/* Site header — matches legal/refund topbar pattern */

:root {
    --nav-height: 72px;
}

.topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--bg-elevated, var(--md-sys-color-surface-container));
    border-bottom: 1px solid var(--border, var(--md-sys-color-outline-variant));
    backdrop-filter: blur(10px);
}

.topbar-inner {
    max-width: var(--max-width, 1140px);
    margin: 0 auto;
    min-height: var(--nav-height);
    padding: 0 max(var(--gutter, 1.25rem), env(safe-area-inset-right, 0px)) 0
        max(var(--gutter, 1.25rem), env(safe-area-inset-left, 0px));
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.topbar .brand {
    color: var(--accent, var(--md-sys-color-primary));
    text-decoration: none;
    font-size: 18px;
    line-height: 1.2;
    flex-shrink: 0;
}

.topbar .brand > span {
    color: var(--accent, var(--md-sys-color-primary));
}

.topbar-links {
    display: none;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    justify-content: center;
}

.topbar-links a {
    color: var(--text, var(--md-sys-color-on-surface));
    text-decoration: none;
    padding: 6px 12px;
    border-radius: 16px;
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
    transition: background-color 0.25s ease, color 0.25s ease;
}

.topbar-links a:hover,
.topbar-links a[aria-current="page"] {
    background: var(--accent-muted, var(--md-sys-color-primary-container));
    color: var(--accent, var(--md-sys-color-on-primary-container));
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.nav-toggle,
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid var(--border, var(--md-sys-color-outline-variant));
    border-radius: var(--radius-md, 14px);
    background: var(--bg-card, var(--md-sys-color-surface-container-high));
    color: var(--text, var(--md-sys-color-on-surface));
    cursor: pointer;
    transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.nav-toggle:hover,
.theme-toggle:hover {
    border-color: var(--accent, var(--md-sys-color-primary));
    color: var(--accent, var(--md-sys-color-primary));
    background: var(--accent-muted, var(--md-sys-color-primary-container));
}

.nav-toggle .fi,
.theme-toggle .fi {
    font-size: 1.25rem;
}

@media (min-width: 900px) {
    .nav-toggle {
        display: none;
    }

    .topbar-links {
        display: flex;
    }
}

.nav-drawer {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--bg-elevated, var(--md-sys-color-surface-container));
    border-bottom: 1px solid var(--border, var(--md-sys-color-outline-variant));
    box-shadow: var(--shadow-md, 0 8px 30px rgba(0, 0, 0, 0.2));
    z-index: 999;
    padding: var(--space-md, 16px) max(var(--gutter, 1.25rem), env(safe-area-inset-right, 0px))
        var(--space-md, 16px) max(var(--gutter, 1.25rem), env(safe-area-inset-left, 0px));
}

.nav-drawer.open {
    display: block;
}

.nav-drawer ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.nav-drawer a {
    display: block;
    padding: 12px 14px;
    font-weight: 500;
    font-size: 15px;
    color: var(--text, var(--md-sys-color-on-surface));
    text-decoration: none;
    border-radius: var(--radius-md, 14px);
    transition: background 0.2s ease;
}

.nav-drawer a:hover {
    background: var(--accent-muted, var(--md-sys-color-primary-container));
    color: var(--accent, var(--md-sys-color-on-primary-container));
}

@media (min-width: 900px) {
    .nav-drawer {
        display: none !important;
    }
}

/* Legal pages: sticky instead of fixed */
body:not(.snap-page) .topbar {
    position: sticky;
}

body:not(.snap-page) .nav-drawer {
    top: 0;
}