.invoice-designs-page { color: #152642; background: #f5f2ea; }
.invoice-designs-page main { overflow: hidden; }
.design-hero, .design-comparison, .design-invariants, .design-choice-table, .design-faq, .design-final-cta { max-width: 1180px; margin: 0 auto; padding-left: 28px; padding-right: 28px; }
.design-hero { padding-top: 42px; padding-bottom: 72px; }
.design-breadcrumb { display: flex; gap: 9px; align-items: center; margin-bottom: 62px; font: 400 12px/1.4 "IBM Plex Mono", monospace; text-transform: uppercase; letter-spacing: .08em; }
.design-breadcrumb a { color: #42536c; }
.design-hero-grid { display: grid; grid-template-columns: minmax(0, 1.7fr) minmax(260px, .7fr); gap: clamp(36px, 7vw, 96px); align-items: end; }
.design-eyebrow { margin-bottom: 16px; color: #ad2a25; font: 600 12px/1.4 "IBM Plex Mono", monospace; letter-spacing: .15em; text-transform: uppercase; }
.design-hero h1, .design-section-heading h2, .design-invariants h2, .design-choice-table h2, .design-faq h2, .design-final-cta h2 { margin: 0; font-family: Fraunces, Georgia, serif; font-weight: 600; letter-spacing: -.025em; }
.design-hero h1 { max-width: 800px; font-size: clamp(42px, 6.3vw, 78px); line-height: .99; }
.design-hero-grid > div > p { max-width: 720px; margin: 28px 0 0; color: #41516a; font-size: 19px; line-height: 1.65; }
.design-actions { display: flex; flex-wrap: wrap; gap: 22px; align-items: center; margin-top: 32px; }
.design-actions > a:not(.tb-btn), .design-final-cta > div:last-child > a:not(.tb-btn) { color: #152642; font-weight: 700; }
.design-hero-note { padding: 26px; border: 1px solid #ced3d8; border-radius: 18px; background: rgba(255,255,255,.62); box-shadow: 0 18px 50px rgba(20,38,66,.07); }
.design-hero-note span, .design-card span { display: block; color: #ad2a25; font: 600 11px/1.4 "IBM Plex Mono", monospace; letter-spacing: .12em; text-transform: uppercase; }
.design-hero-note strong { display: block; margin: 10px 0; font: 600 25px/1.2 Fraunces, Georgia, serif; }
.design-hero-note p { margin: 0; color: #536078; line-height: 1.6; }
.design-video-section { padding: 76px max(28px, calc((100vw - 1180px) / 2 + 28px)); color: #f6f3ed; background: #14233b; }
.design-section-heading { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(260px, .7fr); gap: 48px; align-items: end; margin-bottom: 38px; }
.design-section-heading h2, .design-invariants h2, .design-choice-table h2, .design-faq h2, .design-final-cta h2 { font-size: clamp(34px, 4.5vw, 54px); line-height: 1.08; }
.design-section-heading > p { margin: 0; color: #55637a; font-size: 17px; line-height: 1.65; }
.design-section-heading-light > p { color: #b9c2cf; }
.design-video-frame { position: relative; aspect-ratio: 16 / 9; overflow: hidden; border: 1px solid rgba(255,255,255,.14); border-radius: 22px; background: #07101f; box-shadow: 0 30px 70px rgba(0,0,0,.34); }
.design-video-frame iframe { width: 100%; height: 100%; border: 0; }
.design-transcript { margin-top: 24px; border-top: 1px solid rgba(255,255,255,.18); border-bottom: 1px solid rgba(255,255,255,.18); }
.design-transcript summary { padding: 18px 0; cursor: pointer; font-weight: 700; }
.design-transcript > div { max-width: 820px; padding: 0 0 20px; color: #c7ced8; line-height: 1.7; }
.design-comparison { padding-top: 92px; padding-bottom: 92px; }
.design-card-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 22px; }
.design-card { overflow: hidden; border: 1px solid #d8d8d2; border-radius: 18px; background: #fff; box-shadow: 0 14px 38px rgba(20,38,66,.06); scroll-margin-top: 96px; }
.design-card img { display: block; width: 100%; height: auto; aspect-ratio: 720 / 890; object-fit: cover; object-position: top; border-bottom: 1px solid #e6e4df; background: #e8e7e2; }
.design-card > div { padding: 22px; }
.design-card h3 { margin: 8px 0; font: 600 28px/1.15 Fraunces, Georgia, serif; }
.design-card p { min-height: 76px; margin: 0 0 18px; color: #55637a; line-height: 1.55; }
.design-card strong { color: #243754; font-size: 13px; }
.design-invariants { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(42px, 8vw, 100px); padding-top: 78px; padding-bottom: 78px; border-top: 1px solid #d8d7d1; }
.design-invariants > div:first-child > p { color: #55637a; font-size: 17px; line-height: 1.65; }
.design-invariant-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.design-invariant-grid > div { padding: 28px; border-radius: 16px; background: #fff; }
.design-invariant-grid > div:last-child { color: #f7f4ee; background: #203450; }
.design-invariant-grid h3 { margin: 0 0 18px; font: 600 22px/1.2 Fraunces, Georgia, serif; }
.design-invariant-grid ul { margin: 0; padding-left: 20px; line-height: 1.8; }
.design-choice-table { padding-top: 82px; padding-bottom: 82px; }
.design-table-wrap { overflow-x: auto; border: 1px solid #d7d8d4; border-radius: 16px; background: #fff; }
.design-table-wrap table { width: 100%; border-collapse: collapse; min-width: 680px; }
.design-table-wrap th, .design-table-wrap td { padding: 18px 22px; border-bottom: 1px solid #e4e3df; text-align: left; vertical-align: top; }
.design-table-wrap thead th { color: #fff; background: #203450; font-size: 13px; letter-spacing: .04em; }
.design-table-wrap tbody tr:last-child td { border-bottom: 0; }
.design-table-wrap td:nth-child(2) { font-weight: 700; white-space: nowrap; }
.design-faq { display: grid; grid-template-columns: minmax(230px, .6fr) minmax(0, 1.4fr); gap: 70px; padding-top: 88px; padding-bottom: 88px; border-top: 1px solid #d8d7d1; }
.design-faq-list details { border-bottom: 1px solid #d4d4cf; }
.design-faq-list summary { padding: 20px 32px 20px 0; cursor: pointer; font-weight: 700; font-size: 17px; }
.design-faq-list p { margin: -5px 0 22px; color: #55637a; line-height: 1.65; }
.design-final-cta { display: flex; justify-content: space-between; align-items: end; gap: 50px; margin-bottom: 80px; padding-top: 48px; padding-bottom: 48px; border-radius: 22px; color: #fff; background: #ad2a25; }
.design-final-cta .design-eyebrow { color: #ffd6cc; }
.design-final-cta p { margin-bottom: 0; color: #ffe9e3; }
.design-final-cta > div:last-child { display: flex; flex-wrap: wrap; gap: 18px; align-items: center; flex-shrink: 0; }
.design-final-cta .tb-btn.primary { color: #152642; background: #fff; }
.design-final-cta > div:last-child > a:not(.tb-btn) { color: #fff; }
.design-related { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; max-width: 1180px; margin: -52px auto 80px; padding: 0 28px; }
.design-related a { display: flex; flex-direction: column; gap: 6px; padding: 20px 22px; border: 1px solid #d8d7d1; border-radius: 14px; color: #152642; background: rgba(255,255,255,.55); text-decoration: none; }
.design-related a:hover { border-color: #ad2a25; }
.design-related span { color: #55637a; font-size: 14px; }
@media (max-width: 920px) {
  .design-card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .design-hero-grid, .design-section-heading, .design-invariants, .design-faq { grid-template-columns: 1fr; }
  .design-faq { gap: 32px; }
  .design-final-cta { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 560px) {
  .design-hero, .design-comparison, .design-invariants, .design-choice-table, .design-faq { padding-left: 18px; padding-right: 18px; }
  .design-video-section { padding-left: 18px; padding-right: 18px; }
  .design-hero { padding-top: 25px; }
  .design-breadcrumb { margin-bottom: 38px; }
  .design-card-grid, .design-invariant-grid { grid-template-columns: 1fr; }
  .design-card p { min-height: 0; }
  .design-final-cta { margin: 0 18px 56px; padding-left: 24px; padding-right: 24px; }
  .design-related { grid-template-columns: 1fr; margin-top: -30px; padding: 0 18px; }
}