/* JIUM LABS — feedback board styles */

/* HERO */
.fb-hero { padding: 72px 0 48px; border-bottom: 1px solid var(--border); background: var(--bg-elev); }
.fb-hero .eyebrow { margin-bottom: 24px; }
.fb-hero__h1 { font-size: clamp(36px, 4.5vw, 56px); line-height: 1.05; letter-spacing: -0.03em; font-weight: 600; margin: 16px 0 18px; }
.fb-hero__h1 em { font-style: normal; color: var(--accent); font-weight: 600; }
.fb-hero__p { font-size: 17px; color: var(--fg-muted); margin: 0; max-width: 56ch; line-height: 1.55; }
.fb-hero__stats { display: grid; grid-template-columns: repeat(4, max-content); gap: 48px; margin-top: 40px; }
.fb-hero__stats > div { display: flex; flex-direction: column; gap: 6px; }
.fb-hero__k { color: var(--fg-subtle); font-size: 10.5px; }
.fb-hero__stats strong { font-size: 28px; font-weight: 600; letter-spacing: -0.02em; }
@media (max-width: 720px) { .fb-hero__stats { grid-template-columns: repeat(2, 1fr); gap: 24px; } }

/* TOOLBAR */
.fb-board { padding: 32px 0 64px; }
.fb-toolbar { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; padding-bottom: 20px; border-bottom: 1px solid var(--border); margin-bottom: 20px; position: sticky; top: 64px; background: color-mix(in oklab, var(--bg) 92%, transparent); backdrop-filter: blur(8px); z-index: 10; padding-top: 14px; }
.fb-filters, .fb-tabs { display: flex; flex-wrap: wrap; gap: 6px; }
.fb-tools { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }

.fb-chip, .fb-tab {
  height: 32px; padding: 0 12px; font: inherit; font-size: 13px;
  background: transparent; color: var(--fg-muted);
  border: 1px solid var(--border); border-radius: 999px; cursor: pointer;
  transition: background .15s, color .15s, border-color .15s;
}
.fb-chip:hover, .fb-tab:hover { color: var(--fg); border-color: var(--border-strong); }
.fb-chip.is-on { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.fb-tab.is-on { background: var(--accent-soft); color: var(--accent); border-color: color-mix(in oklab, var(--accent) 30%, var(--border)); }

.fb-sort { height: 32px; padding: 0 30px 0 12px; font: inherit; font-size: 13px; background: var(--bg-elev); color: var(--fg); border: 1px solid var(--border); border-radius: 8px; cursor: pointer; appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--fg-muted) 50%), linear-gradient(135deg, var(--fg-muted) 50%, transparent 50%);
  background-position: calc(100% - 14px) 14px, calc(100% - 10px) 14px; background-size: 4px 4px, 4px 4px; background-repeat: no-repeat;
}

/* LIST */
.fb-list { display: flex; flex-direction: column; gap: 12px; }
.fb-card { display: grid; grid-template-columns: 64px 1fr; background: var(--bg-elev); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 18px 20px; gap: 16px; transition: border-color .15s, transform .15s; }
.fb-card:hover { border-color: var(--border-strong); }
.fb-card.is-new { animation: fb-new 1.6s ease-out; border-color: var(--accent); }
@keyframes fb-new { 0% { box-shadow: 0 0 0 0 var(--accent-soft); } 100% { box-shadow: 0 0 0 8px transparent; } }

.fb-vote {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px;
  background: var(--bg-sunken); color: var(--fg-muted);
  border: 1px solid var(--border); border-radius: 10px; cursor: pointer; font: inherit;
  padding: 8px 0; min-height: 56px; transition: background .15s, color .15s, border-color .15s, transform .08s;
}
.fb-vote span { font-size: 13px; line-height: 1; }
.fb-vote strong { font-size: 14px; font-weight: 600; line-height: 1; }
.fb-vote:hover { color: var(--fg); border-color: var(--border-strong); }
.fb-vote:active { transform: translateY(1px); }
.fb-vote.is-on { background: var(--accent-soft); color: var(--accent); border-color: color-mix(in oklab, var(--accent) 30%, var(--border)); }

.fb-card__main { min-width: 0; }
.fb-card__top { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 8px; }
.fb-proj { display: inline-flex; align-items: center; gap: 6px; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--fg-muted); }
.fb-proj__dot { width: 7px; height: 7px; border-radius: 999px; background: var(--c); }
.fb-type { font-size: 11px; color: var(--fg-subtle); }
.fb-status { font-family: var(--font-mono); font-size: 10.5px; padding: 3px 9px; border-radius: 999px; letter-spacing: 0.04em; border: 1px solid var(--border); background: var(--bg); }
.fb-status--open      { color: var(--fg-muted); }
.fb-status--progress  { color: oklch(0.55 0.15 260); border-color: color-mix(in oklab, oklch(0.55 0.15 260) 22%, var(--border)); background: color-mix(in oklab, oklch(0.55 0.15 260) 8%, var(--bg)); }
.fb-status--done      { color: oklch(0.5 0.14 158);  border-color: color-mix(in oklab, oklch(0.5 0.14 158) 22%, var(--border));  background: color-mix(in oklab, oklch(0.5 0.14 158) 8%, var(--bg)); }
.fb-status--rejected  { color: var(--fg-subtle); text-decoration: line-through; }

.fb-card__title { font-size: 17px; font-weight: 600; letter-spacing: -0.01em; margin: 4px 0 6px; line-height: 1.35; }
.fb-card__body { font-size: 14.5px; color: var(--fg-muted); margin: 0 0 10px; line-height: 1.55; }
.fb-card__tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.fb-card__tags span { font-family: var(--font-mono); font-size: 11px; color: var(--fg-subtle); letter-spacing: 0.02em; }

.fb-reply { background: var(--bg-sunken); border: 1px dashed var(--border-strong); border-radius: 10px; padding: 12px 14px; margin: 4px 0 10px; }
.fb-reply__head { color: var(--accent); font-size: 10.5px; margin-bottom: 6px; }
.fb-reply p { margin: 0; color: var(--fg); font-size: 13.5px; line-height: 1.55; }

.fb-card__foot { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--fg-muted); }
.fb-dot { color: var(--fg-subtle); }
.fb-comments { display: inline-flex; align-items: center; gap: 5px; }
.fb-comments svg { color: var(--fg-subtle); }

.fb-empty { text-align: center; padding: 64px 0; color: var(--fg-muted); }

/* CTA */
.fb-cta { padding: 48px 0 96px; border-top: 1px solid var(--border); }
.fb-cta__inner { display: grid; grid-template-columns: 1.4fr auto; gap: 32px; align-items: center; background: var(--bg-elev); border: 1px solid var(--border); border-radius: var(--radius-xl); padding: 36px 40px; }
.fb-cta h2 { font-size: clamp(24px, 2.6vw, 32px); margin: 14px 0 10px; letter-spacing: -0.02em; font-weight: 600; line-height: 1.15; }
.fb-cta p { margin: 0; color: var(--fg-muted); max-width: 46ch; }
@media (max-width: 720px) { .fb-cta__inner { grid-template-columns: 1fr; padding: 28px 24px; } }

/* MODAL */
.fb-modal { position: fixed; inset: 0; z-index: 100; display: none; }
.fb-modal[aria-hidden="false"] { display: block; }
.fb-modal__backdrop { position: absolute; inset: 0; background: color-mix(in oklab, var(--fg) 50%, transparent); backdrop-filter: blur(2px); animation: fb-fade .15s ease-out; }
.fb-modal__panel { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); width: min(560px, calc(100vw - 32px)); max-height: calc(100vh - 64px); overflow: auto; background: var(--bg-elev); border: 1px solid var(--border); border-radius: var(--radius-xl); box-shadow: 0 30px 80px -20px rgba(0,0,0,.25); animation: fb-pop .18s ease-out; }
@keyframes fb-fade { from { opacity: 0; } to { opacity: 1; } }
@keyframes fb-pop { from { opacity: 0; transform: translate(-50%, -46%); } to { opacity: 1; transform: translate(-50%, -50%); } }
.fb-modal__head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; padding: 24px 24px 16px; border-bottom: 1px solid var(--border); }
.fb-modal__head h2 { margin: 8px 0 0; font-size: 22px; font-weight: 600; letter-spacing: -0.02em; }
.fb-modal__close { background: transparent; border: 0; color: var(--fg-muted); font-size: 24px; cursor: pointer; line-height: 1; padding: 4px 8px; }
.fb-modal__close:hover { color: var(--fg); }

.fb-form { padding: 18px 24px 24px; display: flex; flex-direction: column; gap: 16px; }
.fb-field { display: flex; flex-direction: column; gap: 6px; }
.fb-field label { color: var(--fg-subtle); font-size: 10.5px; letter-spacing: 0.06em; }
.fb-opt { color: var(--fg-subtle); font-family: var(--font-mono); font-size: 10px; }
.fb-field input[type="text"], .fb-field input[type="email"], .fb-field select, .fb-field textarea {
  font: inherit; font-size: 14.5px; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px;
  background: var(--bg); color: var(--fg); outline: none; resize: vertical;
}
.fb-field input:focus, .fb-field textarea:focus, .fb-field select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.fb-radio { display: flex; flex-wrap: wrap; gap: 12px; padding-top: 4px; }
.fb-radio label { display: inline-flex; align-items: center; gap: 6px; font-size: 13.5px; color: var(--fg); cursor: pointer; letter-spacing: 0; text-transform: none; }
.fb-radio input { accent-color: var(--accent); }
.fb-form__foot { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; padding-top: 4px; border-top: 1px dashed var(--border); padding-top: 14px; }
.fb-form__fine { margin: 0; color: var(--fg-muted); font-size: 12px; max-width: 30ch; }
.fb-form__actions { display: flex; gap: 8px; }

/* nav current */
.nav__links a.is-current { color: var(--fg); position: relative; }
.nav__links a.is-current::after { content: ""; position: absolute; left: 0; right: 0; bottom: -22px; height: 2px; background: var(--accent); }

@media (max-width: 720px) {
  .fb-card { grid-template-columns: 52px 1fr; padding: 14px 14px; }
}

/* ---------- COMMENTS (스레드) ---------- */

/* 댓글 토글 버튼 — 카드 footer 의 fb-comments 가 button 으로 변경 */
.fb-comments--btn {
  display: inline-flex; align-items: center; gap: 5px;
  background: transparent; border: 0; padding: 4px 8px; margin: -4px -8px -4px 0;
  border-radius: 999px; cursor: pointer; color: inherit; font: inherit;
  font-size: 12.5px; line-height: 1; transition: background .15s, color .15s;
}
.fb-comments--btn:hover { background: var(--bg-sunken); color: var(--fg); }
.fb-comments--btn[aria-expanded="true"] { background: color-mix(in oklab, var(--accent) 10%, transparent); color: var(--accent); }
.fb-comments--btn[aria-expanded="true"] svg { color: var(--accent); }
.fb-comments__n { font-family: var(--font-mono); font-size: 11px; }

/* 펼쳐진 댓글 영역 */
.fb-thread {
  margin-top: 14px; padding-top: 14px;
  border-top: 1px dashed var(--border);
  display: flex; flex-direction: column; gap: 12px;
  animation: fb-thread-in 0.18s ease-out;
}
@keyframes fb-thread-in {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* 댓글 리스트 */
.fb-thread__list { display: flex; flex-direction: column; gap: 10px; }
.fb-thread__loading,
.fb-thread__empty {
  font-size: 12px; color: var(--fg-subtle);
  letter-spacing: 0.02em; padding: 4px 2px;
}

.fb-comment {
  display: flex; flex-direction: column; gap: 4px;
  padding: 10px 12px;
  background: var(--bg-sunken);
  border: 1px solid var(--border);
  border-radius: 10px;
}
.fb-comment__head {
  display: flex; align-items: center; gap: 6px;
  font-size: 11.5px; color: var(--fg-subtle);
}
.fb-comment__author { color: var(--fg-muted); font-weight: 500; }
.fb-comment__date { font-size: 11px; }
.fb-comment__body {
  font-size: 13.5px; color: var(--fg);
  line-height: 1.55; word-break: break-word;
  white-space: pre-wrap;
}

/* 댓글 작성 폼 */
.fb-thread__form {
  display: grid;
  grid-template-columns: 140px 1fr auto;
  grid-template-areas: "author body submit";
  gap: 8px;
  align-items: start;
}
.fb-thread__author {
  grid-area: author;
  height: 36px; padding: 0 12px;
  font: inherit; font-size: 13px; color: var(--fg);
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 8px; outline: none;
  transition: border-color .15s;
}
.fb-thread__author:focus { border-color: var(--accent); }
.fb-thread__body {
  grid-area: body;
  min-height: 36px; padding: 9px 12px;
  font: inherit; font-size: 13px; color: var(--fg);
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 8px; outline: none; resize: vertical;
  font-family: inherit; line-height: 1.5;
  transition: border-color .15s;
}
.fb-thread__body:focus { border-color: var(--accent); }
.fb-thread__submit {
  grid-area: submit;
  height: 36px; padding: 0 18px;
  font: inherit; font-size: 13px; font-weight: 500;
  background: var(--fg); color: var(--bg);
  border: 0; border-radius: 8px; cursor: pointer;
  transition: opacity .15s, transform .08s;
}
.fb-thread__submit:hover { opacity: 0.88; }
.fb-thread__submit:active { transform: translateY(1px); }
.fb-thread__submit:disabled { opacity: 0.4; cursor: not-allowed; }

@media (max-width: 600px) {
  .fb-thread__form {
    grid-template-columns: 1fr;
    grid-template-areas: "author" "body" "submit";
  }
  .fb-thread__submit { justify-self: end; }
}