/* ==========================================================================
   Hudik Sushi - Stylesheet
   Modern, SEO-optimized sushi restaurant website
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Variables
   -------------------------------------------------------------------------- */
:root {
    /* Colors */
    --color-primary: #c41e3a;
    --color-primary-dark: #a01830;
    --color-secondary: #1a1a2e;
    --color-accent: #f4a460;
    --color-gold: #d4af37;

    --color-text: #333333;
    --color-text-light: #666666;
    --color-text-muted: #888888;

    --color-bg: #ffffff;
    --color-bg-alt: #f8f8f8;
    --color-bg-dark: #1a1a2e;

    --color-border: #e0e0e0;

    /* Typography */
    --font-primary: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;

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

    /* Sizing */
    --container-max: 1200px;
    --header-height: 80px;

    /* Effects */
    --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);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --transition: 0.3s ease;
}

/* --------------------------------------------------------------------------
   Reset & Base
   -------------------------------------------------------------------------- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}

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

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

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

ul {
    list-style: none;
}

address {
    font-style: normal;
}

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

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

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 2.5rem);
    font-weight: 700;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-light);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 500;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

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

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

.btn--secondary {
    background-color: transparent;
    color: white;
    border: 2px solid white;
}

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

.btn--large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* --------------------------------------------------------------------------
   Header / Navigation
   -------------------------------------------------------------------------- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all var(--transition);
}

.header--scrolled {
    height: 70px;
    box-shadow: var(--shadow-md);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

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

.nav__logo-img {
    height: 50px;
    width: auto;
}

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

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

.nav__link {
    font-weight: 500;
    color: var(--color-secondary);
    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: width var(--transition);
}

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

.nav__cta {
    margin-left: var(--spacing-lg);
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav__toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--color-secondary);
    transition: all var(--transition);
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .nav__menu {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background-color: white;
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-md);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition);
    }

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

    .nav__list {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-md);
    }

    .nav__cta {
        display: none;
    }

    .nav__toggle {
        display: flex;
    }

    .nav__toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

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

    .nav__toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--color-secondary) 0%, #2d2d44 100%);
    background-image: url('../images/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    margin-top: var(--header-height);
}

.hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(26, 26, 46, 0.85) 0%, rgba(45, 45, 68, 0.75) 100%);
}

.hero__content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: white;
    padding: var(--spacing-2xl) 0;
}

.hero__title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero__subtitle {
    font-size: clamp(1rem, 3vw, 1.25rem);
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
    opacity: 0.9;
}

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

/* --------------------------------------------------------------------------
   Features Section
   -------------------------------------------------------------------------- */
.features {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-bg-alt);
}

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

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

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

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

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

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

/* --------------------------------------------------------------------------
   Menu Section
   -------------------------------------------------------------------------- */
.menu {
    padding: var(--spacing-2xl) 0;
}

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

.menu__search {
    position: relative;
    max-width: 500px;
    margin: 0 auto var(--spacing-lg);
}

.menu__search-input {
    width: 100%;
    padding: 1rem 1rem 1rem 3rem;
    font-size: 1rem;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
}

.menu__search-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(196, 30, 58, 0.1);
}

.menu__search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    color: var(--color-text-muted);
}

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

.menu__filter {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: 50px;
    cursor: pointer;
    transition: all var(--transition);
}

.menu__filter:hover {
    background-color: var(--color-border);
}

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

.menu__results-info {
    text-align: center;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
    min-height: 1.5em;
}

.menu__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

/* Menu Item Card */
.menu-item {
    background-color: white;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    overflow: hidden;
    transition: all var(--transition);
}

.menu-item:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.menu-item.hidden {
    display: none;
}

.menu-item__content {
    padding: var(--spacing-md);
}

.menu-item__header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
}

.menu-item__title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-secondary);
}

.menu-item__price {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-primary);
    white-space: nowrap;
}

.menu-item__description {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
}

.menu-item__tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

/* Tags */
.tag {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 500;
    background-color: var(--color-bg-alt);
    color: var(--color-text-light);
    border-radius: var(--radius-sm);
}

.tag--green {
    background-color: #e8f5e9;
    color: #2e7d32;
}

.tag--red {
    background-color: #ffebee;
    color: #c62828;
}

.tag--blue {
    background-color: #e3f2fd;
    color: #1565c0;
}

.tag--orange {
    background-color: #fff3e0;
    color: #ef6c00;
}

.tag--gold {
    background-color: #fff8e1;
    color: #f57f17;
}

.menu__note {
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-top: var(--spacing-xl);
}

/* --------------------------------------------------------------------------
   About Section
   -------------------------------------------------------------------------- */
.about {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-bg-alt);
}

.about__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.about__content {
    padding-right: var(--spacing-lg);
}

.about__content .section-title {
    text-align: left;
    margin-bottom: var(--spacing-lg);
}

.about__content p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-light);
}

.about__image img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

@media (max-width: 768px) {
    .about__grid {
        grid-template-columns: 1fr;
    }

    .about__content {
        padding-right: 0;
        order: 2;
    }

    .about__image {
        order: 1;
    }
}

/* --------------------------------------------------------------------------
   Contact Section
   -------------------------------------------------------------------------- */
.contact {
    padding: var(--spacing-2xl) 0;
}

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

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

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

.contact__icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.contact__item h3 {
    font-size: 1rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-xs);
}

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

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

.opening-hours {
    border-collapse: collapse;
}

.opening-hours td {
    padding: 0.25rem 0;
    color: var(--color-text-light);
}

.opening-hours td:first-child {
    padding-right: var(--spacing-md);
}

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

.contact__map iframe {
    display: block;
}

.contact__cta {
    text-align: center;
    margin-top: var(--spacing-xl);
}

@media (max-width: 768px) {
    .contact__grid {
        grid-template-columns: 1fr;
    }
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
    background-color: var(--color-bg-dark);
    color: white;
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer__logo {
    height: 60px;
    width: auto;
    margin-bottom: var(--spacing-md);
}

.footer__brand p {
    color: rgba(255, 255, 255, 0.7);
    max-width: 300px;
}

.footer h4 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
}

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

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

.footer__links a:hover,
.footer__contact a:hover {
    color: white;
}

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

.footer__bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .footer__grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer__brand p {
        max-width: 100%;
    }
}

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

.menu-item {
    animation: fadeIn 0.4s ease forwards;
}

/* --------------------------------------------------------------------------
   Print Styles
   -------------------------------------------------------------------------- */
@media print {
    .header,
    .hero,
    .features,
    .contact__map,
    .footer,
    .btn {
        display: none !important;
    }

    .menu {
        padding: 0;
    }

    .menu-item {
        break-inside: avoid;
        page-break-inside: avoid;
    }
}