:root {
    color-scheme: light;
    --ink: #18232d;
    --muted: #66737e;
    --line: #dce2e7;
    --surface: #ffffff;
    --canvas: #f3f6f8;
    --primary: #17675f;
    --primary-dark: #0e4f49;
    --danger-bg: #fff1f1;
    --danger: #9b2525;
}

* { box-sizing: border-box; }
body { margin: 0; color: var(--ink); background: var(--canvas); font: 15px/1.5 Arial, sans-serif; }
button, input { font: inherit; }
a { color: var(--primary); }
.auth-page { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.auth-card { width: min(100%, 410px); padding: 36px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); box-shadow: 0 12px 32px rgb(24 35 45 / 8%); }
.brand-mark { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 10px; background: var(--primary); color: white; font-size: 22px; font-weight: 700; }
.eyebrow { margin: 20px 0 4px; color: var(--primary); font-size: 12px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
h1 { margin: 0 0 8px; font-size: clamp(26px, 4vw, 36px); line-height: 1.2; }
h2 { font-size: 18px; }
.muted { margin: 0 0 24px; color: var(--muted); }
label { display: block; margin: 16px 0 6px; font-weight: 700; }
input { width: 100%; padding: 11px 12px; border: 1px solid #b9c4cc; border-radius: 8px; background: white; }
input:focus { outline: 3px solid rgb(23 103 95 / 16%); border-color: var(--primary); }
button { margin-top: 22px; padding: 11px 18px; border: 0; border-radius: 8px; color: white; background: var(--primary); font-weight: 700; cursor: pointer; }
button:hover { background: var(--primary-dark); }
.alert { margin: 18px 0; padding: 12px; border: 1px solid #e8bcbc; border-radius: 8px; color: var(--danger); background: var(--danger-bg); }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 68px; padding: 0 32px; border-bottom: 1px solid var(--line); background: white; }
.topbar span { margin-left: 10px; color: var(--muted); font-size: 13px; }
.topbar form, .topbar button { margin: 0; }
.button-secondary { color: var(--ink); background: #edf1f3; }
.page-shell { width: min(100% - 40px, 980px); margin: 72px auto; }
.lead { max-width: 680px; color: var(--muted); font-size: 18px; }
.status-panel { max-width: 680px; margin-top: 34px; padding: 22px 26px; border: 1px solid var(--line); border-radius: 12px; background: white; }
.status-panel h2 { margin-top: 0; }
@media (max-width: 560px) { .auth-card { padding: 26px 22px; } .topbar { padding: 0 20px; } .topbar span { display: none; } }