/* ── ABC Labels - Stylesheet ────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
    --bg:        #f4f5f7;
    --surface:   #ffffff;
    --border:    #dfe1e6;
    --text:      #172b4d;
    --text-dim:  #6b778c;
    --primary:   #0052cc;
    --primary-h: #0747a6;
    --accent:    #00875a;
    --danger:    #de350b;
    --warning:   #ff991f;
    --radius:    6px;
    --shadow:    0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
    --shadow-lg: 0 4px 12px rgba(0,0,0,.1);
}

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

html, body {
    height: 100%;
    font-family: 'DM Sans', -apple-system, sans-serif;
    font-size: 14px;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

/* ── Auth Pages ────────────────────────────────────── */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0052cc 0%, #003884 50%, #172b4d 100%);
    padding: 20px;
}

.auth-card {
    width: 100%;
    max-width: 400px;
    background: var(--surface);
    border-radius: 10px;
    box-shadow: 0 8px 30px rgba(0,0,0,.2);
    padding: 40px 36px;
}

.auth-logo {
    text-align: center;
    margin-bottom: 28px;
}

.auth-logo h1 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -.3px;
}

.auth-logo small {
    display: block;
    color: var(--text-dim);
    font-size: 13px;
    margin-top: 4px;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: .5px;
    margin-bottom: 6px;
}

.form-group input {
    width: 100%;
    padding: 10px 12px;
    font-family: inherit;
    font-size: 14px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    transition: border-color .2s, box-shadow .2s;
    outline: none;
    background: #fafbfc;
}

.form-group input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0,82,204,.12);
    background: #fff;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 20px;
    font-family: inherit;
    font-size: 14px;
    font-weight: 600;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: background .15s, transform .1s, box-shadow .15s;
    text-decoration: none;
}

.btn:active { transform: scale(.97); }

.btn-primary {
    background: var(--primary);
    color: #fff;
    width: 100%;
    padding: 12px;
}

.btn-primary:hover { background: var(--primary-h); }

.btn-success {
    background: var(--accent);
    color: #fff;
}

.btn-success:hover { background: #006644; }

.btn-danger {
    background: var(--danger);
    color: #fff;
}

.btn-outline {
    background: transparent;
    border: 1.5px solid var(--border);
    color: var(--text);
}

.btn-outline:hover { background: var(--bg); }

.btn-sm { padding: 6px 14px; font-size: 13px; }

.auth-footer {
    text-align: center;
    margin-top: 20px;
    font-size: 13px;
    color: var(--text-dim);
}

.auth-footer a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.auth-footer a:hover { text-decoration: underline; }

/* ── Flash Messages ────────────────────────────────── */
.flash {
    padding: 10px 16px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: 13px;
    font-weight: 500;
}

.flash-error   { background: #fff0f0; color: var(--danger); border: 1px solid #fecaca; }
.flash-success { background: #f0fdf4; color: var(--accent); border: 1px solid #bbf7d0; }
.flash-info    { background: #eff6ff; color: var(--primary); border: 1px solid #bfdbfe; }

/* ── App Layout ────────────────────────────────────── */
.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 52px;
    padding: 0 20px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.app-header .brand {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: -.3px;
}

.app-header .brand span {
    color: var(--text-dim);
    font-weight: 400;
    margin-left: 6px;
    font-size: 13px;
}

.app-header nav {
    display: flex;
    align-items: center;
    gap: 10px;
}

.app-header nav a {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    padding: 6px 10px;
    border-radius: var(--radius);
    transition: background .15s, color .15s;
}

.app-header nav a:hover {
    background: var(--bg);
    color: var(--text);
}

.app-header nav a.active {
    background: #e9f2ff;
    color: var(--primary);
}

.user-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text);
    background: var(--bg);
    padding: 4px 10px 4px 6px;
    border-radius: 20px;
}

.user-avatar {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
}

/* ── Toolbar ───────────────────────────────────────── */
.toolbar {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}

.toolbar .info {
    font-size: 12px;
    color: var(--text-dim);
    margin-left: auto;
    font-family: 'JetBrains Mono', monospace;
}

/* ── Spreadsheet Container ─────────────────────────── */
.sheet-wrapper {
    flex: 1;
    padding: 0;
    overflow: hidden;
}

#spreadsheet {
    width: 100%;
    height: calc(100vh - 52px - 50px); /* header + toolbar */
}

/* Handsontable overrides for Google Sheets feel */
.handsontable th {
    background: #f8f9fa !important;
    font-size: 12px !important;
    font-weight: 600 !important;
    color: var(--text-dim) !important;
}

.handsontable td {
    font-size: 13px !important;
    font-family: 'DM Sans', sans-serif !important;
}

.handsontable td.barcode-col {
    background: #fffbeb !important;
    font-family: 'JetBrains Mono', monospace !important;
    font-weight: 500 !important;
}

.handsontable td.readonly-col {
    color: var(--text-dim) !important;
    background: #fafbfc !important;
}

.handsontable td.price-col {
    text-align: right !important;
    font-family: 'JetBrains Mono', monospace !important;
}

.handsontable td.type-col {
    font-weight: 600 !important;
    text-align: center !important;
}

.handsontable td.type-regularprice { color: var(--primary) !important; }
.handsontable td.type-sales        { color: var(--warning) !important; }
.handsontable td.type-clearance    { color: var(--danger) !important; }

/* ── Admin Page ────────────────────────────────────── */
.admin-container {
    max-width: 800px;
    margin: 30px auto;
    padding: 0 20px;
}

.admin-container h2 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text);
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: var(--shadow);
    padding: 24px;
    margin-bottom: 20px;
}

.card h3 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
    color: var(--text);
}

.form-row {
    display: flex;
    gap: 16px;
    margin-bottom: 14px;
}

.form-row .form-group { flex: 1; margin-bottom: 0; }

.admin-container .btn { width: auto; }

/* ── Users Table ───────────────────────────────────── */
table.users-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

table.users-table th,
table.users-table td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

table.users-table th {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .5px;
    color: var(--text-dim);
    background: var(--bg);
}

table.users-table tr:hover td { background: #f8f9fa; }

.badge {
    display: inline-block;
    padding: 2px 8px;
    font-size: 11px;
    font-weight: 600;
    border-radius: 10px;
}

.badge-admin { background: #e9f2ff; color: var(--primary); }
.badge-user  { background: var(--bg); color: var(--text-dim); }

/* ── Loading Overlay ───────────────────────────────── */
.loading-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(255,255,255,.7);
    z-index: 9999;
    align-items: center;
    justify-content: center;
}

.loading-overlay.active { display: flex; }

.spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin .6s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ── Toast Notification ────────────────────────────── */
.toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    padding: 12px 20px;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    animation: toastIn .3s ease;
    max-width: 360px;
}

.toast-success { background: #065f46; color: #fff; }
.toast-error   { background: #991b1b; color: #fff; }
.toast-info    { background: #1e40af; color: #fff; }

@keyframes toastIn {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ── Responsive ────────────────────────────────────── */
@media (max-width: 768px) {
    .app-header { padding: 0 12px; }
    .toolbar { padding: 8px 12px; flex-wrap: wrap; }
    .form-row { flex-direction: column; }
    .auth-card { padding: 28px 24px; }
}