/* Base Styles */
:root {
    --stone-50: #f8f8f7;
    --stone-100: #f1f1ef;
    --stone-200: #e7e7e4;
    --stone-500: #73736d;
    --stone-600: #575752;
    --stone-800: #292927;
    --stone-900: #1c1c1a;
    --serif: "Noto Serif JP", serif;
    --sans: "Montserrat", "Helvetica Neue", Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: var(--sans); color: var(--stone-800); background: #fff; line-height: 1.8; overflow-x: hidden; }
.font-serif { font-family: var(--serif); }

/* Navigation */
nav {
    position: fixed; top: 0; width: 100%; height: 80px;
    background: rgba(255, 255, 255, 0.95); backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--stone-200); z-index: 1000;
}
.nav-container {
    max-width: 1200px; margin: 0 auto; height: 100%;
    display: flex; justify-content: space-between; align-items: center; padding: 0 24px;
}
.logo { text-align: center; text-decoration: none; color: inherit; }
.logo h1 { font-size: 24px; letter-spacing: 0.2em; font-family: var(--serif); }
.logo span { font-size: 10px; letter-spacing: 0.2em; color: var(--stone-500); text-transform: uppercase; }

.nav-links { display: flex; gap: 40px; }
.nav-links a {
    text-decoration: none; color: var(--stone-600); font-size: 12px;
    letter-spacing: 0.15em; font-weight: 500; transition: 0.3s;
}
.nav-links a.active { color: var(--stone-900); border-bottom: 1px solid var(--stone-900); }
.nav-links a:hover { color: var(--stone-900); }

.mobile-toggle { display: none; background: none; border: none; cursor: pointer; }

/* Mobile Menu */
#mobile-menu {
    display: none; position: absolute; top: 80px; left: 0; width: 100%;
    background: white; border-bottom: 1px solid var(--stone-200);
    padding: 32px 24px; flex-direction: column; gap: 24px; text-align: center;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}
#mobile-menu.active { display: flex; }
#mobile-menu a { text-decoration: none; color: var(--stone-800); letter-spacing: 0.2em; font-size: 14px; }

/* Sections */
section { padding: 100px 24px; max-width: 1200px; margin: 0 auto; }
.sec-title { text-align: center; margin-bottom: 80px; }
.sec-title h3 { font-size: 32px; font-family: var(--serif); margin-bottom: 12px; }
.sec-title p { font-size: 10px; letter-spacing: 0.2em; color: var(--stone-500); text-transform: uppercase; }

/* Hero */
.hero {
    height: 100vh; position: relative; display: flex; align-items: center; justify-content: center;
    color: white; text-align: center; overflow: hidden;
}
.hero-img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; z-index: -1; }
.hero-overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.4); z-index: -1; }
.hero h2 { font-size: 48px; font-family: var(--serif); letter-spacing: 0.2em; margin-bottom: 40px; }
.btn-outline {
    border: 1px solid rgba(255,255,255,0.4); background: none; color: white;
    padding: 16px 48px; font-size: 10px; letter-spacing: 0.3em; text-transform: uppercase;
    text-decoration: none; transition: 0.5s;
}
.btn-outline:hover { background: white; color: var(--stone-900); }

/* Grid */
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 48px; }
.card { cursor: pointer; text-decoration: none; color: inherit; }
.card-img { aspect-ratio: 4/5; overflow: hidden; margin-bottom: 24px; background: var(--stone-100); }
.card-img img { width: 100%; height: 100%; object-fit: cover; transition: 1s; }
.card:hover img { transform: scale(1.1); }
.card h4 { font-family: var(--serif); font-size: 18px; margin-bottom: 4px; }
.card p { color: var(--stone-500); font-size: 14px; font-weight: 300; }

/* Info */
.bg-stone { background: var(--stone-50); max-width: 100%; }
.info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.info-item { display: flex; gap: 24px; padding-bottom: 24px; border-bottom: 1px solid var(--stone-200); margin-bottom: 24px; }
.info-item svg { color: var(--stone-500); flex-shrink: 0; }
.info-label { font-size: 10px; font-weight: bold; letter-spacing: 0.2em; margin-bottom: 8px; color: var(--stone-800); }
.info-value { font-size: 14px; color: var(--stone-600); }

/* Menu Page */
.menu-header { padding-top: 160px; text-align: center; margin-bottom: 80px; }
.menu-section { margin-bottom: 100px; }
.menu-category { display: flex; align-items: center; gap: 16px; margin-bottom: 40px; }
.menu-category div { height: 1px; background: var(--stone-800); flex: 1; }
.menu-category h3 { font-family: var(--serif); font-style: italic; font-size: 20px; }

.menu-row { display: flex; justify-content: space-between; align-items: flex-end; padding-bottom: 16px; border-bottom: 1px solid var(--stone-100); margin-bottom: 24px; }
.menu-row h4 { font-size: 16px; font-weight: bold; color: var(--stone-800); }
.menu-row span { font-family: var(--serif); color: var(--stone-800); }
.menu-desc { font-size: 12px; color: var(--stone-500); margin-top: 4px; }

/* Footer */
footer { background: var(--stone-900); color: var(--stone-500); padding: 80px 24px; text-align: center; }
footer h2 { color: white; font-family: var(--serif); letter-spacing: 0.2em; margin-bottom: 8px; }

/* Floating Button */
.float-btn {
    position: fixed; bottom: 32px; right: 32px; background: var(--stone-800); color: white;
    padding: 16px 24px; border-radius: 40px; text-decoration: none; display: flex; align-items: center; gap: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2); z-index: 1100; font-size: 10px; font-weight: bold; letter-spacing: 0.2em; transition: 0.3s;
}
.float-btn:hover { background: var(--stone-900); transform: scale(1.05); }

@media (max-width: 768px) {
    .nav-links { display: none; }
    .mobile-toggle { display: block; }
    .info-grid { grid-template-columns: 1fr; }
    .hero h2 { font-size: 32px; }
    .float-btn span { display: none; }
    .float-btn { padding: 16px; border-radius: 50%; }
}

/* Animation */
.fade-in { animation: fadeIn 1s forwards; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }