:root {
  --bg: #f4f7fb;
  --surface: #ffffff;
  --surface-soft: #eef4fa;
  --surface-strong: #e7eef7;
  --text: #122033;
  --text-muted: #556579;
  --heading: #0d1726;
  --line: #d7e0ea;
  --line-strong: #c4d1df;
  --accent: #ffb21c;
  --accent-dark: #d78a00;
  --navy: #142133;
  --navy-soft: #213249;
  --success-bg: #edf8f0;
  --success-text: #17502b;
  --warning-bg: #fff5e6;
  --warning-text: #7a4c00;
  --shadow-sm: 0 8px 18px rgba(13, 21, 34, 0.08);
  --shadow-md: 0 18px 44px rgba(13, 21, 34, 0.10);
  --radius-sm: 14px;
  --radius-md: 20px;
  --radius-lg: 28px;
  --container: 1140px;
  --transition: 180ms ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(255, 178, 28, 0.10), transparent 26%),
    linear-gradient(180deg, #f7fafe 0%, var(--bg) 100%);
  line-height: 1.55;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
summary,
a {
  -webkit-tap-highlight-color: transparent;
}

.container {
  width: min(var(--container), calc(100% - 2rem));
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 1000;
  background: var(--navy);
  color: #fff;
  padding: 0.85rem 1rem;
  border-radius: 0.75rem;
  transition: top var(--transition);
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(14px);
  background: rgba(247, 250, 254, 0.88);
  border-bottom: 1px solid rgba(215, 224, 234, 0.8);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  overflow: hidden;
  flex: 0 0 auto;
  box-shadow: var(--shadow-sm);
}

.brand-mark svg {
  width: 100%;
  height: 100%;
}

.brand-mark rect {
  fill: var(--navy);
}

.brand-mark path {
  fill: #fff;
}

.brand-mark circle {
  fill: var(--accent);
}

.brand-text-wrap {
  display: grid;
  gap: 0.1rem;
  min-width: 0;
}

.brand-text {
  font-weight: 800;
  font-size: 1rem;
  color: var(--heading);
  letter-spacing: 0.01em;
}

.brand-subtext {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 600;
}

.top-nav {
  display: inline-flex;
  align-items: center;
  gap: 1.2rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.top-nav a {
  white-space: nowrap;
  transition: color var(--transition);
}

.top-nav a:hover,
.top-nav a:focus-visible {
  color: var(--heading);
}

.hero {
  padding: 2rem 0 1.5rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 2rem;
  align-items: center;
}

.eyebrow {
  margin: 0 0 0.8rem;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--navy-soft);
}

.hero h1,
.section-heading h2,
.final-copy h2 {
  margin: 0;
  color: var(--heading);
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.hero h1 {
  font-size: clamp(2rem, 4vw, 3.6rem);
  max-width: 12ch;
}

.hero-subheadline {
  margin: 1rem 0 0;
  font-size: 1.08rem;
  color: var(--text-muted);
  max-width: 58ch;
}

.hero-site-note {
  display: inline-flex;
  align-items: center;
  margin: 0.9rem 0 0;
  padding: 0.5rem 0.8rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(20, 33, 51, 0.04);
  color: var(--navy);
  font-size: 0.92rem;
  font-weight: 700;
}

.hero-trustline {
  margin: 0.85rem 0 0;
  max-width: 58ch;
  font-size: 0.95rem;
  color: var(--navy);
  font-weight: 700;
}

.hero-benefits {
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.8rem;
}

.hero-benefits li {
  position: relative;
  padding-left: 1.6rem;
  color: var(--text);
}

.hero-benefits li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.52rem;
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--accent), #ffd67b);
  box-shadow: 0 0 0 6px rgba(255, 178, 28, 0.12);
}

.hero-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.25rem;
}

.hero-specs span,
.visual-badges span {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0.55rem 0.85rem;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--navy);
  background: var(--surface-soft);
  border: 1px solid var(--line);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1rem;
  margin-top: 1.5rem;
}

.hero-note,
.cta-support,
.cta-disclosure,
.sticky-cta-note {
  margin: 0;
  font-size: 0.92rem;
  color: var(--text-muted);
}

.hero-note {
  font-weight: 600;
}

.cta-disclosure {
  margin-top: 0.55rem;
  font-size: 0.86rem;
}

.button,
.sticky-cta {
  text-wrap: balance;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0.9rem 1.35rem;
  border-radius: 999px;
  border: 0;
  font-size: 1rem;
  font-weight: 700;
  text-align: center;
  transition:
    transform var(--transition),
    box-shadow var(--transition),
    background var(--transition);
}

.button:focus-visible,
.sticky-cta:focus-visible,
summary:focus-visible,
.footer-links a:focus-visible,
.top-nav a:focus-visible {
  outline: 3px solid rgba(255, 178, 28, 0.35);
  outline-offset: 3px;
}

.button-primary {
  color: #0f1724;
  background: linear-gradient(180deg, #ffc84d 0%, var(--accent) 100%);
  box-shadow: 0 16px 30px rgba(255, 178, 28, 0.26);
}

.button-primary:hover,
.button-primary:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 20px 34px rgba(255, 178, 28, 0.30);
}

.disclosure {
  margin: 1rem 0 0;
  font-size: 0.92rem;
  color: var(--text-muted);
}

.hero-visual {
  min-width: 0;
}

.mockup-card {
  position: relative;
  background: linear-gradient(180deg, #ffffff 0%, #f5f8fc 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1rem;
  box-shadow: var(--shadow-md);
}

.hero-brand-panel {
  position: absolute;
  left: 1rem;
  top: 1rem;
  z-index: 2;
  display: grid;
  gap: 0.12rem;
  padding: 0.7rem 0.85rem;
  border-radius: 16px;
  background: rgba(13, 23, 38, 0.88);
  color: #fff;
  box-shadow: 0 14px 28px rgba(13, 21, 34, 0.22);
}

.hero-brand-name {
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.hero-brand-model {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.82);
  font-weight: 700;
}

.visual-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1rem;
}

.product-photo,
.proof-photo,
.box-photo {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 18px;
}

.proof-photo,
.box-photo {
  margin-bottom: 0.95rem;
}

.section {
  padding: 1.25rem 0 2.5rem;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 1.35rem;
}

.section-heading.left {
  margin-bottom: 0;
}

.section-heading h2,
.final-copy h2 {
  font-size: clamp(1.6rem, 3vw, 2.5rem);
}

.section-heading p:last-child,
.final-copy p:last-child {
  margin: 0.75rem 0 0;
  color: var(--text-muted);
  font-size: 1rem;
}

.proof-grid,
.box-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.section-hint {
  display: none;
  margin: -0.5rem 0 0.95rem;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--navy-soft);
}

.proof-card,
.box-item,
.fit-panel,
.final-cta-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.proof-card,
.box-item {
  padding: 1rem;
}

.proof-card h3,
.box-item h3,
.fit-panel h3 {
  margin: 0 0 0.45rem;
  font-size: 1.06rem;
  color: var(--heading);
}

.proof-card p,
.box-item p,
.fit-panel li,
.faq-content p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.96rem;
}

.fit-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.fit-panel {
  padding: 1.25rem;
}

.fit-good {
  background: linear-gradient(180deg, #ffffff 0%, var(--success-bg) 100%);
}

.fit-limit {
  background: linear-gradient(180deg, #ffffff 0%, var(--warning-bg) 100%);
}

.check-list,
.x-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.8rem;
}

.check-list li,
.x-list li {
  position: relative;
  padding-left: 1.7rem;
}

.check-list li::before,
.x-list li::before {
  position: absolute;
  left: 0;
  top: 0.15rem;
  font-weight: 700;
}

.check-list li::before {
  content: "✓";
  color: var(--success-text);
}

.x-list li::before {
  content: "—";
  color: var(--warning-text);
}

.box-item {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.faq-list {
  display: grid;
  gap: 0.85rem;
}

.faq-item {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.faq-item summary {
  position: relative;
  display: block;
  cursor: pointer;
  list-style: none;
  min-height: 56px;
  padding: 1rem 3.4rem 1rem 1rem;
  font-weight: 700;
  color: var(--heading);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1.7rem;
  height: 1.7rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: var(--surface-soft);
  color: var(--navy);
  font-size: 1.1rem;
  font-weight: 700;
}

.faq-item[open] summary::after {
  content: "–";
}

.faq-content {
  padding: 0 1rem 1rem;
}

.final-cta {
  padding-bottom: 5.5rem;
}

.final-cta-card {
  display: grid;
  grid-template-columns: 1.1fr auto;
  gap: 1.2rem;
  align-items: center;
  padding: 1.35rem;
  background:
    linear-gradient(180deg, rgba(255, 178, 28, 0.10), rgba(255, 178, 28, 0.03)),
    var(--surface);
}

.final-action {
  text-align: center;
}

.site-footer {
  padding: 1.5rem 0 5.5rem;
  border-top: 1px solid rgba(215, 224, 234, 0.8);
  background: rgba(255, 255, 255, 0.55);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.1fr auto;
  gap: 1rem;
  align-items: start;
}

.footer-title {
  margin: 0 0 0.45rem;
  color: var(--heading);
  font-weight: 700;
}

.footer-copy {
  margin: 0;
  color: var(--text-muted);
  max-width: 60ch;
  font-size: 0.95rem;
}

.footer-links {
  display: grid;
  gap: 0.65rem;
  justify-items: end;
}

.footer-links a {
  color: var(--navy);
  font-weight: 700;
  font-size: 0.95rem;
}

.footer-links a:hover {
  text-decoration: underline;
}

.sticky-cta-wrap {
  position: fixed;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  z-index: 40;
  display: none;
  max-width: 34rem;
  margin: 0 auto;
  text-align: center;
}

.sticky-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 54px;
  padding: 0.9rem 1rem;
  border-radius: 999px;
  color: #0f1724;
  background: linear-gradient(180deg, #ffc84d 0%, var(--accent) 100%);
  box-shadow: 0 20px 40px rgba(255, 178, 28, 0.26);
  font-weight: 800;
  text-align: center;
}

.sticky-cta-note {
  display: inline-block;
  margin: 0.42rem 0 0;
  padding: 0.22rem 0.6rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
  font-size: 0.78rem;
  line-height: 1.2;
  color: var(--navy);
  font-weight: 700;
}

[hidden] {
  display: none !important;
}

@media (max-width: 1024px) {
  .hero-grid,
  .final-cta-card {
    grid-template-columns: 1fr;
  }

  .proof-grid,
  .box-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero h1 {
    max-width: none;
  }
}

@media (max-width: 1024px) {
  .sticky-cta-wrap {
    display: block;
    bottom: 0.75rem;
  }
}

@media (max-width: 768px) {
  .header-inner {
    min-height: 64px;
    flex-wrap: wrap;
    padding: 0.75rem 0;
  }

  .top-nav {
    display: flex;
    flex-wrap: nowrap;
    width: 100%;
    gap: 0.55rem;
    padding-bottom: 0.1rem;
    overflow-x: auto;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

  .top-nav::-webkit-scrollbar {
    display: none;
  }

  .top-nav a {
    flex: 0 0 auto;
    display: inline-flex;
    justify-content: center;
    text-align: center;
    padding: 0.55rem 0.85rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(255,255,255,0.78);
    font-size: 0.92rem;
  }

  .hero {
    padding-top: 1rem;
  }

  .container {
    width: min(var(--container), calc(100% - 1.25rem));
  }

  .hero-subheadline {
    font-size: 1rem;
  }

  .section {
    padding: 1rem 0 2rem;
  }

  .proof-grid,
  .box-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-links {
    justify-items: start;
  }

  .site-footer {
    padding-bottom: 6.9rem;
  }
}

@media (max-width: 560px) {
  .hero h1 {
    font-size: clamp(1.85rem, 7vw, 2.4rem);
  }

  .hero-grid {
    gap: 1rem;
  }

  .hero-copy {
    display: contents;
  }

  .hero-copy .eyebrow,
  .hero-copy h1,
  .hero-copy .hero-subheadline,
  .hero-copy .hero-site-note,
  .hero-copy .hero-trustline {
    order: 0;
  }

  .hero-copy .hero-actions {
    order: 1;
  }

  .hero-visual {
    order: 2;
  }

  .hero-copy .hero-benefits,
  .hero-copy .hero-specs,
  .hero-copy .disclosure {
    order: 3;
  }

  .mockup-card {
    padding: 0.8rem;
  }

  .hero-brand-panel {
    left: 0.8rem;
    top: 0.8rem;
  }

  .hero {
    padding-bottom: 2rem;
  }

  .hero-actions {
    align-items: stretch;
  }

  .hero-actions .button {
    width: 100%;
  }

  .proof-card,
  .box-item,
  .fit-panel,
  .final-cta-card {
    border-radius: 18px;
  }

  .faq-item summary {
    padding-right: 3rem;
  }

}

@media (max-width: 420px) {
  body {
    overflow-x: hidden;
  }

  .container {
    width: calc(100% - 1rem);
  }

  .brand-text {
    font-size: 0.92rem;
  }

  .brand-subtext {
    font-size: 0.72rem;
  }

  .button,
  .sticky-cta,
  .faq-item summary,
  .top-nav a {
    min-height: 44px;
  }

  .hero {
    padding-top: 0.8rem;
    padding-bottom: 2.25rem;
  }

  .hero-subheadline,
  .section-heading p:last-child,
  .proof-card p,
  .box-item p,
  .fit-panel li,
  .faq-content p,
  .footer-copy,
  .section-hint,
  .hero-site-note {
    font-size: 0.93rem;
  }

  .hero-specs span,
  .visual-badges span {
    min-height: 34px;
    font-size: 0.86rem;
  }

  .top-nav {
    gap: 0.45rem;
  }

  .top-nav a {
    padding: 0.5rem 0.7rem;
    font-size: 0.84rem;
  }


  .sticky-cta-wrap {
    left: 0.5rem;
    right: 0.5rem;
    bottom: 0.5rem;
  }

  .site-footer {
    padding-bottom: 6.7rem;
  }

  .button,
  .sticky-cta {
    font-size: 0.94rem;
    padding: 0.82rem 1rem;
  }

  .sticky-cta {
    max-width: none;
  }

}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition: none !important;
  }

  .photo-card.is-loading::before {
    animation: none !important;
  }
}

/* image-based refresh */
.photo-card {
  padding: 1.15rem;
}

.photo-card.is-loading {
  overflow: hidden;
}

.photo-card.is-loading::before {
  content: "";
  position: absolute;
  inset: 1.15rem;
  border-radius: 24px;
  background: linear-gradient(90deg, rgba(231, 238, 247, 0.92) 20%, rgba(255, 255, 255, 0.98) 50%, rgba(231, 238, 247, 0.92) 80%);
  background-size: 220% 100%;
  animation: hero-shimmer 1.25s linear infinite;
  z-index: 1;
}

.photo-card.is-loading .hero-brand-panel,
.photo-card.is-loading .visual-badges {
  opacity: 0.45;
}

.product-photo {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: contain;
  border-radius: 24px;
  background: linear-gradient(180deg, #ffffff 0%, #f5f8fc 100%);
  opacity: 1;
  transition: opacity 220ms ease;
}

.photo-card.is-loading .product-photo {
  opacity: 0;
}

.photo-card:not(.is-loading) .product-photo {
  opacity: 1;
}

.proof-grid-photo,
.box-grid-photo {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.2rem;
}

.proof-card-photo,
.box-item-photo {
  padding: 1rem;
}

.proof-photo,
.box-photo {
  width: 100%;
  height: auto;
  display: block;
  margin-bottom: 0.95rem;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: #f5f8fc;
  box-shadow: var(--shadow-sm);
}

.proof-photo {
  aspect-ratio: auto;
  object-fit: contain;
}

.box-photo {
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

@keyframes hero-shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -20% 0;
  }
}

@media (max-width: 1024px) {
  .photo-card {
    padding: 0.95rem;
  }

  .photo-card.is-loading::before {
    inset: 0.95rem;
  }
}

@media (max-width: 768px) {
  .section-hint {
    display: block;
  }

  .proof-grid-photo,
  .box-grid-photo {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(88%, 1fr);
    grid-template-columns: none;
    overflow-x: auto;
    overscroll-behavior-x: contain;
    scroll-snap-type: x mandatory;
    padding-bottom: 0.35rem;
    -webkit-overflow-scrolling: touch;
  }

  .proof-card-photo,
  .box-item-photo {
    padding: 0.85rem;
    scroll-snap-align: start;
  }
}

@media (max-width: 560px) {
  .product-photo,
  .proof-photo,
  .box-photo {
    aspect-ratio: auto;
  }
}

@media (max-width: 360px) {
  .fit-grid {
    grid-template-columns: 1fr;
  }
}