/* SUSHI ZEN - Authentic Japanese Restaurant */

:root {
    --primary: #c1272d;
    --secondary: #1a1a1a;
    --accent: #d4af37;
    --white: #ffffff;
    --cream: #f9f7f4;
    --gray: #666666;
    --gray-light: #e8e8e8;
}

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

body {
    font-family: 'Montserrat', sans-serif;
    background-color: var(--white);
    color: var(--secondary);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: 'Noto Serif JP', serif;
    font-weight: 600;
    line-height: 1.2;
}

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

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    padding: 20px 0;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0,0,0,0.08);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    font-size: 32px;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-main {
    font-family: 'Noto Serif JP', serif;
    font-size: 20px;
    font-weight: 700;
    color: var(--secondary);
    letter-spacing: 3px;
}

.logo-sub {
    font-size: 11px;
    color: var(--primary);
    letter-spacing: 2px;
    margin-top: -3px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--secondary);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 1px;
    transition: color 0.3s ease;
}

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

.reserve-btn {
    background: var(--primary);
    color: var(--white);
    border: none;
    padding: 12px 28px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.reserve-btn:hover {
    background: #a01f24;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(193, 39, 45, 0.3);
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.mobile-toggle span {
    width: 25px;
    height: 3px;
    background: var(--secondary);
}

/* Hero Section */
.hero {
    margin-top: 80px;
    height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.hero-background img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26, 26, 26, 0.85) 0%, rgba(193, 39, 45, 0.3) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--white);
}

.hero-badge {
    display: inline-block;
    border: 2px solid var(--accent);
    color: var(--accent);
    padding: 10px 30px;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 4px;
    margin-bottom: 30px;
}

.hero-title {
    font-size: 72px;
    margin-bottom: 25px;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 18px;
    margin-bottom: 40px;
    color: var(--cream);
    font-weight: 300;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.btn {
    padding: 16px 40px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

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

.btn-primary:hover {
    background: #a01f24;
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(193, 39, 45, 0.4);
}

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

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

/* About Section */
.about {
    padding: 120px 0;
    background: var(--cream);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-image img {
    width: 100%;
    height: 600px;
    object-fit: cover;
}

.section-badge {
    display: inline-block;
    color: var(--primary);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.section-title {
    font-size: 48px;
    margin-bottom: 30px;
}

.about-content p {
    font-size: 16px;
    color: var(--gray);
    margin-bottom: 25px;
    line-height: 1.8;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.feature {
    text-align: center;
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 15px;
    display: block;
}

.feature h4 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--secondary);
}

.feature p {
    font-size: 14px;
    color: var(--gray);
}

/* Section Header */
.section-header {
    text-align: center;
    margin-bottom: 70px;
}

.section-description {
    font-size: 16px;
    color: var(--gray);
    max-width: 600px;
    margin: 20px auto 0;
}

/* Menu Section */
.menu {
    padding: 120px 0;
}

.menu-filters {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 60px;
}

.filter-btn {
    background: transparent;
    color: var(--secondary);
    border: 2px solid var(--gray-light);
    padding: 12px 30px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.menu-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.menu-item {
    background: var(--white);
    border: 2px solid var(--gray-light);
    overflow: hidden;
    transition: all 0.3s ease;
    position: relative;
}

.menu-item:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.menu-item.featured {
    border-color: var(--accent);
}

.featured-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--accent);
    color: var(--white);
    padding: 8px 20px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    z-index: 1;
}

.menu-item-image {
    height: 250px;
    overflow: hidden;
}

.menu-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.menu-item:hover .menu-item-image img {
    transform: scale(1.1);
}

.menu-item-content {
    padding: 30px;
}

.menu-item-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 15px;
}

.menu-item-content h3 {
    font-size: 22px;
    color: var(--secondary);
}

.price {
    font-family: 'Noto Serif JP', serif;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
}

.menu-item-content p {
    font-size: 14px;
    color: var(--gray);
    margin-bottom: 20px;
}

.add-cart-btn {
    width: 100%;
    background: var(--secondary);
    color: var(--white);
    border: none;
    padding: 12px 25px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.3s ease;
}

.add-cart-btn:hover {
    background: var(--primary);
}

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

/* Gallery Section */
.gallery {
    padding: 120px 0;
    background: var(--cream);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.gallery-item {
    height: 350px;
    overflow: hidden;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

/* Reservation Section */
.reservation {
    padding: 120px 0;
    background: var(--secondary);
    color: var(--white);
    text-align: center;
}

.reservation .section-badge {
    color: var(--accent);
}

.reservation .section-title {
    color: var(--white);
}

.reservation-content > p {
    font-size: 18px;
    margin-bottom: 50px;
    color: var(--cream);
}

.reservation-info {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-bottom: 50px;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 15px;
    text-align: left;
}

.info-icon {
    font-size: 40px;
}

.info-item h4 {
    font-size: 18px;
    margin-bottom: 5px;
    color: var(--accent);
}

.info-item p {
    font-size: 15px;
    color: var(--cream);
}

.btn-large {
    padding: 20px 50px;
    font-size: 14px;
}

/* Footer */
.footer {
    background: var(--secondary);
    color: var(--white);
    padding: 60px 0;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.footer p {
    color: var(--gray);
    font-size: 13px;
}

/* Modal */
.modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    background: var(--white);
    padding: 50px;
    z-index: 2000;
    max-width: 500px;
    width: 90%;
    transition: transform 0.3s ease;
}

.modal.active {
    transform: translate(-50%, -50%) scale(1);
}

.close-modal {
    position: absolute;
    top: 20px;
    right: 25px;
    font-size: 36px;
    cursor: pointer;
    color: var(--gray);
    line-height: 1;
}

.modal h2 {
    font-size: 32px;
    margin-bottom: 30px;
    text-align: center;
}

.modal input,
.modal select,
.modal textarea {
    width: 100%;
    padding: 15px 20px;
    margin-bottom: 20px;
    border: 2px solid var(--gray-light);
    font-size: 15px;
    font-family: 'Montserrat', sans-serif;
}

.btn-full {
    width: 100%;
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.85);
    z-index: 1500;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Cart Sidebar */
.cart-sidebar {
    position: fixed;
    right: -400px;
    top: 0;
    width: 400px;
    height: 100vh;
    background: var(--white);
    box-shadow: -5px 0 30px rgba(0,0,0,0.2);
    z-index: 1500;
    display: flex;
    flex-direction: column;
    transition: right 0.3s ease;
}

.cart-sidebar.active {
    right: 0;
}

.cart-header {
    padding: 30px;
    border-bottom: 2px solid var(--gray-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.cart-header h3 {
    font-size: 24px;
}

.close-cart {
    background: none;
    border: none;
    font-size: 32px;
    cursor: pointer;
    color: var(--gray);
}

.cart-items {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
}

.empty-cart {
    text-align: center;
    color: var(--gray);
    padding: 40px 20px;
}

.cart-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
    border-bottom: 1px solid var(--gray-light);
}

.cart-item-info h4 {
    font-size: 16px;
    margin-bottom: 5px;
}

.cart-item-info p {
    font-size: 14px;
    color: var(--primary);
    font-weight: 700;
}

.remove-item {
    background: none;
    border: none;
    color: var(--primary);
    font-size: 20px;
    cursor: pointer;
}

.cart-footer {
    padding: 30px;
    border-top: 2px solid var(--gray-light);
}

.cart-total {
    display: flex;
    justify-content: space-between;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 20px;
}

.cart-toggle {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--primary);
    color: var(--white);
    border: none;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 5px 20px rgba(193, 39, 45, 0.4);
    z-index: 1000;
    transition: all 0.3s ease;
}

.cart-toggle:hover {
    transform: scale(1.1);
}

.cart-count {
    position: absolute;
    top: -5px;
    right: -5px;
    background: var(--accent);
    color: var(--white);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 56px;
    }

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

    .menu-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .reservation-info {
        flex-direction: column;
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .mobile-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 42px;
    }

    .section-title {
        font-size: 36px;
    }

    .menu-grid,
    .gallery-grid,
    .about-features {
        grid-template-columns: 1fr;
    }

    .cart-sidebar {
        width: 100%;
        right: -100%;
    }
}