/* Geekcon AI Studio — Use Case Lab cards and the Expert Builder (form · SKILL.md preview · try panel). */

/* ---------- use case lab ---------- */
.uc-filter { margin-bottom: 8px; }
.uc-group { margin-top: var(--sp-5); }
.uc-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 290px), 1fr)); gap: 14px; }
.uc {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 210px;
  padding: 18px;
  border-radius: var(--r-md);
  border: 1px solid var(--line-soft);
  background: linear-gradient(170deg, color-mix(in srgb, var(--dc) 9%, rgba(20, 18, 19, 0.92)), rgba(11, 10, 11, 0.78) 70%);
  text-align: left;
  cursor: pointer;
  overflow: hidden;
  transition: transform var(--dur) var(--ease-out), border-color var(--dur-fast), box-shadow var(--dur);
}
.uc::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: linear-gradient(180deg, var(--dc), transparent); opacity: 0.8; }
.uc:hover { transform: translateY(-4px); border-color: color-mix(in srgb, var(--dc) 60%, transparent); box-shadow: 0 26px 50px -26px rgba(0, 0, 0, 0.95), 0 0 46px -24px var(--dc); }
.uc:active { transform: translateY(-1px) scale(0.99); }
.uc-top { display: flex; align-items: center; gap: 10px; }
.uc-glyph { display: grid; place-items: center; width: 74px; height: 36px; border-radius: 10px; background: rgba(63, 216, 242, 0.08); border: 1px solid rgba(63, 216, 242, 0.25); }
.uc-glyph .glyph { width: 64px; height: 26px; }
.uc-type { font: 600 11px/1 var(--font-mono); letter-spacing: 0.18em; text-transform: uppercase; color: var(--mute); }
.uc.is-flow .uc-type { color: var(--cyan-300); }
.uc-min { margin-left: auto; font-size: 12px; color: var(--faint); }
.uc-title { font: 500 18px/1.35 var(--font-display); overflow-wrap: anywhere; }
.uc-sum, .uc-pain { display: grid; grid-template-columns: 30px minmax(0, 1fr); gap: 8px; align-items: baseline; font-size: 14px; line-height: 1.55; color: var(--dim); }
.uc-pain { color: var(--mute); font-size: 13.5px; }
.uc-sum i, .uc-pain i { font: 500 11px/1.6 var(--font-display); font-style: normal; text-align: center; border-radius: 6px; padding: 0 4px; }
.uc-pain i { color: var(--mute); border: 1px solid var(--line); }
.uc-sum i { color: var(--ink-950); background: var(--dc); }
.uc-foot { margin-top: auto; display: flex; align-items: center; gap: 12px; padding-top: 12px; border-top: 1px solid rgba(255, 241, 210, 0.08); }
.uc-target { font-size: 13px; color: var(--dc); min-width: 0; }
.uc-go { margin-left: auto; display: inline-flex; align-items: center; gap: 6px; flex: none; font: 500 14px/1 var(--font-display); color: var(--paper); }
.uc-go svg { width: 16px; height: 16px; transition: transform var(--dur) var(--ease-out); }
.uc:hover .uc-go svg { transform: translateX(3px); }

/* ---------- builder ---------- */
.os-note { display: flex; align-items: center; gap: 16px; margin: -8px 0 22px; padding: 14px 18px; border-radius: var(--r-md); background: linear-gradient(90deg, rgba(63, 216, 242, 0.12), rgba(63, 216, 242, 0.02)); border: 1px solid rgba(63, 216, 242, 0.35); color: var(--dim); }
.os-note b { color: var(--cyan-200); font-weight: 600; }
.os-note code { font: 500 0.9em var(--font-mono); color: var(--paper); background: rgba(255, 255, 255, 0.06); padding: 1px 6px; border-radius: 6px; }
.os-ico svg { width: 30px; height: 30px; color: var(--cyan-300); }
.builder { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 20px; align-items: start; }
.bform { display: grid; gap: 18px; padding: clamp(18px, 1.8vw, 28px); }
.bfield > label { display: flex; align-items: center; gap: 10px; }
.bstep { display: grid; place-items: center; width: 26px; height: 26px; border-radius: 8px; flex: none; font: 600 13px/1 var(--font-display); color: var(--ink-950); background: var(--grad-btn); }
.bfield.is-sub { padding-left: 36px; }
.bfield.is-sub > label { font-size: 14px; color: var(--dim); }
.bmeta { display: flex; justify-content: space-between; gap: 12px; min-height: 18px; }
.bmeta .char-count { margin-left: auto; }
.icon-pick { display: flex; flex-wrap: wrap; gap: 6px; }
.ipick { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 11px; border: 1px solid var(--line); background: rgba(11, 10, 11, 0.6); color: var(--dim); cursor: pointer; transition: border-color var(--dur-fast), color var(--dur-fast), background-color var(--dur-fast); }
.ipick svg { width: 20px; height: 20px; }
.ipick:hover { color: var(--paper); border-color: var(--mute); }
.ipick[aria-checked="true"] { color: var(--amber-300); border-color: var(--amber-500); background: rgba(253, 178, 25, 0.12); }
.bside { display: grid; gap: 18px; position: sticky; top: 20px; }
.skill-card { display: grid; grid-template-rows: auto minmax(0, 1fr) auto; max-height: 62vh; overflow: hidden; }
.skill-head { display: flex; align-items: center; gap: 10px; padding: 14px 18px; border-bottom: 1px solid var(--line-soft); }
.skill-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--cyan-400); box-shadow: 0 0 10px var(--cyan-400); }
.skill-file { font-size: 13px; color: var(--paper); min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; margin-right: auto; }
.skill-pre { margin: 0; padding: 16px 18px; overflow: auto; min-height: 0; font: 400 12.8px/1.65 var(--font-mono); color: var(--dim); white-space: pre-wrap; overflow-wrap: anywhere; background: rgba(5, 4, 5, 0.5); }
.skill-pre .t-fm { color: var(--cyan-200); }
.skill-pre .t-fm b { color: var(--cyan-400); font-weight: 600; }
.skill-pre .t-h1 { color: var(--amber-300); font-weight: 600; }
.skill-pre .t-h2 { color: var(--amber-500); font-weight: 600; }
.skill-pre .t-bul { color: var(--amber-300); }
.skill-pre .t-fence { color: var(--faint); }
.skill-pre .t-code { color: var(--paper); }
.skill-act { padding: 14px 18px; border-top: 1px solid var(--line-soft); }
.saved-box { display: grid; gap: 10px; padding: 14px 18px; border-radius: var(--r-md); background: rgba(91, 227, 164, 0.1); border: 1px solid rgba(91, 227, 164, 0.5); }
.saved-box b { font: 500 15px/1.4 var(--font-display); color: var(--ok); }
.try { display: grid; gap: 14px; padding: 18px; }
.bside .rp .doc { min-height: 200px; }
.bside .rp { max-height: 70vh; }

@media (max-width: 1099px) {
  .builder { grid-template-columns: minmax(0, 1fr); }
  .bside { position: relative; top: 0; }
  .skill-card { max-height: 60vh; }
}