:root { color-scheme: light; font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: #172033; background: #f4f7fb; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; }
.shell { width: min(760px, calc(100% - 32px)); margin: 0 auto; padding: 28px 0 48px; }
header { display: flex; align-items: center; gap: 14px; margin-bottom: 20px; }
.logo { width: 48px; height: 48px; flex: 0 0 48px; }
.logo svg { width: 100%; height: 100%; }
.logo circle { fill: #229ed9; }
.logo path { fill: #fff; }
h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 2px; font-size: 24px; }
h2 { margin-bottom: 6px; font-size: 18px; }
h3 { margin: 0 0 10px; font-size: 16px; }
p { color: #64748b; margin-bottom: 16px; }
header p { margin: 0; font-size: 14px; }
.badge { margin-left: auto; padding: 7px 11px; border-radius: 999px; font-size: 13px; font-weight: 700; background: #dcfce7; color: #15803d; white-space: nowrap; }
.badge.muted { background: #e8edf4; color: #64748b; }
.card { padding: 22px; margin-bottom: 14px; border: 1px solid #e1e8f2; border-radius: 14px; background: #fff; box-shadow: 0 6px 20px rgba(27, 47, 79, .05); }
.section-title { display: flex; align-items: start; justify-content: space-between; gap: 16px; }
.section-title p { margin-bottom: 0; }
label { display: grid; gap: 7px; font-size: 13px; font-weight: 650; color: #475569; }
input, textarea { width: 100%; border: 1px solid #cbd5e1; border-radius: 9px; padding: 11px 12px; font: inherit; color: #172033; background: #fff; outline: none; }
input:focus, textarea:focus { border-color: #229ed9; box-shadow: 0 0 0 3px rgba(34, 158, 217, .12); }
textarea { resize: vertical; }
button { border: 0; border-radius: 9px; padding: 11px 16px; font: inherit; font-weight: 700; cursor: pointer; }
button:disabled { opacity: .55; cursor: wait; }
.primary { color: #fff; background: #229ed9; }
.primary:hover:not(:disabled) { background: #168ac2; }
.danger { color: #b42318; background: #fee4e2; }
.small { padding: 8px 11px; font-size: 13px; }
.form-row { display: grid; grid-template-columns: 1fr auto; align-items: end; gap: 10px; }
.qr-panel { display: grid; grid-template-columns: 280px 1fr; align-items: center; gap: 22px; margin-top: 18px; }
.qr-panel img { width: 280px; height: 280px; border: 1px solid #e1e8f2; border-radius: 12px; background: #fff; }
.qr-panel ol { margin: 0 0 16px; padding-left: 20px; color: #475569; line-height: 1.7; }
.mobile-link { color: #168ac2; font-weight: 700; text-decoration: none; }
#startForm { display: grid; gap: 13px; }
.notice { margin-bottom: 14px; padding: 12px 14px; border-radius: 10px; color: #92400e; background: #fef3c7; border: 1px solid #fde68a; }
.notice.success { color: #166534; background: #dcfce7; border-color: #bbf7d0; }
.hidden { display: none !important; }
@media (max-width: 600px) { .shell { width: min(100% - 20px, 760px); padding-top: 18px; } header { align-items: flex-start; } .badge { position: absolute; right: 10px; top: 78px; } .form-row, .qr-panel { grid-template-columns: 1fr; } .qr-panel img { width: min(280px, 100%); height: auto; justify-self: center; } .card { padding: 18px; } }