* { box-sizing: border-box; }

body {
  min-height: 100vh;
  margin: 0;
  display: grid;
  place-items: center;
  background: #f8fafc;
  color: #1f2937;
  font-family: Arial, sans-serif;
}

.recovery-shell {
  width: min(440px, calc(100vw - 32px));
  padding: 28px;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 18px 45px rgba(15, 23, 42, .08);
}

h1 { margin: 0; color: #0f766e; font-size: 24px; }
.subtitle, .note { color: #64748b; font-size: 14px; line-height: 1.5; }
label { display: block; margin: 16px 0 6px; color: #475569; font-size: 13px; font-weight: 600; }
input { width: 100%; min-height: 42px; padding: 9px 12px; border: 1px solid #cbd5e1; border-radius: 8px; font: inherit; }
input:focus { border-color: #0f766e; outline: none; box-shadow: 0 0 0 3px rgba(15, 118, 110, .12); }
button { width: 100%; min-height: 42px; margin-top: 18px; border: 0; border-radius: 8px; background: #0f766e; color: #fff; font: inherit; font-weight: 700; cursor: pointer; }
button:disabled { opacity: .65; cursor: not-allowed; }
.message { display: none; margin-top: 16px; padding: 10px 12px; border-radius: 8px; font-size: 13px; line-height: 1.4; }
.message.visible { display: block; }
.message.success { border: 1px solid #a7f3d0; background: #ecfdf5; color: #047857; }
.message.error { border: 1px solid #fecaca; background: #fef2f2; color: #b91c1c; }
.back-link { display: block; margin-top: 18px; color: #0f766e; font-size: 13px; text-align: center; }