/* ===== Shared design system for project detail pages ===== */
:root{
  --bg:#0b1120; --bg-soft:#0f172a; --surface:#141e33; --surface-2:#1b2740;
  --line:rgba(148,163,184,.16); --text:#e8edf6; --muted:#94a3b8; --muted-2:#64748b;
  --brand:#5b8cff; --brand-2:#38bdf8; --accent:#f0a44a; --accent-2:#d97742; --ok:#34d399;
  --warn:#fbbf24; --bad:#f87171;
  --theme:#5b8cff; --theme-2:#38bdf8;   /* per-page override */
  --radius:18px; --maxw:1080px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Noto Sans TC","Manrope",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

.bgfx{position:fixed;inset:0;z-index:-1;overflow:hidden}
.bgfx::before,.bgfx::after{content:"";position:absolute;border-radius:50%;filter:blur(120px);opacity:.42}
.bgfx::before{width:520px;height:520px;background:radial-gradient(circle,var(--theme),transparent 70%);top:-160px;left:-120px}
.bgfx::after{width:520px;height:520px;background:radial-gradient(circle,var(--theme-2),transparent 70%);bottom:-220px;right:-160px;opacity:.28}

/* nav */
nav{position:fixed;top:0;left:0;right:0;z-index:50;backdrop-filter:blur(14px);background:rgba(11,17,32,.7);border-bottom:1px solid var(--line)}
.nav-in{max-width:var(--maxw);margin:0 auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between}
.back{display:inline-flex;align-items:center;gap:9px;font-size:14px;font-weight:600;color:var(--muted);padding:8px 14px;border-radius:999px;transition:.2s}
.back:hover{color:var(--text);background:var(--surface)}
.nav-name{font-weight:800;font-size:15px;color:var(--text);display:flex;align-items:center;gap:10px}
.nav-name .dot{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--theme),var(--theme-2));display:grid;place-items:center;color:#04122e;font-weight:900;font-size:13px}

/* hero */
.phero{padding:140px 0 50px}
.crumb{font:600 13px/1 "Manrope";letter-spacing:.04em;color:var(--theme-2);margin-bottom:18px;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.crumb a{color:var(--muted-2)}
.crumb a:hover{color:var(--text)}
.ptag{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;color:var(--theme-2);background:color-mix(in srgb,var(--theme) 12%,transparent);border:1px solid color-mix(in srgb,var(--theme) 30%,transparent);padding:7px 14px;border-radius:999px;margin-bottom:18px}
.phero h1{font-size:clamp(30px,5vw,52px);font-weight:900;letter-spacing:-.02em;line-height:1.08;margin-bottom:16px}
.phero h1 .g{background:linear-gradient(120deg,var(--theme),var(--theme-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.phero .sum{color:var(--muted);font-size:17px;max-width:680px}
.metabar{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.metabar .m{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px 20px;min-width:150px}
.metabar .m .k{font-size:12px;color:var(--muted-2)}
.metabar .m .v{font-size:15px;font-weight:700;margin-top:3px}

section.blk{padding:46px 0;position:relative}
.eyebrow{font:600 12px/1 "Manrope";letter-spacing:.2em;text-transform:uppercase;color:var(--theme-2);display:inline-flex;align-items:center;gap:10px;margin-bottom:16px}
.eyebrow::before{content:"";width:26px;height:2px;background:linear-gradient(90deg,var(--theme),var(--theme-2));border-radius:2px}
h2.sec{font-size:clamp(22px,3.2vw,30px);font-weight:900;letter-spacing:-.01em;margin-bottom:10px}
.sec-lead{color:var(--muted);max-width:660px;margin-bottom:26px}

/* overview */
.ov{color:var(--muted);font-size:16px;max-width:760px}
.ov strong{color:var(--text);font-weight:600}

/* modules grid */
.mods{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:14px}
.mod{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px 20px;transition:.22s}
.mod:hover{transform:translateY(-4px);border-color:color-mix(in srgb,var(--theme) 45%,transparent)}
.mod .ic{font-size:22px}
.mod h4{font-size:15px;font-weight:700;margin:10px 0 4px}
.mod p{font-size:13px;color:var(--muted)}

/* role list */
.roles{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.role{display:flex;gap:14px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px 18px;transition:.2s}
.role:hover{border-color:color-mix(in srgb,var(--theme) 40%,transparent)}
.role .n{font:800 14px/1.4 "Manrope";color:var(--theme-2);flex:none;width:26px}
.role p{font-size:14px;color:var(--text)}
.role p b{color:var(--theme-2);font-weight:700}

/* mockup frame (browser chrome) */
.mockwrap{margin-top:8px}
.mock{background:var(--surface);border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:0 30px 60px -34px rgba(0,0,0,.8)}
.mock-bar{display:flex;align-items:center;gap:8px;padding:12px 16px;background:var(--surface-2);border-bottom:1px solid var(--line)}
.mock-bar .dots{display:flex;gap:6px}
.mock-bar .dots i{width:11px;height:11px;border-radius:50%;display:block}
.mock-bar .dots i:nth-child(1){background:#f87171}.mock-bar .dots i:nth-child(2){background:#fbbf24}.mock-bar .dots i:nth-child(3){background:#34d399}
.mock-bar .url{flex:1;text-align:center;font:500 12px/1 "Manrope";color:var(--muted-2);background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:7px 12px;margin:0 10px;max-width:340px}
.mock-hint{font-size:12px;color:var(--theme-2);font-weight:600;white-space:nowrap}
.mock-body{padding:0}

/* generic mockup helpers */
.tabs{display:flex;gap:4px;padding:14px 16px 0;flex-wrap:wrap}
.tab{font-size:13px;font-weight:600;color:var(--muted);padding:9px 16px;border-radius:10px 10px 0 0;cursor:pointer;border:1px solid transparent;border-bottom:none;transition:.18s;user-select:none}
.tab:hover{color:var(--text)}
.tab.on{color:var(--text);background:var(--bg);border-color:var(--line)}
.panel{display:none;padding:22px;background:var(--bg);border-top:1px solid var(--line);animation:fade .35s}
.panel.on{display:block}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:12px;margin-bottom:18px}
.kpi{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px}
.kpi .v{font:800 24px/1 "Manrope";color:var(--text)}
.kpi .v small{font-size:13px;color:var(--ok);margin-left:6px;font-weight:700}
.kpi .l{font-size:12px;color:var(--muted-2);margin-top:7px}
.kpi .spark{height:30px;margin-top:10px}
table.tbl{width:100%;border-collapse:collapse;font-size:13px}
table.tbl th{text-align:left;color:var(--muted-2);font-weight:600;padding:10px 12px;border-bottom:1px solid var(--line);font-size:12px}
table.tbl td{padding:11px 12px;border-bottom:1px solid var(--line);color:var(--text)}
table.tbl tr:hover td{background:var(--surface)}
.badge{font-size:11px;font-weight:700;padding:4px 9px;border-radius:999px}
.b-ok{color:var(--ok);background:rgba(52,211,153,.13)}
.b-warn{color:var(--warn);background:rgba(251,191,36,.13)}
.b-bad{color:var(--bad);background:rgba(248,113,113,.13)}
.b-info{color:var(--brand-2);background:rgba(56,189,248,.13)}

/* CTA / next */
.nextnav{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:30px}
.nbtn{flex:1;min-width:240px;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px 22px;transition:.22s}
.nbtn:hover{border-color:color-mix(in srgb,var(--theme) 50%,transparent);transform:translateY(-3px)}
.nbtn .k{font-size:12px;color:var(--muted-2)}
.nbtn .t{font-size:16px;font-weight:700;margin-top:4px}
.nbtn.home{display:grid;place-items:center;text-align:center;background:linear-gradient(135deg,var(--theme),var(--theme-2));color:#04122e;max-width:200px;flex:none}
.nbtn.home .t{color:#04122e}

footer{padding:40px 0;text-align:center;color:var(--muted-2);font-size:13px;border-top:1px solid var(--line);margin-top:30px}

.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s,transform .7s}
.reveal.in{opacity:1;transform:none}

.note{font-size:12.5px;color:var(--muted-2);margin-top:14px;display:flex;gap:8px;align-items:flex-start}
.note::before{content:"ⓘ";color:var(--theme-2)}

@media(max-width:760px){
  .roles{grid-template-columns:1fr}
  .phero{padding-top:120px}
  section.blk{padding:38px 0}
  .mock-bar .url{display:none}
}