/* ========================================
   CSS VARIABLES
   ======================================== */
:root {
    /* Colors - Japanese/Sushi Theme */
    --color-primary: #c41e3a;
    --color-primary-dark: #9a1729;
    --color-primary-light: #e85d72;
    --color-secondary: #2c3e50;
    --color-accent: #f39c12;
    --color-background: #ffffff;
    --color-surface: #f8f9fa;
    --color-text-primary: #2c3e50;
    --color-text-secondary: #6c757d;
    --color-text-light: #adb5bd;
    --color-border: #dee2e6;
    --color-success: #28a745;
    --color-overlay: rgba(0, 0, 0, 0.6);

    /* Typography */
    --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-heading: Georgia, 'Times New Roman', serif;
    --font-size-base: 16px;
    --font-size-sm: 0.875rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.5rem;
    --line-height-base: 1.6;
    --line-height-heading: 1.2;

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

    /* Layout */
    --container-max-width: 1140px;
    --section-padding: 5rem 0;

    /* Effects */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --border-radius: 8px;
}

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

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

body {
    font-family: var(--font-primary);
    font-size: 1rem;
    line-height: var(--line-height-base);
    color: var(--color-text-primary);
    background-color: var(--color-background);
    overflow-x: hidden;
}

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

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

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

ul {
    list-style: none;
}

/* ========================================
   UTILITY CLASSES
   ======================================== */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--section-padding);
}

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

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: var(--line-height-heading);
}

.section-divider {
    width: 80px;
    height: 4px;
    background: linear-gradient(to right, var(--color-primary), var(--color-accent));
    margin: 0 auto var(--spacing-md);
    border-radius: 2px;
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border-radius: var(--border-radius);
    transition: all var(--transition-base);
    cursor: pointer;
    border: 2px solid transparent;
}

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

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

.btn--secondary {
    background-color: transparent;
    color: white;
    border-color: white;
}

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

/* ========================================
   NAVIGATION
   ======================================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all var(--transition-base);
}

.nav.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-md);
}

.nav__container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem var(--spacing-md);
}

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

.nav__toggle {
    display: none;
    flex-direction: column;
    width: 30px;
    height: 24px;
    cursor: pointer;
}

.nav__hamburger,
.nav__hamburger::before,
.nav__hamburger::after {
    width: 100%;
    height: 3px;
    background-color: var(--color-secondary);
    transition: all var(--transition-base);
}

.nav__hamburger {
    position: relative;
}

.nav__hamburger::before,
.nav__hamburger::after {
    content: '';
    position: absolute;
    left: 0;
}

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

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

.nav__menu {
    display: flex;
    gap: var(--spacing-lg);
}

.nav__link {
    font-weight: 500;
    color: var(--color-text-primary);
    transition: color var(--transition-base);
    position: relative;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width var(--transition-base);
}

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

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

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: 80px;
}

.hero__background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
}

.hero__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(196, 30, 58, 0.7), rgba(44, 62, 80, 0.6));
    z-index: -1;
}

.hero__content {
    text-align: center;
    color: white;
    z-index: 1;
    animation: fadeInUp 1s ease;
}

.hero__title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    line-height: 1.1;
}

.hero__subtitle {
    font-size: clamp(1.25rem, 3vw, 2rem);
    margin-bottom: var(--spacing-lg);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

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

.rating {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background-color: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
}

.rating__stars {
    color: #ffd700;
    font-size: 1.5rem;
    letter-spacing: 2px;
}

.rating__score {
    font-size: 1.25rem;
    font-weight: 700;
}

.rating__count {
    font-size: 0.9rem;
    opacity: 0.9;
}

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

.hero__scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    font-size: 2rem;
    animation: bounce 2s infinite;
}

/* ========================================
   ABOUT SECTION
   ======================================== */
.about {
    background-color: var(--color-background);
}

.about__content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

.about__description {
    font-size: var(--font-size-lg);
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

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

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

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

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

.feature__title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
}

.feature__text {
    color: var(--color-text-secondary);
}

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

.info-card {
    background-color: var(--color-surface);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--color-primary);
}

.info-card__title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-md);
}

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

.info-card__item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text-secondary);
}

.info-card__icon {
    color: var(--color-success);
    font-weight: 700;
}

.info-card__price {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-primary);
}

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

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

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

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

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

.gallery__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(196, 30, 58, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

.gallery__button {
    padding: 0.75rem 1.5rem;
    background-color: white;
    color: var(--color-primary);
    font-weight: 600;
    border-radius: var(--border-radius);
    transition: all var(--transition-base);
}

.gallery__button:hover {
    transform: scale(1.05);
}

/* ========================================
   REVIEWS SECTION
   ======================================== */
.reviews {
    background-color: var(--color-background);
}

.reviews__summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-xl);
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
}

.reviews__rating {
    text-align: center;
}

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

.reviews__stars {
    color: #ffd700;
    font-size: 2rem;
    margin: var(--spacing-sm) 0;
    letter-spacing: 4px;
}

.reviews__count {
    color: var(--color-text-secondary);
    font-size: 1rem;
}

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

.rating-bar {
    display: grid;
    grid-template-columns: 80px 1fr 40px;
    align-items: center;
    gap: var(--spacing-sm);
}

.rating-bar__label {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.rating-bar__track {
    height: 8px;
    background-color: var(--color-border);
    border-radius: 4px;
    overflow: hidden;
}

.rating-bar__fill {
    height: 100%;
    background: linear-gradient(to right, var(--color-primary), var(--color-accent));
    transition: width var(--transition-slow);
}

.rating-bar__count {
    text-align: right;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.reviews__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.review-card {
    background-color: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.review-card__header {
    margin-bottom: var(--spacing-md);
}

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

.review-card__stars {
    color: #ffd700;
    font-size: 1.25rem;
    letter-spacing: 2px;
}

.review-card__date {
    color: var(--color-text-light);
    font-size: 0.875rem;
}

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

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

.review-card__service,
.review-card__meal,
.review-card__price {
    padding: 0.25rem 0.75rem;
    background-color: var(--color-surface);
    border-radius: 12px;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.review-card__detailed {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.review-card__detail {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.review-card__detail-label {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.review-card__detail-rating {
    color: #ffd700;
    font-size: 1rem;
}

.review-card__images {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.review-card__image {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: var(--border-radius);
}

/* ========================================
   CONTACT SECTION
   ======================================== */
.contact {
    background-color: var(--color-surface);
}

.contact__content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

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

.contact__card {
    background-color: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.contact__card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-primary);
}

.contact__card-text {
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.contact__link {
    display: inline-flex;
    align-items: center;
    color: var(--color-primary);
    font-weight: 600;
    transition: color var(--transition-base);
}

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

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

.hours-list__item {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--color-border);
}

.hours-list__item--special {
    color: var(--color-primary);
    font-weight: 600;
}

.hours-list__day {
    font-weight: 500;
}

.hours-list__time {
    color: var(--color-text-secondary);
}

.contact__map {
    width: 100%;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.contact__map-iframe {
    width: 100%;
    min-height: 450px;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background-color: var(--color-secondary);
    color: white;
    padding: var(--spacing-2xl) 0 var(--spacing-md);
}

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

.footer__title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.footer__description {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-md);
}

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

.footer__stars {
    color: #ffd700;
    font-size: 1.25rem;
    letter-spacing: 2px;
}

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

.footer__section-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

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

.footer__link {
    color: rgba(255, 255, 255, 0.8);
    transition: color var(--transition-base);
}

.footer__link:hover {
    color: white;
}

.footer__address {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
}

.footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    margin-top: var(--spacing-xl);
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer__copyright,
.footer__info {
    font-size: 0.875rem;
}

/* ========================================
   LIGHTBOX
   ======================================== */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.lightbox.active {
    display: flex;
    opacity: 1;
}

.lightbox__content {
    max-width: 90%;
    max-height: 90%;
    position: relative;
}

.lightbox__image {
    max-width: 100%;
    max-height: 90vh;
    border-radius: var(--border-radius);
}

.lightbox__close,
.lightbox__prev,
.lightbox__next {
    position: absolute;
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    font-size: 2rem;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--transition-base);
    cursor: pointer;
}

.lightbox__close {
    top: 20px;
    right: 20px;
}

.lightbox__prev {
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox__next {
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox__close:hover,
.lightbox__prev:hover,
.lightbox__next:hover {
    background-color: rgba(255, 255, 255, 0.3);
}

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

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

.fade-in {
    animation: fadeInUp 0.8s ease;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 1024px) {
    :root {
        --section-padding: 4rem 0;
    }

    .hero__title {
        font-size: 3rem;
    }

    .hero__subtitle {
        font-size: 1.5rem;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 3rem 0;
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
    }

    .nav__toggle {
        display: flex;
    }

    .nav__menu {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: white;
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-md);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
    }

    .nav__menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav__item {
        padding: var(--spacing-sm) 0;
        border-bottom: 1px solid var(--color-border);
    }

    .nav__item:last-child {
        border-bottom: none;
    }

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

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

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

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

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

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

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

    .footer__bottom {
        flex-direction: column;
        text-align: center;
    }

    .lightbox__prev,
    .lightbox__next {
        width: 40px;
        height: 40px;
        font-size: 1.5rem;
    }

    .lightbox__prev {
        left: 10px;
    }

    .lightbox__next {
        right: 10px;
    }

    .lightbox__close {
        top: 10px;
        right: 10px;
        width: 40px;
        height: 40px;
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-base: 14px;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    .section {
        padding: 2rem 0;
    }

    .hero {
        min-height: 80vh;
    }

    .section-title {
        font-size: 2rem;
    }

    .reviews__score {
        font-size: 3rem;
    }

    .reviews__stars {
        font-size: 1.5rem;
    }
}