/* ═══════════════════════════════════════════════
   CASES PAGE — Frame Future
═══════════════════════════════════════════════ */

/* Space Grotesk applied directly — variable override unreliable across sheets */
.case-hero,
.case-index,
.case-panels,
.case-card,
.case-panel,
footer {
  font-family: 'Space Grotesk', system-ui, sans-serif;
}

.nav-links a[aria-current="page"] { color: var(--cyan-400); }

/* ─── Hero ─── */
.case-hero {
  position: relative;
  padding: 96px 0 72px;
  overflow: hidden;
  border-bottom: 1px solid var(--navy-600);
}
.case-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(52% 52% at 18% 18%, rgba(94,220,255,0.11), transparent 68%),
    linear-gradient(180deg, rgba(19,29,46,0.42), transparent);
  pointer-events: none;
}
.case-hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0,1fr) 320px;
  gap: 64px;
  align-items: end;
}
.case-hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(94,220,255,0.08);
  border: 1px solid rgba(94,220,255,0.20);
  color: var(--cyan-400);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  margin-bottom: 28px;
}
.case-hero .eyebrow .dot {
  width: 6px; height: 6px;
  border-radius: 999px;
  background: var(--cyan-400);
  box-shadow: 0 0 12px var(--cyan-400);
}
.case-hero h1 {
  font-size: clamp(48px, 5.8vw, 88px);
  font-weight: 300;
  line-height: 0.98;
  letter-spacing: -0.03em;
  margin: 0 0 28px;
  max-width: 960px;
}
.case-hero p.lede {
  font-size: 20px;
  line-height: 1.55;
  color: var(--slate-400);
  max-width: 680px;
  margin: 0;
}
.case-signal {
  border: 1px solid var(--navy-600);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, var(--navy-700), var(--navy-800));
  padding: 24px;
  min-height: 220px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.case-signal strong {
  color: var(--cyan-400);
  font-size: 88px;
  font-weight: 200;
  line-height: 1;
  letter-spacing: -0.05em;
}
.case-signal span:last-child {
  color: var(--slate-400);
  font-size: 15px;
  line-height: 1.45;
}

/* ─── Section head ─── */
.case-index { padding-bottom: 0; }
.section-head { margin-bottom: 36px; }

/* ═══════════════════════════════════════════════
   CARDS — wobble hover, accordion trigger
═══════════════════════════════════════════════ */
.case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 22px;
}

.case-card {
  position: relative;
  display: block;
  width: 100%;
  text-align: left;
  background:
    linear-gradient(180deg, rgba(19,29,46,0.92), rgba(10,18,32,0.96)),
    radial-gradient(70% 60% at 20% 10%, rgba(94,220,255,0.12), transparent 70%);
  border: 1px solid var(--navy-600);
  border-radius: var(--radius-lg);
  padding: 0;
  overflow: hidden;
  cursor: pointer;
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease), background .3s var(--ease);
}

.case-card::before, .case-card::after {
  content: '';
  position: absolute;
  width: 28px; height: 28px;
  border: 2px solid var(--cyan-400);
  opacity: .4;
  pointer-events: none;
  transition: opacity .24s var(--ease);
  z-index: 1;
}
.case-card::before { top: 14px; right: 14px; border-left: none; border-bottom: none; }
.case-card::after  { bottom: 14px; left: 14px; border-right: none; border-top: none; }

@keyframes card-wobble {
  0%   { transform: rotate(0deg) scale(1.015); }
  15%  { transform: rotate(-1.2deg) scale(1.015); }
  30%  { transform: rotate(1deg) scale(1.015); }
  45%  { transform: rotate(-0.7deg) scale(1.015); }
  60%  { transform: rotate(0.5deg) scale(1.015); }
  75%  { transform: rotate(-0.3deg) scale(1.015); }
  100% { transform: rotate(0deg) scale(1.015); }
}

.case-card:hover {
  border-color: rgba(94,220,255,.45);
  box-shadow: 0 8px 40px rgba(94,220,255,0.08), 0 2px 12px rgba(0,0,0,0.4);
  animation: card-wobble 0.55s var(--ease) forwards;
  background:
    linear-gradient(180deg, rgba(26,42,63,0.96), rgba(10,18,32,0.98)),
    radial-gradient(70% 60% at 20% 10%, rgba(94,220,255,0.18), transparent 70%);
}
.case-card:hover::before, .case-card:hover::after { opacity: 1; }

.case-card.is-active {
  border-color: var(--cyan-400);
  background:
    linear-gradient(180deg, rgba(26,42,63,0.98), rgba(10,18,32,0.99)),
    radial-gradient(70% 60% at 20% 10%, rgba(94,220,255,0.22), transparent 70%);
  box-shadow: 0 0 0 1px rgba(94,220,255,0.3), 0 12px 48px rgba(94,220,255,0.1);
}
.case-card.is-active::before, .case-card.is-active::after { opacity: 1; }
.case-card.is-active .cta-arrow { transform: rotate(180deg); }

.case-card-inner {
  padding: 28px;
  display: flex;
  flex-direction: column;
  min-height: 380px;
}
.case-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 12px;
}
.case-card-kicker {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .10em;
  text-transform: uppercase;
  color: var(--cyan-400);
}
.case-card-num {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--slate-500);
  letter-spacing: 0.06em;
}
.card-visual { margin: 0 0 14px; }
.card-visual svg { width: 100%; height: auto; max-height: 84px; }
.case-card h3 {
  margin: 0 0 10px;
  font-size: 28px;
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--ink);
}
.case-card p {
  margin: 0 0 auto;
  color: var(--slate-400);
  font-size: 15px;
  line-height: 1.55;
  flex: 1;
}
.case-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding-top: 20px;
  margin-top: 20px;
  border-top: 1px solid var(--navy-600);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--slate-500);
}
.card-cta { display: flex; align-items: center; gap: 6px; color: var(--slate-400); transition: color .2s var(--ease); }
.case-card:hover .card-cta, .case-card.is-active .card-cta { color: var(--cyan-400); }
.cta-arrow { display: inline-block; transition: transform .3s var(--ease); }

/* ═══════════════════════════════════════════════
   ACCORDION PANELS
═══════════════════════════════════════════════ */
.case-panels { margin-top: 20px; }

.case-panel {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height .6s cubic-bezier(0.16,1,0.3,1), opacity .4s var(--ease);
  border-radius: var(--radius-xl);
}
.case-panel[hidden] { display: block !important; visibility: hidden; }
.case-panel.is-open { max-height: 12000px; opacity: 1; visibility: visible; }

.case-panel-inner {
  padding: 56px;
  background: var(--navy-800);
  border: 1px solid rgba(94,220,255,0.22);
  border-radius: var(--radius-xl);
  margin-bottom: 24px;
}

/* ─── Panel header ─── */
.cpanel-header {
  display: grid;
  grid-template-columns: 1fr 196px;
  gap: 44px;
  align-items: start;
  margin-bottom: 44px;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--navy-600);
}
.cpanel-title-col h2 {
  font-size: clamp(34px, 4vw, 58px);
  font-weight: 300;
  line-height: 1.02;
  letter-spacing: -0.03em;
  margin: 12px 0 10px;
}
.case-subtitle {
  color: var(--slate-400);
  font-size: 17px;
  line-height: 1.55;
  margin: 0 0 20px;
}
.case-meta-row { display: flex; flex-wrap: wrap; gap: 26px; margin-bottom: 16px; }
.case-meta-item { display: flex; flex-direction: column; gap: 3px; }
.meta-label { font-family: var(--mono); font-size: 10px; letter-spacing: 0.10em; text-transform: uppercase; color: var(--slate-500); }
.meta-value { font-size: 14px; color: var(--ink); }
.case-stack-pills { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; }
.case-stack-pills .pill {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid rgba(94,220,255,0.22);
  background: rgba(94,220,255,0.06);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  color: var(--cyan-400);
}

/* KPI sidebar */
.cpanel-metrics-col { display: flex; flex-direction: column; gap: 10px; }
.kpi-card {
  padding: 14px;
  border: 1px solid var(--navy-600);
  border-radius: var(--radius-md);
  background: var(--navy-900);
  text-align: center;
}
.kpi-card.kpi-green { border-color: rgba(74,222,128,0.25); background: rgba(74,222,128,0.04); }
.kpi-value { display: block; font-size: 24px; font-weight: 300; letter-spacing: -0.02em; color: var(--cyan-400); line-height: 1.1; }
.kpi-card.kpi-green .kpi-value { color: var(--ok); }
.kpi-label { display: block; font-family: var(--mono); font-size: 9px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--slate-500); margin-top: 4px; }

/* ─── Sections ─── */
.case-section { margin-bottom: 40px; }
.case-section h3 { font-size: 20px; font-weight: 500; margin: 0 0 14px; letter-spacing: -0.01em; }
.case-section p { color: var(--slate-400); font-size: 15.5px; line-height: 1.7; margin: 0 0 12px; max-width: 820px; }
.case-section ul { color: var(--slate-400); font-size: 15.5px; line-height: 1.7; margin: 0 0 12px; padding-left: 22px; max-width: 820px; }
.case-section li { margin-bottom: 9px; }
.case-section li strong { color: var(--ink); }

/* ─── Two-col layout ─── */
.two-col-layout { display: grid; grid-template-columns: 1fr 320px; gap: 32px; align-items: start; }

/* ─── Charts ─── */
.chart-box { padding: 20px; background: var(--navy-900); border: 1px solid var(--navy-600); border-radius: var(--radius-lg); }
.chart-title { font-family: var(--mono); font-size: 10px; letter-spacing: 0.10em; text-transform: uppercase; color: var(--slate-500); margin-bottom: 12px; }
.bar-chart { display: flex; flex-direction: column; gap: 9px; }
.bar-row { display: grid; grid-template-columns: 76px 1fr 50px; gap: 8px; align-items: center; }
.bar-label { font-family: var(--mono); font-size: 10px; color: var(--slate-500); letter-spacing: 0.04em; }
.bar-track { height: 13px; background: rgba(255,255,255,0.04); border-radius: 3px; overflow: hidden; }
.bar-fill { height: 100%; border-radius: 3px; transition: width 0.8s var(--ease); }
.bar-before { background: rgba(245,196,107,0.4); }
.bar-after  { background: rgba(94,220,255,0.7); }
.bar-green  { background: rgba(74,222,128,0.6); }
.bar-val { font-family: var(--mono); font-size: 10px; font-weight: 500; text-align: right; }
.bar-val.ok   { color: var(--cyan-400); }
.bar-val.warn { color: var(--warn); }
.chart-legend { display: flex; gap: 14px; margin-top: 10px; font-family: var(--mono); font-size: 9px; letter-spacing: 0.06em; color: var(--slate-500); }
.leg-before { color: rgba(245,196,107,0.7); }
.leg-after  { color: rgba(94,220,255,0.7); }

.risk-bars { display: flex; flex-direction: column; gap: 7px; }
.risk-row { display: grid; grid-template-columns: 40px 1fr 22px; gap: 8px; align-items: center; }
.risk-label { font-family: var(--mono); font-size: 10px; color: var(--slate-500); }
.risk-track { height: 11px; background: rgba(255,255,255,0.04); border-radius: 3px; overflow: hidden; }
.risk-fill { height: 100%; border-radius: 3px; }
.risk-high { background: rgba(248,113,113,0.7); }
.risk-med  { background: rgba(245,196,107,0.6); }
.risk-low  { background: rgba(94,220,255,0.4); }
.risk-count { font-family: var(--mono); font-size: 10px; color: var(--slate-400); text-align: right; }

/* ─── Pipeline diagram ─── */
.pipeline-diagram {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
  padding: 18px 0;
  margin: 18px 0 22px;
  overflow-x: auto;
}
.pipe-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  padding: 9px 12px;
  min-width: 76px;
  border: 1px solid var(--navy-600);
  border-radius: var(--radius-md);
  background: var(--navy-900);
  text-align: center;
  flex-shrink: 0;
}
.pipe-node.pipe-input  { border-color: rgba(94,220,255,0.3); background: rgba(94,220,255,0.05); }
.pipe-node.pipe-output { border-color: rgba(74,222,128,0.3); background: rgba(74,222,128,0.05); }
.pipe-node.pipe-qa     { border-color: rgba(245,196,107,0.3); background: rgba(245,196,107,0.04); }
.pipe-node.pipe-human  { border-color: rgba(167,139,250,0.3); background: rgba(167,139,250,0.04); }
.pipe-node.pipe-parallel-group { border-color: rgba(94,220,255,0.4); background: rgba(94,220,255,0.06); border-style: dashed; min-width: 96px; }
.pipe-id { font-family: var(--mono); font-size: 9px; font-weight: 500; color: var(--cyan-400); letter-spacing: 0.04em; }
.pipe-name { font-size: 11px; font-weight: 500; color: var(--ink); line-height: 1.3; white-space: pre-line; text-align: center; }
.pipe-sub { font-family: var(--mono); font-size: 9px; color: var(--slate-500); text-align: center; line-height: 1.3; }
.pipe-icon { font-size: 13px; color: var(--cyan-400); }
.pipe-node.pipe-output .pipe-icon { color: var(--ok); }
.pipe-arrow { width: 20px; height: 2px; background: var(--navy-600); position: relative; flex-shrink: 0; }
.pipe-arrow::after { content: ''; position: absolute; right: -1px; top: 50%; transform: translateY(-50%); border: 4px solid transparent; border-left-color: var(--navy-500); }

/* ─── Arch node list ─── */
.arch-flow { display: grid; gap: 9px; }
.arch-node { display: grid; grid-template-columns: 52px 152px 1fr; gap: 14px; align-items: start; padding: 13px 15px; border: 1px solid var(--navy-600); border-radius: var(--radius-md); background: rgba(7,17,31,0.6); transition: border-color .2s var(--ease); }
.arch-node:hover { border-color: rgba(94,220,255,0.25); }
.arch-node-id { font-family: var(--mono); font-size: 10px; font-weight: 500; color: var(--cyan-400); background: rgba(94,220,255,0.08); border-radius: var(--radius-sm); padding: 3px 6px; text-align: center; align-self: start; }
.arch-node-name { font-size: 13px; font-weight: 500; color: var(--ink); padding-top: 1px; line-height: 1.4; }
.arch-node-desc { font-size: 13px; line-height: 1.65; color: var(--slate-400); }

/* ─── Detail blocks ─── */
.case-detail-block { margin: 18px 0; padding: 20px; border-left: 2px solid var(--cyan-400); background: rgba(94,220,255,0.02); border-radius: 0 var(--radius-md) var(--radius-md) 0; }
.case-detail-block h4 { font-size: 14px; font-weight: 500; margin: 0 0 10px; color: var(--ink); }
.case-detail-block p { color: var(--slate-400); font-size: 14px; line-height: 1.65; margin: 0 0 10px; max-width: 800px; }
.case-detail-block p:last-child { margin-bottom: 0; }
.case-detail-block p strong { color: var(--ink); }

.case-code { margin: 12px 0 0; padding: 16px; border-radius: var(--radius-md); background: var(--navy-900); border: 1px solid var(--navy-600); overflow-x: auto; }
.case-code code { font-family: var(--mono); font-size: 12px; line-height: 1.7; color: var(--slate-400); white-space: pre; }

/* ─── Challenges ─── */
.challenge-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; }
.challenge-item { display: flex; gap: 12px; padding: 16px; border: 1px solid var(--navy-600); border-radius: var(--radius-md); background: var(--navy-900); }
.challenge-week { font-family: var(--mono); font-size: 11px; font-weight: 500; color: var(--warn); flex-shrink: 0; padding-top: 1px; letter-spacing: 0.04em; }
.challenge-item strong { display: block; font-size: 13px; font-weight: 500; color: var(--ink); margin-bottom: 5px; }
.challenge-item p { margin: 0; font-size: 13px; line-height: 1.6; color: var(--slate-400); }

/* ─── Results ─── */
.results-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 12px; margin-bottom: 18px; }
.result-stat { display: flex; flex-direction: column; gap: 4px; padding: 18px; border: 1px solid var(--navy-600); border-radius: var(--radius-md); background: var(--navy-900); text-align: center; }
.result-stat.rs-highlight { border-color: rgba(94,220,255,0.3); background: rgba(94,220,255,0.05); }
.rs-val { font-size: 28px; font-weight: 300; letter-spacing: -0.02em; color: var(--cyan-400); line-height: 1.1; }
.rs-highlight .rs-val { color: var(--ok); }
.rs-label { font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--slate-400); }
.rs-sub { font-size: 12px; color: var(--slate-500); line-height: 1.4; }
.result-note { color: var(--slate-400); font-size: 15px; line-height: 1.65; margin: 0; max-width: 800px; }

/* ─── Timeline ─── */
.case-timeline { display: grid; gap: 7px; }
.timeline-item { display: grid; grid-template-columns: 66px 1fr; gap: 14px; padding: 12px 16px; border: 1px solid var(--navy-600); border-radius: var(--radius-md); background: var(--navy-900); align-items: center; }
.timeline-week { font-family: var(--mono); font-size: 11px; font-weight: 500; color: var(--cyan-400); letter-spacing: 0.02em; }
.timeline-desc { font-size: 13.5px; line-height: 1.5; color: var(--slate-400); }

/* ─── Quote ─── */
.case-quote { margin-top: 36px; padding: 28px 32px; border: 1px solid var(--navy-600); border-radius: var(--radius-lg); background: linear-gradient(135deg, rgba(94,220,255,0.03), transparent 60%); border-left: 3px solid rgba(94,220,255,0.4); }
.case-quote blockquote { margin: 0 0 12px; font-size: 17px; font-weight: 300; line-height: 1.65; color: var(--ink); font-style: italic; }
.case-quote cite { font-family: var(--mono); font-size: 11px; font-style: normal; letter-spacing: 0.04em; color: var(--slate-500); }

/* ═══════════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════════ */
@media (max-width: 1240px) {
  .pipeline-diagram { flex-wrap: wrap; gap: 6px; }
  .pipe-arrow { display: none; }
  .two-col-layout { grid-template-columns: 1fr 280px; gap: 24px; }
}

@media (max-width: 1080px) {
  .case-hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .case-signal { min-height: 180px; }
  .case-grid { grid-template-columns: 1fr; }
  .cpanel-header { grid-template-columns: 1fr; gap: 24px; }
  .cpanel-metrics-col { flex-direction: row; flex-wrap: wrap; }
  .kpi-card { flex: 1 1 calc(50% - 5px); }
  .arch-node { grid-template-columns: 52px 1fr; }
  .arch-node-desc { grid-column: 1 / -1; }
  .case-panel-inner { padding: 36px; }
  .challenge-grid { grid-template-columns: 1fr; }
  .results-grid { grid-template-columns: repeat(2,1fr); }
  .two-col-layout { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .case-hero { padding: 56px 0 64px; }
  .case-card-inner { min-height: 300px; padding: 20px; }
  .case-card h3 { font-size: 24px; }
  .case-panel-inner { padding: 20px 16px; }
  .arch-node { grid-template-columns: 1fr; gap: 5px; }
  .arch-node-id { width: fit-content; }
  .results-grid { grid-template-columns: 1fr 1fr; }
  .rs-val { font-size: 22px; }
  .timeline-item { grid-template-columns: 50px 1fr; gap: 10px; }
  .case-quote { padding: 20px; }
  .case-quote blockquote { font-size: 15px; }
  .kpi-value { font-size: 20px; }
  .cpanel-title-col h2 { font-size: 30px; }
}