/* ============================================================
   Selected Work · Case Files
   A dark drafting desk with paper case files on it — the same
   paper, ink and rust as the Blueprint hero. A sticky index on
   the left tracks where you are; each file reads problem →
   build → result. Every card sizes to its content, so text can
   never outgrow its container. Motion lives in js/work.js.
   ============================================================ */

.work {
  --paper: #f3efe6;
  --ink: #141c1a;
  --ink-80: rgba(20, 28, 26, 0.8);
  --ink-64: rgba(20, 28, 26, 0.64);
  --ink-28: rgba(20, 28, 26, 0.28);
  --ink-14: rgba(20, 28, 26, 0.14);
  --ink-08: rgba(20, 28, 26, 0.08);
  --ink-04: rgba(20, 28, 26, 0.035);
  --rust: #7a5a24;
  --rust-line: rgba(138, 106, 48, 0.55);
  --light-64: rgba(244, 241, 234, 0.64);
  --light-40: rgba(244, 241, 234, 0.4);
  --light-12: rgba(244, 241, 234, 0.12);
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);

  position: relative;
  z-index: 10;
  isolation: isolate;
  padding: clamp(6rem, 15vh, 10rem) var(--pad-x) clamp(6rem, 14vh, 10rem);
  color: var(--text-light);
  /* Translucent desk: the particle grid shows through, the files don't */
  background: linear-gradient(
    180deg,
    rgba(9, 13, 12, 0.94) 0%,
    rgba(9, 13, 12, 0.8) 18%,
    rgba(9, 13, 12, 0.8) 82%,
    rgba(9, 13, 12, 0.94) 100%
  );
}
.work-grid-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(201, 168, 107, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201, 168, 107, 0.06) 1px, transparent 1px);
  background-size: 120px 120px;
  -webkit-mask-image: linear-gradient(180deg, transparent, #000 12%, #000 88%, transparent);
  mask-image: linear-gradient(180deg, transparent, #000 12%, #000 88%, transparent);
}

/* ─── Head ─── */
.work-head {
  max-width: 62rem;
  margin-bottom: clamp(3.5rem, 9vh, 6.5rem);
}
.work .section-title.work-title {
  font-size: clamp(3rem, 7.2vw, 6.75rem);
  line-height: 0.98;
  letter-spacing: -0.035em;
  -webkit-text-stroke: 0;
  text-shadow: none;
  margin: 0 0 clamp(1.25rem, 3vh, 2rem);
}
.work-title em {
  color: var(--accent-gold);
}
.work-lede {
  max-width: 38rem;
  font-size: clamp(1.02rem, 1.2vw, 1.18rem);
  line-height: 1.6;
  color: var(--light-64);
}

/* ─── Body: sticky index + files ─── */
.work-body {
  display: grid;
  grid-template-columns: minmax(200px, 3fr) minmax(0, 9fr);
  gap: clamp(2rem, 5vw, 6rem);
  align-items: start;
}

/* ─── The index ─── */
.work-index {
  position: sticky;
  top: clamp(6rem, 15vh, 9rem);
}
.wi-label {
  display: block;
  margin-bottom: 1rem;
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--light-40);
}
.wi-list {
  position: relative;
  z-index: 1; /* dots sit on top of the progress track */
  list-style: none;
  margin: 0;
  padding: 0 0 0 1.4rem;
}
.wi-item {
  position: relative;
  display: grid;
  grid-template-columns: 2.1rem 1fr;
  row-gap: 0.18rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid rgba(244, 241, 234, 0.07);
  color: var(--light-64);
  transition: color 0.35s ease;
}
.wi-item::before {
  content: "";
  position: absolute;
  left: calc(-1.4rem - 3.5px);
  top: 1.2rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #0b100f;
  border: 1px solid rgba(244, 241, 234, 0.28);
  transition:
    background 0.35s ease,
    border-color 0.35s ease,
    box-shadow 0.35s ease;
}
.wi-num {
  grid-row: span 2;
  padding-top: 0.12rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--light-40);
  transition: color 0.35s ease;
}
.wi-name {
  font-weight: 600;
  font-size: 0.98rem;
  letter-spacing: -0.005em;
}
.wi-what {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--light-40);
}
@media (hover: hover) and (pointer: fine) {
  .wi-item:hover {
    color: var(--text-light);
  }
}
.wi-item.is-active {
  color: var(--text-light);
}
.wi-item.is-active .wi-num {
  color: var(--accent-gold);
}
.wi-item.is-active::before {
  background: var(--accent-gold);
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 4px rgba(201, 168, 107, 0.16);
}
/* Progress track runs dot to dot; js/work.js measures and places it */
.wi-track {
  position: absolute;
  left: 0;
  width: 1px;
  display: none;
  pointer-events: none;
}
.work-index.is-measured .wi-track {
  display: block;
  background: rgba(244, 241, 234, 0.1);
}
.wi-fill {
  position: absolute;
  inset: 0;
  background: var(--accent-gold);
  transform: scaleY(0);
  transform-origin: top;
}
.wi-cta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.35rem;
  margin-top: 2.25rem;
  text-align: left;
}
.wi-cta-q {
  font-size: 0.88rem;
  color: var(--light-64);
}
.wi-cta-a {
  display: inline-flex;
  gap: 0.45rem;
  padding-bottom: 0.2rem;
  border-bottom: 1px solid var(--accent-gold);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-light);
  transition: gap 0.3s var(--ease-out), color 0.3s ease;
}
@media (hover: hover) and (pointer: fine) {
  .wi-cta:hover .wi-cta-a {
    gap: 0.8rem;
    color: var(--accent-gold);
  }
}

/* ─── The files ─── */
.work-cases {
  display: flex;
  flex-direction: column;
  gap: clamp(4.5rem, 11vh, 7.5rem);
  padding-top: 30px; /* room for the first file tab */
}
.case {
  position: relative;
  scroll-margin-top: 8rem;
  padding: clamp(1.6rem, 3.4vw, 3.25rem);
  border-radius: 0 12px 12px 12px;
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    linear-gradient(var(--ink-04) 1px, transparent 1px),
    linear-gradient(90deg, var(--ink-04) 1px, transparent 1px);
  background-size: 24px 24px;
  background-position: -1px -1px;
  box-shadow:
    0 50px 90px -40px rgba(0, 0, 0, 0.75),
    0 18px 40px -24px rgba(0, 0, 0, 0.5),
    inset 0 1px 0 rgba(255, 255, 255, 0.6);
}
.case-tab {
  position: absolute;
  left: 0;
  bottom: 100%;
  display: flex;
  align-items: center;
  height: 30px;
  padding: 0 1.1rem;
  border-radius: 10px 10px 0 0;
  background: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--rust);
}
.case-mark {
  position: absolute;
  top: clamp(0.75rem, 2vw, 1.6rem);
  right: clamp(1rem, 2.6vw, 2.4rem);
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(4.5rem, 9vw, 8.5rem);
  line-height: 0.8;
  letter-spacing: -0.04em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(20, 28, 26, 0.12);
  pointer-events: none;
  user-select: none;
}

.case-meta {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem 0.55rem;
  margin: 0 0 clamp(1rem, 2vw, 1.4rem);
  padding-right: clamp(4.5rem, 10vw, 9rem);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-64);
}
.cm-sep {
  color: var(--rust);
  opacity: 0.8;
}
.case-status {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin-left: 0.4rem;
  padding: 0.28rem 0.6rem;
  border: 1px solid var(--ink-14);
  border-radius: 99px;
  font-size: 0.58rem;
  letter-spacing: 0.16em;
  color: var(--ink-64);
}
.case-status.is-live::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #3f9b63;
  box-shadow: 0 0 0 0 rgba(63, 155, 99, 0.5);
  animation: caseLive 2.4s ease-out infinite;
}
@keyframes caseLive {
  0% { box-shadow: 0 0 0 0 rgba(63, 155, 99, 0.45); }
  100% { box-shadow: 0 0 0 9px rgba(63, 155, 99, 0); }
}

.case-title {
  position: relative;
  max-width: 21ch;
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(1.9rem, 3.2vw, 3.15rem);
  line-height: 1.04;
  letter-spacing: -0.028em;
  color: var(--ink);
}
.case-title em {
  color: var(--rust);
}

/* Metrics: the claim, measured */
.case-metrics {
  position: relative;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr));
  margin: clamp(1.6rem, 3vw, 2.4rem) 0 clamp(0.6rem, 1.4vw, 1rem);
}
.case-metrics::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: var(--ink-28);
  transform-origin: left;
}
.cmx {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  padding: 1.15rem 1.5rem 1.2rem 0;
}
.cmx + .cmx {
  padding-left: 1.5rem;
  border-left: 1px solid var(--ink-14);
}
.cmx-num {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(2.6rem, 4.6vw, 4.1rem);
  line-height: 0.95;
  letter-spacing: -0.035em;
  white-space: nowrap;
  color: var(--ink);
  font-variant-numeric: lining-nums tabular-nums;
}
.cmx-unit {
  color: var(--rust);
}
.cmx-label {
  max-width: 24ch;
  font-size: 0.86rem;
  line-height: 1.42;
  color: var(--ink-64);
}

/* Story: problem → build → result */
.case-story {
  margin: 0;
}
.cs-row {
  position: relative;
  display: grid;
  grid-template-columns: 8.5rem minmax(0, 1fr);
  gap: 1.5rem;
  padding: 1.05rem 0;
}
.cs-row::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: var(--ink-14);
  transform-origin: left;
}
/* Rules draw themselves when a file unfolds (classes set by js/work.js) */
.case.rules-pending .case-metrics::before,
.case.rules-pending .cs-row::before {
  transform: scaleX(0);
}
.case.rules-drawn .case-metrics::before,
.case.rules-drawn .cs-row::before {
  transform: scaleX(1);
  transition: transform 1.1s cubic-bezier(0.77, 0, 0.175, 1);
}
.case.rules-drawn .cs-row:nth-child(2)::before {
  transition-delay: 0.09s;
}
.case.rules-drawn .cs-row:nth-child(3)::before {
  transition-delay: 0.18s;
}
.cs-row dt {
  padding-top: 0.28rem;
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--rust);
}
.cs-row dd {
  max-width: 62ch;
  margin: 0;
  font-size: clamp(0.98rem, 1.06vw, 1.06rem);
  line-height: 1.62;
  color: var(--ink-80);
}
.case-note {
  max-width: 52ch;
  margin: 1rem 0 0;
  font-size: 1.02rem;
  line-height: 1.6;
  color: var(--ink-80);
}

/* Engines Evergrow writes for */
.case-engines {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.9rem 1.2rem;
  margin-top: 0.4rem;
  padding: 0.85rem 1.1rem;
  border: 1px dashed var(--ink-28);
  border-radius: 8px;
}
.ce-label {
  margin-right: 0.3rem;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-64);
}
.case-engines img {
  height: 19px;
  width: auto;
  filter: grayscale(1) contrast(1.1);
  opacity: 0.62;
  transition: filter 0.3s ease, opacity 0.3s ease;
}
@media (hover: hover) and (pointer: fine) {
  .case-engines img:hover {
    filter: none;
    opacity: 1;
  }
}

/* Footer: stack + link */
.case-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 2rem;
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--ink-14);
}
.case-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.case-stack li {
  padding: 0.4rem 0.72rem;
  border: 1px solid var(--ink-14);
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.4);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-80);
}
.case-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding-bottom: 0.2rem;
  border-bottom: 1px solid currentColor;
  font-weight: 600;
  font-size: 0.94rem;
  color: var(--ink);
  transition: gap 0.3s var(--ease-out), color 0.3s ease;
}
@media (hover: hover) and (pointer: fine) {
  .case-link:hover {
    gap: 0.85rem;
    color: var(--rust);
  }
}
.work a:focus-visible,
.work button:focus-visible {
  outline-color: var(--accent-gold);
}
.case a:focus-visible {
  outline-color: var(--rust);
}

/* Credentials: six certificate plates */
.case-certs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.7rem;
  margin-top: clamp(1.5rem, 3vw, 2.2rem);
}
.case .aws-item {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--ink-14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.42);
  transition:
    border-color 0.3s ease,
    background-color 0.3s ease;
}
@media (hover: hover) and (pointer: fine) {
  .case .aws-item:hover {
    border-color: var(--rust-line);
    background-color: rgba(255, 255, 255, 0.8);
  }
}
.case .aws-item img {
  flex-shrink: 0;
  width: 54px;
  height: 54px;
  object-fit: contain;
  filter: drop-shadow(0 6px 10px rgba(20, 28, 26, 0.18));
}
.case .aws-item p {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.64rem;
  line-height: 1.45;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-80);
}
.case .aws-item p em {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.05rem;
  letter-spacing: 0;
  text-transform: none;
  color: var(--rust);
}

/* ─── Tablet: index turns into a jump bar ─── */
@media (max-width: 960px) {
  .work-body {
    grid-template-columns: minmax(0, 1fr); /* let the jump bar scroll, not stretch */
    gap: 3rem;
  }
  .work-index {
    position: static;
    min-width: 0;
  }
  .wi-label,
  .wi-track,
  .work-index.is-measured .wi-track,
  .wi-cta,
  .wi-what,
  .wi-item::before {
    display: none;
  }
  .wi-list {
    display: flex;
    gap: 0.5rem;
    padding: 0 0 0.25rem;
    overflow-x: auto;
    scrollbar-width: none;
  }
  .wi-list::-webkit-scrollbar {
    display: none;
  }
  .wi-item {
    display: inline-flex;
    gap: 0.55rem;
    padding: 0.6rem 0.95rem;
    border: 1px solid var(--light-12);
    border-radius: 99px;
    white-space: nowrap;
  }
  .wi-num {
    padding: 0;
  }
  .wi-name {
    font-size: 0.86rem;
  }
  .case-certs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ─── Phone ─── */
@media (max-width: 600px) {
  .case {
    border-radius: 0 10px 10px 10px;
  }
  .cs-row {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }
  .cmx + .cmx {
    padding-left: 0;
    border-left: 0;
    border-top: 1px solid var(--ink-14);
  }
  .case .aws-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
  }
  .case-foot {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ─── Reduced motion ─── */
@media (prefers-reduced-motion: reduce) {
  .case-status.is-live::before {
    animation: none;
  }
}