/* ============================================
   RESET Y VARIABLES
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colores cálidos - inspiración salvadoreña */
    --primary: #EA580C;
    --primary-dark: #C2410C;
    --primary-light: #F97316;
    --secondary: #DC2626;
    --secondary-dark: #B91C1C;
    --cream: #FFF5E8;
    --cream-dark: #FEE2D6;
    --dark: #1A1A1A;
    --dark-gray: #2D2D2D;
    --gray: #6B7280;
    --light-gray: #F3F4F6;
    --white: #FFFFFF;
    --success: #10B981;
    
    /* Tipografía */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    
    /* Espaciados */
    --container-width: 1280px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

/* ============================================
   BASE
   ============================================ */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--dark);
    background-color: var(--white);
    line-height: 1.5;
    overflow-x: hidden;
}

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

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

@media (max-width: 768px) {
    section {
        padding: var(--spacing-lg) 0;
    }
}

/* ============================================
   TIPOGRAFÍA
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
}

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

.section-tag {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

@media (max-width: 768px) {
    .section-title {
        font-size: 1.875rem;
    }
}

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

/* ============================================
   BOTONES
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
    cursor: pointer;
    border: 2px solid transparent;
    font-size: 1rem;
}

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

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

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

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

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

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

.btn--large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn--small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

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

/* ============================================
   HEADER
   ============================================ */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: var(--white);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
}

.header__inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 700;
}

.logo__icon {
    font-size: 2rem;
}

.logo__text {
    color: var(--dark);
}

.logo__highlight {
    color: var(--primary);
}

/* Navegación */
.nav__menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.nav__menu a {
    text-decoration: none;
    color: var(--dark-gray);
    font-weight: 500;
    transition: color 0.3s ease;
}

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

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

@media (max-width: 768px) {
    .nav__toggle {
        display: block;
    }
    
    .nav__menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--white);
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        gap: var(--spacing-sm);
    }
    
    .nav__menu.active {
        display: flex;
    }
}

/* ============================================
   HERO
   ============================================ */
.hero {
    padding-top: 100px;
    background: linear-gradient(135deg, var(--cream) 0%, var(--white) 100%);
}

.hero__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.hero__title {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.hero__highlight {
    color: var(--primary);
}

.hero__subtitle {
    font-size: 1.125rem;
    color: var(--gray);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.hero__buttons {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.hero__trust {
    display: flex;
    gap: var(--spacing-md);
    color: var(--gray);
    font-size: 0.875rem;
}

.hero__trust i {
    color: var(--success);
    margin-right: 0.25rem;
}

.hero__image img {
    width: 100%;
    height: auto;
    border-radius: 1rem;
    box-shadow: var(--shadow-xl);
}

@media (max-width: 768px) {
    .hero__grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero__title {
        font-size: 2rem;
    }
    
    .hero__buttons {
        justify-content: center;
    }
    
    .hero__trust {
        justify-content: center;
        flex-wrap: wrap;
    }
}

/* ============================================
   PROBLEMAS
   ============================================ */
.problems__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.problem-card {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--white);
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease;
}

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

.problem-card i {
    font-size: 3rem;
    color: var(--secondary);
    margin-bottom: var(--spacing-sm);
}

.problem-card h3 {
    margin-bottom: var(--spacing-xs);
}

.problem-card p {
    color: var(--gray);
}

/* ============================================
   CÓMO FUNCIONA
   ============================================ */
.how-it-works {
    background-color: var(--cream);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    text-align: center;
}

.step {
    position: relative;
    padding: var(--spacing-md);
}

.step__number {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 40px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.25rem;
}

.step i {
    font-size: 3rem;
    color: var(--primary);
    margin: var(--spacing-md) 0;
}

.step h3 {
    margin-bottom: var(--spacing-xs);
}

/* ============================================
   BENEFICIOS
   ============================================ */
.benefits__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.benefit-card {
    padding: var(--spacing-md);
    background: var(--white);
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 1px solid var(--cream-dark);
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.benefit-card i {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.benefit-card h3 {
    margin-bottom: var(--spacing-xs);
}

/* ============================================
   FUNCIONALIDADES
   ============================================ */
.features {
    background-color: var(--light-gray);
}

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

.features__column h3 {
    margin-bottom: var(--spacing-md);
    font-size: 1.5rem;
}

.features__column h3 i {
    color: var(--primary);
    margin-right: 0.5rem;
}

.features__list {
    list-style: none;
}

.features__list li {
    padding: var(--spacing-xs) 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.features__list i {
    color: var(--success);
}

/* ============================================
   EJEMPLO
   ============================================ */
.example {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    color: var(--white);
}

.example__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.example__text .section-tag {
    color: var(--cream);
}

.example__text h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

.example__text p {
    margin-bottom: var(--spacing-md);
    opacity: 0.95;
}

.url-preview {
    background: var(--white);
    color: var(--dark);
    padding: var(--spacing-sm);
    border-radius: 0.5rem;
    margin-bottom: var(--spacing-md);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: monospace;
}

.menu-preview {
    background: var(--white);
    border-radius: 1rem;
    padding: var(--spacing-md);
    color: var(--dark);
}

.menu-preview__item {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--light-gray);
}

@media (max-width: 768px) {
    .example__content {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   COMPARACIÓN
   ============================================ */
.comparison__table-wrapper {
    overflow-x: auto;
}

.comparison__table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.comparison__table th,
.comparison__table td {
    padding: var(--spacing-sm);
    text-align: left;
    border-bottom: 1px solid var(--light-gray);
}

.comparison__table th {
    background: var(--primary);
    color: var(--white);
    font-weight: 600;
}

.comparison__table td:first-child {
    font-weight: 600;
}

.comparison__table .fa-check {
    color: var(--success);
}

.comparison__table .fa-times {
    color: var(--secondary);
}

/* ============================================
   PRECIOS
   ============================================ */
.pricing {
    background-color: var(--cream);
}

.pricing__card {
    max-width: 500px;
    margin: 0 auto;
    background: var(--white);
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    position: relative;
}

.pricing__badge {
    position: absolute;
    top: 20px;
    right: -30px;
    background: var(--secondary);
    color: var(--white);
    padding: 0.5rem 2rem;
    transform: rotate(45deg);
    font-size: 0.75rem;
    font-weight: 600;
}

.pricing__header {
    padding: var(--spacing-lg);
    text-align: center;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    color: var(--white);
}

.pricing__price {
    margin: var(--spacing-md) 0;
}

.pricing__price .currency {
    font-size: 1.5rem;
    vertical-align: top;
}

.pricing__price .amount {
    font-size: 4rem;
    font-weight: 700;
}

.pricing__price .period {
    font-size: 1rem;
}

.pricing__features {
    padding: var(--spacing-lg);
    list-style: none;
}

.pricing__features li {
    padding: var(--spacing-xs) 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.pricing__features i {
    color: var(--success);
}

.pricing__footer {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
}

.pricing__note {
    background: var(--light-gray);
    padding: var(--spacing-sm);
    border-radius: 0.5rem;
    margin-bottom: var(--spacing-md);
    font-size: 0.875rem;
    text-align: center;
}

.pricing__small {
    text-align: center;
    font-size: 0.75rem;
    color: var(--gray);
    margin-top: var(--spacing-sm);
}

/* ============================================
   FAQ
   ============================================ */
.faq__grid {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: var(--spacing-sm);
    border: 1px solid var(--light-gray);
    border-radius: 0.5rem;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--white);
    border: none;
    text-align: left;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.3s ease;
}

.faq-question:hover {
    background: var(--cream);
}

.faq-question i {
    transition: transform 0.3s ease;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    padding: 0 var(--spacing-md);
    color: var(--gray);
}

.faq-item.active .faq-answer {
    max-height: 200px;
    padding: 0 var(--spacing-md) var(--spacing-md);
}

/* ============================================
   CTA FINAL
   ============================================ */
.cta-final {
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-gray) 100%);
    color: var(--white);
    text-align: center;
}

.cta-final__content h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.cta-final__content p {
    margin-bottom: var(--spacing-lg);
    font-size: 1.125rem;
    opacity: 0.9;
}

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

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--dark);
    color: var(--gray);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer__brand p {
    margin: var(--spacing-sm) 0;
}

.footer__social {
    display: flex;
    gap: var(--spacing-sm);
}

.footer__social a {
    color: var(--gray);
    font-size: 1.25rem;
    transition: color 0.3s ease;
}

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

.footer__links h4,
.footer__contact h4 {
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

.footer__links ul {
    list-style: none;
}

.footer__links a {
    color: var(--gray);
    text-decoration: none;
    transition: color 0.3s ease;
    display: inline-block;
    margin-bottom: var(--spacing-xs);
}

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

.footer__contact p {
    margin-bottom: var(--spacing-xs);
}

.footer__contact i {
    margin-right: 0.5rem;
    color: var(--primary);
}

.footer__copyright {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.875rem;
}

@media (max-width: 768px) {
    .footer__grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
}

/* ============================================
   BOTÓN FLOTANTE DE DEMO
   ============================================ */
.floating-demo {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 999;
}

.floating-demo__button {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--primary);
    color: var(--white);
    padding: 1rem 1.5rem;
    border-radius: 3rem;
    text-decoration: none;
    font-weight: 600;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
    animation: pulse 2s infinite;
}

.floating-demo__button:hover {
    background: var(--primary-dark);
    transform: scale(1.05);
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(234, 88, 12, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(234, 88, 12, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(234, 88, 12, 0);
    }
}

@media (max-width: 768px) {
    .floating-demo {
        bottom: 1rem;
        right: 1rem;
    }
    
    .floating-demo__button {
        padding: 0.75rem 1.25rem;
        font-size: 0.875rem;
    }
}

/* ============================================
   MODAL
   ============================================ */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal__content {
    background: var(--white);
    border-radius: 1rem;
    max-width: 500px;
    width: 90%;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

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

.modal__header h3 {
    font-size: 1.25rem;
}

.modal__close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray);
    transition: color 0.3s ease;
}

.modal__close:hover {
    color: var(--secondary);
}

.modal__body {
    padding: var(--spacing-md);
}

.modal__buttons {
    margin: var(--spacing-md) 0;
}

.modal__note {
    font-size: 0.75rem;
    color: var(--gray);
    margin-top: var(--spacing-sm);
    text-align: center;
}

.modal__note code {
    background: var(--light-gray);
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
}

/* ============================================
   ANIMACIONES DE SCROLL
   ============================================ */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   UTILIDADES
   ============================================ */
img {
    max-width: 100%;
    height: auto;
}

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