/* ============================================
   VARIABLES Y ESTILOS BASE
   ============================================ */

:root {
    /* Colores - Paleta Art 4 Hotel */
    --olive: #5C6B4F;
    --olive-dark: #3D4A33;
    --brown: #6B4F3C;
    --sand: #D4C5A9;
    --sand-light: #E8DFC8;
    --sand-pale: #F5F0E5;
    --cream: #FAF7F0;
    --charcoal: #2C2C2C;
    --warm-gray: #8A8075;
    --light-gray: #F0EEEA;
    --white: #FFFFFF;
    
    /* Colores de acento */
    --accent: #5C6B4F;
    --accent-dark: #3D4A33;
    
    /* Tipografía */
    --font-serif: 'Playfair Display', serif;
    --font-sans: 'DM Sans', sans-serif;
    --font-modern: 'Outfit', sans-serif;
    
    /* Espaciado */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-2xl: 64px;
    --spacing-3xl: 80px;
    
    /* Transiciones */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Breakpoints */
    --breakpoint-sm: 640px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1280px;
}

/* Reset y estilos globales */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--white);
    color: var(--charcoal);
    line-height: 1.6;
    font-size: 16px;
}

/* Tipografía */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: 600;
    line-height: 1.3;
}

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

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

a:hover {
    color: var(--accent-dark);
}

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

/* ============================================
   BOTONES
   ============================================ */

.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 2px solid transparent;
    border-radius: 4px;
    font-family: var(--font-sans);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all var(--transition-base);
    text-align: center;
    font-size: 14px;
}

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

.btn--primary:hover {
    background-color: var(--accent-dark);
    border-color: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(60, 74, 51, 0.2);
}

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

.btn--secondary:hover {
    background-color: var(--sand-pale);
    border-color: var(--accent-dark);
}

/* ============================================
   HEADER
   ============================================ */

.header {
    background-color: var(--white);
    border-bottom: 1px solid var(--sand-light);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: box-shadow var(--transition-base);
}

.header:hover {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.header__container {
    max-width: 1280px;
    margin: 0 auto;
    padding: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header__logo {
    flex-shrink: 0;
}

.header__logo img {
    height: 50px;
    width: auto;
}

.header__nav {
    display: none;
}

.header__menu {
    list-style: none;
    display: flex;
    gap: var(--spacing-xl);
}

.header__menu a {
    font-family: var(--font-sans);
    font-weight: 500;
    color: var(--charcoal);
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 1px;
    padding: var(--spacing-sm) 0;
    border-bottom: 2px solid transparent;
    transition: all var(--transition-base);
}

.header__menu a:hover {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

/* Menú Hamburguesa */
.header__menu-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    transition: all var(--transition-base);
}

.header__menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--charcoal);
    transition: all var(--transition-base);
    border-radius: 2px;
}

.header__menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(10px, 10px);
}

.header__menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

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

.header__nav.active {
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--white);
    border-bottom: 1px solid var(--sand-light);
    padding: var(--spacing-lg);
    animation: slideDown var(--transition-base);
}

.header__nav.active .header__menu {
    flex-direction: column;
    gap: var(--spacing-md);
}

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

/* ============================================
   SECCIÓN HERO
   ============================================ */

.hero {
    padding: var(--spacing-xl) var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    align-items: center;
}

.hero__content {
    text-align: center;
    animation: fadeInUp 0.8s ease;
}

.hero__title {
    font-size: 32px;
    color: var(--charcoal);
    margin-bottom: var(--spacing-md);
    font-weight: 700;
}

.hero__subtitle {
    font-size: 16px;
    color: var(--warm-gray);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.hero__image {
    width: 100%;
    max-width: 600px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    animation: fadeInUp 0.8s ease 0.2s both;
}

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

.hero:hover .hero__image img {
    transform: scale(1.02);
}

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

/* ============================================
   SECCIÓN SERVICIOS
   ============================================ */

.services {
    padding: var(--spacing-3xl) var(--spacing-md);
    background: linear-gradient(135deg, var(--sand-pale) 0%, var(--cream) 100%);
}

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

.section__title {
    font-size: 28px;
    color: var(--charcoal);
    margin-bottom: var(--spacing-md);
}

.section__subtitle {
    font-size: 16px;
    color: var(--warm-gray);
}

.services__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    max-width: 1200px;
    margin: 0 auto;
}

/* Tarjetas de servicio */
.service-card {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: 8px;
    text-align: center;
    transition: all var(--transition-base);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--sand-light);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(92, 107, 79, 0.15);
    border-color: var(--accent);
}

.service-card__icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--sand-pale), var(--sand-light));
    border-radius: 8px;
    font-size: 28px;
    color: var(--accent);
    transition: all var(--transition-base);
}

.service-card:hover .service-card__icon {
    background: linear-gradient(135deg, var(--accent), var(--olive));
    color: var(--white);
    transform: scale(1.1);
}

.service-card__title {
    font-size: 18px;
    color: var(--charcoal);
    margin-bottom: var(--spacing-sm);
}

.service-card__description {
    font-size: 14px;
    color: var(--warm-gray);
    line-height: 1.8;
}

/* ============================================
   SECCIÓN ABOUT
   ============================================ */

.about {
    padding: var(--spacing-3xl) var(--spacing-md);
}

.about__container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3xl);
}

.about__content {
    order: 2;
}

.about__image {
    order: 1;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.about__image img {
    width: 100%;
    height: auto;
    display: block;
}

.about__text {
    font-size: 16px;
    color: var(--charcoal);
    line-height: 1.9;
    margin-bottom: var(--spacing-lg);
}

.about__text:first-of-type {
    margin-top: 0;
}

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

.footer {
    background-color: var(--charcoal);
    color: var(--light-gray);
    padding: var(--spacing-3xl) var(--spacing-md) var(--spacing-xl);
}

.footer__container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer__section {
    animation: fadeIn 0.6s ease;
}

.footer__title {
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--sand);
    margin-bottom: var(--spacing-md);
}

.footer__menu {
    list-style: none;
}

.footer__menu li {
    margin-bottom: var(--spacing-sm);
}

.footer__menu a {
    color: var(--light-gray);
    transition: color var(--transition-base);
    font-size: 14px;
}

.footer__menu a:hover {
    color: var(--sand);
}

.footer__text {
    font-size: 14px;
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.footer__text i {
    color: var(--sand);
    width: 18px;
}

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

.footer__social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--warm-gray);
    border-radius: 50%;
    color: var(--light-gray);
    transition: all var(--transition-base);
}

.footer__social-link:hover {
    background-color: var(--accent);
    border-color: var(--accent);
    color: var(--white);
    transform: translateY(-2px);
}

.footer__bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(212, 197, 169, 0.2);
    font-size: 12px;
    color: var(--warm-gray);
}

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

/* ============================================
   MEDIA QUERIES - TABLET (640px)
   ============================================ */

@media (min-width: 640px) {
    .header__container {
        padding: var(--spacing-lg);
    }

    .hero {
        padding: var(--spacing-3xl) var(--spacing-lg);
        gap: var(--spacing-2xl);
        flex-direction: row;
        align-items: center;
    }

    .hero__content {
        flex: 1;
        text-align: left;
    }

    .hero__title {
        font-size: 40px;
    }

    .hero__image {
        flex: 1;
    }

    .services {
        padding: var(--spacing-3xl) var(--spacing-lg);
    }

    .services__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-2xl);
    }

    .about__container {
        flex-direction: row;
        align-items: center;
        gap: var(--spacing-2xl);
    }

    .about__content {
        order: 1;
        flex: 1;
    }

    .about__image {
        order: 2;
        flex: 1;
    }

    .footer__container {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-2xl);
    }
}

/* ============================================
   MEDIA QUERIES - DESKTOP (768px+)
   ============================================ */

@media (min-width: 768px) {
    .header__menu-toggle {
        display: none;
    }

    .header__nav {
        display: block;
        position: static;
        padding: 0;
        border: none;
    }

    .services__grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .footer__container {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ============================================
   MEDIA QUERIES - DESKTOP GRANDE (1024px+)
   ============================================ */

@media (min-width: 1024px) {
    body {
        font-size: 18px;
    }

    .hero__title {
        font-size: 48px;
    }

    .hero__subtitle {
        font-size: 18px;
    }

    .section__title {
        font-size: 36px;
    }

    .service-card {
        padding: var(--spacing-2xl);
    }

    .service-card__icon {
        width: 80px;
        height: 80px;
        font-size: 36px;
    }

    .about__text {
        font-size: 18px;
    }
}

/* ============================================
   UTILIDADES Y ACCESIBILIDAD
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

@media (max-width: 639px) {
    .services {
        padding: var(--spacing-2xl) var(--spacing-md);
    }

    .services__header {
        margin-bottom: var(--spacing-2xl);
    }

    .about {
        padding: var(--spacing-2xl) var(--spacing-md);
    }
}

/* Focus visible para accesibilidad */
.btn:focus-visible,
.header__menu a:focus-visible,
.footer__menu a:focus-visible,
.footer__social-link:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}