:root {
  --ink: #1e252d;
  --muted: #65717e;
  --line: #d8e0e7;
  --navy: #193653;
  --blue: #2f80ed;
  --green: #2f7a69;
  --red: #b4233b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 12%, rgba(47, 128, 237, 0.22), transparent 32%),
    radial-gradient(circle at 88% 80%, rgba(47, 122, 105, 0.2), transparent 35%),
    #eaf0f5;
  font-family: ui-sans-serif, "Avenir Next", "Segoe UI", sans-serif;
}

.login-shell {
  width: min(980px, calc(100% - 32px));
  min-height: 100vh;
  margin: auto;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: clamp(40px, 8vw, 100px);
  padding: 48px 0;
}

.login-brand { color: var(--navy); }

.brand-mark {
  width: 66px;
  height: 46px;
  margin-bottom: 25px;
  border: 3px solid currentColor;
  border-radius: 9px;
  position: relative;
  transform: rotate(-5deg);
}

.brand-mark::before {
  content: "";
  position: absolute;
  left: 8px;
  right: 8px;
  top: 11px;
  height: 7px;
  border-radius: 99px;
  background: currentColor;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.login-brand h1 {
  margin: 0;
  font-size: clamp(3rem, 7vw, 5.6rem);
  line-height: 0.93;
  letter-spacing: -0.06em;
}

.login-brand > p:last-child {
  max-width: 520px;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.65;
}

.login-card {
  padding: clamp(26px, 5vw, 44px);
  border: 1px solid rgba(216, 224, 231, 0.9);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 24px 65px rgba(25, 54, 83, 0.15);
}

.login-card h2 {
  margin: 0;
  font-size: 2rem;
}

.intro {
  margin: 8px 0 24px;
  color: var(--muted);
  line-height: 1.55;
}

form { display: grid; gap: 17px; }

label { display: grid; gap: 7px; }

label span { font-weight: 800; }

input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 13px;
  color: var(--ink);
  background: #fff;
  font: inherit;
}

input:focus {
  border-color: var(--blue);
  outline: 3px solid rgba(47, 128, 237, 0.15);
}

button {
  border: 0;
  border-radius: 8px;
  padding: 13px 16px;
  color: #fff;
  background: linear-gradient(120deg, var(--navy), var(--blue));
  cursor: pointer;
  font: inherit;
  font-weight: 900;
}

button:disabled { cursor: not-allowed; opacity: 0.45; }

.notice {
  margin: 0 0 18px;
  border-radius: 7px;
  padding: 11px 12px;
  line-height: 1.4;
}

.notice.error { color: var(--red); background: #fff0f2; }

.login-card small {
  display: block;
  margin-top: 24px;
  color: var(--muted);
}

@media (max-width: 760px) {
  .login-shell { grid-template-columns: 1fr; gap: 32px; }
  .login-brand h1 { font-size: clamp(2.8rem, 14vw, 4.5rem); }
  .login-brand > p:last-child { display: none; }
}