/* 로그인·회원가입·약관 동의 화면(login.html). 사이트 대표색(분홍)과 로고를 그대로 쓴다. */

:root {
  --bg: #F6F7F9; --fg: #161A22; --muted: #5E6573; --line: #E3E6EC; --surface: #fff;
  --accent: #EC4899; --accent-soft: #FDEEF6; --focus: rgba(236, 72, 153, .18);
  --logo: linear-gradient(135deg, #FF6CAB, #E0438F 55%, #A855F7);
}
:root[data-theme="dark"] {
  --bg: #0F1218; --fg: #E7EAF0; --muted: #98A0AE; --line: #2A303C; --surface: #171B23;
  --accent: #F472B6; --accent-soft: #3B1D2E; --focus: rgba(244, 114, 182, .22); color-scheme: dark;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0F1218; --fg: #E7EAF0; --muted: #98A0AE; --line: #2A303C; --surface: #171B23;
    --accent: #F472B6; --accent-soft: #3B1D2E; --focus: rgba(244, 114, 182, .22); color-scheme: dark;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: "Pretendard Variable", Pretendard, system-ui, -apple-system, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  -webkit-font-smoothing: antialiased;
}

.auth-panel {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px 16px;
  background:
    radial-gradient(600px 300px at 20% 0%, var(--accent-soft), transparent 70%),
    radial-gradient(500px 300px at 100% 100%, var(--accent-soft), transparent 70%),
    var(--bg);
}

.auth-wrap { width: 100%; max-width: 400px; }

/* 로고 */
.auth-brand { display: flex; align-items: center; gap: 12px; margin: 0 0 20px 4px; }
.auth-logo {
  width: 40px; height: 40px; border-radius: 12px;
  display: grid; place-items: center;
  background: var(--logo);
  box-shadow: 0 6px 16px rgba(236, 72, 153, .35);
}
.auth-logo svg { width: 22px; height: 22px; stroke: #fff; }
.auth-brand strong { display: block; font-size: 22px; font-weight: 800; letter-spacing: -.04em; line-height: 1.1; }
.auth-brand small { color: var(--muted); font-size: 12.5px; }

/* 카드 */
.auth-box {
  padding: 28px 26px 22px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
  box-shadow: 0 1px 2px rgba(16, 24, 40, .04), 0 12px 32px rgba(16, 24, 40, .08);
}
.auth-box h2 { margin: 0 0 6px; font-size: 20px; font-weight: 700; letter-spacing: -.02em; }
.auth-box p { margin: 0 0 20px; color: var(--muted); font-size: 13.5px; line-height: 1.55; }

/* 입력 칸 */
.field { display: block; margin-bottom: 14px; }
.field span { display: block; margin-bottom: 6px; font-size: 13px; font-weight: 600; }
.field em { margin-left: 4px; color: var(--muted); font-style: normal; font-weight: 400; }
.field input {
  width: 100%;
  height: 44px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg);
  color: var(--fg);
  font: inherit;
  font-size: 15px;
  transition: border-color .15s, box-shadow .15s, background .15s;
}
.field input::placeholder { color: var(--muted); opacity: .6; }
.field input:focus { outline: none; border-color: var(--accent); background: var(--surface); box-shadow: 0 0 0 4px var(--focus); }

/* 버튼 */
.auth-box button {
  width: 100%;
  height: 46px;
  margin-top: 6px;
  border: 0;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  font: inherit;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: filter .15s, transform .05s;
}
.auth-box button:hover:not(:disabled) { filter: brightness(1.06); }
.auth-box button:active:not(:disabled) { transform: translateY(1px); }
.auth-box button:disabled { opacity: .45; cursor: default; }

.auth-box .auth-note { min-height: 1.4em; margin: 10px 0 0; text-align: center; color: var(--accent); font-weight: 500; }
.auth-box .auth-note:empty { min-height: 0; margin: 0; }

.auth-box .auth-links {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  text-align: center;
  font-size: 13px;
}
.auth-links a { margin: 0 4px; color: var(--accent); font-weight: 600; text-decoration: none; }
.auth-links a:hover { text-decoration: underline; }
.auth-links span { color: var(--line); }

.auth-foot { margin: 16px 0 0; text-align: center; color: var(--muted); font-size: 12px; }

/* 가입 단계 표시 */
.auth-steps { display: flex; gap: 6px; margin: 4px 0 20px; padding: 0; list-style: none; counter-reset: step; }
.auth-steps li {
  flex: 1;
  padding: 7px 0;
  border-radius: 8px;
  background: var(--bg);
  color: var(--muted);
  font-size: 12px;
  text-align: center;
  counter-increment: step;
}
.auth-steps li::before { content: counter(step) ". "; font-weight: 700; }
.auth-steps li:first-child { background: var(--accent-soft); color: var(--accent); font-weight: 600; }

.auth-icon { font-size: 34px; margin-bottom: 8px; }

/* 약관 */
.auth-terms { margin: 0; padding: 0; list-style: none; }
.auth-terms:not(:empty) { margin: 4px 0 12px; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.auth-terms li { padding: 12px 14px; }
.auth-terms li + li { border-top: 1px solid var(--line); }
.auth-terms label { display: flex; align-items: center; gap: 8px; cursor: pointer; font-size: 14px; font-weight: 600; }
.auth-terms input { width: 18px; height: 18px; margin: 0; accent-color: var(--accent); }
.auth-terms label span { color: var(--muted); font-weight: 400; font-size: 12.5px; }
.auth-terms summary { margin: 4px 0 0 26px; color: var(--muted); font-size: 12.5px; cursor: pointer; }
.auth-terms pre {
  max-height: 220px;
  margin: 8px 0 0;
  padding: 10px 12px;
  overflow-y: auto;
  border-radius: 8px;
  background: var(--bg);
  color: var(--fg);
  font: inherit;
  font-size: 12.5px;
  line-height: 1.6;
  white-space: pre-wrap;
}

@media (max-width: 420px) {
  .auth-box { padding: 22px 18px 18px; border-radius: 14px; }
}