/* Stimulus Instruments home template.
   Prefixed .si- throughout so nothing here can collide with Divi or WooCommerce. */

.si {
  --si-brand: #0f4b64;
  --si-brand-dk: #0b3a4d;
  --si-brand-deep: #072a38;
  --si-tint: #e7eff2;
  --si-ground: #ffffff;
  --si-alt: #f4f7f8;
  --si-ink: #1f2d33;
  --si-body: #55666f;
  --si-line: #dfe6e9;
  --si-line-soft: #eef2f4;
  --si-head: 'Montserrat', Helvetica, Arial, sans-serif;
  --si-text: 'Source Sans Pro', Helvetica, Arial, sans-serif;
  --si-gut: clamp(1.1rem, 4vw, 3rem);

  font-family: var(--si-text);
  color: var(--si-body);
  font-size: 16.5px;
  line-height: 1.65;
}

.si *, .si *::before, .si *::after { box-sizing: border-box; }

.si-wrap { max-width: 1200px; margin-inline: auto; padding-inline: var(--si-gut); }

.si h1, .si h2, .si h3, .si h4 {
  font-family: var(--si-head); color: var(--si-ink); margin: 0;
  font-weight: 700; text-wrap: balance; padding: 0;
}
.si h1 { font-size: clamp(1.9rem, 4.4vw, 3.05rem); line-height: 1.1; letter-spacing: -.02em; }
.si h2 { font-size: clamp(1.45rem, 2.9vw, 2.05rem); line-height: 1.2; letter-spacing: -.015em; }
.si h3 { font-size: 1.125rem; line-height: 1.3; font-weight: 600; }
.si h4 { font-size: .9375rem; font-weight: 600; }
.si p { margin: 0; }
.si img { max-width: 100%; height: auto; }
.si a { text-decoration: none; }
.si :focus-visible { outline: 2px solid var(--si-brand); outline-offset: 2px; }

.si-eyebrow {
  font-family: var(--si-head); font-size: .6875rem; font-weight: 600;
  letter-spacing: .18em; text-transform: uppercase; color: var(--si-brand);
}
.si-code {
  font-family: var(--si-head); font-size: .75rem; font-weight: 600;
  letter-spacing: .1em; color: var(--si-brand); font-variant-numeric: tabular-nums;
}
.si-lede { font-size: 1.0625rem; max-width: 66ch; }

.si-btn {
  display: inline-block; font-family: var(--si-head); font-size: .75rem; font-weight: 600;
  letter-spacing: .12em; text-transform: uppercase; padding: .8rem 1.5rem;
  background: var(--si-brand); color: #fff !important; border: 1px solid var(--si-brand);
  border-radius: 2px; cursor: pointer; transition: background .18s, color .18s;
}
.si-btn:hover, .si-btn:focus-visible { background: var(--si-brand-dk); border-color: var(--si-brand-dk); color: #fff !important; }
.si-ghost { background: transparent; color: var(--si-brand) !important; }
.si-ghost:hover, .si-ghost:focus-visible { background: var(--si-brand); color: #fff !important; }
.si-small { padding: .55rem 1rem; font-size: .6875rem; }
.si-on-dark { background: #fff; color: var(--si-brand-deep) !important; border-color: #fff; }
.si-on-dark:hover { background: var(--si-brand-deep); color: #fff !important; }

/* ---------------- hero ---------------- */
.si-hero { position: relative; overflow: hidden; background: var(--si-alt); }
.si-slides { display: flex; transition: transform .62s cubic-bezier(.4,.05,.2,1); }
.si-slide {
  min-width: 100%; position: relative;
  background-position: center right; background-size: cover; background-repeat: no-repeat;
}
.si-slide::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(100deg, #fff 0%, rgba(255,255,255,.96) 38%, rgba(255,255,255,.72) 55%, rgba(255,255,255,0) 78%);
}
.si-slide-in {
  position: relative; z-index: 2; min-height: clamp(400px, 56vh, 560px);
  display: flex; flex-direction: column; justify-content: center;
  padding-block: clamp(2.6rem, 6vw, 4.4rem);
}
.si-slide-copy { max-width: 47%; }
.si-slide-copy .si-eyebrow { display: block; margin-bottom: .7rem; }
.si-slide-copy h1 { margin-bottom: .9rem; }
.si-slide-copy h1 span { color: var(--si-brand); display: block; }
.si-slide-copy > p { margin-bottom: 1.6rem; max-width: 42ch; }
.si-slide-tag {
  display: inline-block; margin-left: .8rem; color: var(--si-brand);
  font-family: var(--si-head); font-size: .6875rem; font-weight: 700;
  letter-spacing: .14em; text-transform: uppercase;
  border: 1px solid rgba(15,75,100,.35); padding: .35rem .7rem; border-radius: 2px;
}
@media (max-width: 900px) { .si-slide-copy { max-width: 66%; } }
@media (max-width: 640px) {
  .si-slide-copy { max-width: 100%; }
  .si-slide-tag { margin-left: 0; margin-top: .8rem; }
  .si-slide::before { background: linear-gradient(180deg, rgba(255,255,255,.97) 0%, rgba(255,255,255,.9) 58%, rgba(255,255,255,.55) 100%); }
}

.si-hero-nav {
  position: absolute; inset-inline: 0; top: 50%; transform: translateY(-50%);
  display: flex; justify-content: space-between; pointer-events: none;
  padding-inline: .5rem; z-index: 3;
}
.si-hero-nav button {
  pointer-events: auto; width: 42px; height: 42px; border-radius: 50%;
  border: 1px solid rgba(15,75,100,.25); background: rgba(255,255,255,.9);
  color: var(--si-ink); font-size: 1.15rem; cursor: pointer;
  display: grid; place-items: center;
}
.si-hero-nav button:hover { background: var(--si-brand); color: #fff; border-color: var(--si-brand); }
@media (max-width: 620px) { .si-hero-nav { display: none; } }

.si-dots { position: absolute; bottom: 1.1rem; left: 50%; transform: translateX(-50%); display: flex; gap: .5rem; z-index: 3; }
.si-dots button { width: 30px; height: 4px; border: 0; border-radius: 2px; background: rgba(15,75,100,.25); cursor: pointer; padding: 0; }
.si-dots button[aria-current="true"] { background: var(--si-brand); }

/* ---------------- pillars ---------------- */
.si-pillars { display: grid; grid-template-columns: repeat(4, 1fr); background: var(--si-brand); }
.si-pillar { padding: 1.6rem 1.5rem; border-right: 1px solid rgba(255,255,255,.16); }
.si-pillar:last-child { border-right: 0; }
.si-pillar h3 { color: #fff; margin-bottom: .3rem; }
.si-pillar p { font-size: .8125rem; color: #d3e4eb; }
.si-num { font-family: var(--si-head); font-size: .6875rem; font-weight: 700; letter-spacing: .16em; color: rgba(255,255,255,.55); display: block; margin-bottom: .5rem; }
@media (max-width: 860px) { .si-pillars { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 460px) { .si-pillars { grid-template-columns: 1fr; } }

/* ---------------- sections ---------------- */
.si-section { padding: clamp(2.8rem, 6vw, 4.6rem) 0; }
.si-tint { background: var(--si-alt); }
.si-sec-head { max-width: 760px; margin-bottom: 2.4rem; }
.si-sec-head h2 { margin: .55rem 0 .75rem; }
.si-sec-head .si-eyebrow { display: block; }

/* ---------------- family rows ---------------- */
.si-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.6rem, 4vw, 3.6rem);
  align-items: center; padding: clamp(1.6rem, 3vw, 2.4rem) 0;
  border-bottom: 1px solid var(--si-line-soft);
}
.si-row:last-child { border-bottom: 0; }
.si-rev .si-fig { order: -1; }
@media (max-width: 800px) {
  .si-row, .si-rev { grid-template-columns: 1fr; }
  .si-row .si-fig, .si-rev .si-fig { order: -1; }
}
.si-row-body .si-eyebrow { display: block; }
.si-row-body h2 { margin: .35rem 0 .7rem; }
.si-row-body .si-btn { margin-top: 1.3rem; }

.si-codes { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: 1.1rem; }
.si-chip {
  font-family: var(--si-head); font-size: .6875rem; font-weight: 600; letter-spacing: .08em;
  border: 1px solid var(--si-line); background: transparent; padding: .34rem .58rem;
  border-radius: 2px; color: var(--si-body); cursor: pointer;
  transition: border-color .15s, color .15s, background .15s;
}
.si-chip:hover, .si-chip:focus-visible { border-color: var(--si-brand); color: var(--si-brand); background: var(--si-tint); }
.si-chip[aria-pressed="true"] { background: var(--si-brand); border-color: var(--si-brand); color: #fff; }

.si-fig {
  margin: 0; position: relative; background: #fff;
  border: 1px solid var(--si-line); border-radius: 3px;
  display: grid; place-items: center; padding: 1.4rem; min-height: 240px;
}
.si-fig-link { display: block; width: 80%; }
.si-fig img { width: 100%; display: block; transition: opacity .18s; }
.si-fig.is-swapping img { opacity: .25; }
.si-fig figcaption {
  position: absolute; left: 0; right: 0; bottom: 0; padding: .7rem .9rem;
  display: flex; flex-direction: column; gap: .1rem;
  background: linear-gradient(to top, rgba(255,255,255,.96), rgba(255,255,255,0));
}
.si-fig figcaption b { font-family: var(--si-head); font-size: .6875rem; font-weight: 700; letter-spacing: .1em; color: var(--si-brand); }
.si-fig figcaption span { font-size: .8125rem; color: var(--si-body); line-height: 1.35; }

/* ---------------- product grid ---------------- */
.si-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.2rem; }
@media (max-width: 900px) { .si-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .si-grid { grid-template-columns: 1fr; } }
.si-card {
  border: 1px solid var(--si-line); border-radius: 3px; background: #fff;
  display: flex; flex-direction: column; overflow: hidden;
  transition: border-color .18s, transform .18s;
}
.si-card:hover { border-color: var(--si-brand); transform: translateY(-2px); }
.si-card-img { background: #fff; padding: 1.1rem; display: grid; place-items: center; border-bottom: 1px solid var(--si-line-soft); }
.si-card-img img { width: 86%; display: block; }
.si-card-body { padding: .95rem 1rem 1.1rem; display: flex; flex-direction: column; gap: .4rem; flex: 1; }
.si-card-body h4 { line-height: 1.35; }
.si-card-body h4 a { color: var(--si-ink); }
.si-card-body h4 a:hover { color: var(--si-brand); }
.si-card-body .si-btn { margin-top: auto; text-align: center; }

/* ---------------- faq ---------------- */
.si-faq { max-width: 860px; }
.si-faq details { border-bottom: 1px solid var(--si-line); }
.si-faq summary {
  cursor: pointer; list-style: none; padding: 1.05rem 2.2rem 1.05rem 0;
  position: relative; font-family: var(--si-head); font-size: .9375rem;
  font-weight: 600; color: var(--si-ink);
}
.si-faq summary::-webkit-details-marker { display: none; }
.si-faq summary::after {
  content: "+"; position: absolute; right: .3rem; top: 50%;
  transform: translateY(-50%); color: var(--si-brand); font-size: 1.15rem;
}
.si-faq details[open] summary::after { content: "\2013"; }
.si-faq details p { padding: 0 2.2rem 1.15rem 0; font-size: .9375rem; max-width: 70ch; }

/* ---------------- closing band ---------------- */
.si-band { background: var(--si-brand); }
.si-band h2 { color: #fff; }
.si-band p { color: #d3e4eb; margin-top: .5rem; max-width: 56ch; }
.si-band .si-wrap {
  display: grid; grid-template-columns: 1fr auto; gap: 2rem; align-items: center;
  padding-block: clamp(2rem, 4vw, 3rem);
}
@media (max-width: 760px) { .si-band .si-wrap { grid-template-columns: 1fr; } }

@media (prefers-reduced-motion: reduce) {
  .si-slides, .si-fig img, .si-card { transition: none !important; }
}