:root {
  --bg: #dcdcf8;
  --card: #ffffff;
  --primary: #4350dd;
  --primary-dark: #3542c4;
  --text: #1f2333;
  --muted: #6b7280;
  --field: #f3f4f6;
  --line: #e5e7eb;
  --danger: #c93434;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: "Pretendard", -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
  -webkit-font-smoothing: antialiased;
}

.card {
  background: var(--card);
  border-radius: 28px;
  box-shadow: 0 24px 64px rgba(60, 64, 140, 0.14);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  padding: 20px;
  width: min(1080px, 100%);
  min-height: 620px;
}

.form-side { padding: 48px 44px; display: flex; flex-direction: column; justify-content: center; }
.form-side h1 { font-size: 30px; font-weight: 700; text-align: center; margin: 0 0 32px; letter-spacing: -0.5px; }

label { display: block; font-size: 17px; font-weight: 600; margin: 22px 0 10px; }

.field {
  display: flex;
  align-items: center;
  background: var(--field);
  border-radius: 12px;
  border: 2px solid transparent;
  transition: border-color 0.15s, background 0.15s;
}
.field:focus-within { border-color: var(--primary); background: #fff; }
.field input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  font: inherit;
  font-size: 17px;
  padding: 18px 16px;
  outline: none;
  color: var(--text);
}
.field input::placeholder { color: #8a8f99; }
.field .suffix { color: #4b5160; padding-right: 16px; font-size: 15px; white-space: nowrap; }
.eye { border: 0; background: transparent; padding: 0 16px; cursor: pointer; color: #555b66; display: flex; align-items: center; }
.eye svg { width: 24px; height: 24px; }

.primary, .btn {
  display: inline-block;
  border: 0;
  border-radius: 12px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
}
.primary { width: 100%; margin-top: 36px; background: var(--primary); color: #fff; padding: 18px; font-size: 18px; }
.primary:hover { background: var(--primary-dark); }
.primary:disabled { opacity: 0.6; cursor: default; }

.alert { background: #fdecec; color: var(--danger); border-radius: 10px; padding: 12px 14px; font-size: 14px; margin: 0 0 4px; }
.context { background: #eef0ff; color: #3b44b8; border-radius: 10px; padding: 10px 14px; font-size: 14px; margin: 0 0 4px; text-align: center; }
.note { color: var(--muted); font-size: 13px; text-align: center; margin: 22px 0 0; line-height: 1.5; }

.art-side {
  position: relative;
  border-radius: 22px;
  overflow: hidden;
  background: linear-gradient(180deg, #e4ecff 0%, #cddbff 100%);
  min-height: 580px;
}
.art-side img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.brand {
  position: absolute;
  top: 38px;
  left: 0;
  right: 0;
  z-index: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 20px;
  color: #1c2a5a;
}
.brand svg { width: 28px; height: 28px; }
.tag { font-size: 12px; font-weight: 600; color: #3b44b8; background: #fff; border-radius: 999px; padding: 3px 10px; }

/* 포털·안내 화면 */
.sheet {
  background: var(--card);
  border-radius: 28px;
  box-shadow: 0 24px 64px rgba(60, 64, 140, 0.14);
  width: min(880px, 100%);
  padding: 40px 44px;
}
.sheet h1 { font-size: 26px; margin: 0 0 6px; letter-spacing: -0.4px; }
.sheet .sub { color: var(--muted); margin: 0 0 28px; }
.sheet .top { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.tenant { border: 1px solid var(--line); border-radius: 16px; padding: 20px 22px; margin-top: 16px; }
.tenant h2 { font-size: 18px; margin: 0 0 6px; }
.tenant .upn { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 14px; color: #3b44b8; word-break: break-all; }
.tenant .apps { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.btn { background: #eef0ff; color: #3b44b8; padding: 10px 16px; font-size: 15px; }
.btn:hover { background: #e2e5ff; }
.btn.ghost { background: transparent; color: var(--muted); border: 1px solid var(--line); }
.hint { color: var(--muted); font-size: 13px; margin-top: 10px; line-height: 1.5; }
.choices { display: grid; gap: 10px; margin-top: 8px; }
.choice { width: 100%; text-align: left; background: #f7f8fc; border: 1px solid var(--line); border-radius: 14px; padding: 16px 18px; font: inherit; cursor: pointer; }
.choice:hover { border-color: var(--primary); background: #fff; }
.choice strong { display: block; font-size: 16px; }
.choice span { color: var(--muted); font-size: 14px; }

table.log { width: 100%; border-collapse: collapse; font-size: 12px; }
table.log th, table.log td { border-bottom: 1px solid var(--line); padding: 6px 8px; text-align: left; vertical-align: top; }
table.log td pre { margin: 0; white-space: pre-wrap; word-break: break-all; font-size: 11px; }

@media (max-width: 860px) {
  .card { grid-template-columns: 1fr; min-height: auto; }
  .art-side { display: none; }
  .form-side { padding: 32px 18px; }
  .sheet { padding: 28px 20px; }
}

.sheet.wide { width: min(1400px, 100%); }
.portal-note { margin-top: 18px; }
.apps .btn.alt { background: #f5f6fa; color: #4b5160; font-size: 13px; padding: 8px 12px; }