:root {
  --bg: #f6f7f2;
  --surface: #ffffff;
  --text: #1f2a2a;
  --muted: #67736f;
  --line: #dce4df;
  --primary: #1f7a72;
  --primary-dark: #155d57;
  --danger: #d95745;
  --shadow: 0 12px 30px rgba(31, 42, 42, 0.08);
  font-family: "Segoe UI", Tahoma, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% -10%, rgba(31, 122, 114, 0.16), transparent 46%),
    radial-gradient(circle at 92% 108%, rgba(31, 122, 114, 0.1), transparent 42%),
    var(--bg);
  color: var(--text);
}

button,
input {
  font: inherit;
}

.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px 16px;
}

.login-card {
  width: min(420px, 100%);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow);
  padding: 32px 28px 24px;
}

.login-head {
  text-align: center;
  margin-bottom: 22px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  margin: 0 auto 14px;
  border-radius: 18px;
  background: var(--primary);
  color: #fff;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 1px;
}

.login-head h1 {
  margin: 0 0 6px;
  font-size: 22px;
  letter-spacing: -0.2px;
}

.login-head p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.login-notice {
  margin: 0 0 18px;
  padding: 11px 14px;
  border-radius: 12px;
  font-size: 14px;
  line-height: 1.5;
  border: 1px solid transparent;
}

.login-notice.error {
  background: rgba(217, 87, 69, 0.09);
  border-color: rgba(217, 87, 69, 0.3);
  color: #96311f;
}

.login-notice.ok {
  background: rgba(31, 122, 114, 0.09);
  border-color: rgba(31, 122, 114, 0.28);
  color: var(--primary-dark);
}

.login-form {
  display: grid;
  gap: 14px;
}

.login-field {
  display: grid;
  gap: 6px;
}

.login-field span {
  font-size: 13px;
  color: var(--muted);
}

.login-field input {
  height: 48px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fbfcfa;
  color: inherit;
}

.login-field input:focus-visible,
.login-submit:focus-visible,
.login-remember input:focus-visible,
.login-foot a:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.login-remember {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 14px;
  color: var(--muted);
}

.login-remember input {
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
}

.login-submit {
  height: 50px;
  margin-top: 4px;
  border: 0;
  border-radius: 12px;
  background: var(--primary);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease;
}

.login-submit:hover {
  background: var(--primary-dark);
}

.login-foot {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 13px;
}

.login-foot a {
  color: var(--primary-dark);
  text-decoration: none;
}

.login-foot a:hover {
  text-decoration: underline;
}

@media (max-width: 420px) {
  .login-card {
    padding: 26px 20px 20px;
  }

  .login-foot {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
  }
}