:root {
    --bg-color: #000000;
    --card-bg: rgba(20, 20, 20, 0.85); /* Slightly more solid than before */
    --accent-color: #D32F2F; /* Vibrant Red from PDF */
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --glass-border: rgba(211, 47, 47, 0.2);
    --nav-bg: rgba(0, 0, 0, 0.95);
    --font-main: 'Outfit', sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    background-color: var(--bg-color);
    /* Japanese Seigaiha Wave Pattern as CSS Background */
    background-image: 
        radial-gradient(circle at 100% 150%, var(--bg-color) 24%, var(--accent-color) 25%, var(--accent-color) 28%, var(--bg-color) 29%, var(--bg-color) 36%, var(--accent-color) 36%, var(--accent-color) 40%, transparent 40%),
        radial-gradient(circle at 0 150%, var(--bg-color) 24%, var(--accent-color) 25%, var(--accent-color) 28%, var(--bg-color) 29%, var(--bg-color) 36%, var(--accent-color) 36%, var(--accent-color) 40%, transparent 40%),
        radial-gradient(circle at 50% 100%, var(--bg-color) 10%, var(--accent-color) 11%, var(--accent-color) 14%, var(--bg-color) 15%, var(--bg-color) 21%, var(--accent-color) 21%, var(--accent-color) 25%, transparent 25%),
        radial-gradient(circle at 100% 50%, var(--bg-color) 24%, var(--accent-color) 25%, var(--accent-color) 28%, var(--bg-color) 29%, var(--bg-color) 36%, var(--accent-color) 36%, var(--accent-color) 40%, transparent 40%),
        radial-gradient(circle at 0 50%, var(--bg-color) 24%, var(--accent-color) 25%, var(--accent-color) 28%, var(--bg-color) 29%, var(--bg-color) 36%, var(--accent-color) 36%, var(--accent-color) 40%, transparent 40%);
    background-size: 80px 40px;
    background-attachment: fixed;
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Semi-transparent overlay to keep pattern subtle */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85); /* Control pattern intensity */
    z-index: -1;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    padding: 80px 20px;
    background: linear-gradient(to bottom, rgba(211, 47, 47, 0.15), transparent);
}

.logo-container h1 {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -2px;
    margin-bottom: 15px;
    color: #fff;
    text-transform: uppercase;
    position: relative;
    display: inline-block;
}

.logo-container h1::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 20%;
    right: 20%;
    height: 4px;
    background: var(--accent-color);
}

.logo-container p {
    color: var(--text-secondary);
    font-size: 1.2rem;
    margin-top: 15px;
    letter-spacing: 2px;
}

/* Tabs Navigation */
.nav-sticky {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--nav-bg);
    backdrop-filter: blur(15px);
    border-bottom: 2px solid var(--accent-color);
    margin-bottom: 50px;
}

.tabs-container {
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
    position: relative;
    mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
    -webkit-mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
}

.tabs-container::-webkit-scrollbar {
    display: none;
}

.nav-flex {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1001;
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--accent-color);
    border-radius: 2px;
    transition: var(--transition);
}

.mobile-logo-small {
    display: none;
    font-weight: 800;
    color: #fff;
    font-size: 1.25rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Mobile Drawer */
.mobile-drawer {
    position: fixed;
    top: 0;
    left: -300px;
    width: 300px;
    height: 100vh;
    background: #0a0a0a;
    z-index: 2000;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    border-right: 1px solid var(--glass-border);
    padding: 40px 20px;
    box-shadow: 20px 0 50px rgba(0,0,0,0.8);
}

.mobile-drawer.open {
    transform: translateX(300px);
}

.drawer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.drawer-header h3 {
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.close-drawer {
    background: none;
    border: none;
    color: #fff;
    font-size: 2rem;
    cursor: pointer;
}

.drawer-item {
    display: block;
    width: 100%;
    background: none;
    border: none;
    color: var(--text-secondary);
    text-align: left;
    padding: 15px 0;
    font-size: 1.1rem;
    font-weight: 600;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    cursor: pointer;
    transition: var(--transition);
}

.drawer-item.active {
    color: var(--accent-color);
    padding-left: 10px;
}

.drawer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.8);
    backdrop-filter: blur(5px);
    z-index: 1999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.drawer-overlay.open {
    opacity: 1;
    visibility: visible;
}

@media (max-width: 820px) {
    .menu-toggle { display: flex; }
    .desktop-tabs { display: none; }
    .mobile-logo-small { display: block; }
    .nav-flex { justify-content: space-between; }
}

.tabs-wrapper {
    display: flex;
    white-space: nowrap;
    padding: 20px 0;
    justify-content: flex-start; /* Better for scrolling */
    min-width: max-content;
}

.tab-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    padding: 10px 20px; /* Reduced from 25px */
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.tab-btn.active {
    color: #fff;
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 20px;
    right: 20px;
    height: 3px;
    background-color: var(--accent-color);
}

/* Menu Content */
#menu-content {
    min-height: 500px;
    animation: slideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.category-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 40px;
}

.category-kanji {
    background: var(--accent-color);
    color: #fff;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
}

.category-title {
    font-size: 2.5rem;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.items-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}

.menu-item {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.menu-item:hover {
    transform: translateY(-8px);
    border-color: var(--accent-color);
    box-shadow: 0 15px 40px rgba(211, 47, 47, 0.2);
    background: rgba(30,30,30, 0.95);
}

.item-img-container {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    border: 4px solid var(--accent-color);
    margin-bottom: 25px;
    overflow: hidden;
    background: #111;
}

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

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

.item-name {
    font-size: 1.4rem;
    font-weight: 800;
    margin-bottom: 12px;
    color: #fff;
}

.item-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 25px;
    line-height: 1.5;
}

.item-price {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--accent-color);
    padding: 8px 20px;
    border: 2px solid var(--accent-color);
    border-radius: 30px;
    background: rgba(211, 47, 47, 0.1);
}

/* Footer & Extras */
footer {
    margin-top: 100px;
    padding: 80px 20px;
    text-align: center;
    background: #050505;
    border-top: 1px solid var(--glass-border);
    color: var(--text-secondary);
}

.social-links {
    margin: 30px 0;
    font-size: 1.5rem;
    color: var(--accent-color);
    font-weight: 800;
}

/* Responsive */
@media (max-width: 768px) {
    .logo-container h1 { font-size: 2.4rem; padding: 0 10px; }
    .tabs-wrapper { justify-content: flex-start; padding-left: 20px; padding-right: 20px; }
    .category-title { font-size: 1.8rem; }
    .category-header { gap: 15px; margin-bottom: 30px; }
    .category-kanji { width: 50px; height: 50px; font-size: 1.2rem; }
}

@media (max-width: 480px) {
    .container { padding: 15px; }
    .menu-item { padding: 25px 15px; }
    .item-img-container { width: 120px; height: 120px; }
    .item-name { font-size: 1.2rem; }
    .item-price { font-size: 1.2rem; }
    .logo-container h1 { font-size: 2rem; }
}