/* Shared feature page styles */
.feat-hero { padding: 72px 0 48px; background: radial-gradient(800px 400px at 50% -20%, rgba(110,81,224,.14), transparent 60%); }
.feat-hero-inner { max-width: 820px; margin: 0 auto; text-align: center; padding: 0 24px; }
.feat-badges { display: inline-flex; gap: 8px; margin-bottom: 24px; flex-wrap: wrap; justify-content: center; }
.feat-badge { font: 600 11px/1 var(--font); letter-spacing: .08em; text-transform: uppercase; padding: 8px 14px; border-radius: 999px; background: var(--accent-tint); color: var(--accent); }
.feat-badge.beta { background: var(--coral-tint); color: var(--coral); }
.feat-hero h1 { font-size: 64px; margin-bottom: 24px; }
.feat-hero .lead { max-width: 620px; margin: 0 auto 32px; }
.feat-hero .ctas { display: inline-flex; gap: 12px; flex-wrap: wrap; justify-content: center; }
@media (max-width: 900px) {
  .feat-hero { padding: 56px 0 36px; }
  .feat-hero h1 { font-size: 44px; margin-bottom: 18px; }
  .feat-hero-inner { padding: 0 20px; }
}

.challenge { padding: 96px 0; background: #fff; }
.challenge-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; max-width: 1100px; margin: 0 auto; padding: 0 24px; }
.challenge h2 { font-size: 40px; margin-top: 16px; margin-bottom: 20px; }
.challenge .body { color: var(--ink-3); font-size: 17px; line-height: 1.6; }
.challenge-visual { aspect-ratio: 4/3; border-radius: var(--r-lg); background: var(--bg); border: 1px solid var(--line); position: relative; overflow: hidden; }
@media (max-width: 900px) { .challenge { padding: 64px 0; } .challenge-inner { grid-template-columns: 1fr; gap: 32px; padding: 0 20px; } .challenge h2 { font-size: 28px; } }
@media (max-width: 640px) { .challenge { padding: 48px 0; } .challenge h2 { font-size: 24px; } .challenge .body { font-size: 15px; } .challenge-visual { aspect-ratio: 5/4; } }

/* Stepper */
.stepper-section { padding: 96px 0; background: var(--bg); }
.stepper-phase {
  display: inline-flex; align-items: center; gap: 8px;
  font: 600 11px/1 var(--font); letter-spacing: .08em; text-transform: uppercase;
  color: var(--accent); background: var(--accent-tint);
  padding: 8px 14px; border-radius: 999px; margin-bottom: 20px;
}
.stepper-header { text-align: center; margin-bottom: 64px; }
.stepper-layout {
  display: grid; grid-template-columns: 340px 1fr; gap: 48px;
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
}
.stepper-sidebar { display: grid; gap: 8px; position: sticky; top: 96px; align-self: start; }
.step {
  padding: 20px; border-radius: 14px; cursor: pointer;
  display: grid; grid-template-columns: 28px 1fr; gap: 14px; align-items: flex-start;
  border: 1px solid transparent;
  background: #fff;
  transition: border .15s, background .15s;
}
.step:hover { border-color: var(--line); }
.step.active { border-color: var(--accent-tint-2); background: #fff; box-shadow: var(--shadow-xs); }
.step-num {
  width: 28px; height: 28px; border-radius: 999px; background: var(--bg);
  color: var(--muted); display: grid; place-items: center;
  font: 600 12px/1 var(--font);
}
.step.active .step-num { background: var(--accent); color: #fff; }
.step-label { font: 500 14px/1.4 var(--font); color: var(--ink-2); }
.step.active .step-label { color: var(--ink); }

.stepper-viewer {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  overflow: hidden; box-shadow: var(--shadow-md);
  display: flex; flex-direction: column;
  min-height: 520px;
}
.stepper-viewer-head {
  padding: 16px 20px; border-bottom: 1px solid var(--line);
  display: flex; align-items: center; gap: 12px; background: var(--bg-3);
}
.stepper-viewer-head .dots { display: flex; gap: 6px; }
.stepper-viewer-head .dots span { width: 10px; height: 10px; border-radius: 999px; background: #D1D5DE; }
.stepper-viewer-head .dots span:nth-child(1) { background: #FF6159; }
.stepper-viewer-head .dots span:nth-child(2) { background: #FFBD2E; }
.stepper-viewer-head .dots span:nth-child(3) { background: #28C940; }
.stepper-viewer-head .title { font-size: 13px; color: var(--ink-2); font-weight: 500; }
.stepper-viewer-body {
  flex: 1; padding: 24px; display: grid; place-items: center;
  background: linear-gradient(180deg, var(--bg-3), #fff);
}
.stepper-placeholder {
  width: 100%; max-width: 480px;
  aspect-ratio: 1/1.1;
  background: #fff; border: 1px solid var(--line); border-radius: 16px;
  display: flex; flex-direction: column; padding: 20px;
  box-shadow: var(--shadow-sm);
  font-size: 13px; gap: 12px;
}
.stepper-shot {
  width: 100%; max-width: 720px;
  background: #fff; border: 1px solid var(--line); border-radius: 12px;
  box-shadow: var(--shadow-sm); overflow: hidden;
}
.stepper-shot img { display: block; width: 100%; height: auto; }
.stepper-viewer-caption {
  padding: 20px 24px; border-top: 1px solid var(--line);
  background: #fff;
}
.stepper-viewer-caption h3 { font-size: 18px; margin-bottom: 6px; }
.stepper-viewer-caption p { font-size: 14px; color: var(--ink-3); line-height: 1.5; }
@media (max-width: 900px) {
  .stepper-section { padding: 64px 0; }
  .stepper-header { margin-bottom: 40px; }
  .stepper-layout { grid-template-columns: 1fr; gap: 28px; padding: 0 20px; }
  .stepper-sidebar {
    position: static;
    display: grid; grid-auto-flow: column; grid-auto-columns: minmax(180px, 1fr);
    gap: 8px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 8px;
    margin: 0 -20px;
    padding-left: 20px; padding-right: 20px;
  }
  .step { scroll-snap-align: start; padding: 14px 16px; }
  .stepper-viewer { min-height: 420px; }
}
@media (max-width: 640px) {
  .stepper-section { padding: 48px 0; }
  .stepper-viewer-body { padding: 16px; }
  .stepper-viewer-caption { padding: 16px 18px; }
  .stepper-viewer-caption h3 { font-size: 17px; }
}

/* Benefits */
.benefits-section { padding: 96px 0; background: #fff; }
.benefits-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; max-width: 1100px; margin: 0 auto; padding: 0 24px; align-items: start; }
.benefits-inner h2 { font-size: 40px; margin-top: 16px; }
.benefits-inner .check-list li { font-size: 16px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.benefits-inner .check-list li:last-child { border-bottom: 0; }
@media (max-width: 900px) { .benefits-section { padding: 64px 0; } .benefits-inner { grid-template-columns: 1fr; gap: 28px; padding: 0 20px; } .benefits-inner h2 { font-size: 28px; } }
@media (max-width: 640px) { .benefits-section { padding: 48px 0; } .benefits-inner h2 { font-size: 24px; } .benefits-inner .check-list li { font-size: 15px; padding: 10px 0; } }

/* Related */
.related-section { padding: 96px 0; background: var(--bg); }
.related-header { text-align: center; margin-bottom: 48px; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; max-width: 1100px; margin: 0 auto; padding: 0 24px; }
.related-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 28px; display: block;
}
.related-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.related-card h3 { font-size: 18px; margin: 16px 0 8px; }
.related-card .body { color: var(--ink-3); font-size: 13px; margin-bottom: 16px; }
.related-card .ic { width: 40px; height: 40px; border-radius: 10px; background: var(--accent-tint); color: var(--accent); display: grid; place-items: center; }
.related-card .more { color: var(--accent); font-size: 13px; font-weight: 500; }
@media (max-width: 900px) { .related-section { padding: 64px 0; } .related-grid { grid-template-columns: 1fr 1fr; gap: 14px; padding: 0 20px; } .related-header { margin-bottom: 32px; } }
@media (max-width: 640px) { .related-section { padding: 48px 0; } .related-grid { grid-template-columns: 1fr; } .related-card { padding: 22px; } }

/* CTA banner */
.feat-cta-section { padding: 0 0 120px; }
.feat-cta-banner {
  background:
    radial-gradient(500px 300px at 20% 100%, rgba(110,81,224,.35), transparent 70%),
    radial-gradient(600px 400px at 90% 0%, rgba(200,55,171,.2), transparent 70%),
    #0A0F1A;
  color: #fff; border-radius: var(--r-xl);
  padding: 72px 64px; text-align: center;
  max-width: 1152px; margin: 0 auto;
}
.feat-cta-banner .eyebrow { background: rgba(255,255,255,.08); color: #fff; margin-bottom: 16px; }
.feat-cta-banner h2 { font-size: 44px; margin-bottom: 16px; color: #fff; }
.feat-cta-banner .lead { color: rgba(255,255,255,.7); max-width: 520px; margin: 0 auto 28px; }
.feat-cta-banner .btns { display: inline-flex; gap: 12px; flex-wrap: wrap; justify-content: center; }
@media (max-width: 900px) {
  .feat-cta-section { padding: 0 0 80px; }
  .feat-cta-banner { padding: 56px 32px; margin: 0 20px; border-radius: 22px; }
  .feat-cta-banner h2 { font-size: 32px; }
}
@media (max-width: 640px) {
  .feat-cta-section { padding: 0 0 56px; }
  .feat-cta-banner { padding: 44px 22px; margin: 0 16px; border-radius: 18px; }
  .feat-cta-banner h2 { font-size: 26px; }
  .feat-cta-banner .btns { display: grid; width: 100%; gap: 10px; }
  .feat-hero h1 { font-size: 32px; }
}