/* ========================================
   King Fast Food Gijón - Styles
   Modern, Clean & Elegant Design
   ======================================== */

/* CSS Variables */
:root {
    /* Colors */
    --color-primary: #e63946;
    --color-primary-dark: #c1121f;
    --color-primary-light: #ff6b6b;
    --color-secondary: #fca311;
    --color-secondary-dark: #e59100;
    --color-dark: #1d1d1d;
    --color-dark-light: #2d2d2d;
    --color-gray: #6c757d;
    --color-gray-light: #f8f9fa;
    --color-white: #ffffff;
    --color-text: #333333;
    --color-text-light: #666666;

    /* Typography */
    --font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-size-base: 16px;
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 50%;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Header height */
    --header-height: 70px;
}

/* ========================================
   Base Styles
   ======================================== */

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

html {
    scroll-behavior: smooth;
    font-size: var(--font-size-base);
}

body {
    font-family: var(--font-family);
    font-weight: var(--font-weight-regular);
    color: var(--color-text);
    line-height: 1.6;
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

address {
    font-style: normal;
}

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

/* Section */
.section {
    padding: var(--spacing-3xl) 0;
}

.section__title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: var(--font-weight-bold);
    color: var(--color-dark);
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.section__subtitle {
    font-size: 1.125rem;
    color: var(--color-gray);
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.875rem 1.75rem;
    font-family: var(--font-family);
    font-size: 1rem;
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    text-align: center;
}

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

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

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

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

.btn--large {
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
}

/* ========================================
   Header & Navigation
   ======================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: transparent;
    z-index: 1000;
    transition: all var(--transition-base);
}

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

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
}

.nav__logo img {
    height: 45px;
    width: auto;
}

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

.nav__list {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav__link {
    font-size: 0.9375rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-white);
    position: relative;
    padding: var(--spacing-xs) 0;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width var(--transition-base);
}

.nav__link:hover::after,
.nav__link.active::after {
    width: 100%;
}

.nav__cta {
    display: inline-flex;
    align-items: center;
    padding: 0.625rem 1.25rem;
    background-color: var(--color-primary);
    color: var(--color-white);
    font-size: 0.875rem;
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-md);
    margin-left: var(--spacing-xl);
    transition: all var(--transition-base);
}

.nav__cta:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
}

.nav__toggle,
.nav__close {
    display: none;
    background: none;
    border: none;
    color: var(--color-white);
    cursor: pointer;
    padding: var(--spacing-sm);
}

/* Mobile Navigation */
@media screen and (max-width: 968px) {
    .nav__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 400px;
        height: 100vh;
        background-color: var(--color-dark);
        flex-direction: column;
        justify-content: center;
        padding: var(--spacing-2xl);
        transition: right var(--transition-base);
        box-shadow: var(--shadow-xl);
    }

    .nav__menu.show-menu {
        right: 0;
    }

    .nav__list {
        flex-direction: column;
        gap: var(--spacing-lg);
    }

    .nav__link {
        font-size: 1.25rem;
    }

    .nav__close {
        display: block;
        position: absolute;
        top: var(--spacing-lg);
        right: var(--spacing-lg);
    }

    .nav__toggle {
        display: block;
    }

    .nav__cta {
        margin-left: 0;
        margin-top: var(--spacing-xl);
    }
}

/* ========================================
   Hero Section
   ======================================== */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-light) 100%);
    background-image: url('https://images.unsplash.com/photo-1529006557810-274b9b2fc783?auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.hero__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(0, 0, 0, 0.8) 0%,
        rgba(0, 0, 0, 0.6) 50%,
        rgba(230, 57, 70, 0.4) 100%
    );
}

.hero__content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    padding: var(--spacing-xl);
}

.hero__title {
    font-size: clamp(2rem, 6vw, 3.5rem);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.hero__subtitle {
    font-size: clamp(1rem, 2.5vw, 1.375rem);
    color: var(--color-secondary);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-md);
}

.hero__description {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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

/* ========================================
   About Section
   ======================================== */

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

.about__content {
    max-width: 900px;
    margin: 0 auto;
}

.about__text {
    text-align: center;
}

.about__text p {
    font-size: 1.0625rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.about__text strong {
    color: var(--color-dark);
}

.about__features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.feature {
    text-align: center;
    padding: var(--spacing-xl);
    background-color: var(--color-gray-light);
    border-radius: var(--radius-lg);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.feature:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background-color: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-md);
}

.feature h3 {
    font-size: 1.125rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-dark);
    margin-bottom: var(--spacing-sm);
}

.feature p {
    font-size: 0.9375rem;
    color: var(--color-gray);
}

/* ========================================
   Menu Section
   ======================================== */

.menu {
    background-color: var(--color-gray-light);
}

.menu__filter {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-2xl);
}

.filter__btn {
    padding: 0.625rem 1.25rem;
    font-family: var(--font-family);
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
    background-color: var(--color-white);
    border: 2px solid var(--color-white);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
}

.filter__btn:hover,
.filter__btn.active {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

.menu__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

/* Product Card */
.product-card {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

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

.product-card__image {
    position: relative;
    aspect-ratio: 1 / 1;
    overflow: hidden;
}

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

.product-card:hover .product-card__image img {
    transform: scale(1.05);
}

.product-card__category {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    padding: 0.375rem 0.75rem;
    background-color: var(--color-primary);
    color: var(--color-white);
    font-size: 0.75rem;
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-sm);
    text-transform: uppercase;
}

.product-card__content {
    padding: var(--spacing-lg);
}

.product-card__title {
    font-size: 1.0625rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-dark);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.product-card__description {
    font-size: 0.875rem;
    color: var(--color-gray);
    margin-bottom: var(--spacing-md);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.product-card__price {
    font-size: 1.25rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
}

.product-card__price span {
    font-size: 0.875rem;
    font-weight: var(--font-weight-regular);
    color: var(--color-gray);
}

.product-card__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.625rem 1rem;
    background-color: var(--color-dark);
    color: var(--color-white);
    font-size: 0.8125rem;
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.product-card__btn:hover {
    background-color: var(--color-primary);
    transform: translateY(-2px);
}

.menu__cta {
    text-align: center;
    margin-top: var(--spacing-2xl);
    padding: var(--spacing-2xl);
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
}

.menu__cta p {
    font-size: 1.125rem;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
}

/* ========================================
   Schedule Section
   ======================================== */

.schedule {
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-light) 100%);
    color: var(--color-white);
}

.schedule .section__title,
.schedule .section__subtitle {
    color: var(--color-white);
}

.schedule .section__subtitle {
    opacity: 0.8;
}

.schedule__content {
    display: flex;
    justify-content: center;
}

.schedule__card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    text-align: center;
    max-width: 400px;
    width: 100%;
}

.schedule__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background-color: var(--color-primary);
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-lg);
}

.schedule__card h3 {
    font-size: 1.375rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-lg);
}

.schedule__times {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.schedule__time {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
}

.schedule__label {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.7);
}

.schedule__value {
    font-size: 1.125rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-secondary);
}

.schedule__note {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.6;
}

/* ========================================
   Location Section
   ======================================== */

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

.location__content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

.location__info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.location__card {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background-color: var(--color-gray-light);
    border-radius: var(--radius-lg);
}

.location__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background-color: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.location__card h3 {
    font-size: 0.875rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-xs);
}

.location__card address,
.location__card a {
    font-size: 1rem;
    color: var(--color-dark);
    line-height: 1.6;
}

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

.location__map {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.location__map iframe {
    display: block;
}

@media screen and (max-width: 868px) {
    .location__content {
        grid-template-columns: 1fr;
    }

    .location__map {
        order: -1;
    }
}

/* ========================================
   Contact Section
   ======================================== */

.contact {
    background-color: var(--color-gray-light);
}

.contact__content {
    max-width: 800px;
    margin: 0 auto;
}

.contact__methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.contact__card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--spacing-xl);
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.contact__card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.contact__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background-color: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-md);
}

.contact__card h3 {
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-dark);
    margin-bottom: var(--spacing-xs);
}

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

.contact__social {
    text-align: center;
}

.contact__social h3 {
    font-size: 1.125rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-dark);
    margin-bottom: var(--spacing-lg);
}

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

.social__link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    color: var(--color-white);
    transition: all var(--transition-base);
}

.social__link--facebook {
    background-color: #1877F2;
}

.social__link--instagram {
    background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
}

.social__link:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

/* ========================================
   Footer
   ======================================== */

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

.footer__content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer__brand img {
    height: 40px;
    width: auto;
    margin-bottom: var(--spacing-md);
}

.footer__brand p {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
}

.footer__links h4,
.footer__contact h4,
.footer__app h4 {
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-lg);
    color: var(--color-white);
}

.footer__links ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer__links a {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-fast);
}

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

.footer__contact p {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.footer__contact a {
    color: rgba(255, 255, 255, 0.7);
}

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

.footer__app p {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-md);
}

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

.footer__bottom p {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.5);
}

/* ========================================
   Responsive Design
   ======================================== */

@media screen and (max-width: 768px) {
    .section {
        padding: var(--spacing-2xl) 0;
    }

    .hero {
        background-attachment: scroll;
    }

    .hero__buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
    }

    .about__features {
        grid-template-columns: 1fr;
    }

    .menu__grid {
        grid-template-columns: 1fr;
    }

    .footer__content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer__brand img {
        margin-left: auto;
        margin-right: auto;
    }
}

/* ========================================
   Animations
   ======================================== */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease forwards;
}

/* Smooth scroll offset for fixed header */
html {
    scroll-padding-top: var(--header-height);
}

/* Loading state for products */
.menu__grid.loading {
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.menu__grid.loading::after {
    content: 'Cargando productos...';
    font-size: 1rem;
    color: var(--color-gray);
}

/* No products message */
.no-products {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--color-gray);
}