:root {
    --bg: #f4f7fb;
    --panel: #ffffff;
    --text: #172033;
    --muted: #667085;
    --line: #dce3ed;
    --primary: #173f73;
    --primary-dark: #102e55;
    --secondary: #e8f0fb;
    --success: #18794e;
    --success-bg: #eaf8f1;
    --danger: #b42318;
    --danger-bg: #fff0ee;
    --warning: #a15c00;
    --warning-bg: #fff7e6;
    --shadow: 0 12px 35px rgba(20, 42, 75, .08);
    --radius: 16px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--text);
    background: var(--bg);
}

button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .55; }

h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 0; font-size: clamp(1.45rem, 2vw, 2rem); }
h2 { margin-bottom: .25rem; font-size: 1.25rem; }

.topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem clamp(1rem, 3vw, 2.5rem);
    background: rgba(255,255,255,.94);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(12px);
}

.topbar-actions, .toolbar, .toolbar-actions, .button-row, .option-row, .footer {
    display: flex;
    align-items: center;
    gap: .75rem;
}

.app-shell {
    width: min(1600px, calc(100% - 2rem));
    margin: 1.25rem auto 2rem;
    display: grid;
    gap: 1.25rem;
}

.panel {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.setup-panel { padding: 1.25rem; }
.panel-heading {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: flex-start;
    margin-bottom: 1rem;
}
.panel-note { color: var(--muted); font-size: .9rem; }
.step-label, .eyebrow {
    margin-bottom: .25rem;
    font-size: .75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--primary);
}

.form-grid {
    display: grid;
    grid-template-columns: minmax(260px, 1.6fr) minmax(220px, .8fr) minmax(140px, .35fr);
    gap: 1rem;
}
.field { display: grid; gap: .45rem; font-weight: 700; font-size: .9rem; }
.field-wide { grid-column: 1 / -1; }
.field small { color: var(--muted); font-weight: 400; }

input, select, textarea {
    width: 100%;
    border: 1px solid #c8d1df;
    border-radius: 10px;
    padding: .75rem .85rem;
    color: var(--text);
    background: #fff;
    outline: none;
    transition: border-color .15s, box-shadow .15s;
}
textarea { resize: vertical; line-height: 1.45; }
input:focus, select:focus, textarea:focus {
    border-color: #6b96cb;
    box-shadow: 0 0 0 3px rgba(56, 112, 177, .14);
}

.option-row { margin-top: 1rem; flex-wrap: wrap; }
.check-label { display: inline-flex; align-items: center; gap: .5rem; font-size: .9rem; color: #344054; }
.check-label input { width: auto; }
.button-row { margin-top: 1rem; }

.button {
    border: 1px solid transparent;
    border-radius: 10px;
    padding: .7rem 1rem;
    font-weight: 750;
    white-space: nowrap;
}
.button-primary { color: #fff; background: var(--primary); }
.button-primary:hover { background: var(--primary-dark); }
.button-secondary { color: var(--primary); background: var(--secondary); border-color: #c9d9ed; }
.button-success { color: #fff; background: var(--success); }
.button-danger-outline { color: var(--danger); background: #fff; border-color: #e6aaa4; }
.button-ghost { color: #344054; background: #fff; border-color: var(--line); }
.button-full { width: 100%; }

.status-pill {
    display: inline-flex;
    align-items: center;
    padding: .45rem .7rem;
    border-radius: 999px;
    font-weight: 700;
    font-size: .8rem;
}
.status-loading { background: #eef2f6; color: #475467; }
.status-ok { background: var(--success-bg); color: var(--success); }
.status-error { background: var(--danger-bg); color: var(--danger); }

.alert {
    margin-bottom: 1rem;
    border-radius: 10px;
    padding: .85rem 1rem;
    font-size: .92rem;
}
.alert-error { color: var(--danger); background: var(--danger-bg); border: 1px solid #f0b5ae; }
.alert-success { color: var(--success); background: var(--success-bg); border: 1px solid #a8ddc4; }
.alert-warning { color: var(--warning); background: var(--warning-bg); border: 1px solid #ead19e; }

.workspace-heading { padding: 1.25rem 1.25rem 0; }
.toolbar {
    justify-content: space-between;
    padding: .85rem 1.25rem;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    background: #fbfcfe;
}

.table-wrap { overflow: auto; max-height: 68vh; }
.metadata-table { width: 100%; border-collapse: collapse; min-width: 1180px; }
.metadata-table th {
    position: sticky;
    top: 0;
    z-index: 4;
    text-align: left;
    padding: .75rem;
    background: #f5f8fc;
    border-bottom: 1px solid var(--line);
    color: #475467;
    font-size: .78rem;
    text-transform: uppercase;
    letter-spacing: .04em;
}
.metadata-table td {
    vertical-align: top;
    padding: .8rem;
    border-bottom: 1px solid #e8edf4;
    background: #fff;
}
.metadata-table tr:hover td { background: #fcfdff; }
.select-col { width: 42px; }
.product-col { width: 250px; }
.status-col { width: 300px; }

.product-name { font-weight: 800; line-height: 1.3; }
.product-meta { margin-top: .3rem; color: var(--muted); font-size: .78rem; }
.current-value {
    min-height: 2.4rem;
    margin-bottom: .55rem;
    padding: .55rem .65rem;
    border-radius: 8px;
    background: #f6f8fb;
    color: #596579;
    font-size: .8rem;
    line-height: 1.35;
}
.current-value.empty { color: #98a2b3; font-style: italic; }
.editor-wrap { position: relative; }
.editor-wrap input, .editor-wrap textarea { padding-bottom: 1.8rem; }
.editor-wrap textarea { min-height: 96px; }
.char-count {
    position: absolute;
    right: .55rem;
    bottom: .45rem;
    color: var(--muted);
    font-size: .72rem;
    background: rgba(255,255,255,.88);
    padding-left: .3rem;
}
.char-count.warning { color: var(--warning); font-weight: 800; }
.char-count.good { color: var(--success); font-weight: 800; }

.row-status {
    display: inline-flex;
    border-radius: 999px;
    padding: .35rem .55rem;
    font-size: .75rem;
    font-weight: 800;
    background: #eef2f6;
    color: #475467;
}
.row-status.generating { background: #eaf2ff; color: #245c9f; }
.row-status.generated, .row-status.saved { background: var(--success-bg); color: var(--success); }
.row-status.error { background: var(--danger-bg); color: var(--danger); }
.row-status.skipped { background: var(--warning-bg); color: var(--warning); }
.row-error-detail {
    margin-top: .55rem;
    max-width: 285px;
    color: var(--danger);
    font-size: .76rem;
    line-height: 1.4;
    overflow-wrap: anywhere;
}

.progress-wrap { display: flex; align-items: center; gap: .6rem; min-width: 250px; }
.progress-bar { height: 9px; flex: 1; border-radius: 999px; background: #e3e9f1; overflow: hidden; }
.progress-bar span { display: block; height: 100%; width: 0; background: var(--primary); transition: width .2s; }
.progress-wrap span { font-size: .8rem; color: var(--muted); }

.footer {
    justify-content: space-between;
    width: min(1600px, calc(100% - 2rem));
    margin: 0 auto 1.5rem;
    color: var(--muted);
    font-size: .8rem;
}

.muted { color: var(--muted); }
.hidden { display: none !important; }

@media (max-width: 900px) {
    .topbar, .panel-heading, .toolbar, .footer { align-items: stretch; flex-direction: column; }
    .topbar-actions, .toolbar-actions { flex-wrap: wrap; }
    .form-grid { grid-template-columns: 1fr; }
    .field-wide { grid-column: auto; }
    .progress-wrap { width: 100%; }
}

.api-key-panel {
    padding: 1rem 1.25rem;
}
.api-key-panel summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    cursor: pointer;
    list-style: none;
}
.api-key-panel summary::-webkit-details-marker { display: none; }
.api-key-panel[open] summary { margin-bottom: 1rem; }
.api-key-form {
    display: grid;
    grid-template-columns: minmax(260px, 1fr) auto;
    align-items: end;
    gap: .8rem;
}
.api-key-form .field-wide { grid-column: auto; }
.api-key-delete { margin-top: .75rem; }
@media (max-width: 720px) {
    .api-key-form { grid-template-columns: 1fr; }
}