:root {
    --bg: #f6f7f9;
    --card: #fff;
    --line: #e2e5ea;
    --text: #202124;
    --muted: #5f6368;
}
* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: "Segoe UI", "Noto Sans Thai", Tahoma, sans-serif;
    background: var(--bg);
    color: var(--text);
}
.muted { color: var(--muted); }
a { color: #1a73e8; text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- login ---------- */
.login-body {
    display: grid;
    place-items: center;
    min-height: 100vh;
}
.login-card {
    background: var(--card);
    padding: 32px;
    border-radius: 12px;
    box-shadow: 0 4px 24px rgba(0,0,0,.08);
    width: 340px;
}
.login-card h1 { font-size: 20px; margin: 0 0 4px; }
.login-card label { display: block; margin: 16px 0 4px; font-size: 14px; }
.login-card input {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 8px;
    font-size: 15px;
}
.login-card button {
    margin-top: 20px;
    width: 100%;
    padding: 11px;
    border: 0;
    border-radius: 8px;
    background: #1a73e8;
    color: #fff;
    font-size: 15px;
    cursor: pointer;
}
.alert {
    background: #fce8e6;
    color: #d93025;
    padding: 10px;
    border-radius: 8px;
    font-size: 14px;
}

/* ---------- app chrome ---------- */
.topbar {
    background: var(--card);
    border-bottom: 1px solid var(--line);
    padding: 12px 20px;
}
.topbar .brand { font-weight: 700; }
.topbar nav {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: 8px;
}
.topbar nav .spacer { flex: 1; }
.wrap { max-width: 1200px; margin: 20px auto; padding: 0 20px; }
.row { display: flex; align-items: center; }
.gap { gap: 12px; }
select, input, button { font-family: inherit; }
select { padding: 8px; border: 1px solid var(--line); border-radius: 8px; }

/* ---------- hero / summary ---------- */
.hero {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 20px;
    margin: 16px 0;
    flex-wrap: wrap;
    gap: 16px;
}
.countdown .big { font-size: 28px; font-weight: 700; }
.summary { display: flex; gap: 8px; flex-wrap: wrap; }
.pill {
    border: 1px solid var(--c);
    color: var(--c);
    border-radius: 999px;
    padding: 6px 12px;
    font-size: 14px;
    white-space: nowrap;
}

/* ---------- grid ---------- */
.grid {
    width: 100%;
    border-collapse: collapse;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 12px;
    overflow: hidden;
}
.grid th, .grid td {
    text-align: left;
    padding: 10px 12px;
    border-bottom: 1px solid var(--line);
    vertical-align: top;
    font-size: 14px;
}
.grid th { background: #fafbfc; color: var(--muted); font-weight: 600; }
.badge {
    display: inline-block;
    border: 1px solid var(--c);
    color: var(--c);
    border-radius: 6px;
    padding: 2px 8px;
    font-size: 13px;
    white-space: nowrap;
}
.cps { display: flex; flex-wrap: wrap; gap: 6px; }
.cp {
    border-left: 3px solid var(--c);
    background: #fafbfc;
    border-radius: 4px;
    padding: 3px 8px;
    font-size: 13px;
}
.cp small { color: var(--muted); }
.cp-toggle {
    cursor: pointer;
    font-family: inherit;
    text-align: left;
    transition: filter .1s;
}
.cp-toggle:hover { filter: brightness(0.95); box-shadow: 0 0 0 2px var(--c) inset; }

/* ---------- forms / cards ---------- */
h1 { font-size: 22px; }
h2 { font-size: 17px; margin-top: 0; }
.card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 20px;
    margin: 16px 0;
}
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}
.form-grid label { display: flex; flex-direction: column; gap: 4px; font-size: 14px; }
.form-grid .col-2 { grid-column: 1 / -1; }
.form-grid input, .form-grid select, .form-grid textarea {
    padding: 9px;
    border: 1px solid var(--line);
    border-radius: 8px;
    font-size: 15px;
    font-family: inherit;
}
.actions { display: flex; gap: 10px; align-items: center; }
button {
    padding: 10px 18px;
    border: 0;
    border-radius: 8px;
    background: #1a73e8;
    color: #fff;
    font-size: 15px;
    cursor: pointer;
}
.btn-ghost {
    background: transparent;
    color: #1a73e8;
    border: 1px solid var(--line);
    padding: 8px 14px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
}
.notice {
    background: #e6f4ea;
    color: #188038;
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 14px;
    margin: 8px 0;
}
.row.between { justify-content: space-between; }
.cp-row { margin-top: 8px; }
.cp-row input[type=text] { flex: 1; }
.cp-row .offset { width: 90px; }
.dprefix { color: var(--muted); }

/* ---------- sku_view ---------- */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.wrap-flex, .row.wrap { flex-wrap: wrap; }
.mt { margin-top: 12px; }
.mini { width: 100%; border-collapse: collapse; }
.mini td { padding: 6px 8px; border-bottom: 1px solid var(--line); font-size: 14px; }
.mini form { margin: 0; }
.btn-link {
    background: none;
    border: 0;
    color: #d93025;
    cursor: pointer;
    padding: 0;
    font-size: 13px;
}
.cp-status {
    padding: 5px 8px;
    border: 1px solid var(--line);
    border-radius: 6px;
    font-size: 13px;
    background: #fff;
    font-family: inherit;
}
.log-list { list-style: none; padding: 0; margin: 12px 0 0; }
.log-list li {
    padding: 10px 0;
    border-bottom: 1px solid var(--line);
    font-size: 14px;
}
.offset { width: 90px; padding: 9px; border: 1px solid var(--line); border-radius: 8px; }
@media (max-width: 800px) {
    .two-col, .form-grid { grid-template-columns: 1fr; }
}

/* ---------- dashboard interactions ---------- */
.grid tr.clickable { cursor: pointer; }
.grid tr.clickable:hover td { background: #f1f6ff; }
.nowrap { white-space: nowrap; }
.btn-primary-link {
    background: #1a73e8;
    color: #fff;
    padding: 9px 16px;
    border-radius: 8px;
    font-size: 14px;
    white-space: nowrap;
}
.btn-primary-link:hover { text-decoration: none; background: #1666d0; }