.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding-top: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--pico-muted-border-color);
    margin-bottom: 1rem;
}

.site-header img {
    height: 2rem;
    width: auto;
}

/* Brand (logo + wordmark) */
.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.875rem;
    text-decoration: none;
    color: inherit;
}

.brand-separator {
    width: 1px;
    height: 1.5rem;
    background-color: var(--pico-muted-border-color);
}

.brand-name {
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: 0.02em;
    color: var(--pico-primary);
}

.site-header > nav,
.site-header > nav > ul,
.site-header > nav > ul > li {
    padding: 0;
    margin: 0;
}

/* Icon-only logout button: no border, no background */
.logout-form {
    display: inline;
    margin: 0;
}

.logout-button {
    background: transparent;
    border: none;
    padding: 0.25rem;
    margin: 0;
    width: auto;
    color: var(--pico-secondary);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    line-height: 1;
}

.logout-button:hover,
.logout-button:focus {
    color: var(--pico-primary);
    background: transparent;
}

.logout-button .ti {
    font-size: 1.25rem;
}

/* App shell: sidebar + content */
.layout-grid {
    display: grid;
    grid-template-columns: 12rem 1fr;
    gap: 2rem;
    align-items: start;
}

.layout-grid > aside {
    position: sticky;
    top: 1rem;
}

.layout-grid > aside nav summary {
    font-weight: bold;
}

.layout-grid > aside nav ul {
    list-style: none;
    padding-left: 0.5rem;
    margin: 0.5rem 0 0;
}

.layout-grid > aside nav li {
    padding: 0.25rem 0;
}

.layout-grid > aside nav a {
    text-decoration: none;
    color: var(--pico-secondary);
}

.layout-grid > aside nav a:hover {
    color: var(--pico-primary);
}

.layout-grid > aside nav a[aria-current="page"] {
    color: var(--pico-primary);
    font-weight: bold;
}

.layout-grid > main {
    min-width: 0;
}

/* Mobile sidebar toggle (hidden on desktop) */
.nav-toggle {
    display: none;
    background: transparent;
    border: none;
    padding: 0.25rem;
    margin: 0 0.5rem 0 0;
    width: auto;
    color: var(--pico-secondary);
    cursor: pointer;
    align-items: center;
    line-height: 1;
}

.nav-toggle:hover,
.nav-toggle:focus {
    color: var(--pico-primary);
    background: transparent;
}

.nav-toggle .ti {
    font-size: 1.5rem;
}

.nav-backdrop {
    display: none;
}

@media (max-width: 768px) {
    .layout-grid {
        grid-template-columns: 1fr;
    }

    .layout-grid > aside {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        width: 80%;
        max-width: 20rem;
        background: var(--pico-background-color);
        padding: 1.5rem 1rem;
        overflow-y: auto;
        z-index: 1000;
        transform: translateX(-100%);
        transition: transform 0.2s ease-in-out;
        box-shadow: 2px 0 12px rgba(0, 0, 0, 0.15);
    }

    body.nav-open .layout-grid > aside {
        transform: translateX(0);
    }

    .nav-backdrop {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.4);
        z-index: 999;
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.2s ease-in-out;
    }

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

    body.nav-open {
        overflow: hidden;
    }

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

.app-page-title {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

article {
    box-shadow: none;
    border: var(--pico-border-width) solid var(--pico-muted-border-color);
    border-radius: var(--pico-border-radius);
}

article.error {
    border-color: var(--pico-color-red-500);
    background-color: var(--pico-color-red-50);
}

/* Forms */

.form-label {
    margin-bottom: 8px;
    font-weight: bold;
}

.form-label:not(:first-child) {
    margin-top: 12px;
}

.error-message {
    color: var(--pico-color-red-500);
}

.dropzone {
    display: grid;
    place-items: center;
    border: 2px dashed #b4c0cf;
    border-radius: var(--pico-border-radius);
    padding: 3rem 1.5rem;
    background: #f8fafc;
    transition: background-color .15s ease, border-color .15s ease, box-shadow .15s ease;
    text-align: center;
    margin-bottom: var(--pico-spacing);
}

.dropzone:not(.hover-disabled):hover,
.dropzone:not(.hover-disabled):focus-within {
    border-color: var(--pico-primary);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--pico-primary) 20%, transparent);
    cursor: pointer;
}

.dropzone.is-dragover {
    background: color-mix(in srgb, var(--pico-primary) 8%, white);
    border-color: var(--pico-primary);
}

.dropzone__icon {
    font-size: 2.25rem;
    line-height: 1;
    margin-bottom: .25rem;
}

.dropzone__hint {
    margin-top: .25rem;
    font-size: .95rem;
    color: #6b7280;
}