/* Industry — design-system tokens and component classes. This file is the source of truth for the system's look; retune it here and see readme.md. */
@import url('https://fonts.googleapis.com/css2?family=Barlow:wght@400;500;700&family=Barlow+Condensed:wght@400;600&display=swap');

/* 2026-08-12: 관리자 화면(/login, /members)을 공개 사이트의 "Synapse Night" 네온
   컨셉과 통일 — 로고 아트에서 뽑은 시안/마젠타/금색을 그대로 재사용한다(공개
   페이지 home.module.css의 --dp-* 팔레트와 동일한 소스). 표·폼처럼 정보 밀도가
   높은 화면이라 폰트는 안 바꾼다(Monoton은 큰 글자에서만 읽히는 장식체라 표
   안에 쓰면 오히려 가독성이 떨어짐) — 색만 다시 입힌다. 톤 램프는 손으로 27개
   hex를 정하는 대신 color-mix()로 bg↔text/accent 사이를 보간해 만든다(단계
   추가·수정이 쉽고 항상 일관된 명도 간격을 보장함). */
:root {
  --color-bg: #070912;
  --color-surface: #0e1224;
  --color-text: #eaf3f3;
  --color-accent: #3fe0d6;
  --color-accent-2: #ff3d9a;
  --color-divider: #232a4d;

  /* 중립 톤 — 100(배경에 가까움)에서 900(글자색에 가까움)으로 보간. */
  --color-neutral-100: color-mix(in srgb, var(--color-text) 8%, var(--color-bg));
  --color-neutral-200: color-mix(in srgb, var(--color-text) 16%, var(--color-bg));
  --color-neutral-300: color-mix(in srgb, var(--color-text) 26%, var(--color-bg));
  --color-neutral-400: color-mix(in srgb, var(--color-text) 38%, var(--color-bg));
  --color-neutral-500: color-mix(in srgb, var(--color-text) 50%, var(--color-bg));
  --color-neutral-600: color-mix(in srgb, var(--color-text) 62%, var(--color-bg));
  --color-neutral-700: color-mix(in srgb, var(--color-text) 74%, var(--color-bg));
  --color-neutral-800: color-mix(in srgb, var(--color-text) 86%, var(--color-bg));
  --color-neutral-900: var(--color-text);

  /* 시안 톤 — 배경 위 은은한 틴트(100)에서 순수 시안(600), 거의 흰색에 가까운
     하이라이트(900)까지. */
  --color-accent-100: color-mix(in srgb, var(--color-accent) 14%, var(--color-bg));
  --color-accent-200: color-mix(in srgb, var(--color-accent) 26%, var(--color-bg));
  --color-accent-300: color-mix(in srgb, var(--color-accent) 40%, var(--color-bg));
  --color-accent-400: color-mix(in srgb, var(--color-accent) 55%, var(--color-bg));
  --color-accent-500: color-mix(in srgb, var(--color-accent) 72%, var(--color-bg));
  --color-accent-600: var(--color-accent);
  --color-accent-700: color-mix(in srgb, var(--color-accent) 85%, white);
  --color-accent-800: color-mix(in srgb, var(--color-accent) 65%, white);
  --color-accent-900: color-mix(in srgb, var(--color-accent) 40%, white);

  /* 마젠타 톤 — accent와 같은 보간 방식, 보조 강조색(경고·삭제 등)에 쓴다. */
  --color-accent-2-100: color-mix(in srgb, var(--color-accent-2) 14%, var(--color-bg));
  --color-accent-2-200: color-mix(in srgb, var(--color-accent-2) 26%, var(--color-bg));
  --color-accent-2-300: color-mix(in srgb, var(--color-accent-2) 40%, var(--color-bg));
  --color-accent-2-400: color-mix(in srgb, var(--color-accent-2) 55%, var(--color-bg));
  --color-accent-2-500: color-mix(in srgb, var(--color-accent-2) 72%, var(--color-bg));
  --color-accent-2-600: var(--color-accent-2);
  --color-accent-2-700: color-mix(in srgb, var(--color-accent-2) 85%, white);
  --color-accent-2-800: color-mix(in srgb, var(--color-accent-2) 65%, white);
  --color-accent-2-900: color-mix(in srgb, var(--color-accent-2) 40%, white);

  --font-heading: "Barlow Condensed", system-ui, sans-serif;
  --font-heading-weight: 600;
  --font-body: "Barlow", system-ui, sans-serif;

  --space-1: 3.4px;
  --space-2: 6.8px;
  --space-3: 10.2px;
  --space-4: 13.6px;
  --space-6: 20.4px;
  --space-8: 27.2px;

  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 7px;

  /* Elevation — 어두운 바탕에선 그림자보다 순수 검정 + 시안 테두리 글로우가
     더 또렷하게 표면을 띄운다. */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);
  --shadow-md: 0 3px 14px rgba(0, 0, 0, .5), 0 0 0 1px color-mix(in srgb, var(--color-accent) 10%, transparent);
  --shadow-lg: 0 14px 40px rgba(0, 0, 0, .6), 0 0 0 1px color-mix(in srgb, var(--color-accent) 14%, transparent);
}

/* 라이트 모드 — 기준 토큰 6개만 바꾸면 중립·accent 27개 톤 램프는 위의
   color-mix() 공식이 자동으로 다시 계산한다(값을 하나하나 다시 안 적어도 됨).
   시안·마젠타를 흰 배경에서도 읽히게 더 진하게 눌렀다(연한 원본은 흰 배경에서
   거의 안 보임). */
:root[data-theme='light'] {
  --color-bg: #f5f6fb;
  --color-surface: #ffffff;
  --color-text: #191b2e;
  --color-accent: #0f8f86;
  --color-accent-2: #cf1c78;
  --color-divider: #dcdfec;
  --shadow-sm: 0 1px 2px rgba(30, 32, 60, .08);
  --shadow-md: 0 3px 14px rgba(30, 32, 60, .1), 0 0 0 1px color-mix(in srgb, var(--color-accent) 12%, transparent);
  --shadow-lg: 0 14px 40px rgba(30, 32, 60, .14), 0 0 0 1px color-mix(in srgb, var(--color-accent) 16%, transparent);
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
}
h1, h2, h3, h4 { font-family: var(--font-heading); font-weight: var(--font-heading-weight); }

.blueprint {
  position: relative;
  border: 1px solid var(--color-divider);
  border-radius: 0;
}
/* The overlay image treatments (halftone, duotone) clip their overlay
   (overflow:hidden); a blueprint wrapper draws its registration marks
   outside the box, so when both classes share a wrapper the frame must
   win. */
.blueprint.halftone, .blueprint.plate, .blueprint.duotone { overflow: visible; }
.blueprint > .corner {
  position: absolute; width: 11px; height: 11px;
  color: color-mix(in srgb, var(--color-text) 55%, transparent);
}
.blueprint > .corner::before, .blueprint > .corner::after {
  content: ""; position: absolute; background: currentColor;
}
.blueprint > .corner::before { left: 5px; top: 0; width: 1px; height: 100%; }
.blueprint > .corner::after  { top: 5px; left: 0; width: 100%; height: 1px; }
.blueprint > .corner.tl { top: -6px; left: -6px; }
.blueprint > .corner.tr { top: -6px; right: -6px; }
.blueprint > .corner.bl { bottom: -6px; left: -6px; }
.blueprint > .corner.br { bottom: -6px; right: -6px; }

.duotone{position:relative;overflow:hidden}
.duotone::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:var(--color-accent);mix-blend-mode:color}

/* ══════════════════════════════════════════════════════════════════════════
   Components — built with the tokens above. Plain CSS
   on plain HTML: no JavaScript, no build step. Each class is documented in
   readme.md and demonstrated in foundations/ and components/.
   ══════════════════════════════════════════════════════════════════════ */

*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; font-size: 15px; line-height: 1.55; font-weight: 400; }
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading); font-weight: var(--font-heading-weight);
  line-height: 1.12; letter-spacing: -0.015em; margin: 0 0 var(--space-2);
}
h1 { font-size: 42px; }
h2 { font-size: 32px; }
h3 { font-size: 25px; }
h4 { font-size: 20px; }
h5 { font-size: 16px; }
h6 { font-size: 13px; }
h6 { letter-spacing: 0.08em; text-transform: uppercase; }
p { margin: 0 0 var(--space-3); }
a { color: var(--color-accent); text-underline-offset: 3px; }
img { display: block; max-width: 100%; }
figure { margin: 0; }
figcaption {
  font-size: 11px; margin-top: var(--space-1);
  color: color-mix(in srgb, var(--color-text) 55%, transparent);
}
.text-muted { color: color-mix(in srgb, var(--color-text) 55%, transparent); }
:focus { outline: none; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
::selection { background: color-mix(in srgb, var(--color-accent) 30%, transparent); }

/* — rules — */
.hr {
  height: 1px; border: 0; margin: var(--space-4) 0;
  background: var(--color-divider);
}

/* — buttons — */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  cursor: pointer; text-decoration: none;
  font-family: var(--font-heading); font-weight: var(--font-heading-weight);
  font-size: 14px; line-height: 1.2; color: var(--color-text); /* matches the .input's 14px —
     the pair sits side by side in sign-up rows */
  background: transparent; border: 1px solid transparent;
  padding: var(--space-2) calc(var(--space-3) * 1.2);
  border-radius: var(--radius-md);
  transition: transform .12s ease-out;
}
.btn svg { display: block; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn:active:not(:disabled) { transform: scale(.97); }
.btn-primary { background: var(--color-accent); color: var(--color-bg); transition: background-color .15s, box-shadow .15s, transform .12s ease-out; }
.btn-primary:hover {
  background: var(--color-accent-600);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--color-accent) 50%, transparent),
    0 0 18px -2px color-mix(in srgb, var(--color-accent) 65%, transparent);
}
.btn-primary:active { background: var(--color-accent-700); }
.btn-secondary { border-color: var(--color-divider); }
.btn-secondary:hover { background: color-mix(in srgb, var(--color-text) 7%, transparent); }
.btn-secondary:active { background: color-mix(in srgb, var(--color-text) 14%, transparent); }
.btn-ghost { color: var(--color-accent); padding-inline: var(--space-1); }
.btn-ghost:hover { background: color-mix(in srgb, var(--color-accent) 10%, transparent); }
.btn-ghost:active { background: color-mix(in srgb, var(--color-accent) 18%, transparent); }
.btn-icon { width: 36px; height: 36px; padding: 0; }
.btn-block { width: 100%; margin-top: var(--space-2); }

/* — forms — */
.field > label {
  display: block; font-size: 12px; margin-bottom: 5px;
  color: color-mix(in srgb, var(--color-text) 70%, transparent);
}
.input {
  width: 100%; min-height: 36px; padding: 6px 10px; font: inherit;
  font-size: 14px; color: var(--color-text); caret-color: var(--color-accent);
  background: var(--color-surface);
  border: 1px solid var(--color-divider); border-radius: var(--radius-md);
}
.input:hover { border-color: color-mix(in srgb, var(--color-text) 45%, transparent); }
.input:focus-visible { border-color: var(--color-accent); outline-offset: 0; }
textarea.input { min-height: 90px; resize: vertical; }
.radio { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; font-size: 14px; }
.radio input, .seg-opt input {
  position: absolute; opacity: 0; width: 0; height: 0; pointer-events: none;
}
.radio .dot {
  width: 16px; height: 16px; flex: none; border-radius: 50%;
  border: 1.5px solid var(--color-divider);
}
.radio:hover .dot { border-color: var(--color-accent); }
.radio input:checked + .dot {
  border-color: var(--color-accent); background: var(--color-accent);
  box-shadow: inset 0 0 0 4px var(--color-bg);
}
.radio input:focus-visible + .dot { outline: 2px solid var(--color-accent); outline-offset: 2px; }
.seg {
  display: inline-flex; overflow: hidden;
  border: 1px solid var(--color-divider); border-radius: var(--radius-md);
}
.seg-opt {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 12px; font-size: 13px; cursor: pointer;
}
.seg-opt + .seg-opt { border-left: 1px solid var(--color-divider); }
.seg-opt:has(input:checked) { background: var(--color-accent); color: var(--color-bg); }
.seg-opt:not(:has(input:checked)):hover { background: color-mix(in srgb, var(--color-text) 7%, transparent); }
.seg-opt:has(input:focus-visible) { outline: 2px solid var(--color-accent); outline-offset: -2px; }

/* — cards — */
.card {
  display: flex; flex-direction: column; gap: var(--space-2);
  padding: var(--space-3); border-radius: var(--radius-md); background: var(--color-surface);
}
.card-kicker { font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-accent); }
.card-title {
  font-family: var(--font-heading); font-weight: var(--font-heading-weight);
  font-size: 17px; line-height: 1.2;
}
.card-body { margin: 0; font-size: 13px; opacity: 0.8; flex: 1; }
.card-meta {
  display: flex; align-items: center; gap: 6px; font-size: 11px;
  color: color-mix(in srgb, var(--color-text) 50%, transparent);
}
.elev-sm { box-shadow: var(--shadow-sm); }
.elev-md { box-shadow: var(--shadow-md); }
.elev-lg { box-shadow: var(--shadow-lg); }

/* — tags — */
.tag {
  display: inline-flex; align-items: center; font-size: 11px;
  letter-spacing: 0.02em; padding: 3px 10px;
  border-radius: calc(var(--radius-md) * 0.75);
}
.tag-accent { background: var(--color-accent-100); color: var(--color-accent-800); }
.tag-accent-2 { background: var(--color-accent-2-100); color: var(--color-accent-2-800); }
.tag-neutral { background: var(--color-neutral-100); color: var(--color-neutral-800); }
.tag-outline { border: 1px solid var(--color-accent); color: var(--color-accent); }

/* — navigation — */
.nav {
  display: flex; align-items: center; gap: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border-bottom: none;
}
.nav-brand {
  font-family: var(--font-heading); font-weight: var(--font-heading-weight);
  font-size: 18px; margin-right: auto;
}
.nav a { color: inherit; text-decoration: none; font-size: 14px; }
.nav a:hover, .nav a[aria-current='page'] { color: var(--color-accent); }

/* — tables — */
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th {
  text-align: left; font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase;
  color: color-mix(in srgb, var(--color-text) 60%, transparent);
  padding: var(--space-2); border-bottom: 1px solid var(--color-divider);
}
.table td {
  padding: var(--space-2);
  border-bottom: 1px solid color-mix(in srgb, var(--color-text) 8%, transparent);
}
.table tbody tr:hover { background: color-mix(in srgb, var(--color-text) 4%, transparent); }

/* — dialog — */
.dialog-backdrop {
  position: fixed; inset: 0; display: grid; place-items: center;
  padding: var(--space-4);
  /* neutral-900은 이제 글자색(밝음) 쪽이라 스크림엔 못 쓴다 — 배경을 어둡게
     누르는 용도는 테마와 무관하게 항상 검정이어야 한다. */
  background: rgba(0, 0, 0, .5);
}
.dialog {
  width: min(440px, 100%); display: flex; flex-direction: column; gap: var(--space-3);
  padding: var(--space-4); border-radius: var(--radius-lg);
  background: var(--color-surface); box-shadow: var(--shadow-lg);
}
.dialog-title {
  font-family: var(--font-heading); font-weight: var(--font-heading-weight);
  font-size: 20px;
}
.dialog-body { font-size: 14px; opacity: 0.85; }
.dialog-actions { display: flex; justify-content: flex-end; gap: var(--space-2); margin-top: var(--space-2); }

/* — blueprint frame: components are wireframe objects (see .blueprint
     and .corner above) — square, transparent, hairline-bordered — */
.card, .btn, .input, .tag, .seg, .dialog { border-radius: 0; }
.card, .dialog { background: transparent; border: 1px solid var(--color-divider); }
.btn { border: 1px solid var(--color-divider); }
.btn-primary { border-color: var(--color-accent); }
.btn-ghost { border-color: transparent; }