/* Layout CSS */

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(26, 26, 26, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(229, 213, 165, 0.1);
    transition: background-color 0.3s ease, padding 0.3s ease;
}

.header__inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    height: var(--header-height);
}

.header__logo img {
    height: 80px;
    width: auto;
}

.header__nav {
    display: none;
}

@media (min-width: 768px) {
    .header__nav {
        display: block;
    }
}

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

.header__nav-list a {
    font-family: var(--font-en);
    font-size: 1.1rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-main);
    position: relative;
}

.header__nav-list a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-text-main);
    transition: width 0.3s ease;
}

.header__nav-list a:hover::after {
    width: 100%;
}

/* Mobile Menu Button */
.header__menu-btn {
    display: block;
    background: none;
    border: none;
    cursor: pointer;
    width: 30px;
    height: 20px;
    position: relative;
    z-index: 1001;
}

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

.header__menu-btn span {
    display: block;
    position: absolute;
    width: 100%;
    height: 2px;
    background-color: var(--color-text-main);
    transition: all 0.3s ease;
}

.header__menu-btn span:nth-child(1) {
    top: 0;
}

.header__menu-btn span:nth-child(2) {
    top: 50%;
    transform: translateY(-50%);
}

.header__menu-btn span:nth-child(3) {
    bottom: 0;
}

/* Hero Section */
.hero {
    height: 100vh;
    width: 100%;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background-image: url('../assets/images/hero_bg.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.6));
    z-index: 1;
}

.hero__content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: var(--spacing-md);
}

.hero__title {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.hero__title .en {
    font-family: var(--font-en);
    font-size: 1.5rem;
    letter-spacing: 0.2em;
    color: var(--color-text-main);
    text-transform: uppercase;
}

.hero__title .ja {
    font-size: 2rem;
    font-weight: 300;
    line-height: 1.6;
    color: var(--color-white);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

@media (min-width: 768px) {
    .hero__title .en {
        font-size: 2rem;
    }

    .hero__title .ja {
        font-size: 3.5rem;
    }
}

/* Footer */
.footer {
    background-color: #000;
    padding: var(--spacing-lg) 0;
    text-align: center;
    border-top: 1px solid #333;
}

.copyright {
    font-family: var(--font-en);
    font-size: 0.9rem;
    color: var(--color-text-sub);
}