:root {
  color-scheme: dark;
  --bg: #0d1116;
  --panel: #151b22;
  --ink: #f5f3ef;
  --muted: #9aa4ad;
  --accent: #f2a64b;
  --accent-strong: #f5b56a;
  --accent-cool: #59b1ad;
  --border: #2a323b;
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.5);
  --radius: 18px;
  --font-body: "IBM Plex Sans", "Candara", "Trebuchet MS", sans-serif;
  --font-display: "IBM Plex Sans", "Candara", "Trebuchet MS", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background-color: var(--bg);
  background:
    radial-gradient(circle at 12% 18%, rgba(89, 177, 173, 0.18), transparent 55%),
    radial-gradient(circle at 86% 16%, rgba(242, 166, 75, 0.2), transparent 55%),
    linear-gradient(160deg, #0a0e12 0%, #0f151d 45%, #141b24 100%);
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(120deg, rgba(255, 255, 255, 0.04) 0%, transparent 45%),
    linear-gradient(300deg, rgba(255, 255, 255, 0.03) 0%, transparent 45%);
  pointer-events: none;
  z-index: 0;
}

.screen {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  width: min(440px, 100%);
  background: var(--panel);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  padding: 28px;
  display: grid;
  gap: 18px;
}

.brand {
  display: flex;
  gap: 16px;
  align-items: center;
}

.mark {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: linear-gradient(140deg, var(--accent), #f7c27f);
  color: #281606;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.kicker {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.24em;
  font-size: 11px;
  color: var(--muted);
}

h1 {
  margin: 4px 0 0;
  font-family: var(--font-display);
  font-size: 28px;
}

.hint {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.form {
  display: grid;
  gap: 14px;
}

.field {
  display: grid;
  gap: 8px;
}

.field span {
  text-transform: uppercase;
  letter-spacing: 0.24em;
  font-size: 11px;
  color: var(--muted);
}

input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #0f151d;
  color: var(--ink);
  font-size: 16px;
}

input:focus {
  outline: 2px solid rgba(242, 166, 75, 0.4);
  border-color: var(--accent);
}

.btn {
  padding: 12px 16px;
  border-radius: 12px;
  border: none;
  background: linear-gradient(120deg, var(--accent), var(--accent-strong));
  color: #231b10;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.error {
  min-height: 20px;
  margin: 0;
  color: #f08c8c;
  font-size: 13px;
}

@media (hover: hover) and (pointer: fine) {
  .btn:hover {
    filter: brightness(1.05);
  }

  input:hover {
    border-color: #3a4652;
  }
}