/* ===================================
   CSS Variables
   =================================== */
:root {
    /* Colors - Japanese Sushi Theme */
    --color-primary: #c8102e;
    --color-primary-dark: #8b0e21;
    --color-primary-light: #ff6b85;
    --color-secondary: #1a1a1a;
    --color-accent: #ffd700;
    --color-text: #333;
    --color-text-light: #666;
    --color-bg: #ffffff;
    --color-bg-alt: #f8f8f8;
    --color-border: #e0e0e0;
    --color-success: #4caf50;
    --color-warning: #ff9800;
    --color-error: #f44336;

    /* Typography */
    --font-primary: 'Segoe UI', 'Roboto', sans-serif;
    --font-secondary: 'Georgia', serif;

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

    /* Container */
    --container-width: 1140px;
    --container-padding: 1.25rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.2);

    /* Transitions */
    --transition: all 0.3s ease;
    --transition-fast: all 0.15s ease;
}

/* ===================================
   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-primary);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    transition: var(--transition);
}

/* ===================================
   Utility Classes
   =================================== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

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

.section--alt {
    background-color: var(--color-bg-alt);
}

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

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

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-light);
}

/* ===================================
   Navigation
   =================================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(26, 26, 26, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: var(--transition);
}

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

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

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

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 0.375rem;
    width: 30px;
    height: 24px;
}

.nav__toggle-bar {
    width: 100%;
    height: 3px;
    background-color: var(--color-bg);
    border-radius: var(--radius-full);
    transition: var(--transition);
}

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

.nav__link {
    color: var(--color-bg);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
}

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

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

.nav__link--cta {
    background-color: var(--color-primary);
    color: var(--color-bg);
    padding: 0.625rem 1.5rem;
    border-radius: var(--radius-full);
}

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

.nav__link--cta::after {
    display: none;
}

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

.hero__background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

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

@keyframes kenburns {
    0% {
        transform: scale(1);
    }
    100% {
        transform: scale(1.1);
    }
}

.hero__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(200, 16, 46, 0.7) 0%, rgba(26, 26, 26, 0.8) 100%);
}

.hero__content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--color-bg);
}

.hero__title {
    font-family: var(--font-secondary);
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.5);
    animation: fadeInUp 1s ease-out;
}

.hero__subtitle {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    margin-bottom: var(--spacing-md);
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.5);
    animation: fadeInUp 1s ease-out 0.2s backwards;
}

.hero__rating {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 1s ease-out 0.4s backwards;
}

.rating-stars {
    display: flex;
    gap: 0.25rem;
}

.star {
    font-size: 1.5rem;
    color: var(--color-accent);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.star.filled {
    color: var(--color-accent);
}

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

.rating-text {
    font-size: 1.125rem;
    color: var(--color-bg);
}

.hero__buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out 0.6s backwards;
}

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

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    font-size: 1.125rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: var(--transition);
    text-align: center;
}

.btn--primary {
    background-color: var(--color-primary);
    color: var(--color-bg);
    box-shadow: var(--shadow-md);
}

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

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

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

/* ===================================
   About Section
   =================================== */
.about__description {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

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

.highlight {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--color-bg-alt);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

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

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

.highlight__title {
    font-family: var(--font-secondary);
    font-size: 1.5rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-xs);
}

.highlight__text {
    color: var(--color-text-light);
}

/* ===================================
   Features Section
   =================================== */
.features__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.feature-card {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.feature-card__icon {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-sm);
}

.feature-card__title {
    font-family: var(--font-secondary);
    font-size: 1.5rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
}

.feature-card__description {
    color: var(--color-text-light);
    line-height: 1.6;
}

/* ===================================
   Gallery Section
   =================================== */
.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(--radius-lg);
    aspect-ratio: 4/3;
    cursor: pointer;
}

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

.gallery__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(200, 16, 46, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

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

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

.gallery__button {
    background: var(--color-bg);
    color: var(--color-primary);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: var(--shadow-md);
}

.gallery__icon {
    font-size: 1.5rem;
}

/* ===================================
   Reviews Section
   =================================== */
.reviews__stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.reviews__summary {
    text-align: center;
}

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

.reviews__count {
    margin-top: var(--spacing-sm);
    color: var(--color-text-light);
}

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

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

.distribution-bar__label {
    min-width: 30px;
    color: var(--color-accent);
    font-weight: 600;
}

.distribution-bar__track {
    flex: 1;
    height: 8px;
    background: var(--color-border);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.distribution-bar__fill {
    height: 100%;
    background: var(--color-accent);
    transition: width 1s ease-out;
}

.distribution-bar__count {
    min-width: 30px;
    text-align: right;
    color: var(--color-text-light);
}

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

.review-card {
    background: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.review-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

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

.review-card__rating {
    display: flex;
    gap: 0.25rem;
}

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

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

.review-card__details {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
}

.review-detail {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.review-detail__label {
    font-weight: 600;
    color: var(--color-text);
}

.review-detail__stars {
    color: var(--color-accent);
}

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

.review-card__badge {
    padding: 0.25rem 0.75rem;
    background: var(--color-primary);
    color: var(--color-bg);
    font-size: 0.875rem;
    border-radius: var(--radius-full);
}

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

/* ===================================
   Contact Section
   =================================== */
.contact__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.info-card {
    background: var(--color-bg-alt);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition);
}

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

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

.info-card__title {
    font-family: var(--font-secondary);
    font-size: 1.5rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
}

.info-card__text {
    color: var(--color-text);
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
}

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

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

.hours-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.hours-list__item {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem;
    background: var(--color-bg);
    border-radius: var(--radius-sm);
}

.hours-list__day {
    font-weight: 600;
    color: var(--color-text);
}

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

.hours-list__time--closed {
    color: var(--color-error);
}

.contact__map {
    min-height: 400px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

/* ===================================
   Footer
   =================================== */
.footer {
    background-color: var(--color-secondary);
    color: var(--color-bg);
    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-secondary);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.footer__text {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

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

.footer__links,
.footer__contact,
.footer__hours {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer__link {
    color: rgba(255, 255, 255, 0.8);
}

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

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

.footer__copyright {
    color: rgba(255, 255, 255, 0.6);
}

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

.lightbox.active {
    display: flex;
}

.lightbox__close,
.lightbox__prev,
.lightbox__next {
    position: absolute;
    background: rgba(255, 255, 255, 0.2);
    color: var(--color-bg);
    border: none;
    font-size: 2rem;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
    backdrop-filter: blur(5px);
}

.lightbox__close:hover,
.lightbox__prev:hover,
.lightbox__next:hover {
    background: rgba(255, 255, 255, 0.4);
}

.lightbox__close {
    top: 2rem;
    right: 2rem;
}

.lightbox__prev {
    left: 2rem;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox__next {
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
}

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

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

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

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

.slide-in-up {
    animation: slideInUp 0.6s ease-out;
}

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

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 1023px) {
    .nav__toggle {
        display: flex;
    }

    .nav__menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(26, 26, 26, 0.98);
        flex-direction: column;
        padding: var(--spacing-lg);
        transition: var(--transition);
        overflow-y: auto;
    }

    .nav__menu.active {
        left: 0;
    }

    .nav__item {
        width: 100%;
        text-align: center;
    }

    .nav__link {
        display: block;
        padding: var(--spacing-sm);
        font-size: 1.25rem;
    }
}

@media (max-width: 767px) {
    .hero {
        min-height: 500px;
    }

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

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

    .hero__buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .features__grid,
    .gallery__grid,
    .reviews__grid,
    .contact__grid {
        grid-template-columns: 1fr;
    }

    .lightbox__close {
        top: 1rem;
        right: 1rem;
    }

    .lightbox__prev {
        left: 1rem;
    }

    .lightbox__next {
        right: 1rem;
    }
}

@media (min-width: 1440px) {
    :root {
        --container-width: 1320px;
    }
}

/* ===================================
   Accessibility
   =================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

*:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

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