html {
    overscroll-behavior: none;
}

body {
    overscroll-behavior: none;
}

nav.top-nav {
    position: static;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    backdrop-filter: blur(20px);
    background: rgba(0, 0, 0, 0.7);
    border-bottom: 1px solid rgba(247,244,237,0.08);
    padding: calc(20px + env(safe-area-inset-top)) 48px 20px;
}

.nav-inner {
    max-width: var(--layout-max-width, 1400px);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 700;
    color: var(--cream-paper);
    letter-spacing: 1px;
    text-decoration: none;
    transition: color 0.2s ease;
}

.brand:hover {
    color: var(--amber-light);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 18px;
}

.nav-links a {
    font-family: var(--font-body);
    font-size: 15px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: currentColor;
    transition: width 0.3s ease;
}

.nav-links a:hover {
    color: var(--cream-paper);
}

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

.nav-download {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 18px;
    border-radius: 0;
    background: var(--red-reel);
    color: var(--cream-paper);
    text-decoration: none;
    font-weight: 600;
    font-family: var(--font-body);
    font-size: 15px;
    border: 1px solid var(--red-reel);
    transition: all 0.2s ease;
    min-height: 44px;
}

.nav-download:hover {
    background: transparent;
    color: var(--cream-paper);
    border-color: var(--amber-light);
    box-shadow: 0 8px 24px rgba(247,244,237,0.16);
    transform: translateY(-1px);
}

footer,
.site-footer {
    padding: 80px 0 48px;
    background: rgba(10,10,10,0.6);
    backdrop-filter: blur(30px);
    position: relative;
    isolation: isolate;
    border-top: 1px solid rgba(247,244,237,0.06);
}

footer::before,
.site-footer::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: -60px;
    height: 60px;
    background: linear-gradient(180deg, transparent, rgba(10,10,10,0.3));
    pointer-events: none;
    z-index: -1;
}

.footer-inner {
    max-width: var(--layout-max-width, 1400px);
    margin: 0 auto;
    display: grid;
    gap: 32px;
    padding: 0 48px;
    width: 100%;
}

.footer-top {
    display: flex;
    flex-wrap: wrap;
    gap: 32px;
    justify-content: space-between;
    align-items: flex-start;
}

.footer-top p {
    margin: 0;
}

.footer-links {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    align-items: center;
}

.footer-links a {
    font-family: var(--font-body);
    font-size: 15px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
    position: relative;
}

.footer-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: currentColor;
    transition: width 0.3s ease;
}

.footer-links a:hover {
    color: var(--cream-paper);
}

.footer-links a:hover::after {
    width: 100%;
}

.donation-chips {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: flex-start;
}

.donation-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 18px;
    border-radius: 0;
    border: 1px solid rgba(247,244,237,0.15);
    background: transparent;
    color: var(--text-secondary);
    font-size: 13px;
    font-family: var(--font-mono);
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    overflow: visible;
    white-space: nowrap;
}

.donation-chip:hover {
    background: rgba(247,244,237,0.05);
    border-color: var(--amber-light);
    color: var(--cream-paper);
    transform: translateY(-2px);
}

.donation-chip:focus-visible {
    outline: 2px solid var(--amber-light);
    outline-offset: 2px;
}

.donation-chip::after {
    content: attr(data-status);
    position: absolute;
    left: 50%;
    bottom: -42px;
    transform: translate(-50%, 10px);
    background: var(--amber-light);
    color: var(--black-rich);
    padding: 8px 16px;
    border-radius: 0;
    font-size: 12px;
    font-weight: 600;
    font-family: var(--font-body);
    letter-spacing: 0.5px;
    text-transform: uppercase;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
    box-shadow: 0 10px 30px rgba(0,0,0,0.4);
    white-space: nowrap;
    z-index: 1;
}

.donation-chip[data-status]::after {
    opacity: 1;
    transform: translate(-50%, 0);
}

.donation-chip[data-status-state="error"]::after {
    background: var(--red-reel);
    color: var(--cream-paper);
}

.footer-copyright {
    color: var(--text-muted);
    font-size: 13px;
    font-family: var(--font-mono);
    margin: 0;
}

@media (max-width: 880px) {
    nav.top-nav {
        padding: calc(16px + env(safe-area-inset-top)) 24px 16px;
    }

    .nav-links {
        gap: 12px;
    }

    .nav-links a {
        font-size: 14px;
    }
}

@media (max-width: 560px) {
    nav.top-nav {
        padding: calc(12px + env(safe-area-inset-top)) 16px 12px;
    }

    .nav-inner {
        flex-direction: column;
        gap: 16px;
        align-items: stretch;
    }

    .brand {
        font-size: 20px;
        text-align: center;
    }

    .nav-links {
        justify-content: center;
        gap: 8px;
        flex-wrap: wrap;
    }

    .nav-links a {
        font-size: 13px;
    }

    .nav-download {
        padding: 10px 20px;
        font-size: 14px;
        min-height: 40px;
        width: 100%;
        justify-content: center;
    }

    footer,
    .site-footer {
        padding: 40px 0 28px;
    }

    .footer-inner {
        text-align: center;
        gap: 16px;
        padding: 0 16px;
    }

    .footer-top {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 16px;
    }

    .footer-links {
        justify-content: center;
    }

    .donation-chips {
        flex-direction: column;
        align-items: stretch;
        width: 100%;
    }

    .donation-chip {
        width: 100%;
        white-space: normal;
        overflow-wrap: anywhere;
        word-break: break-all;
        text-align: center;
        line-height: 1.4;
    }
}