/* 대학 성과분석 시스템(pubuniv) 로그인 — 왼쪽 남색 소개(로고·지표 그림·기능 3개) + 오른쪽 로그인 카드. 좁은 화면은 위아래로 쌓는다 (떠 있는 라벨 입력칸) */
:root {
  --ul-ink: #18213d;
  --ul-navy: #1b2a6b;
  --ul-navy-deep: #111a47;
  --ul-blue: #3557d4;
  --ul-blue-dark: #2a46b3;
  --ul-amber: #f5b642;
  --ul-bg: #f4f6fb;
  --ul-line: #d9deeb;
  --ul-muted: #66708a;
  --ul-danger: #c8423a;
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
.ul-body {
  min-height: 100vh; font-family: "Pretendard Variable", "Pretendard", -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  color: var(--ul-ink); background: var(--ul-bg); -webkit-font-smoothing: antialiased; word-break: keep-all;
}
.ul-wrap { min-height: 100vh; display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(360px, 1fr); }

/* 왼쪽 소개 */
.ul-intro {
  position: relative; overflow: hidden; display: flex; flex-direction: column; justify-content: center;
  padding: clamp(36px, 6vw, 88px) clamp(28px, 6vw, 96px); color: #fff;
  background:
    radial-gradient(circle at 85% 12%, rgba(245, 182, 66, .18), transparent 32%),
    radial-gradient(circle at 10% 90%, rgba(53, 87, 212, .45), transparent 45%),
    linear-gradient(160deg, var(--ul-navy) 0%, var(--ul-navy-deep) 100%);
}
.ul-intro::after {   /* 옅은 점무늬 */
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(rgba(255, 255, 255, .08) 1px, transparent 1px) 0 0 / 24px 24px;
}
.ul-intro > * { position: relative; z-index: 1; }
.ul-intro, .ul-side { min-width: 0; }
.ul-logo { display: block; height: 64px; width: auto; max-width: 100%; object-fit: contain; object-position: left center; margin-bottom: 28px; }
.ul-eyebrow { margin: 0 0 10px; font-size: 13px; font-weight: 700; letter-spacing: .06em; color: var(--ul-amber); }
.ul-intro h1 { margin: 0 0 14px; font-size: clamp(30px, 3vw, 42px); font-weight: 800; letter-spacing: -.02em; line-height: 1.2; }
.ul-lead { margin: 0; max-width: 34em; font-size: 16px; line-height: 1.7; color: #c9d2f0; }

.ul-chart { width: min(360px, 100%); height: auto; margin: 34px 0 30px; }
.ul-grid line { stroke: rgba(255, 255, 255, .14); stroke-width: 1; }
.ul-bars rect { fill: rgba(255, 255, 255, .16); }
.ul-line { fill: none; stroke: var(--ul-amber); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.ul-dots circle { fill: var(--ul-navy-deep); stroke: var(--ul-amber); stroke-width: 2.5; }

.ul-features { display: grid; gap: 14px; margin: 0; padding: 0; list-style: none; max-width: 440px; }
.ul-features li { display: flex; gap: 14px; align-items: center; }
.ul-ico {
  flex: 0 0 40px; height: 40px; display: grid; place-items: center; border-radius: 11px;
  background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .18);
}
.ul-ico svg { width: 20px; height: 20px; fill: none; stroke: #fff; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.ul-features b { display: block; font-size: 15px; }
.ul-features div span { display: block; margin-top: 2px; font-size: 13px; color: #aeb9e0; }

/* 오른쪽 로그인 */
.ul-side { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 40px 24px 24px; }
.ul-card {
  width: min(400px, 100%); padding: 38px 34px 30px; background: #fff; border-radius: 20px;
  border: 1px solid var(--ul-line); box-shadow: 0 1px 2px rgba(17, 26, 71, .05), 0 24px 48px rgba(17, 26, 71, .10);
}
.ul-card h2 { margin: 0 0 6px; font-size: 24px; font-weight: 800; }
.ul-muted { margin: 0 0 22px; color: var(--ul-muted); font-size: 14px; }

/* 떠 있는 라벨: 비어 있으면 칸 안, 입력·포커스하면 위로 */
.ul-field { position: relative; margin-top: 14px; }
.ul-field input {
  width: 100%; height: 54px; padding: 20px 14px 6px; font: inherit; color: var(--ul-ink);
  border: 1px solid var(--ul-line); border-radius: 12px; background: #fbfcff;
}
.ul-field label {
  position: absolute; left: 15px; top: 17px; font-size: 15px; color: var(--ul-muted);
  pointer-events: none; transition: top .15s, font-size .15s, color .15s;
}
.ul-field input:focus { outline: 2px solid var(--ul-blue); outline-offset: -1px; border-color: transparent; background: #fff; }
.ul-field input:focus + label,
.ul-field input:not(:placeholder-shown) + label { top: 8px; font-size: 11.5px; font-weight: 600; color: var(--ul-blue); }

.ul-btn {
  width: 100%; height: 52px; margin-top: 24px; border: 0; border-radius: 12px; cursor: pointer;
  background: var(--ul-blue); color: #fff; font: inherit; font-size: 16px; font-weight: 700;
}
.ul-btn:hover { background: var(--ul-blue-dark); }
.ul-btn:focus-visible { outline: 3px solid rgba(53, 87, 212, .35); outline-offset: 2px; }
.ul-alert {
  margin: 0 0 6px; padding: 12px 14px; border-radius: 10px; font-size: 14px;
  background: #fdecea; color: var(--ul-danger); border: 1px solid #f5cdc9;
}
.ul-help { margin: 18px 0 0; font-size: 13px; color: var(--ul-muted); text-align: center; }

/* 둘러보기 계정 신청 */
.ul-guest {
  display: block; width: 100%; margin-top: 12px; padding: 11px; border: 1px dashed var(--ul-line); border-radius: 12px;
  background: transparent; color: var(--ul-blue-dark); font: inherit; font-size: 14px; font-weight: 600; cursor: pointer;
}
.ul-guest:hover { background: #eef2fd; border-color: var(--ul-blue); }
.ul-dlg { width: min(460px, calc(100% - 32px)); padding: 0; border: 0; border-radius: 18px; box-shadow: 0 24px 60px rgba(17, 26, 71, .28); color: var(--ul-ink); }
.ul-dlg::backdrop { background: rgba(17, 26, 71, .5); }
.ul-dlg form { padding: 26px 26px 22px; }
.ul-dlg h3 { margin: 0 0 6px; font-size: 19px; font-weight: 800; }
.ul-dlg-q { margin: 0 0 12px; font-size: 15px; }
.ul-dlg-info { margin: 0 0 16px; padding: 12px 14px 12px 30px; border-radius: 10px; background: var(--ul-bg); color: var(--ul-muted); font-size: 13px; line-height: 1.6; }
.ul-agree { display: flex; gap: 10px; align-items: flex-start; padding: 12px 14px; border: 1px solid var(--ul-line); border-radius: 10px; font-size: 13.5px; line-height: 1.55; cursor: pointer; }
.ul-agree input { flex: 0 0 auto; width: 18px; height: 18px; margin: 2px 0 0; accent-color: var(--ul-blue); }
.ul-agree a { color: var(--ul-blue-dark); }
.ul-dlg-btns { display: flex; gap: 8px; margin-top: 18px; }
.ul-dlg-btns .ul-btn { flex: 1; height: 46px; margin: 0; font-size: 15px; }
.ul-dlg-btns .ul-btn:disabled { background: #a7b4e6; cursor: not-allowed; }
.ul-btn-line { flex: 0 0 90px; height: 46px; border: 1px solid var(--ul-line); border-radius: 12px; background: #fff; font: inherit; font-size: 15px; cursor: pointer; }
.ul-copy { margin: 24px 0 0; font-size: 12px; color: #9aa2b8; }

/* 좁은 화면: 위아래로, 소개는 줄인다 */
@media (max-width: 900px) {
  .ul-wrap { grid-template-columns: 1fr; }
  .ul-intro { padding: 36px 16px 40px; }
  .ul-logo { height: 48px; margin-bottom: 18px; }
  .ul-lead br { display: none; }
  .ul-chart { display: none; }
  .ul-features { margin-top: 26px; }
  .ul-side { padding: 0 16px 24px; }
  .ul-card { margin-top: -18px; padding: 28px 20px 24px; }
}
@media (max-width: 420px) {
  .ul-intro h1 { font-size: 26px; }
  .ul-lead { font-size: 14px; }
  .ul-features div span { font-size: 12px; }
}