:root {
  --bg: #07090d;
  --card: #121821;
  --line: rgba(120, 150, 190, 0.16);
  --text: #e8edf5;
  --muted: #8b9bb0;
  --teal: #2dd4bf;
  --fail: #f87171;
  --font: "DM Sans", system-ui, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(800px 420px at 20% -10%, rgba(45, 212, 191, 0.12), transparent 55%),
    radial-gradient(600px 360px at 100% 10%, rgba(96, 165, 250, 0.08), transparent 50%),
    var(--bg);
}

.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1.5rem;
}

.login-card {
  width: min(400px, 100%);
  padding: 1.6rem 1.5rem 1.35rem;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(22, 30, 42, 0.96), rgba(12, 16, 23, 0.98));
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

.login-brand {
  display: flex;
  gap: 0.85rem;
  align-items: center;
  margin-bottom: 1.35rem;
}

.mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  color: var(--teal);
  background: rgba(45, 212, 191, 0.12);
  border: 1px solid rgba(45, 212, 191, 0.28);
}

.login-brand h1 {
  margin: 0;
  font-size: 1.25rem;
  letter-spacing: -0.03em;
}

.login-brand p {
  margin: 0.15rem 0 0;
  font-size: 0.78rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 1rem;
}

.input {
  height: 44px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #0a0e14;
  color: var(--text);
  font: inherit;
  padding: 0 0.85rem;
  outline: none;
}

.input:focus {
  border-color: rgba(45, 212, 191, 0.55);
  box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.12);
}

.btn {
  width: 100%;
  height: 44px;
  border: none;
  border-radius: 10px;
  font: inherit;
  font-weight: 650;
  cursor: pointer;
  color: #042f2e;
  background: linear-gradient(180deg, #2dd4bf, #14b8a6);
  box-shadow: 0 8px 24px rgba(45, 212, 191, 0.22);
}

.btn:hover { filter: brightness(1.05); }
.btn:disabled { opacity: 0.55; cursor: wait; }

.msg {
  min-height: 1.25rem;
  margin: 0.75rem 0 0;
  font-size: 0.85rem;
  color: var(--muted);
  text-align: center;
}

.msg.err { color: var(--fail); }
.msg.ok { color: var(--teal); }

.hint {
  margin: 1.1rem 0 0;
  font-size: 0.72rem;
  color: var(--muted);
  text-align: center;
  line-height: 1.45;
}