:root {
  color-scheme: light;
  --ink: #182621;
  --muted: #64736c;
  --line: #dbe5df;
  --canvas: #f3f7f4;
  --surface: #ffffff;
  --accent: #176b49;
  --accent-dark: #0e5136;
  --accent-soft: #e2f2e9;
  --danger: #a33434;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 14% 14%, rgba(226, 242, 233, .9), transparent 33%),
    radial-gradient(circle at 88% 90%, rgba(218, 237, 227, .72), transparent 30%),
    var(--canvas);
  font: 15px/1.5 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.login-page { min-height: 100vh; }

.login-shell {
  display: grid;
  place-items: center;
  width: min(420px, calc(100% - 32px));
  min-height: 100vh;
  margin: 0 auto;
  padding: 42px 0;
}

.login-kicker {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: .76rem;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.login-card {
  width: 100%;
  padding: clamp(28px, 5vw, 46px);
  border: 1px solid rgba(203, 220, 210, .95);
  border-radius: 24px;
  background: rgba(255, 255, 255, .94);
  box-shadow: 0 22px 60px rgba(35, 63, 50, .12);
}
.login-card-mark { display: grid; place-items: center; width: 42px; height: 42px; margin-bottom: 28px; border-radius: 13px; background: var(--accent-soft); color: var(--accent); font-size: 1.35rem; font-weight: 800; }
.login-card h2 { margin: 0; font-size: 2rem; letter-spacing: -.035em; line-height: 1.1; }
.login-help { margin: 9px 0 26px; color: var(--muted); }
.login-form { display: grid; gap: 18px; }
.field { display: grid; gap: 7px; }
.field label { font-size: .88rem; font-weight: 700; }
.field input { width: 100%; padding: 12px 13px; border: 1px solid #bdcbc3; border-radius: 10px; color: var(--ink); background: #fcfefd; font: inherit; transition: border-color .15s ease, box-shadow .15s ease; }
.field input:focus { border-color: var(--accent); outline: 0; box-shadow: 0 0 0 4px rgba(23, 107, 73, .13); }
.login-submit { display: flex; align-items: center; justify-content: space-between; width: 100%; margin-top: 4px; padding: 12px 15px; border: 0; border-radius: 10px; color: #fff; background: var(--accent); font: inherit; font-weight: 750; cursor: pointer; transition: background .15s ease, transform .15s ease, box-shadow .15s ease; }
.login-submit:hover { background: var(--accent-dark); box-shadow: 0 8px 18px rgba(23, 107, 73, .2); }
.login-submit:active { transform: translateY(1px); }
.login-footnote { margin: 24px 0 0; color: var(--muted); font-size: .78rem; text-align: center; }
.form-error { margin: 0 0 18px; padding: 10px 12px; border-radius: 9px; color: var(--danger); background: #faeaea; font-size: .88rem; }

:is(.login-submit, .field input):focus-visible { outline: 3px solid rgba(23, 107, 73, .3); outline-offset: 2px; }

@media (max-width: 700px) {
  .login-shell { padding: 28px 0 38px; }
  .login-card { padding: 28px 22px; border-radius: 19px; }
}