.problem { text-align: center; }
.problem h2 { max-width: 850px; margin-inline: auto; }
.problem p:last-child { max-width: 720px; margin: 36px auto 0; color: var(--muted); font-size: 19px; line-height: 1.8; }

.difference-section { background: var(--paper); }
.difference-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 100px; align-items: center; }
.difference-flow { display: grid; grid-template-columns: 1fr auto 1fr; gap: 24px; align-items: center; }
.difference-flow article { min-height: 270px; padding: 28px 0; border-block: 1px solid var(--line); }
.difference-flow article > span { display: block; margin-bottom: 48px; color: #087b85; font-size: 13px; font-weight: 700; }
.difference-flow h3 { margin: 12px 0; }
.difference-flow article > p:last-child { color: var(--muted); font-size: 15px; line-height: 1.75; }
.flow-arrow { color: var(--cyan); font-size: 30px; }

.loop-section { background: var(--paper); }
.loop-list { display: grid; grid-template-columns: repeat(3, 1fr); margin: 0; padding: 0; border-top: 1px solid var(--line); border-left: 1px solid var(--line); list-style: none; }
.loop-list li { min-height: 250px; padding: 34px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.loop-list li > span { display: block; margin-bottom: 50px; color: #087b85; font-size: 13px; font-weight: 700; }
.loop-list h3 { margin-bottom: 12px; }
.loop-list p { color: var(--muted); font-size: 15px; line-height: 1.7; }

.editorial-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 100px; align-items: center; }
.editorial-copy .large-copy { margin: 32px 0 46px; max-width: 610px; }
.definition-list > div { padding: 24px 0; border-top: 1px solid var(--line); }
.definition-list dt { margin-bottom: 10px; font-weight: 720; }
.definition-list dd { color: var(--muted); line-height: 1.75; }
.source-note { margin-top: 26px; color: var(--muted); font-size: 13px; }
.insight-visual { position: relative; min-height: 690px; border-radius: var(--radius-lg); overflow: hidden; background: var(--ink); }
.insight-visual::before { content: ""; position: absolute; inset: 0; opacity: .62; background: linear-gradient(160deg, rgba(25,183,198,.13), transparent 45%), url("./assets/marketing/hero-backplate.jpg") 72% center / cover; }
.phone-insight { position: absolute; z-index: 1; width: 305px; right: 7%; bottom: -14%; transform: rotate(3deg); }
.insight-quote { position: absolute; z-index: 2; left: 42px; top: 48px; color: var(--white); }
.insight-quote span { display: block; margin-bottom: 12px; color: #73dce4; font-size: 13px; font-weight: 700; }
.insight-quote strong { font-size: clamp(28px, 3vw, 44px); line-height: 1.18; letter-spacing: -.04em; }

.day-section { overflow: hidden; background: var(--ink); color: var(--white); }
.day-section .section-index { color: #73dce4; }
.day-section .section-heading > p:last-child { color: rgba(255,255,255,.58); }
.scenario-signal { display: grid; grid-template-columns: 1fr auto 1fr; gap: 28px; align-items: center; margin-bottom: 70px; padding: 30px 34px; border: 1px solid var(--line-dark); border-radius: var(--radius-md); background: rgba(255,255,255,.035); }
.scenario-signal p { display: flex; flex-wrap: wrap; gap: 9px 18px; align-items: center; }
.scenario-signal p > span { width: 100%; color: #73dce4; font-size: 12px; font-weight: 700; letter-spacing: .08em; }
.scenario-signal strong { font-size: 17px; }
.scenario-signal em { padding: 7px 11px; border: 1px solid var(--line-dark); border-radius: 999px; color: rgba(255,255,255,.6); font-size: 12px; font-style: normal; }
.signal-arrow { color: var(--green); font-size: 28px; }
.day-timeline { display: grid; grid-template-columns: repeat(4, 1fr); margin: 0 0 80px; padding: 0; border-top: 1px solid var(--line-dark); list-style: none; }
.day-timeline li { position: relative; padding: 28px 26px 0 0; }
.day-timeline li::before { content: ""; position: absolute; top: -5px; left: 0; width: 9px; height: 9px; border-radius: 50%; background: var(--green); }
.day-timeline time { color: #73dce4; font-size: 12px; font-weight: 700; letter-spacing: .08em; }
.day-timeline h3 { margin: 18px 0 10px; }
.day-timeline p { color: rgba(255,255,255,.58); font-size: 14px; line-height: 1.7; }
.training-stage { min-height: 720px; border: 1px solid var(--line-dark); border-radius: var(--radius-lg); overflow: hidden; background: linear-gradient(100deg, rgba(10,23,24,.35), rgba(10,23,24,.78)), url("./assets/marketing/hero-backplate.jpg") 62% center / cover; }
.training-phone { position: absolute; z-index: 1; width: 330px; left: 14%; bottom: -16%; transform: rotate(-3deg); }
.watch-frame { position: absolute; z-index: 2; width: 310px; right: 15%; top: 18%; overflow: hidden; border: 8px solid #202d2e; border-radius: 30%; box-shadow: var(--shadow); background: #000; transform: rotate(5deg); }
.watch-frame img { display: block; width: 100%; height: auto; object-fit: contain; }
.training-stage figcaption { right: 28px; bottom: 24px; }

.evidence-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.evidence-card { position: relative; min-height: 650px; padding: 38px; border: 1px solid var(--line); border-radius: var(--radius-md); overflow: hidden; background: var(--paper); }
.evidence-card h3 { margin: 14px 0 12px; font-size: 30px; }
.evidence-card p:not(.card-label) { max-width: 480px; color: var(--muted); line-height: 1.7; }
.evidence-ai { color: var(--white); background: var(--ink); }
.evidence-ai p:not(.card-label) { color: rgba(255,255,255,.62); }
.evidence-phone { position: absolute; width: 260px; right: 32px; bottom: -32%; }
.evidence-calendar .evidence-phone { right: 50%; transform: translateX(50%); }
.evidence-nutrition { grid-column: 1 / -1; min-height: 360px; display: flex; align-items: center; background: #deeee8; }
.evidence-nutrition > div:first-child { max-width: 530px; }
.nutrition-lines { position: absolute; right: 8%; width: 40%; height: 58%; display: flex; align-items: end; gap: 9%; }
.nutrition-lines span { flex: 1; border-radius: 999px 999px 14px 14px; background: rgba(10,23,24,.12); }
.nutrition-lines span:nth-child(1) { height: 42%; }.nutrition-lines span:nth-child(2) { height: 72%; }.nutrition-lines span:nth-child(3) { height: 56%; }.nutrition-lines span:nth-child(4) { height: 88%; background: var(--green); }

.plans-section { background: var(--paper); }
.plan-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.plan-card { min-height: 440px; display: flex; flex-direction: column; padding: 42px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--white); }
.plan-card h3 { margin: 16px 0 26px; font-size: 36px; }
.plan-card ul { margin: 0; padding: 0; list-style: none; }
.plan-card li { padding: 13px 0; border-top: 1px solid var(--line); color: var(--muted); }
.plan-state { margin-top: auto; padding-top: 34px; color: #087b85; font-size: 14px; font-weight: 720; }
.plan-footnote { margin-top: 24px; color: var(--muted); font-size: 13px; }

.trust-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 100px; }
.trust-grid .large-copy { max-width: 560px; margin: 32px 0; }
.text-link { color: #087b85; font-weight: 700; }
.trust-points article { display: grid; grid-template-columns: 54px 160px 1fr; gap: 18px; padding: 24px 0; border-top: 1px solid var(--line); align-items: baseline; }
.trust-points span { color: #087b85; font-size: 13px; font-weight: 700; }
.trust-points p { color: var(--muted); line-height: 1.7; }
.compatibility { display: grid; grid-template-columns: 160px 1fr 1fr; gap: 44px; margin-top: 90px; padding-top: 30px; border-top: 1px solid var(--line); }
.compatibility p { color: var(--muted); font-size: 14px; line-height: 1.7; }
.compatibility strong { color: var(--text); }

.faq-section { background: var(--paper); }
.faq-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 100px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { position: relative; padding: 26px 48px 26px 0; cursor: pointer; list-style: none; font-size: 18px; font-weight: 680; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 4px; color: #087b85; font-size: 24px; font-weight: 400; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { padding: 0 60px 26px 0; color: var(--muted); line-height: 1.75; }

.final-section { position: relative; overflow: hidden; padding: 150px 0; color: var(--white); background: var(--ink); }
.final-section::after { content: ""; position: absolute; inset: 0 0 0 48%; opacity: .42; background: url("./assets/marketing/hero-backplate.jpg") center / cover; mask-image: linear-gradient(90deg, transparent, #000); }
.final-inner { position: relative; z-index: 1; }
.final-inner h2 { max-width: 850px; margin: 22px 0 42px; }
.store-label-large { min-height: 52px; padding-inline: 26px; }