/* learn-with-phoebe - the course shelf
   Direction: PORCELAIN & VIOLET (light), rounded display type.
   One accent (violet = "here" / key info), a library-shelf metaphor:
   every course is a book spine on a plank; click one to open its detail. */

:root {
  --bg:      #FBFAFE;
  --bg-2:    #F5F2FC;
  --panel:   #FFFFFF;
  --card:    #FFFFFF;
  --card-hi: #FAF8FE;
  --line:    #ECE7F5;
  --line-hi: #DAD2EE;
  --ink:     #1C1830;
  --ink-2:   #423B5C;
  --muted:   #6C6685;
  --faint:   #9A93B0;
  --ghost:   #ECE6F7;
  --accent:  #7C3AED;
  --accent-hi:#6D28D9;
  --accent-ink:#FFFFFF;
  --accent-dim:#F1EBFD;
  --accent-line:rgba(124,58,237,.28);
  --plank-a: #EFEAFA;
  --plank-b: #E0D8F3;
  --radius:  16px;
  --wrap:    72rem;
  --disp: "Fredoka", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body {
  background:
    radial-gradient(120% 60% at 100% -10%, rgba(124,58,237,.09), transparent 60%),
    var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  font-feature-settings:"tnum";
}
a { color:inherit; text-decoration:none; }
.wrap { max-width:var(--wrap); margin:0 auto; padding:0 28px; }

/* ---------- hero ---------- */
.hero { padding:92px 0 52px; border-bottom:1px solid var(--line); position:relative; }
.hero .eyebrow {
  font-family:var(--disp);
  font-size:12px; font-weight:600; letter-spacing:.22em; text-transform:uppercase;
  color:var(--accent); display:inline-flex; align-items:center; gap:10px;
}
.hero .eyebrow::before { content:""; width:26px; height:2px; background:var(--accent); display:inline-block; }
.hero h1 {
  font-family:var(--disp);
  font-size:clamp(42px,8vw,84px); font-weight:600; letter-spacing:-.02em;
  line-height:1; margin:22px 0 24px; text-wrap:balance; color:var(--ink);
}
.hero h1 .hl { color:var(--accent); }
.hero .sub { color:var(--ink-2); font-size:clamp(16px,2vw,19px); max-width:60ch; line-height:1.6; }

.flywheel {
  display:flex; align-items:center; gap:12px; flex-wrap:wrap;
  margin-top:26px; font-size:13px;
}
.flywheel .fw-step {
  font-family:var(--disp); font-weight:500; color:var(--ink-2);
  border:1px solid var(--line-hi); border-radius:999px; padding:6px 15px;
  background:var(--panel);
}
.flywheel .fw-step:last-of-type { color:var(--accent-hi); border-color:var(--accent-line); background:var(--accent-dim); }
.flywheel .fw-ar { color:var(--faint); font-size:15px; }

.stats { display:flex; gap:52px; margin-top:44px; flex-wrap:wrap; }
.stat b {
  font-family:var(--disp);
  display:block; font-size:46px; font-weight:600; line-height:1;
  font-variant-numeric:tabular-nums; letter-spacing:-.02em; color:var(--accent);
}
.stat span { font-size:11px; text-transform:uppercase; letter-spacing:.14em; color:var(--faint); font-weight:700; margin-top:9px; display:block; }

.legend { display:flex; align-items:center; gap:18px; margin-top:34px; flex-wrap:wrap; }
.legend .lg-lbl { font-size:12px; color:var(--faint); font-weight:600; }
.legend .lg-item { display:inline-flex; align-items:center; gap:7px; font-size:12px; color:var(--muted); font-weight:600; }
.legend .lg-dot { width:8px; height:8px; border-radius:999px; flex:none; }

/* ---------- filter bar ---------- */
.filterbar {
  position:sticky; top:0; z-index:20;
  background:rgba(251,250,254,.82); backdrop-filter:blur(12px) saturate(1.1);
  border-bottom:1px solid var(--line);
}
.filterbar .wrap { display:flex; gap:8px; padding-top:15px; padding-bottom:15px; flex-wrap:wrap; align-items:center; }
.fchip {
  font-size:13px; font-weight:600; color:var(--muted);
  background:var(--panel); border:1px solid var(--line);
  border-radius:999px; padding:8px 16px; cursor:pointer;
  font-family:inherit; transition:color .14s ease, border-color .14s ease, background .14s ease; white-space:nowrap;
}
.fchip:hover { color:var(--ink); border-color:var(--line-hi); }
.fchip.on { background:var(--accent); color:var(--accent-ink); border-color:var(--accent); font-weight:700; }
.fchip .n { opacity:.6; font-variant-numeric:tabular-nums; margin-left:5px; }
.fchip.on .n { opacity:.8; }
.fsep { width:1px; height:22px; background:var(--line); margin:0 5px; }
.fdim { font-family:var(--disp); font-size:11px; color:var(--faint); text-transform:uppercase; letter-spacing:.1em; font-weight:600; margin-right:3px; }

/* ---------- shelves (the bookshelf) ---------- */
main { padding:26px 0 110px; }
.shelf { position:relative; margin-top:58px; }
.shelf.hidden { display:none; }

.shelf-label { display:flex; align-items:baseline; gap:13px; margin-bottom:6px; }
.shelf-no {
  font-family:var(--disp); font-weight:600; font-size:38px; line-height:1;
  color:var(--ghost); letter-spacing:-.02em; font-variant-numeric:tabular-nums; user-select:none;
}
.shelf-name { font-family:var(--disp); font-size:23px; font-weight:600; letter-spacing:-.01em; color:var(--ink); }
.shelf-cnt { font-size:12.5px; color:var(--accent); font-weight:700; font-variant-numeric:tabular-nums; white-space:nowrap; }
.shelf-tier {
  display:inline-flex; align-items:center; gap:7px; margin-left:auto; align-self:center;
  font-size:11px; font-weight:700; color:var(--muted);
  text-transform:uppercase; letter-spacing:.07em;
  border:1px solid var(--line); border-radius:999px; padding:5px 12px; white-space:nowrap; background:var(--panel);
}
.shelf-tier .st-dot { width:7px; height:7px; border-radius:999px; flex:none; }
.shelf-blurb { color:var(--muted); font-size:14px; margin:0 0 16px; max-width:72ch; }

/* the rack: shirts hanging on a rail (rail repeats per wrapped row) */
.bar { position:relative; }
.rail {
  display:flex; gap:14px; flex-wrap:wrap; align-items:flex-start;
  background-image:repeating-linear-gradient(to bottom,
    transparent 0 11px, #cdbfec 11px 13px, #a897db 13px 15px, transparent 15px 187px);
}

.garment { position:relative; width:180px; padding-top:15px; background:none; border:none; cursor:pointer; font-family:inherit; }
.garment.hidden { display:none; }
.hanger { position:absolute; top:0; left:50%; transform:translateX(-50%); z-index:3; pointer-events:none; }

.shirt { display:block; position:relative; width:180px; height:158px; transition:transform .18s cubic-bezier(.2,.7,.2,1); }
.s-svg { position:absolute; inset:0; width:100%; height:100%; filter:drop-shadow(0 12px 14px rgba(60,40,110,.16)); }
.s-body { fill:var(--lane-tint, #fff); stroke:var(--lane-edge, var(--line-hi)); stroke-width:1.5; transition:stroke .16s ease, stroke-width .16s ease; }
.s-collar { fill:none; stroke:var(--lane); stroke-width:5; stroke-linecap:round; }
.s-face {
  position:absolute; left:35px; right:35px; top:50px; bottom:16px;
  display:flex; flex-direction:column; align-items:center; text-align:center; gap:5px;
}
.s-ico { font-size:17px; line-height:1; }
.s-name {
  font-family:var(--disp); font-weight:600; font-size:13.5px; line-height:1.16; color:var(--ink);
  display:-webkit-box; -webkit-line-clamp:3; -webkit-box-orient:vertical; overflow:hidden;
}
.s-cap { font-size:9.5px; font-weight:600; color:var(--muted); text-transform:uppercase; letter-spacing:.05em; }
.garment.interactive .s-cap { color:var(--accent-hi); }
.garment:hover .shirt { transform:translateY(6px); }
.garment:hover .s-body { stroke:var(--accent-line); }
.garment.selected .shirt { transform:translateY(6px); }
.garment.selected .s-body { stroke:var(--accent); stroke-width:2; }

/* planned = ghost shirt */
.garment.planned .s-body { fill:#F5F2FB; stroke:var(--line-hi); stroke-dasharray:5 4; }
.garment.planned .s-collar { stroke:var(--line-hi); }
.garment.planned .s-name, .garment.planned .s-cap { color:var(--faint); }
.garment.planned .s-svg { filter:none; }

/* detail drawer under the shelf */
.shelf-detail { display:grid; grid-template-rows:0fr; transition:grid-template-rows .3s ease; margin-top:14px; }
.shelf-detail > .sd-inner { overflow:hidden; min-height:0; }
.shelf-detail.open > .sd-inner {
  display:flex; gap:20px; align-items:center; flex-wrap:wrap;
  border:1px solid var(--line-hi); border-radius:var(--radius);
  background:linear-gradient(100deg, #FFFFFF, var(--card-hi));
  box-shadow:0 20px 40px -28px rgba(60,40,110,.4);
  padding:22px 24px;
}
.shelf-detail.open { grid-template-rows:1fr; }
.sd-spine { width:46px; height:66px; border-radius:4px; flex:none; position:relative;
  background:linear-gradient(100deg,#FFFFFF,#F3EEFC); border:1px solid var(--line-hi);
  display:flex; align-items:center; justify-content:center; font-size:22px; }
.sd-spine::before { content:""; position:absolute; left:0; top:0; bottom:0; width:5px; border-radius:4px 0 0 4px; background:var(--lane); }
.sd-body { flex:1; min-width:220px; }
.sd-kick { font-family:var(--disp); font-size:10.5px; font-weight:600; text-transform:uppercase; letter-spacing:.1em; color:var(--faint); }
.sd-title { font-family:var(--disp); font-size:23px; font-weight:600; letter-spacing:-.01em; margin:3px 0 6px; color:var(--ink); }
.sd-blurb { font-size:14px; color:var(--ink-2); line-height:1.55; max-width:62ch; }
.sd-tags { display:flex; gap:7px; flex-wrap:wrap; margin-top:12px; }
.tag { font-size:10.5px; font-weight:700; padding:4px 11px; border-radius:999px;
  background:var(--bg-2); color:var(--muted); border:1px solid var(--line); display:inline-flex; align-items:center; gap:6px; }
.tag.lime { background:var(--accent-dim); color:var(--accent-hi); border-color:transparent; }
.tag .tag-dot { width:7px; height:7px; border-radius:999px; }
.sd-cta { display:flex; align-items:center; gap:14px; margin-left:auto; }
.sd-open {
  font-family:var(--disp); font-size:14px; font-weight:600; color:var(--accent-ink);
  background:var(--accent); border-radius:999px; padding:11px 20px; display:inline-flex; align-items:center; gap:8px;
  transition:transform .15s ease, box-shadow .15s ease;
}
.sd-open:hover { transform:translateY(-2px); box-shadow:0 12px 24px -10px rgba(124,58,237,.55); background:var(--accent-hi); }
.sd-open .ar { transition:transform .15s ease; }
.sd-open:hover .ar { transform:translateX(4px); }
.sd-planned { font-family:var(--disp); font-size:11px; font-weight:600; color:var(--faint);
  text-transform:uppercase; letter-spacing:.07em; text-align:center; line-height:1.4; }
.sd-close { background:transparent; border:1px solid var(--line); color:var(--muted);
  width:34px; height:34px; border-radius:999px; cursor:pointer; font-size:13px; flex:none;
  transition:color .14s ease, border-color .14s ease; }
.sd-close:hover { color:var(--ink); border-color:var(--line-hi); }

.empty { color:var(--faint); font-size:14px; padding:30px 0; display:none; }
.empty.show { display:block; }

/* ---------- footer ---------- */
footer { border-top:1px solid var(--line); padding:30px 0 64px; margin-top:20px; }
footer p { color:var(--faint); font-size:13px; }
footer a { color:var(--muted); }
footer a:hover { color:var(--accent); }

@media (max-width:640px) {
  .rail { gap:11px; }
  .garment, .shirt { width:150px; }
  .shirt { height:134px; }
  .s-face { left:29px; right:29px; top:42px; }
  .s-name { font-size:12.5px; }
  .shelf-no { font-size:30px; }
  .shelf-name { font-size:19px; }
  .sd-cta { margin-left:0; width:100%; justify-content:space-between; }
}

/* reveal - gentle fade, once. Opacity only, so :hover/.selected keep transform. */
@media (prefers-reduced-motion:no-preference) {
  .garment { opacity:0; animation:rise .5s ease forwards; }
  @keyframes rise { from { opacity:0; } to { opacity:1; } }
}