/* =============================================================================
   Cellar - Stylesheet
   Dark theme, system fonts, no external deps
   ============================================================================= */

:root {
    --bg: #0f1419;
    --bg-elevated: #1a1f24;
    --bg-input: #161b22;
    --border: #30363d;
    --border-soft: #21262d;
    --text: #f0f6fc;
    --text-muted: #8b949e;
    --text-faint: #6e7681;
    --accent: #58a6ff;
    --accent-hover: #4493f8;
    --success: #56d364;
    --warn: #d29922;
    --err: #f85149;
    --link: #58a6ff;
    --sidebar-w: 220px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
    height: 100%;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

/* -----------------------------------------------------------------
   Layout: app shell
   ----------------------------------------------------------------- */

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

.sidebar {
    width: var(--sidebar-w);
    background: var(--bg-elevated);
    border-right: 1px solid var(--border);
    padding: 1rem 0;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
}

.sidebar-brand {
    padding: 4px 1.25rem 1rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 0.5rem;
}
.sidebar-brand h1 {
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 0.5px;
}
.sidebar-brand .ver {
    font-size: 11px;
    color: var(--text-faint);
    margin-top: 2px;
}

.sidebar-section {
    margin-top: 1rem;
}
.sidebar-section-title {
    font-size: 10px;
    color: var(--text-faint);
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 0 1.25rem;
    margin-bottom: 4px;
}
.sidebar a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 7px 1.25rem;
    color: var(--text-muted);
    text-decoration: none;
    border-left: 2px solid transparent;
    font-size: 13.5px;
}
.sidebar a:hover {
    color: var(--text);
    background: rgba(255,255,255,0.02);
}
.sidebar a.active {
    color: var(--text);
    background: rgba(88,166,255,0.06);
    border-left-color: var(--accent);
}

.sidebar-bottom {
    margin-top: auto;
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--border);
    font-size: 12px;
}
.sidebar-user {
    color: var(--text);
    margin-bottom: 4px;
    font-weight: 500;
}
.sidebar-role {
    color: var(--text-faint);
    font-size: 11px;
}
.sidebar-logout {
    margin-top: 8px;
}
.sidebar-logout button {
    width: 100%;
    text-align: left;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-muted);
    padding: 5px 8px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
}
.sidebar-logout button:hover {
    color: var(--text);
    border-color: var(--text-muted);
}

.main {
    flex: 1;
    padding: 1.5rem 2rem;
    min-width: 0;
    overflow-x: auto;
}

/* -----------------------------------------------------------------
   Header / page title
   ----------------------------------------------------------------- */

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}
.page-header h2 {
    font-size: 22px;
    font-weight: 600;
}
.page-header .subtitle {
    color: var(--text-muted);
    font-size: 13px;
    margin-top: 2px;
}
.page-header .actions {
    display: flex;
    gap: 8px;
}

/* -----------------------------------------------------------------
   Cards
   ----------------------------------------------------------------- */

.card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.25rem 1.5rem;
    margin-bottom: 1rem;
}
.card h3 {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 1rem;
    font-weight: 600;
}

/* -----------------------------------------------------------------
   Stat tiles
   ----------------------------------------------------------------- */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px;
    margin-bottom: 1.5rem;
}
.stat {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 14px 16px;
}
.stat-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}
.stat-value {
    font-size: 24px;
    font-weight: 600;
    color: var(--text);
    font-variant-numeric: tabular-nums;
}

/* -----------------------------------------------------------------
   Forms
   ----------------------------------------------------------------- */

.form-group {
    margin-bottom: 1rem;
}
.form-group label {
    display: block;
    font-size: 13px;
    color: var(--text);
    margin-bottom: 6px;
    font-weight: 500;
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 8px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text);
    font-family: inherit;
    font-size: 14px;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}
.form-group .hint {
    font-size: 12px;
    color: var(--text-faint);
    margin-top: 4px;
}
.form-group .error {
    color: var(--err);
    font-size: 12px;
    margin-top: 4px;
}
.form-group input.has-error,
.form-group select.has-error {
    border-color: var(--err);
}
.form-checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
}
.form-checkbox input {
    width: auto;
}

/* -----------------------------------------------------------------
   Buttons
   ----------------------------------------------------------------- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text);
    font-family: inherit;
    font-size: 13.5px;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.15s, border-color 0.15s;
}
.btn:hover {
    background: var(--bg-elevated);
    border-color: var(--text-muted);
    text-decoration: none;
}
.btn-primary {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}
.btn-primary:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
    color: white;
}
.btn-danger {
    background: transparent;
    border-color: var(--err);
    color: var(--err);
}
.btn-danger:hover {
    background: var(--err);
    color: white;
    border-color: var(--err);
}
.btn-sm {
    padding: 4px 10px;
    font-size: 12px;
}

/* -----------------------------------------------------------------
   Auth-centered layout (login, setup)
   ----------------------------------------------------------------- */

.auth-wrap {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}
.auth-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 2rem;
    width: 100%;
    max-width: 420px;
}
.auth-card h1 {
    font-size: 22px;
    margin-bottom: 4px;
    font-weight: 600;
}
.auth-card .subtitle {
    color: var(--text-muted);
    font-size: 13px;
    margin-bottom: 1.5rem;
}
.auth-footer {
    text-align: center;
    color: var(--text-faint);
    font-size: 12px;
    margin-top: 1.5rem;
}

/* -----------------------------------------------------------------
   Tables
   ----------------------------------------------------------------- */

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 6px;
    overflow: hidden;
}
th, td {
    text-align: left;
    padding: 10px 14px;
    font-size: 13px;
    border-bottom: 1px solid var(--border-soft);
}
th {
    background: rgba(255,255,255,0.02);
    color: var(--text-muted);
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(255,255,255,0.02); }

.tag {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 500;
    background: var(--bg-input);
    color: var(--text-muted);
}
.tag-admin { background: rgba(248,81,73,0.1); color: var(--err); }
.tag-manager { background: rgba(210,153,34,0.1); color: var(--warn); }
.tag-reviewer { background: rgba(88,166,255,0.1); color: var(--accent); }
.tag-viewer { background: rgba(139,148,158,0.1); color: var(--text-muted); }
.tag-active { background: rgba(86,211,100,0.1); color: var(--success); }
.tag-inactive { background: rgba(139,148,158,0.1); color: var(--text-faint); }

/* -----------------------------------------------------------------
   Flash messages
   ----------------------------------------------------------------- */

.flash {
    padding: 10px 16px;
    border-radius: 6px;
    margin-bottom: 1rem;
    font-size: 13.5px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.flash-success {
    background: rgba(86,211,100,0.08);
    color: var(--success);
    border-left: 3px solid var(--success);
}
.flash-error {
    background: rgba(248,81,73,0.08);
    color: var(--err);
    border-left: 3px solid var(--err);
}
.flash-warning {
    background: rgba(210,153,34,0.08);
    color: var(--warn);
    border-left: 3px solid var(--warn);
}
.flash-info {
    background: rgba(88,166,255,0.08);
    color: var(--accent);
    border-left: 3px solid var(--accent);
}

/* -----------------------------------------------------------------
   QR / TOTP setup
   ----------------------------------------------------------------- */

.qr-block {
    text-align: center;
    margin: 1.5rem 0;
}
.qr-block img {
    max-width: 200px;
    background: white;
    padding: 8px;
    border-radius: 6px;
}
.totp-secret {
    background: var(--bg-input);
    border: 1px solid var(--border);
    padding: 8px 12px;
    border-radius: 4px;
    font-family: "SF Mono", Consolas, monospace;
    font-size: 13px;
    word-break: break-all;
    margin: 0.5rem 0 1rem;
    color: var(--text);
}

/* -----------------------------------------------------------------
   Utilities
   ----------------------------------------------------------------- */

.muted { color: var(--text-muted); }
.faint { color: var(--text-faint); }
.mono { font-family: "SF Mono", Consolas, monospace; font-size: 12.5px; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap { gap: 12px; }
.mt-1 { margin-top: 1rem; }
.mb-1 { margin-bottom: 1rem; }
.mt-2 { margin-top: 2rem; }
.text-center { text-align: center; }
.actions-cell { display: flex; gap: 6px; justify-content: flex-end; }

/* -----------------------------------------------------------------
   Responsive: collapse sidebar
   ----------------------------------------------------------------- */

@media (max-width: 768px) {
    .app { flex-direction: column; }
    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--border);
        padding: 0.75rem 0;
    }
    .sidebar-section { display: none; }
    .sidebar.open .sidebar-section { display: block; }
    .main { padding: 1rem; }
}

/* =============================================================================
   Mobile responsiveness + PWA
   v0.9.2o
   ============================================================================= */

/* Hamburger button (hidden on desktop) */
.hamburger {
    display: none;
    position: fixed;
    top: 12px;
    left: 12px;
    z-index: 200;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    color: var(--text);
    width: 40px;
    height: 40px;
    border-radius: 6px;
    font-size: 18px;
    cursor: pointer;
    align-items: center;
    justify-content: center;
}

/* Table scroll wrapper — use on any overflow table */
.table-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}
.table-scroll table {
    min-width: 600px;
}

/* ---- Tablet (max 900px) ---- */
@media (max-width: 900px) {
    :root { --sidebar-w: 200px; }
    .main { padding: 1.25rem 1.25rem; }
}

/* ---- Mobile (max 768px) ---- */
@media (max-width: 768px) {

    /* Layout */
    .hamburger { display: flex; }

    .app { flex-direction: column; }

    .sidebar {
        position: fixed;
        top: 0; left: 0; bottom: 0;
        width: 260px;
        z-index: 100;
        transform: translateX(-100%);
        transition: transform 0.25s ease;
        overflow-y: auto;
        border-right: 1px solid var(--border);
        border-bottom: none;
        padding-top: 3.5rem;
    }
    .sidebar.open {
        transform: translateX(0);
        box-shadow: 4px 0 20px rgba(0,0,0,0.5);
    }
    .sidebar-section { display: block; } /* always show, toggle via transform */

    .main {
        padding: 1rem;
        padding-top: 3.5rem; /* space for hamburger */
        min-height: 100vh;
    }

    /* Page header: stack on mobile */
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
        margin-bottom: 1rem;
    }
    .page-header .actions {
        width: 100%;
        flex-wrap: wrap;
    }
    .page-header .actions form,
    .page-header .actions select {
        width: 100%;
    }
    .page-header h2 { font-size: 18px; }

    /* Stats grid: 2 columns on mobile */
    .stats-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 8px;
        margin-bottom: 1rem;
    }
    .stat-value { font-size: 20px; }
    .stat { padding: 10px 12px; }

    /* Cards */
    .card { padding: 1rem; }

    /* Tables: scroll horizontally */
    table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        white-space: nowrap;
    }
    th, td { padding: 8px 10px; font-size: 12px; }

    /* Filter bars: stack vertically */
    form[method="GET"] > div[style*="display:flex"],
    .filter-bar {
        flex-direction: column !important;
        align-items: stretch !important;
    }
    form[method="GET"] select {
        width: 100%;
        min-height: 44px; /* touch target */
        font-size: 16px; /* prevents iOS zoom */
    }

    /* Buttons: minimum touch target */
    .btn {
        min-height: 44px;
        padding: 10px 14px;
    }
    .btn-sm {
        min-height: 36px;
        padding: 6px 10px;
    }

    /* Tab pills: scroll horizontally */
    div[style*="display:flex"][style*="flex-wrap:wrap"],
    div[style*="display:flex"][style*="flex-wrap: wrap"] {
        flex-wrap: nowrap !important;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 4px;
    }

    /* Charts: full width */
    canvas { max-width: 100% !important; }

    /* Auth card */
    .auth-card { padding: 1.25rem; }

    /* Actions cell */
    .actions-cell { flex-wrap: wrap; justify-content: flex-start; }

    /* Sidebar overlay close */
    .sidebar-overlay {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,0.5);
        z-index: 99;
    }
}

/* ---- Small mobile (max 400px) ---- */
@media (max-width: 400px) {
    .stats-grid { grid-template-columns: 1fr 1fr !important; }
    .stat-value { font-size: 18px; }
    th, td { font-size: 11px; padding: 6px 8px; }
}