/*
 * Shipshape FM — Layout patterns
 *
 * Page-level structural patterns. Two main layouts:
 *
 *   1. .auth-shell — single centered card on cream background.
 *      Used for: signup, login, password reset, marketing landing.
 *
 *   2. .app-shell — sidebar + topbar + main content area.
 *      Used for: dashboard and all authenticated tenant pages.
 *
 * The app shell is a two-column layout: persistent sidebar (left) and a
 * main column (right) that holds the topbar, breadcrumbs, and page content.
 *
 * Sidebar collapse behavior:
 *   Desktop (> 720px): hamburger toggles a collapsed state via the
 *     .is-sidebar-collapsed class on .app-shell. Sidebar slides to width 0,
 *     main content expands. Preference persists in localStorage.
 *   Mobile (≤ 720px): sidebar is off-canvas by default. Hamburger slides
 *     it in via .is-open on .sidebar. Click outside to close.
 */

/* ─── Auth shell (public, anonymous pages) ─────────────────────────── */

.auth-shell {
    min-height: 100vh;
    background: var(--bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-10) var(--space-5);
}

.auth-brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: var(--space-6);
}

.auth-brand .brand-wordmark {
    font-size: var(--text-2xl);
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    box-shadow: var(--shadow-sm);
}

.auth-card-title {
    font-family: var(--font-serif);
    font-size: var(--text-2xl);
    font-weight: var(--weight-semibold);
    color: var(--ink);
    letter-spacing: -0.6px;
    line-height: 1.1;
    margin-bottom: var(--space-2);
}

.auth-card-subtitle {
    color: var(--ink-soft);
    font-size: var(--text-sm);
    margin-bottom: var(--space-6);
}

.auth-footer {
    margin-top: var(--space-6);
    padding-top: var(--space-5);
    border-top: 1px solid var(--border);
    text-align: center;
    font-size: var(--text-sm);
    color: var(--ink-soft);
}

.auth-footer a {
    color: var(--teal);
    font-weight: var(--weight-semibold);
}

.auth-messages {
    width: 100%;
    max-width: 420px;
    margin-bottom: var(--space-4);
}

/* ─── App shell (authenticated tenant pages) ───────────────────────── */

.app-shell {
    min-height: 100vh;
    background: var(--bg);
    display: flex;
}

/* ─── Sidebar ──────────────────────────────────────────────────────── */

.sidebar {
    width: 240px;
    flex-shrink: 0;
    background: var(--card);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: var(--space-5) 0;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    transition: width var(--transition-fast), padding var(--transition-fast);
}

/* Collapsed state — sidebar hidden on desktop, main column expands */
.app-shell.is-sidebar-collapsed .sidebar {
    width: 0;
    padding: 0;
    border-right: none;
    overflow: hidden;
}

.sidebar-brand {
    display: block;
    padding: 0 var(--space-5) var(--space-6);
    text-decoration: none;
    color: inherit;
}

.sidebar-brand .brand-wordmark {
    font-size: var(--text-xl);
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 0 var(--space-3);
    flex: 1;
}

.sidebar-nav-item {
    display: block;
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--ink-soft);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: background var(--transition-fast), color var(--transition-fast);
}

.sidebar-nav-item:hover {
    background: var(--bg);
    color: var(--ink);
}

.sidebar-nav-item.is-active {
    background: var(--navy);
    color: #fff;
}

.sidebar-nav-item.is-active:hover {
    background: var(--navy);
    color: #fff;
}

.sidebar-footer {
    padding: var(--space-3);
    border-top: 1px solid var(--border);
    margin-top: var(--space-4);
}

/* ─── Main column (topbar + content) ───────────────────────────────── */

.app-main-column {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.topbar {
    background: var(--card);
    border-bottom: 1px solid var(--border);
    padding: var(--space-4) var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

.topbar-context {
    flex: 1;
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.topbar-tenant-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-serif);
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    color: var(--ink);
    padding: 5px var(--space-3);
    background: var(--bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    letter-spacing: -0.2px;
}

.topbar-tenant-tag::before {
    content: '';
    display: block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--teal);
}

.topbar-user-menu {
    display: flex;
    align-items: center;
    gap: var(--space-5);
}

.topbar-user-email {
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--ink);
}

.topbar-link {
    font-size: var(--text-sm);
    color: var(--ink-soft);
    text-decoration: none;
    font-weight: var(--weight-medium);
    transition: color var(--transition-fast);
}

.topbar-link:hover {
    color: var(--accent);
}

/* Hamburger toggle — visible on both desktop and mobile */
.sidebar-toggle {
    display: flex;
    background: transparent;
    border: none;
    padding: var(--space-2);
    cursor: pointer;
    flex-direction: column;
    gap: 4px;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

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

.sidebar-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--ink);
    border-radius: 2px;
}

/* ─── Breadcrumbs ──────────────────────────────────────────────────── */

.breadcrumbs {
    background: var(--card);
    border-bottom: 1px solid var(--border);
    padding: var(--space-3) var(--space-6);
}

.breadcrumbs-inner {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-2);
    font-size: var(--text-sm);
}

.breadcrumb-item {
    color: var(--ink-soft);
    text-decoration: none;
    font-weight: var(--weight-medium);
}

.breadcrumb-link:hover {
    color: var(--accent);
}

.breadcrumb-current {
    color: var(--ink);
    font-weight: var(--weight-semibold);
}

.breadcrumb-separator {
    color: var(--ink-soft);
    opacity: 0.5;
}

/* ─── Main content area ────────────────────────────────────────────── */

.app-messages {
    max-width: 1000px;
    margin: var(--space-4) auto 0;
    padding: 0 var(--space-6);
    width: 100%;
}

.app-main {
    flex: 1;
    max-width: 1000px;
    width: 100%;
    margin: 0 auto;
    padding: var(--space-8) var(--space-6);
}

/* ─── Responsive (single breakpoint at 720px) ──────────────────────── */

@media (max-width: 720px) {
    /* On mobile: sidebar is off-canvas by default, toggled open by hamburger */
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        width: 240px;
        height: 100vh;
        z-index: 50;
        transform: translateX(-100%);
        transition: transform var(--transition-fast);
        box-shadow: var(--shadow-sm);
        border-right: 1px solid var(--border);
        padding: var(--space-5) 0;
    }

    .sidebar.is-open {
        transform: translateX(0);
    }

    /* On mobile, the desktop collapse class is irrelevant — sidebar is always off-canvas */
    .app-shell.is-sidebar-collapsed .sidebar {
        width: 240px;
        padding: var(--space-5) 0;
        border-right: 1px solid var(--border);
    }

    .topbar {
        padding: var(--space-3) var(--space-4);
    }

    .topbar-user-menu {
        gap: var(--space-3);
    }

    .topbar-user-email {
        display: none;
    }

    .breadcrumbs {
        padding: var(--space-2) var(--space-4);
    }

    .app-main {
        padding: var(--space-5) var(--space-4);
    }

    .auth-shell {
        padding: var(--space-5) var(--space-4);
    }

    .auth-card {
        padding: var(--space-6);
    }

    .page-head {
        flex-direction: column;
        gap: var(--space-3);
    }

    .page-title {
        font-size: var(--text-2xl);
        letter-spacing: -0.6px;
    }

    .page-actions {
        width: 100%;
        flex-wrap: wrap;
    }
}