@charset "UTF-8";
* { box-sizing: border-box; }
body { margin: 0; min-height: 100dvh; display: grid; place-items: center; padding: 24px; font-family: system-ui, "Microsoft JhengHei", sans-serif; background: var(--color-canvas); color: var(--color-text); }
main { width: min(100%, 520px); padding: clamp(24px, 5vw, 48px); border-radius: 30px; background: var(--color-surface); box-shadow: 0 12px 40px var(--color-shadow-dialog); text-align: center; }
.logo { max-width: 100%; width: 270px; height: auto; }
h1 { margin-top: 24px; font-size: clamp(26px, 5vw, 34px); }
p { line-height: 1.7; color: var(--color-text-secondary); }
form { margin-top: 30px; text-align: left; }
label { display: block; font-size: 20px; font-weight: 700; margin-bottom: 10px; }
input { width: 100%; min-height: 64px; padding: 14px 18px; font-size: 24px; border: 2px solid var(--color-border-strong); border-radius: 16px; color: var(--color-text); background: var(--color-surface-soft); }
input:focus { outline: 3px solid var(--color-primary-focus); border-color: var(--color-primary); }
button { width: 100%; min-height: 68px; border: 0; border-radius: 18px; font-size: 24px; font-weight: 700; color: var(--color-surface); background: var(--color-primary); cursor: pointer; }
button:hover { background: var(--color-primary-hover); }
.error { min-height: 1.7em; color: var(--color-danger-ink); }
.hint { margin-top: 24px; font-size: 14px; color: var(--color-text-muted); }
.back { display: inline-block; margin-top: 24px; padding: 14px 24px; border-radius: 14px; background: var(--color-primary-soft); color: var(--color-primary-ink); text-decoration: none; font-size: 20px; font-weight: 700; }