:root {
    --bg: #f6f7fb;
    --panel: #ffffff;
    --text: #171923;
    --muted: #687083;
    --line: #e5e8ef;
    --primary: #174ea6;
    --primary-dark: #0f3674;
    --danger: #b42318;
    --success: #067647;
    --shadow: 0 16px 50px rgba(23, 30, 46, .08);
}

* { 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);
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.topbar {
    min-height: 68px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    background: rgba(255,255,255,.9);
    border-bottom: 1px solid var(--line);
    position: sticky;
    top: 0;
    z-index: 5;
    backdrop-filter: blur(12px);
}
.brand { font-weight: 800; }
.topbar nav { display: flex; align-items: center; gap: 18px; color: var(--muted); }
.shell { width: min(1180px, calc(100% - 32px)); margin: 32px auto 60px; }

.login-page {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
    background:
        radial-gradient(circle at top left, rgba(23,78,166,.14), transparent 34%),
        linear-gradient(135deg, #f8fafc, #eef2f7);
}
.login-card {
    width: min(940px, 100%);
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
    overflow: hidden;
}
.login-copy { padding: 54px; background: #10233f; color: #fff; }
.login-copy p { color: rgba(255,255,255,.78); font-size: 1.05rem; line-height: 1.7; }
.login-copy h1 { font-size: clamp(2rem, 4vw, 3.5rem); line-height: 1; margin: 10px 0 18px; }
.form-card { padding: 44px; display: grid; gap: 18px; align-content: center; }

.page-head, .client-hero {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    margin-bottom: 24px;
}
.page-head h1, .client-hero h1 { margin: 4px 0 0; font-size: 2rem; }
.eyebrow {
    margin: 0;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--primary);
    font-weight: 800;
    font-size: .75rem;
}
.client-hero {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 22px;
    box-shadow: var(--shadow);
}
.client-hero img { width: 90px; height: 90px; object-fit: contain; border-radius: 8px; border: 1px solid var(--line); }

.grid.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; margin-bottom: 18px; }
.stat {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 16px;
    box-shadow: var(--shadow);
    display: grid;
    gap: 8px;
}
.stat span { color: var(--muted); font-weight: 750; }
.stat strong { font-size: 1.5rem; }
.latest-panel { padding: 18px; margin-bottom: 18px; }
.latest-panel h2 { margin: 0 0 12px; font-size: 1rem; }
.latest-panel ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.latest-panel li { display: flex; justify-content: space-between; gap: 12px; color: var(--text); }
.latest-panel span { color: var(--muted); }
.card, .panel, .table-wrap {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
}
.card { padding: 18px; display: grid; gap: 18px; }
.card h2 { margin: 0; font-size: 1.15rem; }
.card p { margin: 4px 0 0; color: var(--muted); }
.client-row { display: flex; align-items: center; gap: 14px; }
.logo-sm { width: 54px; height: 54px; object-fit: contain; border-radius: 8px; border: 1px solid var(--line); }

.actions, .row-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.actions.end { justify-content: flex-end; }
.btn {
    border: 1px solid var(--line);
    background: #fff;
    color: var(--text);
    padding: 10px 14px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 750;
    font-size: .93rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
}
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-dark); }
.btn.danger { color: var(--danger); border-color: #ffd7d3; }

label { display: grid; gap: 7px; color: var(--muted); font-weight: 700; }
input, textarea, select {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 12px 13px;
    font: inherit;
    color: var(--text);
    background: #fff;
}
textarea { resize: vertical; }
input:focus, textarea:focus { outline: 3px solid rgba(23,78,166,.14); border-color: var(--primary); }

.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; padding: 22px; }
.filters { display: grid; grid-template-columns: 1.2fr 1fr auto auto; gap: 12px; padding: 14px; margin-bottom: 16px; align-items: end; }
.span-2 { grid-column: 1 / -1; }
.product-form { padding: 0; overflow: hidden; }
.steps { display: flex; gap: 8px; padding: 18px; border-bottom: 1px solid var(--line); overflow-x: auto; }
.step { border: 1px solid var(--line); background: #fff; border-radius: 8px; padding: 10px 14px; cursor: pointer; font-weight: 800; white-space: nowrap; }
.step.is-active { background: var(--primary); color: #fff; border-color: var(--primary); }
.step-panel { border: 0; margin: 0; display: none; }
.step-panel.is-active { display: grid; }
.form-nav { display: flex; justify-content: flex-end; gap: 10px; padding: 18px; border-top: 1px solid var(--line); }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; min-width: 760px; }
th, td { padding: 15px; border-bottom: 1px solid var(--line); text-align: left; }
th { color: var(--muted); font-size: .82rem; text-transform: uppercase; letter-spacing: .04em; }
tr:last-child td { border-bottom: 0; }
.empty { padding: 26px; color: var(--muted); text-align: center; }

.alert {
    padding: 13px 16px;
    border-radius: 8px;
    margin-bottom: 18px;
    border: 1px solid var(--line);
    background: #fff;
}
.alert-success { border-color: #abefc6; color: var(--success); background: #f6fef9; }
.alert-error { border-color: #fecaca; color: var(--danger); background: #fff7f7; }
.alert.floating { position: fixed; top: 18px; left: 50%; transform: translateX(-50%); z-index: 10; width: min(520px, calc(100% - 32px)); }

.preview-strip { display: flex; flex-wrap: wrap; gap: 12px; min-height: 12px; }
.preview-strip img {
    width: 118px;
    height: 118px;
    object-fit: cover;
    border-radius: 8px;
    border: 1px solid var(--line);
    background: #fff;
}
.preview-strip figure { margin: 0; display: grid; gap: 8px; }
.image-controls { display: flex; flex-wrap: wrap; gap: 6px; }
.upload-drop {
    border: 1px dashed var(--primary);
    border-radius: 8px;
    padding: 14px;
    background: #f8fbff;
    cursor: pointer;
}
.upload-drop strong {
    color: var(--text);
    font-size: .95rem;
}
.upload-drop.is-dragging {
    background: #eaf2ff;
    outline: 3px solid rgba(23,78,166,.14);
}
.current-images h2 { font-size: 1rem; margin: 0 0 12px; }
.password-help { color: var(--muted); font-size: .92rem; line-height: 1.5; }
.product-sheet {
    display: grid;
    grid-template-columns: minmax(280px, .8fr) 1.2fr;
    gap: 20px;
}
.product-media, .product-details, .product-copy {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
    padding: 18px;
}
.product-main-image, .image-placeholder {
    width: 100%;
    aspect-ratio: 1;
    border-radius: 8px;
    border: 1px solid var(--line);
    object-fit: cover;
    background: #f8fafc;
}
.image-placeholder {
    display: grid;
    place-items: center;
    color: var(--muted);
    font-weight: 700;
}
.product-details dl {
    display: grid;
    grid-template-columns: 170px 1fr;
    gap: 12px 16px;
    margin: 0;
}
.product-details dt { color: var(--muted); font-weight: 800; }
.product-details dd { margin: 0; }
.product-details h2 { font-size: 1rem; margin: 18px 0 12px; }
.badge-group { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.badge {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    background: #eaf2ff;
    color: var(--primary-dark);
    padding: 6px 10px;
    font-size: .85rem;
    font-weight: 800;
}
.badge.muted {
    background: #f1f3f7;
    color: var(--muted);
}
.product-copy { grid-column: 1 / -1; }
.product-copy h2 { font-size: 1rem; margin: 0 0 8px; }
.product-copy p { color: var(--muted); line-height: 1.7; margin: 0 0 18px; }
.category-picker {
    display: grid;
    gap: 8px;
    color: var(--muted);
    font-weight: 700;
}
.category-tree {
    display: grid;
    gap: 8px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 12px;
    background: #fff;
}
.category-node {
    display: flex;
    align-items: center;
    gap: 6px;
    padding-left: calc(var(--level) * 18px);
}
.category-node.is-hidden { display: none; }
.category-node label {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text);
    font-weight: 650;
}
.category-toggle {
    width: 24px;
    height: 24px;
    border: 0;
    background: transparent;
    cursor: pointer;
    color: var(--primary);
    font-weight: 900;
}
.category-toggle:disabled { cursor: default; color: transparent; }
.category-tree input {
    width: auto;
}
.category-tree p {
    color: var(--muted);
    margin: 0;
}

@media (max-width: 760px) {
    .topbar { padding: 0 16px; }
    .shell { width: min(100% - 24px, 1180px); margin-top: 20px; }
    .login-card { grid-template-columns: 1fr; }
    .login-copy, .form-card { padding: 28px; }
    .page-head, .client-hero { align-items: stretch; flex-direction: column; }
    .client-hero img { width: 72px; height: 72px; }
    .form-grid { grid-template-columns: 1fr; padding: 16px; }
    .span-2 { grid-column: auto; }
    .form-nav { flex-wrap: wrap; }
    .btn { width: 100%; }
    .product-sheet { grid-template-columns: 1fr; }
    .product-details dl { grid-template-columns: 1fr; }
    .filters { grid-template-columns: 1fr; }
}