/* ========== Layout ========== */

/* Decorative Background Elements */
.bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(var(--grid-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
    background-size: 40px 40px;
    z-index: -1;
    pointer-events: none;
}

.scanline {
    width: 100%;
    height: 2px;
    background: rgba(255, 0, 51, 0.1);
    position: fixed;
    z-index: 999;
    top: 0;
    left: 0;
    animation: scan 6s linear infinite;
    pointer-events: none;
}

@keyframes scan {
    0% { top: -10%; }
    100% { top: 110%; }
}

/* Header */
.site-header {
    width: 100%;
    min-height: var(--header-h);
    height: var(--header-h);
    background-color: var(--secondary-bg);
    color: var(--text-secondary);
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding-top: 0;
    padding-bottom: 0;
    padding-left: max(60px, env(safe-area-inset-left));
    padding-right: max(60px, env(safe-area-inset-right));
    border-bottom: 2px solid var(--accent);
    position: relative;
    z-index: 100;
}

.logo {
    font-family: 'AlibabaSans-Medium';
    font-size: 24px;
    letter-spacing: 2px;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.logo-icon {
    width: 12px;
    height: 12px;
    background-color: var(--accent);
    transform: rotate(45deg);
}

/* Desktop nav */
.site-nav__list {
    display: flex;
    flex-direction: row;
    align-items: center;
    list-style: none;
    gap: 40px;
}

.site-nav__list a {
    color: var(--text-secondary);
    text-decoration: none;
    font-family: 'MiSans-Regular';
    font-size: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    padding-bottom: 5px;
    transition: 0.3s;
}

.site-nav__list a:hover {
    color: var(--accent);
}

.site-nav__list a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0%;
    height: 2px;
    background-color: var(--accent);
    transition: 0.3s;
}

.site-nav__list a:hover::after {
    width: 100%;
}

.lang-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 1px solid rgba(248, 248, 248, 0.35);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 0.3s, border-color 0.3s;
}

.lang-toggle:hover {
    color: var(--accent);
    border-color: var(--accent);
}

.lang-toggle i {
    font-size: 22px;
}

.menu-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 1px solid rgba(248, 248, 248, 0.35);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    flex-shrink: 0;
    transition: color 0.3s, border-color 0.3s;
    z-index: 400;
}

.menu-toggle:hover {
    color: var(--accent);
    border-color: var(--accent);
}

.menu-toggle__icon {
    font-size: 24px;
    line-height: 1;
}

.menu-toggle__icon--close {
    display: none;
}

body.nav-open .menu-toggle__icon--open {
    display: none;
}

body.nav-open .menu-toggle__icon--close {
    display: block;
}

.nav-backdrop {
    display: none;
}

@media (min-width: 769px) {
    .site-nav {
        position: static;
        transform: none;
        background: transparent;
        height: auto;
        width: auto;
        overflow: visible;
        padding: 0;
        border: none;
        flex-shrink: 0;
    }
}

@media (max-width: 1280px) {
    .site-header {
        padding-left: max(40px, env(safe-area-inset-left));
        padding-right: max(40px, env(safe-area-inset-right));
    }
}

@media (max-width: 768px) {
    .site-header {
        padding-left: max(16px, env(safe-area-inset-left));
        padding-right: max(16px, env(safe-area-inset-right));
    }

    .logo {
        font-size: 18px;
        letter-spacing: 1px;
    }

    .menu-toggle {
        display: inline-flex;
    }

    .nav-backdrop {
        display: block;
        position: fixed;
        top: var(--header-h);
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.55);
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.25s ease;
        z-index: 250;
    }

    body.nav-open .nav-backdrop {
        opacity: 1;
        pointer-events: auto;
    }

    .site-nav {
        position: fixed;
        top: var(--header-h);
        left: 0;
        right: 0;
        bottom: 0;
        background-color: var(--secondary-bg);
        padding: 28px max(20px, env(safe-area-inset-left)) 40px max(20px, env(safe-area-inset-right));
        transform: translateX(100%);
        transition: transform 0.28s ease;
        z-index: 300;
        overflow-y: auto;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    body.nav-open .site-nav {
        transform: translateX(0);
    }

    .site-nav__list {
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
    }

    .site-nav__item--lang {
        margin-bottom: 12px;
        padding-bottom: 16px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    }

    .site-nav__list a {
        display: block;
        padding: 14px 0;
        font-size: 18px;
    }

    .site-nav__list a::after {
        display: none;
    }
}

/* Footer */
footer {
    background: black;
    color: white;
    padding: 40px max(60px, env(safe-area-inset-left)) 40px max(60px, env(safe-area-inset-right));
    text-align: center;
    font-family: monospace;
    font-size: 12px;
    border-top: 2px solid var(--accent);
}

footer p:last-child {
    color: #666;
    margin-top: 10px;
}

@media (max-width: 768px) {
    footer {
        padding-left: max(20px, env(safe-area-inset-left));
        padding-right: max(20px, env(safe-area-inset-right));
    }
}