/* ==========================================================================
   RepoVault — application shell (header, sidebar, main content)
   Used by authenticated pages (dashboard, settings).
   ========================================================================== */

.app-shell {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.app-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    height: 56px;
    display: flex;
    align-items: center;
    padding: 0 var(--space-5);
    gap: var(--space-4);
}

.app-brand {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
    font-size: var(--text-md);
}

.app-brand:hover {
    color: var(--text-primary);
}

.app-brand-logo {
    width: 24px;
    height: 24px;
    background: linear-gradient(135deg, var(--accent) 0%, #a78bfa 100%);
    border-radius: var(--radius-sm);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 14px;
    font-weight: 700;
}

.app-header-center {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-3);
    min-width: 0;
}

.app-header-right {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

/* ===== header v2 ==========================================================
   Redesigned 2026-04-22. Goals: one segmented filter, primary CTA, every
   other action tucked into a kebab menu so the bar stays uncluttered.
   ========================================================================= */

.app-header-v2 {
    gap: var(--space-3);
}

/* Filter group: one segmented control pill, no separators. */
.filter-group-v2 {
    display: inline-flex;
    align-items: stretch;
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 2px;
    gap: 2px;
}
.filter-group-v2 .filter-pill {
    border: 0;
    background: transparent;
    color: var(--text-muted);
    padding: 5px 10px;
    font-size: var(--text-sm);
    font-weight: 500;
    border-radius: calc(var(--radius-md) - 2px);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: background 120ms ease, color 120ms ease;
}
.filter-group-v2 .filter-pill:hover {
    color: var(--text-primary);
    background: rgba(255,255,255,0.04);
}
.filter-group-v2 .filter-pill.active {
    color: var(--text-primary);
    background: var(--bg-surface);
    box-shadow: 0 1px 2px rgba(0,0,0,0.4);
}
.filter-group-v2 .filter-pill .count {
    font-size: 11px;
    opacity: 0.75;
    font-variant-numeric: tabular-nums;
}
.filter-group-v2 .flash-trigger {
    margin-left: 2px;
    cursor: pointer;
    color: var(--accent);
    transition: transform 120ms ease;
}
.filter-group-v2 .flash-trigger:hover {
    transform: scale(1.15);
}

/* Toggle chips (Docker / ★) — small compact group */
.toggle-chips {
    display: inline-flex;
    gap: 2px;
    align-items: center;
}

/* Kebab menu */
.header-menu {
    position: relative;
}
.header-menu-dropdown {
    position: absolute;
    top: calc(100% + 4px);
    right: 0;
    min-width: 180px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: 0 10px 32px rgba(0,0,0,0.55);
    padding: 4px;
    display: none;
    z-index: 60;
}
.header-menu.open .header-menu-dropdown {
    display: block;
}
.menu-item {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 8px 10px;
    border: 0;
    background: transparent;
    color: var(--text-primary);
    font-size: var(--text-sm);
    border-radius: var(--radius-sm);
    cursor: pointer;
    text-decoration: none;
    font-family: inherit;
}
.menu-item:hover {
    background: rgba(255,255,255,0.05);
    color: var(--text-primary);
    text-decoration: none;
}
.menu-icon {
    width: 16px;
    display: inline-flex;
    justify-content: center;
    opacity: 0.75;
}
.menu-divider {
    height: 1px;
    background: var(--border);
    margin: 4px 0;
}

/* Responsive: collapse toggle-chips + select on small screens into the
   kebab menu. For now, hide them at < 900px — a further pass can move
   them into the dropdown. */
@media (max-width: 900px) {
    .toggle-chips,
    .header-select {
        display: none;
    }
}
@media (max-width: 720px) {
    .filter-group-v2 .count {
        display: none;
    }
}

.app-main {
    flex: 1;
    padding: var(--space-5);
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
}

/* Landing / auth layouts */
.auth-shell {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-5);
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
}

.auth-card-wide {
    max-width: 520px;
}

.auth-card h1 {
    font-size: var(--text-xl);
    margin-bottom: var(--space-2);
}

.auth-card .auth-subtitle {
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin-bottom: var(--space-5);
}

.auth-card .auth-footer {
    margin-top: var(--space-5);
    text-align: center;
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.auth-card .auth-footer a {
    color: var(--text-secondary);
}

.auth-card .auth-footer a:hover {
    color: var(--text-primary);
}

.form-section {
    margin-top: var(--space-5);
    padding-top: var(--space-5);
    border-top: 1px solid var(--border);
}

.form-section-title {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-3);
}

.radio-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2);
    margin-bottom: var(--space-3);
}

.radio-option {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: var(--text-sm);
    cursor: pointer;
    transition: all var(--transition);
    text-align: center;
}

.radio-option input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.radio-option:hover {
    border-color: var(--border-strong);
    color: var(--text-primary);
}

.radio-option.selected {
    background: var(--accent-soft);
    border-color: var(--accent);
    color: var(--accent);
}

/* Page container for simple pages */
.page-container {
    max-width: 720px;
    margin: 0 auto;
    padding: var(--space-6) var(--space-5);
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    color: var(--text-muted);
    font-size: var(--text-sm);
    margin-bottom: var(--space-5);
    text-decoration: none;
}

.back-link:hover {
    color: var(--text-primary);
}

/* Responsive */
@media (max-width: 768px) {
    .app-header {
        padding: 0 var(--space-3);
        gap: var(--space-2);
    }

    .app-main {
        padding: var(--space-3);
    }

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

    .page-container {
        padding: var(--space-5) var(--space-3);
    }
}