/* ==========================================================================
   Project browser (index.html) — layout only; components come from style.css
   ========================================================================== */

/* ---------- Shell: project rail + content ---------- */
.mk { display: grid; grid-template-columns: 284px minmax(0, 1fr); min-height: 100vh; }
.mk-rail {
  position: sticky; top: 0; height: 100vh; overflow-y: auto;
  display: flex; flex-direction: column; gap: 22px; padding: 20px 16px;
  border-right: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 70%, transparent);
  backdrop-filter: saturate(160%) blur(14px); -webkit-backdrop-filter: saturate(160%) blur(14px);
}
.mk-rail-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 0 4px; }
.mk-nav { display: flex; flex-direction: column; gap: 2px; }
.mk-group {
  margin: 18px 12px 6px;
  font: 600 11.5px var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--accent-2);
}
.mk-item {
  display: grid; gap: 2px; padding: 10px 12px; border-radius: 11px;
  color: var(--ink); transition: background .15s, color .15s;
}
.mk-item:hover { background: var(--surface-2); }
.mk-item.is-active { background: var(--ink); color: var(--bg); }
.mk-item-title { font-weight: 600; font-size: 15.5px; line-height: 1.3; }
.mk-item-stat { font-size: 13px; color: var(--ink-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mk-item-stat strong { color: var(--accent-2); font-weight: 600; }
.mk-item.is-active .mk-item-stat { color: color-mix(in srgb, var(--bg) 72%, transparent); }
.mk-item.is-active .mk-item-stat strong { color: var(--bg); }
.mk-keys { margin: auto 12px 0; font-size: 12.5px; color: var(--ink-3); }
.mk-keys kbd {
  display: inline-grid; place-items: center; min-width: 22px; height: 22px; margin-right: 4px; padding: 0 5px;
  border: 1px solid var(--line-strong); border-radius: 6px; background: var(--surface);
  font: 500 12px var(--font-mono); color: var(--ink-2);
}

.mk-main { min-width: 0; padding: 0 clamp(20px, 4vw, 56px) 96px; }
.mk-inner { max-width: 1080px; margin: 0 auto; }

/* ---------- Slim bar that appears once the title scrolls away ---------- */
.mk-mini { position: sticky; top: 0; z-index: 30; height: 0; margin: 0 calc(-1 * clamp(20px, 4vw, 56px)); }
.mk-mini-bar {
  display: flex; align-items: center; gap: 8px; padding: 10px clamp(20px, 4vw, 56px);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(160%) blur(14px); -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--line);
  opacity: 0; transform: translateY(-100%); pointer-events: none; transition: opacity .2s, transform .2s;
}
.mk-mini.show .mk-mini-bar { opacity: 1; transform: none; pointer-events: auto; }
.mk-mini-title { flex: 1; min-width: 0; font: 600 17px var(--font-display); letter-spacing: -.01em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mk-mini .icon-btn { width: 34px; height: 34px; }
.mk-mini .icon-btn svg { width: 16px; height: 16px; }

/* ---------- Page header ---------- */
.mk-head { padding: clamp(32px, 5vw, 56px) 0 0; }
.mk-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 14px; margin: 0; }
.mk-kind { font: 600 12px var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--accent-2); }
.mk-pos { font: 500 12px var(--font-mono); color: var(--ink-3); }
.mk-head h1 { font-size: clamp(36px, 5vw, 56px); letter-spacing: -.035em; margin: 12px 0 14px; }
.mk-head .lede { font-size: clamp(17px, 1.7vw, 20px); color: var(--ink-2); max-width: 720px; margin-bottom: 22px; }
.mk-head .metrics { margin-top: 26px; }
.mk-head .a-tools { margin-top: 0; }

/* ---------- Sections: the same three on every project ---------- */
.mk-sec { margin-top: clamp(44px, 5vw, 64px); }
.mk-sec-title {
  display: flex; align-items: center; gap: 14px; margin: 0 0 20px;
  font: 600 12.5px var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3);
}
.mk-sec-title::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.mk-why { max-width: 760px; padding-left: 18px; border-left: 3px solid var(--accent-2); font-size: 18px; color: var(--ink); }
.mk-why p:last-child { margin-bottom: 0; }
.mk-sub { font-size: 22px; margin: 0 0 6px; }
.mk-sub-gap { margin-top: clamp(36px, 4vw, 48px); }
.mk-subtext { color: var(--ink-2); max-width: 720px; margin: 0 0 20px; }
.mk-sec .a-demo { justify-content: flex-start; }
.mk-under { display: grid; gap: 12px; }
.mk-under .tour-build { margin-top: 0; }
.mk-under .sc-cards { margin-top: 18px; }
.mk-under .shot { margin-top: 18px; }

/* ---------- Tour with horizontal tabs (the rail is the only sidebar) ---------- */
.mk-tour { grid-template-columns: minmax(0, 1fr); gap: 14px; }
.mk-tabs {
  display: flex; flex-wrap: wrap; gap: 12px 32px; padding: 12px 14px;
  border-radius: var(--radius-lg); border: 1px solid var(--line); box-shadow: var(--shadow-sm);
  background: color-mix(in srgb, var(--surface) 88%, transparent);
}
.mk-tabgroup { display: grid; gap: 6px; align-content: start; }
.mk-tabgroup-label { padding-left: 6px; font: 600 11px var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--accent-2); }
.mk-tabrow { display: flex; flex-wrap: wrap; gap: 4px; }
.mk-tab {
  padding: 7px 13px; border: 0; border-radius: 999px; background: none; cursor: pointer;
  font: 500 14.5px var(--font); color: var(--ink); transition: background .15s, color .15s;
}
.mk-tab:hover { background: var(--surface-2); }
.mk-tab[aria-selected="true"] { background: var(--ink); color: var(--bg); }

/* ---------- Overview grid ---------- */
.mk-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 18px; }
.mk-card {
  display: flex; flex-direction: column; overflow: hidden;
  border-radius: var(--radius-lg); border: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.mk-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); border-color: var(--line-strong); }
.mk-card-img { position: relative; display: block; aspect-ratio: 16 / 10; overflow: hidden; background: var(--surface-2); border-bottom: 1px solid var(--line); }
.mk-card-img img { width: 100%; height: 100%; object-fit: cover; object-position: top left; }
/* A single panel or phone screen, shown centred and fading out, rather than cropped */
.mk-card-img.is-ui img {
  position: absolute; top: 20px; left: 50%; transform: translateX(-50%);
  width: 62%; height: auto; border-radius: 10px 10px 0 0; border: 1px solid var(--line); border-bottom: 0; background: #fff;
  -webkit-mask-image: linear-gradient(#000 70%, transparent); mask-image: linear-gradient(#000 70%, transparent);
}
.mk-card-body { flex: 1; display: flex; flex-direction: column; gap: 10px; padding: 20px 22px 22px; }
.mk-card h3 { font-size: 24px; }
.mk-card p { margin: 0; font-size: 15px; color: var(--ink-2); }
.mk-stat { font-size: 14px; color: var(--ink-2); }
.mk-stat strong { margin-right: 6px; font: 600 22px var(--font-display); letter-spacing: -.02em; color: var(--accent-2); }
.mk-card .chip-row { margin-top: auto; padding-top: 6px; gap: 6px; }
.mk-card .chip { height: 24px; padding: 0 9px; font-size: 12px; }

/* ---------- Narrow screens: the rail becomes a sticky bar of chips ---------- */
@media (max-width: 1023px) {
  .mk { grid-template-columns: minmax(0, 1fr); }
  .mk-rail {
    z-index: 40; min-width: 0; height: auto; overflow: visible; gap: 10px; padding: 12px 16px 10px;
    border-right: 0; border-bottom: 1px solid var(--line);
  }
  .mk-nav { flex-direction: row; gap: 6px; overflow-x: auto; margin: 0 -16px; padding: 0 16px 2px; scrollbar-width: none; }
  .mk-nav::-webkit-scrollbar { display: none; }
  .mk-group, .mk-item-stat, .mk-keys, .mk-mini { display: none; }
  .mk-item { flex: 0 0 auto; padding: 7px 14px; border: 1px solid var(--line); border-radius: 999px; }
  .mk-item.is-active { border-color: var(--ink); }
  .mk-item-title { font-size: 14.5px; white-space: nowrap; }
  .mk-main { padding: 0 16px 72px; }
}
@media (max-width: 640px) {
  .mk-grid { grid-template-columns: minmax(0, 1fr); }
}