
    top: 0;
    width: 50px;
    height: 50px;
    background-color: var(--color-primary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.5rem;
    z-index: 1;
}

.timeline-content {
    background-color: var(--color-bg);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal);
    position: relative;
}

.timeline-content:hover {
    transform: translateX(10px);
}

.timeline-icon {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-size: 1.5rem;
    color: var(--color-secondary);
}

/* ==================== 
   Planes Section 
   ==================== */
.planes {
    background-color: var(--color-bg);
    position: relative;
}

.planes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.plan-card {
    background-color: var(--color-white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    position: relative;
}

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

.plan-card.featured {
    border: 2px solid var(--color-secondary);
    transform: scale(1.05);
    z-index: 1;
}

.plan-card.featured:hover {
    transform: scale(1.05) translateY(-10px);
}

.ribbon {
    position: absolute;
    top: 20px;
    right: -30px;
    background-color: var(--color-secondary);
    color: var(--color-white);
    font-family: var(--font-heading);
    font-weight: 600;
    padding: 5px 30px;
    transform: rotate(45deg);
    z-index: 1;
}

.plan-header {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 2rem;
    text-align: center;
}

.plan-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.plan-price {
    font-size: 2.5rem;
    font-family: var(--font-heading);
    font-weight: 700;
    margin-top: 1rem;
}

.plan-price span {
    font-size: 1rem;
    opacity: 0.8;
}

.plan-features {
    padding: 2rem;
}

.plan-features ul li {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
}

.plan-features ul li i {
    margin-right: 10px;
    font-size: 1.2rem;
}

.plan-features ul li i.fa-check {
    color: var(--color-primary);
}

.plan-features ul li i.fa-times {
    color: var(--color-gray);
}

.plan-card .btn {
    display: block;
    margin: 0 2rem 2rem;
}

/* ==================== 
   Testimonios Section 
   ==================== */
.testimonios {
    background-color: var(--color-white);
    position: relative;
}

.testimonios-slider {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.testimonio-slide {
    display: none;
}

.testimonio-slide.active {
    display: block;
    animation: fadeIn 0.5s;
}

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

.testimonio-content {
    background-color: var(--color-bg);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
    position: relative;
}

.testimonio-content:after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50px;
    width: 30px;
    height: 30px;
    background-color: var(--color-bg);
    transform: rotate(45deg);
    z-index: -1;
}

.cliente-info {
    display: flex;
    align-items: center;
    margin-top: 2rem;
}

.cliente-info img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin-right: 1rem;
    object-fit: cover;
    border: 3px solid var(--color-white);
    box-shadow: var(--shadow-sm);
}

.cliente-info h4 {
    margin-bottom: 0.2rem;
}

.empresa {
    font-size: 0.875rem;
    color: var(--color-gray);
}

.testimonio-texto {
    font-style: italic;
    position: relative;
    padding-left: 2rem;
}

.testimonio-texto:before {
    content: '"';
    position: absolute;
    left: 0;
    top: -0.5rem;
    font-size: 3rem;
    color: var(--color-secondary);
    font-family: Georgia, serif;
    opacity: 0.5;
}

.testimonio-navigation {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 2rem;
}

.prev-testimonio, .next-testimonio {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-primary);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.prev-testimonio:hover, .next-testimonio:hover {
    color: var(--color-secondary);
}

.testimonio-dots {
    display: flex;
    margin: 0 1rem;
}

.testimonio-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--color-light-gray);
    margin: 0 5px;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.testimonio-dot.active {
    background-color: var(--color-primary);
}

/* ==================== 
   FAQ Section 
   ==================== */
.faq {
    background-color: var(--color-bg);
    position: relative;
}

.faq-accordion {
    max-width: 800px;
    margin: 3rem auto 0;
}

.faq-item {
    margin-bottom: 1rem;
    border-radius: var(--border-radius-md);
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.faq-question {
    padding: 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color var(--transition-fast);
}

.faq-question:hover {
    background-color: rgba(0, 78, 137, 0.05);
}

.faq-question h3 {
    margin-bottom: 0;
    font-size: 1.2rem;
}

.faq-icon {
    color: var(--color-primary);
    transition: transform var(--transition-fast);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    display: none;
    padding: 0 1.5rem 1.5rem;
}

.faq-item.active .faq-answer {
    display: block;
    animation: slideDown 0.3s;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==================== 
   Contacto Section 
   ==================== */
.contacto {
    background-color: var(--color-white);
    position: relative;
}

.contacto-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
}

.contacto-info h2 {
    text-align: left;
}

.contacto-info h2:after {
    margin-left: 0;
}

.contacto-detalles {
    margin: 2rem 0;
}

.contacto-item {
    display: flex;
    margin-bottom: 1.5rem;
}

.contacto-item i {
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-right: 1rem;
    margin-top: 0.25rem;
}

.contacto-item h4 {
    margin-bottom: 0.2rem;
    color: var(--color-primary);
}

.google-map {
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    margin-top: 2rem;
}

.contacto-form-wrapper {
    background-color: var(--color-bg);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
}

.contacto-form .form-group {
    margin-bottom: 1.5rem;
}

.contacto-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.contacto-form input,
.contacto-form select,
.contacto-form textarea {
    width: 100%;
    padding: 12px;
    border-radius: var(--border-radius-md);
    border: 1px solid var(--color-light-gray);
    font-family: var(--font-body);
    transition: border-color var(--transition-fast);
}

.contacto-form input:focus,
.contacto-form select:focus,
.contacto-form textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.full-width {
    grid-column: 1 / -1;
}

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

.checkbox-group input {
    width: auto;
    margin-right: 10px;
}

.checkbox-group label {
    margin-bottom: 0;
    font-weight: 400;
}

@media (max-width: 768px) {
    .contacto-info h2 {
        text-align: center;
    }
    
    .contacto-info h2:after {
        margin: 1rem auto 0;
    }
}

/* ==================== 
   Newsletter Section 
   ==================== */
.newsletter {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 60px 0;
}

.newsletter-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.newsletter-content {
    flex: 1;
    min-width: 300px;
    margin-bottom: 1rem;
}

.newsletter-content h3 {
    color: var(--color-white);
    margin-bottom: 0.5rem;
}

.newsletter-content p {
    opacity: 0.9;
    margin-bottom: 0;
}

.newsletter-form {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    min-width: 300px;
}

.newsletter-form .form-group {
    flex: 1;
    margin-right: 1rem;
    margin-bottom: 1rem;
}

.newsletter-form input {
    width: 100%;
    padding: 12px;
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(255, 255, 255, 0.2);
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    font-family: var(--font-body);
}

.newsletter-form input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

/* ==================== 
   Footer 
   ==================== */
.footer {
    background-color: var(--color-dark);
    color: var(--color-white);
    padding: 60px 0 30px;
}

.footer-top {
    display: flex;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.footer-logo {
    flex: 1;
    min-width: 300px;
    margin-bottom: 2rem;
}

.footer-logo img {
    height: 40px;
    margin-bottom: 1rem;
}

.footer-logo p {
    opacity: 0.7;
    max-width: 300px;
}

.footer-links {
    flex: 2;
    display: flex;
    flex-wrap: wrap;
}

.footer-col {
    flex: 1;
    min-width: 200px;
    margin-bottom: 2rem;
}

.footer-col h4 {
    color: var(--color-white);
    margin-bottom: 1.5rem;
    position: relative;
}

.footer-col h4:after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--color-secondary);
}

.footer-col ul li {
    margin-bottom: 0.8rem;
}

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

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    opacity: 0.7;
    margin-bottom: 0;
    font-size: 0.875rem;
}

/* ==================== 
   Back to Top Button 
   ==================== */
#back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--color-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 99;
    border: none;
}

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

#back-to-top:hover {
    background-color: var(--color-secondary);
    transform: translateY(-5px);
}

/* ==================== 
   Cookie Consent 
   ==================== */
.cookie-consent {
    position: fixed;
    bottom: -100%;
    left: 0;
    width: 100%;
    background-color: var(--color-white);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    padding: 1.5rem 0;
    z-index: 9999;
    transition: bottom var(--transition-normal);
}

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

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

.cookie-content p {
    margin-bottom: 1rem;
    margin-right: 1rem;
    flex: 1;
}

.cookie-buttons {
    display: flex;
}

.cookie-buttons .btn:first-child {
    margin-right: 0.5rem;
}

/* ==================== 
   Media Queries 
   ==================== */
@media (max-width: 576px) {
    section {
        padding: 60px 0;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    .hero {
        padding-top: 100px;
        padding-bottom: 60px;
    }
    
    .plan-card.featured {
        transform: scale(1);
    }
    
    .plan-card.featured:hover {
        transform: translateY(-10px);
    }
    
    .cookie-content {
        flex-direction: column;
        text-align: center;
    }
    
    .cookie-content p {
        margin-right: 0;
    }
}

/* ==================== 
   Animaciones 
   ==================== */
@keyframes float {
    0% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-15px);
    }
    100% {
        transform: translateY(0);
    }
}

.floating {
    animation: float 4s ease-in-out infinite;
}

/* Scroll Reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all var(--transition-slow);
}

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

/* Micro-vibración para CTA */
@keyframes microVibration {
    0% {
        transform: translateX(0);
    }
    25% {
        transform: translateX(-2px);
    }
    50% {
        transform: translateX(2px);
    }
    75% {
        transform: translateX(-2px);
    }
    100% {
        transform: translateX(0);
    }
}

.btn-primary:hover, .btn-secondary:hover {
    animation: microVibration 0.5s;
}