/* ========================================
   CSS VARIABLES
   ======================================== */
:root {
    /* Korean restaurant colors - warm and vibrant */
    --primary-color: #E53935;
    --primary-dark: #C62828;
    --primary-light: #FFCDD2;
    --accent-color: #FFC107;
    --accent-dark: #FFA000;

    /* Neutral colors */
    --dark-bg: #1A1A1A;
    --dark-text: #2C2C2C;
    --light-bg: #FFFFFF;
    --light-text: #F5F5F5;
    --gray-100: #F8F9FA;
    --gray-200: #E9ECEF;
    --gray-300: #DEE2E6;
    --gray-400: #CED4DA;
    --gray-600: #6C757D;
    --gray-800: #343A40;

    /* Typography */
    --font-heading: 'Georgia', 'Times New Roman', serif;
    --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', sans-serif;

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

    /* Container */
    --container-width: 1140px;

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

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.15);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.2);
}

/* ========================================
   RESET & BASE STYLES
   ======================================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

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

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

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

ul {
    list-style: none;
}

/* ========================================
   LAYOUT COMPONENTS
   ======================================== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

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

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

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3rem);
    color: var(--dark-text);
    margin-bottom: var(--spacing-sm);
}

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

.section-divider {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    margin: var(--spacing-sm) auto;
    border-radius: 2px;
}

/* ========================================
   NAVIGATION
   ======================================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all var(--transition-normal);
}

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

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

.nav__logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: 8px;
}

.nav__toggle-line {
    width: 24px;
    height: 2px;
    background: var(--dark-text);
    transition: all var(--transition-fast);
}

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

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

.nav__link {
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    position: relative;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transform: translateX(-50%);
    transition: width var(--transition-fast);
}

.nav__link:hover::after,
.nav__link.active::after {
    width: 80%;
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-weight: 600;
    border-radius: 50px;
    transition: all var(--transition-normal);
    text-align: center;
}

.btn--primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--light-text);
    box-shadow: var(--shadow-md);
}

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

.btn--secondary {
    background: transparent;
    color: var(--light-text);
    border: 2px solid var(--light-text);
}

.btn--secondary:hover {
    background: var(--light-text);
    color: var(--dark-text);
}

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

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero__background {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero__image-wrapper {
    width: 100%;
    height: 100%;
}

.hero__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    animation: zoomIn 20s ease-in-out infinite alternate;
}

@keyframes zoomIn {
    from { transform: scale(1); }
    to { transform: scale(1.1); }
}

.hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(0,0,0,0.5) 0%,
        rgba(0,0,0,0.6) 50%,
        rgba(0,0,0,0.7) 100%
    );
}

.hero__content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--light-text);
    animation: fadeInUp 1s ease-out;
}

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

.hero__title {
    font-family: var(--font-heading);
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.hero__subtitle {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    margin-bottom: var(--spacing-md);
    text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
}

.hero__rating {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    font-size: 1.25rem;
}

.rating-stars {
    color: var(--accent-color);
}

.star {
    font-size: 1.5rem;
}

.star.half::after {
    content: '★';
    position: absolute;
    width: 50%;
    overflow: hidden;
    color: var(--gray-400);
}

.rating-text {
    font-weight: 600;
}

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

/* ========================================
   ABOUT SECTION
   ======================================== */
.about__content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.about__text {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--gray-600);
    margin-bottom: var(--spacing-md);
}

.about__features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-sm);
}

.feature-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    background: var(--gray-100);
    border-radius: 12px;
    transition: all var(--transition-fast);
}

.feature-badge:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
}

.feature-icon {
    font-size: 1.5rem;
}

.feature-text {
    font-weight: 600;
    font-size: 0.875rem;
}

.about__stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
}

.stat-card {
    text-align: center;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--light-text);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 0.875rem;
    opacity: 0.9;
}

/* ========================================
   HIGHLIGHTS SECTION
   ======================================== */
.highlights {
    background: var(--gray-100);
}

.highlights__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.highlight-card {
    background: var(--light-bg);
    padding: var(--spacing-md);
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    text-align: center;
}

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

.highlight-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.highlight-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--dark-text);
}

.highlight-text {
    color: var(--gray-600);
    line-height: 1.6;
}

/* ========================================
   POPULAR ITEMS SECTION
   ======================================== */
.popular__tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
}

.tag {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--primary-light);
    color: var(--primary-dark);
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.875rem;
    transition: all var(--transition-fast);
}

.tag:hover {
    background: var(--primary-color);
    color: var(--light-text);
    transform: scale(1.05);
}

/* ========================================
   GALLERY SECTION
   ======================================== */
.gallery {
    background: var(--gray-100);
}

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

.filter-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--light-bg);
    border: 2px solid var(--gray-300);
    border-radius: 25px;
    font-weight: 600;
    transition: all var(--transition-fast);
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--primary-color);
    color: var(--light-text);
    border-color: var(--primary-color);
}

.gallery__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-sm);
}

.gallery__item {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    aspect-ratio: 4/3;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
}

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

.gallery__item:hover img {
    transform: scale(1.1);
}

.gallery__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    display: flex;
    align-items: flex-end;
    padding: var(--spacing-sm);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.gallery__item:hover .gallery__overlay {
    opacity: 1;
}

.gallery__caption {
    color: var(--light-text);
    font-weight: 600;
    font-size: 1.125rem;
}

/* ========================================
   REVIEWS SECTION
   ======================================== */
.reviews__summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.reviews__score {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--gray-100);
    border-radius: 16px;
}

.score-number {
    font-size: 4rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
}

.score-stars {
    color: var(--accent-color);
    font-size: 1.5rem;
    margin: var(--spacing-sm) 0;
}

.score-count {
    color: var(--gray-600);
}

.reviews__distribution {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    justify-content: center;
}

.distribution-bar {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.bar-label {
    width: 40px;
    font-weight: 600;
    color: var(--gray-600);
}

.bar-track {
    flex: 1;
    height: 8px;
    background: var(--gray-300);
    border-radius: 4px;
    overflow: hidden;
}

.bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-color), var(--accent-dark));
    transition: width var(--transition-slow);
}

.bar-count {
    width: 50px;
    text-align: right;
    color: var(--gray-600);
}

.reviews__slider {
    position: relative;
    padding: 0 60px;
}

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

.review-card {
    background: var(--light-bg);
    padding: var(--spacing-md);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

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

.review-rating {
    color: var(--accent-color);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.review-text {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--dark-text);
    margin-bottom: var(--spacing-sm);
}

.review-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.review-badges {
    display: flex;
    gap: var(--spacing-xs);
}

.badge {
    padding: 4px 8px;
    background: var(--accent-color);
    color: var(--dark-text);
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

.review-date {
    color: var(--gray-600);
    font-size: 0.875rem;
}

.review-context,
.review-details {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-xs);
}

.context-item,
.detail-item {
    padding: 4px 8px;
    background: var(--gray-100);
    border-radius: 4px;
    font-size: 0.75rem;
    color: var(--gray-600);
}

.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: var(--light-text);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-fast);
}

.slider-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-50%) scale(1.1);
}

.slider-btn--prev {
    left: 0;
}

.slider-btn--next {
    right: 0;
}

/* ========================================
   ORDER SECTION
   ======================================== */
.order {
    background: var(--gray-100);
}

.order__options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    max-width: 800px;
    margin: 0 auto;
}

.order-card {
    background: var(--light-bg);
    padding: var(--spacing-lg);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
    align-items: center;
}

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

.order-card__icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-sm);
}

.order-card__title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark-text);
    margin-bottom: var(--spacing-xs);
}

.order-card__text {
    color: var(--gray-600);
    margin-bottom: var(--spacing-md);
}

.order-card__btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--light-text);
    border-radius: 25px;
    font-weight: 600;
    transition: all var(--transition-fast);
}

.order-card:hover .order-card__btn {
    transform: scale(1.05);
}

/* ========================================
   CONTACT SECTION
   ======================================== */
.contact__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

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

.info-card {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--gray-100);
    border-radius: 12px;
    transition: all var(--transition-fast);
}

.info-card:hover {
    background: var(--primary-light);
    transform: translateX(5px);
}

.info-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.info-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.info-text {
    color: var(--gray-600);
    line-height: 1.6;
}

.info-text a {
    color: var(--primary-color);
    font-weight: 600;
}

.info-text a:hover {
    text-decoration: underline;
}

.hours-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.hours-row {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-sm);
}

.hours-day {
    font-weight: 600;
}

.hours-time {
    color: var(--gray-600);
}

.contact__map {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.map-container {
    width: 100%;
    height: 500px;
}

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

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

.footer__title {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.footer__text {
    color: var(--gray-400);
    margin-bottom: var(--spacing-sm);
}

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

.footer__subtitle {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.footer__list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer__list li {
    color: var(--gray-400);
}

.footer__link {
    color: var(--gray-400);
    transition: color var(--transition-fast);
}

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

.footer__bottom {
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--gray-800);
    text-align: center;
}

.footer__copyright {
    color: var(--gray-600);
    font-size: 0.875rem;
}

/* ========================================
   SCROLL TO TOP BUTTON
   ======================================== */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--light-text);
    border-radius: 50%;
    font-size: 1.5rem;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 999;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    background: var(--primary-dark);
    transform: translateY(-5px);
}

/* ========================================
   UTILITIES
   ======================================== */
.text-center {
    text-align: center;
}

.hidden {
    display: none !important;
}

/* ========================================
   ANIMATIONS
   ======================================== */
.fade-in {
    animation: fadeIn 0.6s ease-out;
}

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

.slide-in-left {
    animation: slideInLeft 0.6s ease-out;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-right {
    animation: slideInRight 0.6s ease-out;
}

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

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

/* Tablet */
@media (max-width: 1023px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }

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

    .map-container {
        height: 400px;
    }
}

/* Mobile */
@media (max-width: 767px) {
    :root {
        --spacing-md: 1.5rem;
        --spacing-lg: 2.5rem;
        --spacing-xl: 3rem;
    }

    .nav__toggle {
        display: flex;
    }

    .nav__menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--light-bg);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-md);
        transform: translateY(-120%);
        transition: transform var(--transition-normal);
    }

    .nav__menu.active {
        transform: translateY(0);
    }

    .nav__list {
        flex-direction: column;
        width: 100%;
    }

    .nav__link {
        padding: var(--spacing-sm);
        display: block;
    }

    .hero {
        min-height: 500px;
    }

    .hero__buttons {
        flex-direction: column;
    }

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

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

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

    .reviews__slider {
        padding: 0;
    }

    .slider-btn {
        display: none;
    }

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

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

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

/* Small mobile */
@media (max-width: 374px) {
    .section-title {
        font-size: 1.75rem;
    }

    .btn {
        padding: 0.75rem 1.5rem;
    }
}