/* ── Public layout ── */
.public-shell {
    width: 100%;
    max-width: 760px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

.public-shell--wide {
    max-width: 1100px;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-2);
    flex-wrap: wrap;
    padding: var(--space-4) 0;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--space-5);
}

.topbar-brand {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-ink);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.topbar-brand:hover {
    text-decoration: none;
    color: var(--color-ink);
}

.topbar-right a {
    color: var(--color-ink-muted);
    font-weight: 500;
    font-size: 0.875rem;
}

.topbar-right a:hover {
    color: var(--color-ink);
}

.hero {
    margin-top: var(--space-5);
    margin-bottom: var(--space-5);
}

.hero h1 {
    font-size: 1.5rem;
    margin: 0 0 var(--space-1);
}

.hero p {
    margin: 0;
    color: var(--color-ink-muted);
    font-size: 0.9375rem;
}

@media (max-width: 576px) {
    .public-shell {
        padding: 0 0.875rem;
    }

    .topbar {
        margin-bottom: var(--space-4);
        padding: 0.875rem 0;
    }

    .topbar-brand {
        font-size: 0.9375rem;
    }

    .topbar-right {
        width: 100%;
    }

    .topbar-right a {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 100%;
        min-height: 40px;
        border: 1px solid var(--color-border);
        border-radius: var(--radius-sm);
        background: var(--color-paper);
        font-size: 0.8125rem;
    }

    .hero {
        margin-top: var(--space-4);
        margin-bottom: var(--space-4);
    }

    .hero h1 {
        font-size: 1.25rem;
    }

    .hero p {
        font-size: 0.875rem;
    }
}

/* ── Admin layout ── */
.admin-layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 240px;
    flex-shrink: 0;
    background: var(--sidebar-bg);
    color: var(--sidebar-fg);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 50;
    transition: transform 0.2s ease;
}

.sidebar-backdrop {
    position: fixed;
    inset: 0;
    z-index: 45;
    background: rgba(15, 23, 42, 0.55);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

.sidebar-header {
    padding: var(--space-5) var(--space-4);
    border-bottom: 1px solid var(--sidebar-border);
}

.sidebar-brand {
    font-size: 0.9375rem;
    font-weight: 700;
    color: #fff;
    text-decoration: none;
    display: block;
}

.sidebar-brand:hover {
    text-decoration: none;
    color: #fff;
}

.sidebar-brand small {
    display: block;
    font-size: 0.6875rem;
    color: var(--sidebar-fg);
    margin-top: var(--space-1);
    opacity: 0.6;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-3) var(--space-2);
}

.sidebar-nav a {
    display: block;
    padding: var(--space-2) var(--space-3);
    color: var(--sidebar-fg);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.875rem;
    border-radius: var(--radius-sm);
    margin-bottom: 2px;
}

.sidebar-nav a:hover {
    background: var(--sidebar-hover);
    color: #fff;
    text-decoration: none;
}

.sidebar-nav a.active {
    background: var(--sidebar-active);
    color: var(--sidebar-active-fg);
    font-weight: 600;
}

.sidebar-footer {
    padding: var(--space-4);
    border-top: 1px solid var(--sidebar-border);
    font-size: 0.8125rem;
}

.admin-main {
    flex: 1;
    margin-left: 240px;
    padding: var(--space-5);
    max-width: 100%;
    min-width: 0;
}

.sidebar-toggle {
    display: none;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-paper);
    color: var(--color-ink);
    font-size: 0.875rem;
    cursor: pointer;
}

.sidebar-toggle:hover {
    background: var(--color-bg-subtle);
}

@media (max-width: 768px) {
    body.sidebar-open {
        overflow: hidden;
    }

    .sidebar {
        width: min(82vw, 320px);
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
        box-shadow: 4px 0 16px rgba(0, 0, 0, 0.3);
    }

    .admin-main {
        margin-left: 0;
        padding: var(--space-4) 0.875rem;
    }

    .sidebar-toggle {
        display: inline-flex;
        min-height: 40px;
    }

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

    .page-header {
        margin-bottom: var(--space-4);
    }

    .page-header h1 {
        font-size: 1.125rem;
    }

    .page-header p {
        font-size: 0.8125rem;
    }
}

/* ── Page header (admin) ── */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    margin-bottom: var(--space-5);
    flex-wrap: wrap;
}

.page-header h1 {
    font-size: 1.25rem;
    margin: 0;
}

.page-header p {
    margin: 0.15rem 0 0;
    color: var(--color-ink-muted);
    font-size: 0.875rem;
}

/* ── Command palette ── */
body.palette-open { overflow: hidden; }

.command-overlay {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 12vh;
}

.command-overlay[hidden] {
    display: none !important;
}

.command-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
}

.command-box {
    position: relative;
    width: min(520px, calc(100% - 2rem));
    background: var(--color-paper);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--space-4);
    z-index: 101;
}

@media (max-width: 768px) {
    .command-overlay {
        padding-top: 8vh;
    }

    .command-box {
        width: calc(100% - 1.25rem);
        padding: var(--space-3);
    }
}

.command-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-3);
}

.command-title {
    margin: 0;
    font-size: 0.875rem;
    font-weight: 600;
}

.command-kbd {
    border: 1px solid var(--color-border);
    border-radius: 3px;
    background: var(--color-bg-subtle);
    color: var(--color-ink-muted);
    font-size: 0.75rem;
    padding: 0.1rem 0.35rem;
    font-family: var(--font-mono);
}

.command-list {
    display: grid;
    gap: var(--space-2);
}

.command-item {
    text-decoration: none;
    color: inherit;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: var(--space-2) var(--space-3);
    font-size: 0.875rem;
}

.command-item:hover {
    background: var(--color-bg-subtle);
    text-decoration: none;
    color: inherit;
}

.command-item strong { display: block; font-weight: 600; }
.command-item span { color: var(--color-ink-muted); font-size: 0.8125rem; }

/* ── Login ── */
.login-shell {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
}

.login-box {
    width: 100%;
    max-width: 380px;
}

@media (max-width: 576px) {
    .login-shell {
        align-items: stretch;
        padding: 0.75rem;
    }

    .login-box {
        margin: auto 0;
    }
}