:root {
    /* Colors - Agu Hair Style (Natural & Warm) */
    --bg-color: #ffffff;
    --bg-secondary: #f9f9f9;
    --text-color: #4a4a4a;
    --text-muted: #8c8c8c;
    --accent-gold: #c5a059;
    --accent-wood: #8d7b68;
    --border-color: #eeeeee;

    /* Fonts */
    --font-sans: 'Noto Sans JP', 'Inter', sans-serif;
    --font-serif: 'Noto Serif JP', 'Playfair Display', serif;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s;
}

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

/* Utilities */
.container {
    width: 90%;
    max-width: 1080px;
    margin: 0 auto;
}

.section {
    padding: 80px 0;
}

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

/* Typography */
.en-title {
    font-family: var(--font-serif);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent-wood);
    font-size: 1.1rem;
    display: block;
    text-align: center;
    margin-bottom: 24px;
}

.section-title {
    text-align: center;
    margin-bottom: 48px;
}

.section-title h2 {
    font-size: 2rem;
    margin-bottom: 10px;
    font-family: var(--font-serif);
    font-weight: 500;
}

/* Header */
.site-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    /* Vertically center */
    padding: 0 5%;
    /* Remove top/bottom padding to let height control centering if needed */
    height: 80px;
    /* Fixed height for consistent vertical alignment */
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
    z-index: 100;
}

.site-title {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-weight: 600;
    color: #222;
    letter-spacing: 0.1em;
    display: flex;
    align-items: center;
    height: 100%;
}

/* Desktop Navigation */
.desktop-nav {
    display: none;
}

@media (min-width: 768px) {
    .site-header {
        padding: 0 5%;
    }

    .hamburger {
        display: none;
    }

    .desktop-nav {
        display: flex;
        align-items: center;
        /* Vertically center items */
        height: 100%;
        gap: 30px;
        /* Equal spacing */
    }

    .desktop-nav a {
        font-family: var(--font-serif);
        font-size: 0.95rem;
        letter-spacing: 0.05em;
        color: #444;
        position: relative;
        padding: 5px 0;
    }

    /* Hover Effect: Underline expands */
    .desktop-nav a::after {
        content: '';
        position: absolute;
        width: 0;
        height: 1px;
        bottom: 0px;
        left: 0;
        background-color: var(--accent-gold);
        transition: width 0.3s;
    }

    .desktop-nav a:hover {
        color: var(--accent-gold);
    }

    .desktop-nav a:hover::after {
        width: 100%;
    }

    /* Reservation Button Special Style */
    .desktop-nav a.nav-btn-res {
        color: var(--accent-gold);
        border: 1px solid var(--accent-gold);
        padding: 10px 20px;
        border-radius: 2px;
        transition: all 0.3s;
    }

    .desktop-nav a.nav-btn-res:hover {
        background-color: var(--accent-gold);
        color: #fff;
    }

    .desktop-nav a.nav-btn-res::after {
        display: none !important;
        /* No underline for button */
    }
}

/* Hero Section with Video */
.hero {
    height: 90vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    background-color: #f4f4f4;
}

.hero-video {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: translate(-50%, -50%);
    z-index: 1;
    filter: brightness(0.9);
    /* Slightly darken so text is visible */
}

.hero-content {
    position: relative;
    z-index: 2;
    background-color: rgba(255, 255, 255, 0.8);
    padding: 60px 80px;
    backdrop-filter: blur(3px);
    border-radius: 2px;
}

/* Mobile Menu Overlay */
.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.98);
    z-index: 99;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transform: translateY(-100%);
    transition: transform 0.4s ease-in-out;
}

.menu-overlay.active {
    transform: translateY(0);
}

.menu-overlay nav a {
    display: block;
    font-size: 1.2rem;
    margin: 24px 0;
    text-align: center;
    font-family: var(--font-serif);
    color: #333;
}

.hamburger {
    display: block;
    cursor: pointer;
    z-index: 101;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 1px;
    background-color: #333;
    margin: 7px 0;
}

/* Sticky Footer */
.sticky-footer {
    position: fixed;
    bottom: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    border-top: 1px solid #eee;
    z-index: 1000;
    display: flex;
    justify-content: center;
    padding: 10px;
}

@media (min-width: 768px) {
    .sticky-footer {
        display: none;
    }
}

/* Button & CTA */
.btn-gold {
    display: inline-block;
    background-color: var(--accent-gold);
    color: #fff;
    padding: 14px 32px;
    border-radius: 2px;
    font-size: 0.95rem;
    letter-spacing: 0.1em;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-gold:hover {
    background-color: #d4b06b;
    /* Slightly lighter gold */
    transform: translateY(-2px);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    opacity: 0.95;
}

.btn-cta {
    background: #333;
    border: none;
    color: #fff;
    border-radius: 0;
    box-shadow: none;
    font-family: var(--font-sans);
    width: 100%;
    max-width: 400px;
    padding: 15px;
    text-align: center;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-cta:hover {
    background: #555;
    opacity: 0.9;
    transform: translateY(-2px);
}

.form-submit {
    background-color: var(--accent-gold);
    color: white;
    padding: 16px 40px;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    width: 100%;
    transition: all 0.3s ease;
}

.form-submit:hover {
    opacity: 0.8;
    transform: translateY(-2px);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.concept-text {
    font-family: var(--font-serif);
    text-align: center;
    line-height: 2.2;
    color: #555;
}

.desktop-nav a.active {
    color: var(--accent-gold);
}

/* Social Icons */
.social-links {
    margin-bottom: 24px;
    display: flex;
    justify-content: center;
    gap: 20px;
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: #fff;
    transition: all 0.3s ease;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

.social-icon:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.social-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    /* Fill the circle completely, cropping corners */
    display: block;
    padding: 0;
}