/* AffixIO /collab — collaboration landing.
   Editorial, restrained, tactile. Reuses site-chrome tokens; adds collab layout. */

.collab-page {
  --pine: #295f4e;
  --pine-deep: #1f4a3c;
  --bronze: #8a6742;
  --refusal: #8c3a32;
  --graphite: #1d2128;
  --chalk: #f5f2ea;
  --card: #f0ece2;
  --line: #cfc7b8;
  --chip: #ebe4d6;
  --muted: #4c5868;
  --ink: #1a1e24;
  --paper: #fbfaf6;
}

body { background: var(--chalk, #f5f2ea); }

.collab-page {
  color: var(--graphite);
  font-family: "DM Sans", "Segoe UI", sans-serif;
  line-height: 1.6;
  background: var(--chalk, #f5f2ea);
}

.collab-page * { box-sizing: border-box; }

/* main.site-chrome already constrains and centres the column; shell is a passthrough */
.collab-page .shell {
  width: 100%;
  max-width: 100%;
  margin: 0;
  padding: 0;
}

.collab-page .kicker {
  font-family: "DM Mono", ui-monospace, Menlo, monospace;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bronze);
  margin: 0 0 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.collab-page .kicker::before {
  content: "";
  width: 1.6rem;
  height: 1px;
  background: var(--bronze);
  display: inline-block;
}

/* ---------- Hero ---------- */
.collab-hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: center;
  padding: clamp(1.5rem, 4vw, 3.25rem) 0 clamp(2rem, 4vw, 3.5rem);
  border-bottom: 1px solid var(--line);
}

.collab-hero h1 {
  font-size: clamp(1.8rem, 3.6vw, 2.5rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  font-weight: 700;
  margin: 0 0 1rem;
  color: var(--ink);
}

.collab-hero h1 .mark {
  color: var(--pine);
  position: relative;
  white-space: nowrap;
}

.collab-hero .lead {
  font-size: clamp(1rem, 1.5vw, 1.16rem);
  color: var(--muted);
  max-width: 46ch;
  margin: 0 0 1.6rem;
}

.collab-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1.6rem;
}

.collab-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border: 1px solid var(--line);
  background: var(--chip);
  color: var(--graphite);
  border-radius: 6px;
  padding: 0.72rem 1.15rem;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.collab-btn:hover { transform: translateY(-1px); border-color: var(--bronze); }

.collab-btn--primary {
  background: var(--pine);
  border-color: var(--pine);
  color: #f5f2ea;
}

.collab-btn--primary:hover { background: var(--pine-deep); border-color: var(--pine-deep); }

.collab-hero-note {
  font-size: 0.82rem;
  color: var(--muted);
  margin: 0;
}

.collab-hero-note a { color: var(--pine); font-weight: 600; }

.collab-hero-figure {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--card);
  box-shadow: 0 24px 60px rgba(20, 26, 24, 0.16);
}

.collab-hero-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 3 / 2;
}

.collab-hero-figure figcaption {
  position: absolute;
  left: 0;
  bottom: 0;
  right: 0;
  padding: 0.85rem 1rem;
  font-family: "DM Mono", ui-monospace, Menlo, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  color: #f2efe7;
  background: linear-gradient(to top, rgba(20, 26, 24, 0.82), rgba(20, 26, 24, 0));
}

/* ---------- Ticker ---------- */
.collab-ticker {
  border-bottom: 1px solid var(--line);
  overflow: hidden;
  padding: 0.85rem 0;
}

.collab-ticker-track {
  display: flex;
  gap: 2.4rem;
  align-items: center;
  white-space: nowrap;
  font-family: "DM Mono", ui-monospace, Menlo, monospace;
  font-size: 0.78rem;
  color: var(--muted);
  animation: collab-marquee 34s linear infinite;
  width: max-content;
}

.collab-ticker:hover .collab-ticker-track { animation-play-state: paused; }

.collab-ticker-track span { display: inline-flex; align-items: center; gap: 0.55rem; }
.collab-ticker-track span::before {
  content: "";
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--pine);
}

@keyframes collab-marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

@media (prefers-reduced-motion: reduce) {
  .collab-ticker-track { animation: none; }
}

/* ---------- Section scaffolding ---------- */
.collab-section {
  padding: clamp(2.4rem, 5vw, 4rem) 0;
  border-bottom: 1px solid var(--line);
}

.collab-section-head { max-width: 62ch; margin: 0 0 2rem; }

.collab-section-head h2 {
  font-size: clamp(1.25rem, 2.2vw, 1.6rem);
  letter-spacing: -0.02em;
  line-height: 1.16;
  margin: 0 0 0.6rem;
  color: var(--ink);
}

.collab-section-head p {
  font-size: 1rem;
  color: var(--muted);
  margin: 0;
}

/* ---------- Interactive selector ---------- */
.collab-picker {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: clamp(1rem, 3vw, 2.25rem);
  align-items: start;
}

.collab-tablist {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.4rem;
  background: var(--paper);
  position: sticky;
  top: 1rem;
}

.collab-tab {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  width: 100%;
  text-align: left;
  border: 0;
  background: transparent;
  color: var(--graphite);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.72rem 0.85rem;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.collab-tab .tnum {
  font-family: "DM Mono", ui-monospace, Menlo, monospace;
  font-size: 0.72rem;
  color: var(--bronze);
  font-weight: 500;
}

.collab-tab:hover { background: var(--chip); }

.collab-tab[aria-selected="true"] {
  background: var(--pine);
  color: #f5f2ea;
}
.collab-tab[aria-selected="true"] .tnum { color: #d7c8ad; }

.collab-panels { min-height: 320px; }

.collab-panel { display: none; animation: collab-fade 0.35s ease both; }
.collab-panel[data-active="true"] { display: block; }

@keyframes collab-fade {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

.collab-panel h3 {
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  letter-spacing: -0.02em;
  margin: 0 0 0.5rem;
  color: var(--ink);
}

.collab-panel .panel-lead {
  font-size: 1.02rem;
  color: var(--muted);
  margin: 0 0 1.5rem;
  max-width: 58ch;
}

.collab-panel-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem 2rem;
}

.collab-panel-grid h4 {
  font-family: "DM Mono", ui-monospace, Menlo, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--pine);
  margin: 0 0 0.7rem;
}

.collab-list { list-style: none; margin: 0; padding: 0; }
.collab-list li {
  position: relative;
  padding: 0.35rem 0 0.35rem 1.5rem;
  font-size: 0.92rem;
  border-bottom: 1px dashed var(--line);
}
.collab-list li:last-child { border-bottom: 0; }
.collab-list li::before {
  content: "YES";
  position: absolute;
  left: 0;
  top: 0.5rem;
  font-family: "DM Mono", ui-monospace, Menlo, monospace;
  font-size: 0.52rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--pine);
}

.collab-steps { counter-reset: cstep; list-style: none; margin: 0; padding: 0; }
.collab-steps li {
  counter-increment: cstep;
  position: relative;
  padding: 0.5rem 0 0.5rem 2.4rem;
  font-size: 0.92rem;
  color: var(--muted);
}
.collab-steps li strong { color: var(--graphite); font-weight: 600; }
.collab-steps li::before {
  content: counter(cstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.45rem;
  font-family: "DM Mono", ui-monospace, Menlo, monospace;
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--bronze);
}

.collab-panel-foot {
  margin-top: 1.6rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.2rem;
  align-items: center;
  font-size: 0.86rem;
}
.collab-panel-foot a { color: var(--pine); font-weight: 600; }

/* ---------- Ways / image cards ---------- */
.collab-ways {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.1rem;
}

.collab-way {
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  background: var(--paper);
  display: flex;
  flex-direction: column;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.collab-way:hover {
  transform: translateY(-3px);
  border-color: var(--bronze);
  box-shadow: 0 18px 44px rgba(20, 26, 24, 0.12);
}

.collab-way img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.collab-way-body { padding: 1.1rem 1.15rem 1.25rem; }
.collab-way-body h3 { margin: 0 0 0.4rem; font-size: 1.05rem; letter-spacing: -0.01em; }
.collab-way-body p { margin: 0; font-size: 0.9rem; color: var(--muted); }

/* ---------- Proof strip ---------- */
.collab-proof {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}

.collab-proof div {
  background: var(--paper);
  padding: 1.4rem 1.1rem;
}

.collab-proof .num {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--pine);
  line-height: 1;
  margin-bottom: 0.35rem;
}

.collab-proof .lbl {
  font-size: 0.82rem;
  color: var(--muted);
}

/* ---------- FAQ ---------- */
.collab-faq { display: grid; gap: 0.55rem; max-width: 820px; }

.collab-faq details {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--paper);
  overflow: hidden;
}

.collab-faq summary {
  list-style: none;
  cursor: pointer;
  padding: 1rem 1.1rem;
  font-weight: 600;
  font-size: 0.98rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
}
.collab-faq summary::-webkit-details-marker { display: none; }
.collab-faq summary::after {
  content: "+";
  color: var(--bronze);
  font-weight: 700;
  font-size: 1.2rem;
  transition: transform 0.2s ease;
}
.collab-faq details[open] summary { border-bottom: 1px solid var(--line); }
.collab-faq details[open] summary::after { content: "\2212"; }
.collab-faq details p {
  margin: 0;
  padding: 0.95rem 1.1rem 1.15rem;
  font-size: 0.92rem;
  color: var(--muted);
}
.collab-faq details a { color: var(--pine); font-weight: 600; }

/* ---------- CTA ---------- */
.collab-cta {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: clamp(1.25rem, 3vw, 2.5rem);
  align-items: center;
  border: 1px solid var(--pine);
  border-radius: 16px;
  padding: clamp(1.5rem, 4vw, 2.6rem);
  background:
    linear-gradient(180deg, rgba(41, 95, 78, 0.06), rgba(41, 95, 78, 0.02));
}

.collab-cta h2 {
  font-size: clamp(1.3rem, 2.4vw, 1.75rem);
  letter-spacing: -0.02em;
  margin: 0 0 0.7rem;
  color: var(--ink);
}

.collab-cta p { margin: 0 0 0.6rem; color: var(--muted); font-size: 0.98rem; }

.collab-cta-panel {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--paper);
  padding: 1.4rem;
  text-align: center;
}

.collab-cta-panel .collab-btn { width: 100%; justify-content: center; }
.collab-cta-panel .note {
  font-size: 0.84rem;
  color: var(--muted);
  margin: 0.9rem 0 0;
}
.collab-cta-panel .note a { color: var(--pine); font-weight: 600; }

/* ---------- Reveal on scroll ---------- */
.collab-reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.collab-reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .collab-reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .collab-hero { grid-template-columns: 1fr; }
  .collab-hero-figure { order: -1; }
  .collab-picker { grid-template-columns: 1fr; }
  .collab-tablist {
    position: static;
    flex-direction: row;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .collab-tab { white-space: nowrap; }
  .collab-panel-grid { grid-template-columns: 1fr; }
  .collab-ways { grid-template-columns: 1fr; }
  .collab-proof { grid-template-columns: 1fr 1fr; }
  .collab-cta { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  .collab-proof { grid-template-columns: 1fr; }
}