:root {
  --bg: #000000;
  --panel: #0d0d0d;
  --line: #2a2a2a;
  --text: #e8e6e3;
  --muted: #8f8a84;
  --accent: #e10600;
  --error: #ff6b6b;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
}

body.login-page {
  min-height: 100vh;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--text);
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  display: grid;
  place-items: center;
  padding: 2rem 1.1rem;
}

.login-back {
  position: fixed;
  top: 1.2rem;
  left: 1.2rem;
  color: var(--muted);
  text-decoration: none;
  font-family: Syne, sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.login-back:hover,
.login-back:focus-visible {
  color: var(--text);
  outline: none;
}

.login-card {
  width: min(100%, 380px);
  padding: 1.75rem 1.5rem 1.6rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(180deg, #121212 0%, var(--panel) 100%);
}

.login-title {
  margin: 0;
  font-family: Syne, sans-serif;
  font-size: 1.55rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.login-lead {
  margin: 0.35rem 0 1.35rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.login-form {
  display: grid;
  gap: 0.45rem;
}

.login-label {
  margin-top: 0.45rem;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

.login-input {
  width: 100%;
  min-height: 46px;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #080808;
  color: var(--text);
  font: inherit;
}

.login-input:focus {
  outline: 2px solid rgba(225, 6, 0, 0.45);
  outline-offset: 1px;
  border-color: #5a5a5a;
}

.login-error {
  margin: 0.55rem 0 0;
  color: var(--error);
  font-size: 0.92rem;
}

.login-submit {
  margin-top: 1rem;
  min-height: 48px;
  border: 0;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  font-family: Syne, sans-serif;
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
}

.login-submit:hover,
.login-submit:focus-visible {
  filter: brightness(1.08);
  outline: none;
}

.login-submit:disabled {
  opacity: 0.65;
  cursor: wait;
}