:root {
  --bg: #ffffff;
  --bg-soft: #f7f8fa;
  --line: #e6e8eb;
  --text: #121417;
  --text-soft: #5c6570;
  --danger: #b42318;
  --font: "Manrope", sans-serif;
  --display: "Space Grotesk", sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
}

.bg-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(18, 20, 23, 0.05), transparent 55%),
    linear-gradient(to right, rgba(18, 20, 23, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(18, 20, 23, 0.035) 1px, transparent 1px);
  background-size: auto, 48px 48px, 48px 48px;
}

.login-wrap {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1.5rem;
}

.login-card {
  width: min(400px, 100%);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: 0 18px 50px rgba(18, 20, 23, 0.08);
  padding: 1.6rem 1.45rem 1.4rem;
}

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

.brand-mark {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: var(--text);
  color: #fff;
}

.login-brand h1 {
  margin: 0;
  font-family: var(--display);
  font-size: 1.25rem;
  letter-spacing: -0.03em;
}

.login-brand p {
  margin: 0.15rem 0 0;
  color: var(--text-soft);
  font-size: 0.9rem;
}

label {
  display: block;
  margin: 0.75rem 0 0.4rem;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text-soft);
}

input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.85rem 0.95rem;
  font: inherit;
  outline: none;
}

input:focus {
  border-color: #9aa3ad;
  box-shadow: 0 0 0 4px rgba(18, 20, 23, 0.05);
}

.login-error {
  margin: 0.85rem 0 0;
  color: var(--danger);
  font-size: 0.9rem;
  font-weight: 600;
}

.login-hint {
  margin: 0.75rem 0 0;
  color: var(--text-soft);
  font-size: 0.82rem;
  line-height: 1.4;
}

.login-error.is-hidden {
  display: none;
}

.login-btn {
  width: 100%;
  margin-top: 1.1rem;
  border: 0;
  border-radius: 12px;
  padding: 0.9rem 1rem;
  background: var(--text);
  color: #fff;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.login-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(18, 20, 23, 0.18);
}

.login-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}