:root {
  --bg: #f4f6fb;
  --card: #ffffff;
  --ink: #172033;
  --muted: #5e697f;
  --accent: #1d4ed8;
  --accent-strong: #1e40af;
  --danger: #bf123f;
  --ring: rgba(29, 78, 216, 0.25);
  --shadow: 0 24px 54px rgba(23, 32, 51, 0.18);
  --radius-lg: 22px;
  --radius-md: 12px;
}

* { box-sizing: border-box; }

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: "Noto Sans KR", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(980px 560px at 88% -10%, rgba(115, 157, 255, 0.25) 0%, transparent 62%),
    radial-gradient(860px 620px at -15% 95%, rgba(180, 196, 233, 0.36) 0%, transparent 66%),
    linear-gradient(160deg, #edf2fb 0%, #f7f9fe 55%, #fbfcff 100%);
}

.scene {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px 14px;
}

.wrap {
  width: min(100%, 980px);
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  background: var(--card);
}

.hero {
  padding: 42px 36px;
  color: #eff5ff;
  background: linear-gradient(160deg, #1e3a8a 0%, #1d4ed8 45%, #2563eb 100%);
  position: relative;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    -24deg,
    rgba(255, 255, 255, 0.05) 0,
    rgba(255, 255, 255, 0.05) 14px,
    transparent 14px,
    transparent 30px
  );
  pointer-events: none;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(255, 255, 255, 0.16);
  margin-bottom: 18px;
}

.badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #f8c964;
  box-shadow: 0 0 0 5px rgba(248, 201, 100, 0.18);
}

.hero h1 {
  margin: 0;
  line-height: 1.12;
  font-size: clamp(32px, 4vw, 40px);
  letter-spacing: -0.02em;
}

.hero p {
  margin: 14px 0 0;
  max-width: 31ch;
  line-height: 1.62;
  color: rgba(239, 245, 255, 0.92);
  font-size: 15px;
}

.panel {
  padding: 34px 30px 30px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 14px;
  background: linear-gradient(180deg, #ffffff 0%, #f4f7ff 100%);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 2px;
}

.brand img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: #fff;
  object-fit: contain;
  padding: 4px;
  box-shadow: 0 8px 16px rgba(23, 32, 51, 0.14);
}

.brand h2 {
  margin: 0;
  font-size: 21px;
  letter-spacing: -0.01em;
}

.sub {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

form {
  margin-top: 8px;
  display: grid;
  gap: 11px;
}

label {
  display: grid;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: #2b3d69;
}

input {
  width: 100%;
  height: 46px;
  border-radius: var(--radius-md);
  border: 1px solid #d5dff6;
  padding: 0 13px;
  font-size: 15px;
  color: var(--ink);
  background: #fff;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 0 4px var(--ring);
}

.password-wrap { position: relative; }

.toggle-visibility {
  position: absolute;
  right: 9px;
  top: 50%;
  transform: translateY(-50%);
  border: 0;
  border-radius: 9px;
  background: #edf3ff;
  color: #29488c;
  font-size: 12px;
  font-weight: 700;
  padding: 6px 8px;
  cursor: pointer;
}

.btn-login {
  margin-top: 4px;
  width: 100%;
  height: 48px;
  border: 0;
  border-radius: 13px;
  background: linear-gradient(130deg, var(--accent), var(--accent-strong));
  color: #f8fbff;
  font-size: 15px;
  font-weight: 800;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.btn-login:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 22px rgba(30, 64, 175, 0.28);
}

.notice {
  min-height: 18px;
  margin: 2px 0 0;
  color: var(--danger);
  font-size: 12px;
  font-weight: 700;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.notice.show { opacity: 1; }

.caps-lock-notice {
  min-height: 16px;
  margin: 2px 0 0;
  color: #b45309;
  font-size: 12px;
  font-weight: 700;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.caps-lock-notice.show {
  opacity: 1;
}

.foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-top: 2px;
  font-size: 12px;
  color: #67718a;
}

.foot a {
  color: #3157b5;
  text-decoration: none;
  font-weight: 700;
}

.foot a:hover { text-decoration: underline; }

@media (max-width: 900px) {
  .wrap {
    grid-template-columns: 1fr;
    width: min(100%, 560px);
  }

  .hero { padding: 34px 24px 24px; }
  .panel { padding: 26px 20px 22px; }
  .hero h1 { font-size: clamp(30px, 9vw, 42px); }
}