/* ============================================================
   Compute! Paris 2026 — Sponsors page
   Fully self-contained. Loaded only on sponsors.html.
   ============================================================ */

/* ── STAT STRIP ── */
.sp-stats {
  background: var(--navy);
  border-bottom: 1px solid rgba(168,216,240,.08);
  padding: 40px 24px;
  position: relative;
  overflow: hidden;
}
.sp-stats::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 200% at 50% -60%, rgba(242,201,76,.07) 0%, transparent 60%);
  pointer-events: none;
}
.sp-stats__grid {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  position: relative;
  z-index: 1;
}
.sp-stats__item {
  text-align: center;
  padding: 20px 12px;
  border-right: 1px solid rgba(168,216,240,.07);
}
.sp-stats__item:last-child { border-right: none; }
.sp-stats__num {
  font-family: var(--font-head);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1;
  background: linear-gradient(135deg, var(--beam-gold), var(--beam-orange));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.sp-stats__label {
  margin-top: 8px;
  font-size: .78rem;
  color: var(--muted);
  font-family: var(--font-head);
  text-transform: uppercase;
  letter-spacing: .1em;
}

/* ── AUDIENCE ── */
.sp-audience {
  background-color: var(--space);
  background-image: url('../images/backgrounds/DarkBG-Stars.jpg');
  background-size: cover;
  background-position: center;
  color: var(--cream);
  padding: var(--pad);
  position: relative;
  overflow: hidden;
}
.sp-audience > .container { position: relative; z-index: 1; }
.sp-audience__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  margin-top: 52px;
  border-radius: var(--r-lg);
  overflow: hidden;
}
.sp-audience__cell {
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(168,216,240,.07);
  padding: 44px 32px;
  transition: background var(--t);
}
.sp-audience__cell:hover { background: rgba(168,216,240,.06); }
.sp-audience__icon { font-size: 2.2rem; margin-bottom: 14px; }
.sp-audience__frac {
  font-family: var(--font-head);
  font-size: 2.6rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--beam-gold), var(--beam-orange));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 10px;
}
.sp-audience__cell h3 {
  font-size: 1rem;
  color: var(--cream);
  margin-bottom: 8px;
  font-family: var(--font-head);
}
.sp-audience__cell p {
  font-size: .88rem;
  color: var(--cream-dim);
  max-width: none;
  line-height: 1.65;
}

/* ── TIER CARDS ── */
.sp-tiers {
  background-color: var(--navy);
  background-image: url('../images/backgrounds/BlueBG-Stars.jpg');
  background-size: cover;
  background-position: center;
  color: var(--cream);
  padding: var(--pad);
  position: relative;
  overflow: hidden;
}
.sp-tiers > .container { position: relative; z-index: 1; }
.sp-tiers__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 52px;
  align-items: start;
}
.sp-tier-card {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(168,216,240,.1);
  border-radius: var(--r-lg);
  padding: 0 0 28px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: transform var(--t), box-shadow var(--t), border-color var(--t);
}
.sp-tier-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 52px rgba(0,0,0,.35);
}
.sp-tier-card__bar {
  height: 4px;
  width: 100%;
  flex-shrink: 0;
}
.sp-tier-card--silver   .sp-tier-card__bar { background: var(--muted); }
.sp-tier-card--gold     .sp-tier-card__bar { background: linear-gradient(90deg, var(--beam-gold), var(--beam-orange)); }
.sp-tier-card--platinum .sp-tier-card__bar { background: var(--beam-orange); }
.sp-tier-card--diamond  .sp-tier-card__bar { background: linear-gradient(90deg, var(--saucer), var(--blue-horizon)); }

.sp-tier-card__inner { padding: 24px 24px 0; flex: 1; display: flex; flex-direction: column; }

.sp-tier-card__name {
  font-family: var(--font-head);
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .2em;
  margin-bottom: 10px;
}
.sp-tier-card--silver   .sp-tier-card__name { color: var(--muted); }
.sp-tier-card--gold     .sp-tier-card__name { color: var(--beam-gold); }
.sp-tier-card--platinum .sp-tier-card__name { color: var(--beam-orange); }
.sp-tier-card--diamond  .sp-tier-card__name { color: var(--saucer); }

.sp-tier-card__price {
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 800;
  color: var(--cream);
  line-height: 1;
  margin-bottom: 22px;
}
.sp-tier-card__price sub {
  font-size: .85rem;
  font-weight: 400;
  color: var(--muted);
  vertical-align: baseline;
  margin-right: 2px;
}

/* "Popular" badge */
.sp-tier-card__badge {
  display: inline-block;
  font-size: .62rem;
  font-family: var(--font-head);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  background: linear-gradient(135deg, var(--beam-gold), var(--beam-orange));
  color: var(--navy);
  padding: 3px 10px;
  border-radius: 100px;
  margin-bottom: 14px;
}

.sp-tier-card__perks {
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
  margin-bottom: 24px;
}
.sp-tier-card__perk {
  font-size: .88rem;
  color: var(--cream-dim);
  display: flex;
  align-items: baseline;
  gap: 9px;
  line-height: 1.45;
}
.sp-tier-card__perk-icon {
  flex-shrink: 0;
  font-size: .78rem;
  font-weight: 800;
}
.sp-tier-card--silver   .sp-tier-card__perk-icon { color: var(--muted); }
.sp-tier-card--gold     .sp-tier-card__perk-icon { color: var(--beam-gold); }
.sp-tier-card--platinum .sp-tier-card__perk-icon { color: var(--beam-orange); }
.sp-tier-card--diamond  .sp-tier-card__perk-icon { color: var(--saucer); }

.sp-tier-card__cta {
  padding: 0 24px;
}
.sp-tier-card__cta a {
  display: block;
  width: 100%;
  text-align: center;
  font-size: .88rem;
  padding: 11px 16px;
  border-radius: 8px;
  font-family: var(--font-head);
  font-weight: 600;
  background: rgba(255,255,255,.07);
  color: var(--cream);
  border: 1px solid rgba(168,216,240,.15);
  transition: background var(--t), border-color var(--t);
}
.sp-tier-card__cta a:hover {
  background: rgba(255,255,255,.13);
  border-color: rgba(168,216,240,.3);
}

/* ── BENEFITS MATRIX ── */
.sp-matrix {
  background: var(--cream);
  padding: var(--pad);
}
.sp-matrix__wrap {
  margin-top: 48px;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid rgba(10,22,40,.07);
  box-shadow: 0 4px 40px rgba(10,22,40,.05);
}
.sp-matrix__table {
  width: 100%;
  border-collapse: collapse;
  font-size: .93rem;
  background: #fff;
}
.sp-matrix__table th,
.sp-matrix__table td {
  padding: 15px 18px;
  text-align: center;
  border-bottom: 1px solid rgba(10,22,40,.045);
}
.sp-matrix__table th:first-child,
.sp-matrix__table td:first-child {
  text-align: left;
  padding-left: 28px;
  min-width: 210px;
}
.sp-matrix__table thead th {
  background: var(--navy);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: .82rem;
  padding-top: 22px;
  padding-bottom: 22px;
}
.sp-matrix__table thead th:first-child { color: var(--muted); }
.sp-matrix__table thead .th--silver   { color: var(--muted); }
.sp-matrix__table thead .th--gold     { color: var(--beam-gold); }
.sp-matrix__table thead .th--platinum { color: #f0956a; }
.sp-matrix__table thead .th--diamond  { color: var(--saucer); }
.sp-matrix__price {
  display: block;
  font-size: .8rem;
  font-weight: 700;
  margin-top: 5px;
  opacity: .85;
}
.sp-matrix__table tbody tr:last-child td { border-bottom: none; }
.sp-matrix__table tbody tr:hover td { background: rgba(10,22,40,.018); }
.sp-matrix__table td { color: var(--text-mid); font-weight: 500; }
.sp-matrix__table td:first-child { color: var(--text-dark); }
.sp-check { font-size: 1rem; font-weight: 800; color: var(--navy); }
.sp-dash  { color: rgba(10,22,40,.18); font-size: 1.1rem; }

.sp-matrix__footnote {
  margin-top: 14px;
  font-size: .84rem;
  color: var(--text-mid);
}

/* ── ABOUT (tracks + venue) ── */
.sp-about {
  background: linear-gradient(180deg, var(--cream) 0%, rgba(214,232,245,.4) 100%);
  padding: var(--pad);
}
.sp-about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-top: 52px;
}
.sp-about__card {
  background: #fff;
  border: 1px solid rgba(10,22,40,.06);
  border-radius: var(--r-lg);
  padding: 40px 36px;
  box-shadow: 0 4px 28px rgba(10,22,40,.04);
}
.sp-about__icon { font-size: 2rem; margin-bottom: 18px; }
.sp-about__card h3 {
  font-size: 1.05rem;
  color: var(--navy);
  margin-bottom: 20px;
  font-family: var(--font-head);
}
.sp-about__card ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.sp-about__card li {
  font-size: .92rem;
  color: var(--text-mid);
  padding-left: 22px;
  position: relative;
  line-height: 1.5;
}
.sp-about__card li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--beam-orange);
  font-weight: 700;
}

/* ── ORGANISER ── */
.sp-organiser {
  background-color: var(--space);
  background-image: url('../images/backgrounds/DarkBG-Stars.jpg');
  background-size: cover;
  background-position: center;
  padding: 80px 24px;
  color: var(--cream);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.sp-organiser > .container { position: relative; z-index: 1; }
.sp-organiser__logo-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 40px;
  padding: 32px 72px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(168,216,240,.12);
  border-radius: var(--r-lg);
  transition: background var(--t), border-color var(--t), transform var(--t);
  text-decoration: none;
}
.sp-organiser__logo-wrap:hover {
  background: rgba(255,255,255,.1);
  border-color: rgba(242,201,76,.22);
  transform: translateY(-3px);
}
.sp-organiser__logo-wrap img {
  max-height: 64px;
  width: auto;
  filter: brightness(0) invert(1);
  opacity: .85;
  transition: opacity var(--t);
}
.sp-organiser__logo-wrap:hover img { opacity: 1; }

/* ── DOWNLOAD CTA ── */
.sp-download {
  background: linear-gradient(135deg, var(--navy-mid) 0%, var(--navy) 100%);
  padding: 88px 24px;
  position: relative;
  overflow: hidden;
  text-align: center;
}
.sp-download::before {
  content: '';
  position: absolute;
  top: -80px; left: 50%;
  transform: translateX(-50%);
  width: 640px; height: 320px;
  background: radial-gradient(ellipse, rgba(242,201,76,.1) 0%, transparent 65%);
  pointer-events: none;
}
.sp-download > .container {
  position: relative;
  z-index: 1;
  max-width: 640px;
}
.sp-download h2 {
  color: var(--cream);
  margin-bottom: 16px;
}
.sp-download p {
  color: var(--cream-dim);
  max-width: 48ch;
  margin: 0 auto 40px;
  font-size: 1.05rem;
  line-height: 1.7;
}
.sp-download__actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 40px;
}

/* ── RESPONSIVE ── */
@media (max-width: 1020px) {
  .sp-tiers__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .sp-stats__grid { grid-template-columns: repeat(2, 1fr); }
  .sp-stats__item:nth-child(2) { border-right: none; }
  .sp-audience__grid { grid-template-columns: 1fr; gap: 1px; }
  .sp-tiers__grid { grid-template-columns: 1fr; }
  .sp-about__grid { grid-template-columns: 1fr; }
  .sp-organiser__logo-wrap { padding: 28px 40px; }
  /* Matrix horizontal scroll on small screens */
  .sp-matrix__wrap { overflow-x: auto; }
  .sp-matrix__table { min-width: 480px; }
}
@media (max-width: 480px) {
  .sp-stats__grid { grid-template-columns: repeat(2, 1fr); }
  .sp-about__card { padding: 28px 20px; }
  .sp-tiers__grid { grid-template-columns: 1fr; }
}