/* ================================================================
   Sol Glasses 2026 – sol-glasses.css
   ================================================================ */

/* ─── Base ─── */
*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  background: #0a0a0a;
  color: #fff;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, p { margin: 0; padding: 0; }
a { text-decoration: none; color: inherit; }

/* ─── Container ─── */
.sol-container {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 40px;
}

/* ─── Section shared ─── */
.sol-section {
  scroll-margin-top: 100px;   /* MainNavBar (50px) + SubNavBar (50px) */
}

.sol-section-header {
  text-align: center;
  margin-bottom: 64px;
}

.sol-section-title {
  font-size: 58px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 1.74px;
  margin-bottom: 50px;
}

.sol-section-subtitle {
  font-size: 18px;
  font-weight: 400;
  line-height: 32px;
  letter-spacing: .36px;
  color: rgba(255,255,255,0.85);
  max-width: 1120px;
  margin: 0 auto !important;
  text-align: center !important;
}

/* ════════════════════════════
   Sub-NavBar
   Always in document flow, placed between Cover and Features.
   Becomes sticky at top:0. MainNavBar is scroll-linked pushed
   up via transform as SubNavBar enters the top NAVBAR_H zone.
════════════════════════════ */

.sol-subnav {
  position: sticky;
  top: 50px;               /* sits directly beneath the 50px MainNavBar */
  z-index: 999;            /* below MainNavBar (1000) so its dropdowns stay on top */
  background: #1e1e1e;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 4px 4px rgba(0,0,0,0.30);
}

.sol-subnav-inner {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 20px;
  height: 50px;
  display: flex;
  align-items: center;
}

.sol-subnav-brand {
  font-size: 30px;
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
  flex-shrink: 0;
}

.sol-subnav-links {
  display: flex;
  list-style: none;
  margin: 0 0 0 40px;
  padding: 0;
  gap: 30px;
  flex: 1;
  min-width: 0;        /* allow the links area to shrink below its content width */
  overflow: hidden;    /* clip instead of forcing page-wide horizontal overflow */
}

.sol-subnav-links a {
  display: inline-block;
  padding: 3px 18px;
  font-size: 18px;
  font-weight: 400;
  color: rgba(255,255,255,0.52);
  border-radius: 20px;
  white-space: nowrap;
  transition: color 0.15s ease, background 0.15s ease;
}

.sol-subnav-links a:hover,
.sol-subnav-links a.is-active {
  color: #fff;
  background: rgba(255,255,255,0.09);
}

/* Filled cyan pill — matches design mockup */
.sol-subnav-cta {
  flex-shrink: 0;
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  line-height: 1;
  padding: 6px 12px 7px;
  background: #4dccff;
  border-radius: 24px;
  font-size: 18px;
  font-weight: 500;
  color: #000;
  white-space: nowrap;
  transition: background 0.15s ease, transform 0.15s ease;
}

.sol-subnav-cta:hover {
  background: #7de0ff;
  color: #000;
  transform: translateY(-1px);
}

/* ── SubNavBar links responsive ──────────────────────────────────
   B) Medium widths: compress links (margin / gap / padding / font)
      so they keep fitting as the bar narrows.
   A) Below ~900px even the compressed links can't fit → hide them.
──────────────────────────────────────────────────────────────── */
@media (max-width: 1100px) {
  .sol-subnav-links   { margin-left: 24px; gap: 16px; }
  .sol-subnav-links a { padding: 3px 10px; font-size: 15px; }
  .sol-subnav-brand   { font-size: 24px; }
}
@media (max-width: 900px) {
  .sol-subnav-links { display: none; }
}

/* ════════════════════════════
   1. Cover
════════════════════════════ */
/* Cover — height is driven by <img class="sol-cover-bg">.
   The image displays at 100% width / auto height (proportional, no crop).
   All other children are absolute so they overlay the image. */
.sol-cover {
  position: relative;
  overflow: hidden;
}

/* Background image — block display removes inline gap, height follows aspect ratio */
.sol-cover-bg {
  display: block;
  width: 100%;
  height: auto;        /* natural proportions — no scaling, no repeat */
  pointer-events: none;
  user-select: none;
}

/* Left-to-right reading overlay so text stays legible against the photo */
.sol-cover::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
}

/* Text overlay — centred inside the section, left-aligned content */
.sol-cover-inner {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 1300px;
  padding: 0 clamp(24px, 3vw, 40px);   /* fluid side padding */
  display: flex;
  align-items: center;
  z-index: 2;
}

.sol-cover-text {
  max-width: 655px;
}

.sol-cover-title {
  font-size: 60px;
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: 1.8px;
  color: #fff;
  margin-bottom: 6px;
}

.sol-cover-eyebrow {
  font-size: 30px;
  font-weight: 600;
  color: rgba(255,255,255,0.85);
  line-height: 1.25;
  margin-bottom: clamp(16px, 2.2vw, 28px);
}

.sol-cover-desc {
  font-size: clamp(14px, 1vw, 18px);
  line-height: 1.70;
  color: rgba(255,255,255,0.85);
  margin-bottom: clamp(24px, 2.8vw, 36px);
}

.sol-cover-cta {
  display: inline-flex;
  align-items: center;
  /* 1920: padding 0 20px, height 34px  → 20÷1920=1.042vw  34÷1920=1.771vw */
  padding: 0 clamp(14px, 1.042vw, 20px);
  height: clamp(26px, 1.771vw, 34px);
  background: #4dccff;
  border-radius: 24px;
  font-size: 18px;
  font-weight: 500;
  color: #000;
  white-space: nowrap;
  transition: background-color 0.2s, transform 0.2s;
}

.sol-cover-cta:hover {
  background-color: #6fd7ff;
  color: #000;
}


/* ════════════════════════════
   2. Exceptional Performance
════════════════════════════ */
.sol-features {
  padding: 120px 0 0;
  background: #0a0a0a;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
}

/* ─── Base card ───────────────────────────────────────────────────
   Image fills the entire card; title + desc are overlaid at bottom.
─────────────────────────────────────────────────────────────────── */
.feature-card {
  border-radius: 20px;
  overflow: hidden;
  background: #141414;
  position: relative;          /* anchor for absolute children */
  display: block;              /* not flex – children are absolute */
  aspect-ratio: 10 / 11;      /* design spec: 400 × 440 */
  transition: transform 0.22s ease, box-shadow 0.22s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 64px rgba(0,0,0,0.65);
}

/* ─── Visual: fills full card ─── */
.feature-card-visual {
  position: absolute;
  inset: 0;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #141414;
}

.feature-card-visual > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.36s ease, opacity 0.35s ease;
}

.feature-card:hover .feature-card-visual > img {
  transform: scale(1.045);
}

/* ─── Hover-to-video overlay ───────────────────────────────────────
   <video> sits absolutely on top of <img>, hidden by default.
   poster= points to the same webp so the first frame of the fade-in
   shows the familiar static image (browser cache) — zero black flash.
   JS adds/removes .is-playing on the card to toggle visibility.
─────────────────────────────────────────────────────────────────── */
.feature-card-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  opacity: 0;
  transition: opacity 0.35s ease;
}

/* Video fades in, image fades out — simultaneously, same duration */
.feature-card.is-playing .feature-card-video {
  opacity: 1;
}

.feature-card.is-playing .feature-card-visual > img {
  opacity: 0;
}

/* ─── Stat cards (32g / 120Hz) ─── */
.feature-card--stat {
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.feature-card--stat .feature-card-visual {
  background: linear-gradient(145deg, #0f0f0f 0%, #1e1e1e 100%);
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.feature-stat {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  line-height: 1;
}

.feature-stat-value {
  font-size: 88px;
  font-weight: 800;
  background: linear-gradient(150deg, #e8c87a 0%, #c9993a 60%, #a07020 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -4px;
  font-variant-numeric: lining-nums;
}

.feature-stat-value sup {
  font-size: 40px;
  font-weight: 700;
  letter-spacing: 0;
  vertical-align: 0.52em;
}

.feature-stat-unit {
  font-size: 40px;
  font-weight: 700;
  color: rgba(255,255,255,0.45);
  padding-bottom: 10px;
}

/* ─── Lens kit card ─── */
.feature-card--lens .feature-card-visual {
  background: #1a1a1a;
}


/* ─── Text overlay at card bottom ─── */
.feature-card-body {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 56px 24px 28px;   /* tall top padding = gradient fade zone */
  text-align: center;
}

.feature-card-title {
  font-size: 26px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 7px;
}

.feature-card-desc {
  font-size: 16px;
  line-height: 1.58;
  color: rgba(255,255,255,0.85);
}

/* ════════════════════════════
   3. Software Ecosystem
════════════════════════════ */
.sol-software {
  padding: 120px 0 0;
}

.sol-software-entry {
  display: flex;
  gap: 80px;
  align-items: center;
  margin-bottom: 100px;
}

.sol-software-entry:last-child {
  margin-bottom: 0;
}

/* Caelus: visual left, text right */
.sol-software-entry--reverse {
  flex-direction: row-reverse;
}

.sol-software-text {
  flex: 1;
  min-width: 0;
}

.sol-software-name {
  font-size: 36px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.3px;
  margin-bottom: 16px;
}

.sol-software-desc {
  font-size: 18px;
  line-height: 1.74;
  color: rgba(255,255,255,0.85);
  margin-bottom: 24px;
}

.sol-software-link {
  display: inline-flex;
  align-items: center;
  font-size: 18px;
  font-weight: 500;
  color: #4dccff;
  transition: letter-spacing 0.2s ease;
}

.sol-software-link:hover {
  color: #4dccff;
  letter-spacing: 0.5px;
}

.sol-software-visual {
  flex: 1;
  min-width: 0;
  border-radius: 16px;
  overflow: hidden;
  min-height: 340px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sol-software-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.sol-software-placeholder {
  width: 100%;
  min-height: 340px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.15);
  font-size: 13px;
  border: 1px dashed rgba(255,255,255,0.10);
  border-radius: 16px;
}

/* ════════════════════════════
   4. Diverse Research Applications
════════════════════════════ */
.sol-applications {
  padding: 120px 0 0;
  background: #0a0a0a;
}

.applications-img {
  display: block;
  width: 100%;
  height: auto;
}

/* ════════════════════════════
   5. Technical Specifications
   Bootstrap 5 accordion — override via CSS variables (correct method)
   Card style: white 15% bg · 16px radius · 24px gap · + icon
════════════════════════════ */
.sol-specs {
  padding: 120px 0 0;
}

/* ── Override Bootstrap CSS variables at the wrapper level ── */
.sol-specs-accordion {
  /* Item background is transparent — frosted glass lives on the button only */
  --bs-accordion-bg:              transparent;
  --bs-accordion-border-width:    0px;
  --bs-accordion-border-color:    transparent;
  --bs-accordion-border-radius:   16px;
  /* Button (header row) carries the frosted-glass card look */
  --bs-accordion-btn-bg:          rgba(255, 255, 255, 0.15);
  --bs-accordion-btn-color:       #fff;
  --bs-accordion-active-color:    #fff;
  --bs-accordion-active-bg:       rgba(255, 255, 255, 0.15);  /* keep bg when open */
  --bs-accordion-btn-icon:        none;   /* suppress Bootstrap's SVG chevron */
  --bs-accordion-btn-active-icon: none;
  --bs-accordion-btn-icon-width:  0px;
  border: none;
  overflow: visible;
  width: 80%;
  margin: 0 auto;
}

/* Each item is a standalone rounded card.
   Direct background/border overrides ensure the style applies even when
   Bootstrap's base CSS isn't present or is overridden by the host CMS. */
.sol-specs-accordion .accordion-item {
  border-radius: 16px !important;
  overflow: hidden;
  margin-bottom: 24px;
  background-color: transparent !important;
  border: none !important;
}

.sol-specs-accordion .accordion-item:last-child { margin-bottom: 0; }

.sol-specs-accordion .accordion-button {
  /* Layout — must be flex so margin-left:auto on ::after right-aligns the icon */
  display: flex !important;
  align-items: center !important;
  width: 100% !important;
  /* Visual */
  font-size: 20px;
  font-weight: 600;
  padding: 22px 28px;
  background-color: rgba(255, 255, 255, 0.15) !important;
  color: rgba(255,255,255,0.85) !important;
  box-shadow: none !important;
  border: none !important;
  outline: none !important;
  cursor: pointer;
}

.sol-specs-accordion .accordion-button:not(.collapsed) {
  background-color: rgba(255, 255, 255, 0.15) !important;
  color: rgba(255,255,255,0.85) !important;
  border-bottom: 1px solid rgba(255,255,255,0.12) !important;
}

/* + / − icon */
.sol-specs-accordion .accordion-button::after {
  content: '+' !important;
  background-image: none !important;
  width: auto !important;
  height: auto !important;
  font-size: 24px;
  font-weight: 300;
  line-height: 1;
  color: rgba(255,255,255,0.70);
  transform: none !important;
  transition: none !important;
  margin-left: auto;
  flex-shrink: 0;
}

.sol-specs-accordion .accordion-button:not(.collapsed)::after {
  content: '−' !important;
}

.sol-specs-accordion .accordion-body {
  padding: 4px 28px 24px;
  background-color: transparent !important;
}

/* ─── Spec table ─── */
.spec-table {
  width: 100%;
  border-collapse: collapse;
}

.spec-table tr {
  border-bottom: 1px solid rgba(255,255,255,0.12);  /* brighter on transparent body */
}

.spec-table tr:last-child { border-bottom: none; }

.spec-table td {
  padding: 15px 28px;
  font-size: 18px;
  line-height: 1.55;
  vertical-align: top;
}

.spec-table td:first-child {
  font-weight: 600;
  color: rgba(255,255,255,0.85);
  width: 38%;
}

.spec-table td:last-child {
  color: rgba(255,255,255,0.85);
}

/* ════════════════════════════
   6. Blog  (Bootstrap Carousel)
════════════════════════════ */
.sol-blog {
  padding: 120px 0 120px;   /* last section → 120px gap to footer */
  background: #0a0a0a;
}

/* Outer wrapper adds horizontal room for arrow buttons */
.sol-blog-outer {
  position: relative;
  padding: 0 44px;
}

/* Card design mirrors Home "Featured News" (.news-card) */
.blog-card {
  display: flex;
  flex-direction: column;
  height: 100%;                                         /* fill the carousel column for equal heights */
  container-type: inline-size;                          /* title font scales to the card's own width */
  background: #121212;                                  /* Home --surface */
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: inset 0 0 60px rgba(77, 204, 255, 0.15);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  cursor: pointer;
}

.blog-card:hover {
  transform: translateY(-5px);
  box-shadow: inset 0 0 60px rgba(77, 204, 255, 0.25),
              0 16px 48px rgba(0, 0, 0, 0.45);
}

/* Image: 9px frame margin + 12px radius (Home Featured News look) */
.blog-card-img {
  height: 270px;
  margin: 9px;
  overflow: hidden;
  border-radius: 12px;
  flex-shrink: 0;
}

.blog-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: inherit;
  transition: transform 0.4s ease;
}

.blog-card:hover .blog-card-img img {
  transform: scale(1.06);
}

.blog-card-body {
  flex: 1;
  padding: 14px 22px 24px;
}

.blog-card-title {
  /* scales to the card's own width: 20px max (Home), 14px floor */
  font-size: clamp(14px, 5cqi, 20px);
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.4px;
  color: #fff;
}

.blog-card-link {
  display: inline-flex;
  align-items: center;
  font-size: 14px;
  font-weight: 600;
  color: #4dccff;
  margin-top: auto;
  transition: letter-spacing 0.2s ease, color 0.15s ease;
  position: absolute;
  bottom: 12px;
}

.blog-card:hover .blog-card-link {
  color: #7de0ff;
  letter-spacing: 0.4px;
}

/* ─── Carousel arrow controls ─── */
.sol-blog-carousel .carousel-control-prev,
.sol-blog-carousel .carousel-control-next {
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 50%;
  top: 50%;
  transform: translateY(-50%);
  opacity: 1;
  transition: background 0.15s ease;
}

.sol-blog-carousel .carousel-control-prev { left: -44px; }
.sol-blog-carousel .carousel-control-next { right: -44px; }

.sol-blog-carousel .carousel-control-prev:hover,
.sol-blog-carousel .carousel-control-next:hover {
  background: rgba(255,255,255,0.16);
  opacity: 1;
}

.sol-blog-carousel .carousel-control-prev-icon,
.sol-blog-carousel .carousel-control-next-icon {
  width: 16px;
  height: 16px;
}

/* ════════════════════════════
   7. FAQ  (Bootstrap accordion override)
   Bootstrap 5 accordion — override via CSS variables (correct method)
   Card style: white 15% bg · 16px radius · 24px gap · + icon
════════════════════════════ */
.sol-faq {
  padding: 120px 0 0;
}

/* ── Override Bootstrap CSS variables at the wrapper level ── */
.sol-faq-accordion {
  /* Item background is transparent — frosted glass lives on the button only */
  --bs-accordion-bg:              transparent;
  --bs-accordion-border-width:    0px;
  --bs-accordion-border-color:    transparent;
  --bs-accordion-border-radius:   16px;
  /* Button (header row) carries the frosted-glass card look */
  --bs-accordion-btn-bg:          rgba(255, 255, 255, 0.15);
  --bs-accordion-btn-color:       #fff;
  --bs-accordion-active-color:    #fff;
  --bs-accordion-active-bg:       rgba(255, 255, 255, 0.15);  /* keep bg when open */
  --bs-accordion-btn-icon:        none;   /* suppress Bootstrap's SVG chevron */
  --bs-accordion-btn-active-icon: none;
  --bs-accordion-btn-icon-width:  0px;
  overflow: visible;
  width: 80%;
  margin: 0 auto;
}

/* Each item is a standalone rounded card — same direct-override pattern as Specs */
.sol-faq-accordion .accordion-item {
  border-radius: 16px !important;
  overflow: hidden;
  margin-bottom: 24px;
  background-color: transparent !important;
  border: none !important;
}

.sol-faq-accordion .accordion-item:last-child { margin-bottom: 0; }

.sol-faq-accordion .accordion-button {
  display: flex !important;
  align-items: center !important;
  width: 100% !important;
  font-size: 20px;
  font-weight: 600;
  line-height: 1.45;
  padding: 24px 28px;
  background-color: rgba(255, 255, 255, 0.15) !important;
  color: rgba(255,255,255,0.85) !important;
  box-shadow: none !important;
  border: none !important;
  outline: none !important;
  cursor: pointer;
}

.sol-faq-accordion .accordion-button:not(.collapsed) {
  background-color: rgba(255, 255, 255, 0.15) !important;
  color: rgba(255,255,255,0.85) !important;
  border-bottom: 1px solid rgba(255,255,255,0.12) !important;
}

/* + / − icon */
.sol-faq-accordion .accordion-button::after {
  content: '+' !important;
  background-image: none !important;
  width: auto !important;
  height: auto !important;
  font-size: 24px;
  font-weight: 300;
  line-height: 1;
  color: rgba(255,255,255,0.70);
  transform: none !important;
  transition: none !important;
  margin-left: auto;
  flex-shrink: 0;
}

.sol-faq-accordion .accordion-button:not(.collapsed)::after {
  content: '−' !important;
}

.sol-faq-accordion .accordion-body {
  padding: 4px 28px 24px;
  background-color: transparent !important;
  color: rgba(255,255,255,0.85);
  font-size: 18px;
  line-height: 1.80;
}

.sol-faq-accordion .accordion-body p { margin-bottom: 14px; }
.sol-faq-accordion .accordion-body p:last-child { margin-bottom: 0; }

/* ════════════════════════════
   Responsive
════════════════════════════ */
@media (max-width: 1100px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .sol-software-entry {
    gap: 48px;
  }
}

@media (max-width: 900px) {
  .sol-software-entry,
  .sol-software-entry--reverse {
    flex-direction: column;
    gap: 32px;
    margin-bottom: 64px;
  }
  .sol-software-visual {
    width: 100%;
  }
  .applications-grid {
    gap: 36px 12px;
  }
}

@media (max-width: 768px) {
  /* Cover ─────────────────────────────────────────────────────────
     At narrow viewports the landscape image collapses too short and
     vertically-centred text rides up behind the sticky navbar.
     Fix: give the section a fixed min-height, switch the image to
     position:absolute + object-fit:cover, and anchor text from the
     top with enough padding to clear the 50px navbar.
  ──────────────────────────────────────────────────────────────── */
  .sol-cover {
    min-height: 380px;
  }
  .sol-cover-bg {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    /* Shift focus right so the glasses (right-side subject) stay visible.
       Tune the horizontal % if the image composition changes. */
    object-position: 65% center;
  }
  .sol-cover-inner {
    align-items: flex-start;       /* anchor to top, not centre */
    padding-top: 64px;             /* navbar (50px) + breathing room */
    padding-bottom: 40px;
  }
  .sol-cover-text    { max-width: 70%; }
  .sol-cover-visual  { display: none; }

  /* SubNavBar */
  .sol-subnav-links  { display: none; }

  /* Layout */
  .sol-container { padding: 0 20px; }
  .sol-section-title { font-size: 28px; }
  .sol-section-subtitle { font-size: 15px; }

  /* Feature — 2 columns keeps row-count at 3 (vs. 6 at 1-col) */
  .feature-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .feature-card-body { padding: 42px 16px 20px; }   /* tighter than desktop 56/24/28 */

  /* Applications */
  .applications-grid { grid-template-columns: repeat(2, 1fr); gap: 32px 12px; }

  /* Specs */
  .spec-table td { padding: 14px 20px; }
  .sol-specs-accordion .accordion-button { font-size: 16px; padding: 18px 20px; }

  /* Blog */
  .sol-blog-outer { padding: 0 32px; }
  .sol-blog-carousel .carousel-control-prev { left: -32px; }
  .sol-blog-carousel .carousel-control-next { right: -32px; }

  /* FAQ */
  .sol-faq-accordion .accordion-button { font-size: 15px; }

  /* Section spacing */
  .sol-features, .sol-software, .sol-applications,
  .sol-specs, .sol-blog, .sol-faq { padding: 80px 0; }
}

@media (max-width: 1200px) {
  .sol-cover-title { font-size: 48px; }
}

@media (max-width: 720px) {
  .sol-cover-title { font-size: 34px; }
}

@media (max-width: 480px) {
  .sol-cover-eyebrow { font-size: 22px; }
}

@media (max-width: 576px) {
  .applications-grid { grid-template-columns: repeat(2, 1fr); }
  .spec-table { display: block; overflow-x: auto; }
}

@media (max-width: 480px) {
  .sol-cover-title { font-size: 28px; }
  .sol-cover-cta   { font-size: 16px; }
}

/* ≤ 480 px — cards become ~160 px wide; description is unreadable, hide it */
@media (max-width: 480px) {
  .feature-grid { gap: 12px; }
  .feature-card-body { padding: 24px 10px 14px; }
  .feature-card-title { font-size: 14px; margin-bottom: 4px; }
  .feature-card-desc  { display: none; }          /* too small to read */
  .sol-features { padding: 60px 0; }
}

/* ≤ 360 px — 2-col cards become ~155 px; switch to 1 col + flatter 4:3 ratio */
@media (max-width: 360px) {
  .feature-grid { grid-template-columns: 1fr; gap: 14px; }
  .feature-card { aspect-ratio: 4 / 3; }          /* landscape card, stays short */
  .feature-card-body { padding: 32px 16px 18px; }
  .feature-card-title { font-size: 15px; margin-bottom: 6px; }
  .feature-card-desc  { display: none; }
  .sol-features { padding: 56px 0; }
}