/* ============================================================
   TENTAVA PRODUCT PAGES — full-view storytelling & pricing
   ============================================================ */

html {
  scroll-snap-type: y mandatory;
}

/* Pricing is a naturally scrolling page. Mandatory snapping would lock the
   viewport onto the footer because the pricing content itself is not a snap
   section, which prevents users from scrolling back up. */
html.pricing-page-root {
  scroll-snap-type: none;
}

body.product-site {
  background-attachment: fixed;
}

.product-site main {
  position: relative;
  z-index: 1;
}

.product-site .footer {
  scroll-snap-align: start;
  scroll-snap-stop: always;
}

.story-view {
  min-height: 100vh;
  min-height: 100svh;
  scroll-snap-align: start;
  scroll-snap-stop: always;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-height) + 32px) max(24px, calc((100vw - var(--max-width)) / 2)) 32px;
  border-bottom: 1px solid rgba(225, 225, 225, 0.10);
  overflow: hidden;
}

.story-view__grid {
  width: 100%;
  display: grid;
  grid-template-columns: minmax(0, 3.25fr) minmax(230px, 1.35fr);
  gap: clamp(32px, 6vw, 96px);
  align-items: center;
}

.story-view--reverse .story-view__grid {
  grid-template-columns: minmax(230px, 1.35fr) minmax(0, 3.25fr);
}

.story-view--reverse .story-view__device { order: 1; }
.story-view--reverse .story-view__content { order: 2; }

.story-view__content {
  max-width: 780px;
}

.story-view__kicker {
  display: block;
  margin-bottom: 18px;
  color: var(--default-text-color-fourth);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.story-view__title {
  margin-bottom: 24px;
  font-size: clamp(42px, 7vw, 92px);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.story-view__copy {
  max-width: 680px;
  font-size: clamp(17px, 1.7vw, 21px);
  line-height: 1.65;
}

.story-view__points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.story-view__point {
  padding: 8px 13px;
  border: 1px solid rgba(224, 205, 255, 0.32);
  border-radius: var(--radius-pill);
  color: var(--default-text-color);
  background: rgba(16, 25, 30, 0.28);
  font-size: 13px;
}

.story-view__device {
  height: min(82svh, 800px);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Home view transitions: content and device enter from opposite sides. */
.home-transitions .story-view__content,
.home-transitions .story-view__device {
  will-change: transform, opacity, filter;
  transition:
    opacity 0.72s ease,
    transform 0.88s cubic-bezier(0.16, 1, 0.3, 1),
    filter 0.72s ease;
}

.home-transitions .story-view__content {
  opacity: 0;
  filter: blur(7px);
  transform: translate3d(-64px, 24px, 0);
}

.home-transitions .story-view__device {
  opacity: 0;
  filter: blur(5px);
  transform: translate3d(72px, 18px, 0) scale(0.94);
  transition-delay: 0.10s;
}

.home-transitions .story-view--reverse .story-view__content {
  transform: translate3d(64px, 24px, 0);
}

.home-transitions .story-view--reverse .story-view__device {
  transform: translate3d(-72px, 18px, 0) scale(0.94);
}

.home-transitions .story-view.is-entering-back .story-view__content {
  opacity: 0;
  filter: blur(6px);
  transform: translate3d(0, -64px, 0) scale(0.98);
}

.home-transitions .story-view.is-entering-back .story-view__device {
  opacity: 0;
  filter: blur(5px);
  transform: translate3d(0, -48px, 0) scale(0.94);
}

.home-transitions .story-view.is-in-view .story-view__content,
.home-transitions .story-view.is-in-view .story-view__device {
  opacity: 1;
  filter: blur(0);
  transform: translate3d(0, 0, 0) scale(1);
}

.home-transitions .story-view.is-leaving-up .story-view__content {
  opacity: 0;
  filter: blur(4px);
  transform: translate3d(0, -38px, 0) scale(0.985);
}

.home-transitions .story-view.is-leaving-up .story-view__device {
  opacity: 0;
  filter: blur(3px);
  transform: translate3d(0, -28px, 0) scale(0.97);
}

.iphone-mockup {
  display: block;
  width: auto;
  max-width: 100%;
  height: 100%;
  object-fit: contain;
  transform: scale(1.34);
  transform-origin: center;
  filter: drop-shadow(0 28px 34px rgba(0, 0, 0, 0.34));
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: clamp(22px, 3.5vw, 48px);
  margin-bottom: 28px;
}

.brand-lockup__logo {
  width: clamp(108px, 14vw, 188px);
  height: auto;
  flex: 0 0 auto;
  filter: drop-shadow(0 18px 26px rgba(0, 0, 0, 0.22));
}

.brand-lockup__slogan {
  margin: 0;
  font-size: clamp(42px, 6vw, 82px);
  line-height: 0.98;
}

.app-store-badge {
  display: inline-block;
  margin-top: 34px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.app-store-badge:hover { transform: translateY(-2px); opacity: 0.9; }
.app-store-badge img { width: 184px; height: auto; }

.view-progress {
  position: fixed;
  right: 22px;
  top: 50%;
  z-index: 90;
  display: flex;
  flex-direction: column;
  gap: 9px;
  transform: translateY(-50%);
}

.view-progress a {
  width: 7px;
  height: 7px;
  border: 1px solid var(--default-text-color-fourth);
  border-radius: 50%;
  opacity: 0.45;
  transition: transform 0.2s, opacity 0.2s, background 0.2s;
}

.view-progress a.is-active {
  background: var(--default-text-color-fourth);
  opacity: 1;
  transform: scale(1.35);
}

/* Pricing */
.pricing-page {
  min-height: 100svh;
  padding: calc(var(--nav-height) + 72px) 0 88px;
}

.pricing-heading {
  max-width: 700px;
  margin: 0 auto 48px;
  text-align: center;
}

.pricing-heading h1 { margin-bottom: 16px; }
.pricing-heading p { font-size: 18px; }

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  align-items: stretch;
}

.price-card--coach {
  --plan-color: var(--default-text-color-fourth);
  grid-column: 1 / -1;
}

.price-card--coach .price-card__description { min-height: 0; }
.price-card--coach .price-card__features { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); }

.price-card {
  --plan-color: var(--tier-core);
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 28px;
  border: 1px solid color-mix(in srgb, var(--plan-color) 38%, transparent);
  border-radius: 24px;
  background: rgba(225, 225, 225, 0.12);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.14);
  backdrop-filter: blur(18px);
}

.price-card--pro { --plan-color: var(--tier-pro); }
.price-card--peak { --plan-color: var(--tier-peak); }

.price-card--popular {
  border: 2px solid var(--default-text-color-fourth);
  box-shadow: 0 0 0 1px rgba(224, 205, 255, 0.18), 0 18px 52px rgba(98, 0, 255, 0.22);
}

.price-card__popular {
  position: absolute;
  top: 0;
  right: 24px;
  padding: 7px 14px;
  border-radius: 0 0 12px 12px;
  background: var(--default-text-color-fourth);
  color: var(--default-text-color-contrast);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.price-card__name {
  margin-bottom: 10px;
  color: var(--plan-color);
  font-size: 34px;
}

.price-card__description {
  min-height: 78px;
  margin-bottom: 20px;
  font-size: 14px;
}

.price-card__price {
  margin-bottom: 22px;
  padding: 14px;
  border: 1px solid color-mix(in srgb, var(--plan-color) 32%, transparent);
  border-radius: 14px;
  background: color-mix(in srgb, var(--plan-color) 12%, transparent);
}

.price-card__price strong,
.price-card__price span { display: block; }
.price-card__price strong { font-size: 17px; }
.price-card__price span { margin-top: 3px; color: var(--text-secondary); font-size: 14px; }

.price-card__features {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 0;
}

.price-card__features li {
  position: relative;
  padding-left: 25px;
  color: var(--default-text-color);
  font-size: 14px;
  line-height: 1.45;
}

.price-card__features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--plan-color);
  font-weight: 700;
}

.download-view {
  min-height: 100vh;
  min-height: 100svh;
}

/* Functions: one sticky view whose content is replaced by scroll progress. */
.feature-page-root { scroll-snap-type: none; }

.feature-scroll {
  position: relative;
  height: 400vh;
  height: 400svh;
}

.feature-stage {
  position: sticky;
  top: 0;
  width: 100%;
  height: 100vh;
  height: 100svh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-height) + 32px) max(24px, calc((100vw - var(--max-width)) / 2)) 32px;
  overflow: hidden;
}

.feature-stage__grid {
  width: 100%;
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(180px, 1fr);
  gap: clamp(32px, 6vw, 96px);
  align-items: center;
}

.feature-stage__content { min-width: 0; max-width: 790px; }
.feature-stage__device {
  height: min(74svh, 720px);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.32s ease, transform 0.55s var(--ease);
}

.feature-stage__device.is-switching {
  opacity: 0;
  transform: translateY(24px) scale(0.94);
}

.feature-cube {
  position: relative;
  height: clamp(108px, 15vw, 190px);
  margin-bottom: 22px;
  perspective: 900px;
  transform-style: preserve-3d;
}

.feature-cube__face {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  margin: 0;
  font-size: clamp(42px, 7vw, 92px);
  line-height: 0.98;
  letter-spacing: -0.055em;
  backface-visibility: hidden;
  transform-style: preserve-3d;
  transition: transform 0.68s cubic-bezier(0.65, 0, 0.18, 1), opacity 0.5s ease;
  will-change: transform, opacity;
}

.feature-cube.is-resetting .feature-cube__face {
  transition: none;
}

.feature-cube__face--current {
  opacity: 1;
  transform: rotateX(0deg) translateZ(0);
  transform-origin: center center;
}

.feature-cube__face--next {
  opacity: 0;
  transform: rotateX(-90deg) translateZ(70px);
  transform-origin: center bottom;
}

.feature-cube.is-rotating .feature-cube__face--current {
  opacity: 0;
  transform: rotateX(90deg) translateZ(70px) translateY(-16px);
}

.feature-cube.is-rotating .feature-cube__face--next {
  opacity: 1;
  transform: rotateX(0deg) translateZ(0) translateY(0);
}

.feature-cube.is-reversing .feature-cube__face--current {
  opacity: 0;
  transform: rotateX(-90deg) translateZ(70px) translateY(16px);
}

.feature-cube.is-reversing .feature-cube__face--next {
  opacity: 1;
  transform: rotateX(0deg) translateZ(0) translateY(0);
}

.feature-stage__details {
  transition: opacity 0.28s ease, transform 0.42s var(--ease);
}

.feature-stage__details.is-switching {
  opacity: 0;
  transform: translateY(18px);
}

.feature-stage__hint {
  position: absolute;
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%);
  color: var(--default-text-color-fourth);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.68;
}

.feature-progress button {
  width: 7px;
  height: 7px;
  padding: 0;
  border: 1px solid var(--default-text-color-fourth);
  border-radius: 50%;
  opacity: 0.45;
  transition: transform 0.2s, opacity 0.2s, background 0.2s;
}

.feature-progress button.is-active {
  background: var(--default-text-color-fourth);
  opacity: 1;
  transform: scale(1.35);
}

@media (max-width: 900px) {
  html { scroll-snap-type: y proximity; }

  .story-view,
  .story-view--reverse {
    min-height: 100svh;
    padding-top: calc(var(--nav-height) + 40px);
    overflow: visible;
  }

  .story-view__grid,
  .story-view--reverse .story-view__grid {
    grid-template-columns: minmax(0, 1fr) minmax(120px, 0.42fr);
    gap: 24px;
  }

  .story-view--reverse .story-view__device { order: 1; }
  .story-view--reverse .story-view__content { order: 2; }
  .story-view__device { height: min(58svh, 570px); }
  .story-view__title { font-size: clamp(34px, 7vw, 64px); }
  .brand-lockup { align-items: center; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 620px; margin: 0 auto; }
  .price-card--coach { grid-column: auto; }
  .price-card--coach .price-card__features { grid-template-columns: 1fr; }
  .price-card__description { min-height: 0; }
  .feature-stage__grid { grid-template-columns: minmax(0, 1fr) minmax(120px, 0.42fr); gap: 24px; }
  .feature-stage__device { height: min(58svh, 570px); }
  .feature-cube { height: clamp(92px, 14vw, 150px); }
  .feature-cube__face { font-size: clamp(34px, 7vw, 64px); }
}

@media (max-width: 640px) {
  .story-view,
  .story-view--reverse {
    padding: calc(var(--nav-height) + 32px) 20px 28px;
  }

  .story-view__grid,
  .story-view--reverse .story-view__grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .story-view--reverse .story-view__content,
  .story-view__content { order: 1; }
  .story-view--reverse .story-view__device,
  .story-view__device { order: 2; height: min(42svh, 410px); }
  .brand-lockup__logo { width: 88px; }
  .brand-lockup__slogan { font-size: clamp(34px, 11vw, 52px); }
  .story-view__copy { font-size: 16px; }
  .view-progress { display: none; }
  .pricing-page { padding-top: calc(var(--nav-height) + 44px); }
  .feature-stage { padding: calc(var(--nav-height) + 30px) 20px 24px; align-items: flex-start; }
  .feature-stage__grid { grid-template-columns: 1fr; gap: 18px; }
  .feature-stage__device { height: min(37svh, 350px); }
  .feature-cube { height: 84px; margin-bottom: 12px; }
  .feature-cube__face { font-size: clamp(32px, 10vw, 48px); }
  .feature-stage__hint { display: none; }
  .iphone-mockup { transform: scale(1.16); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-snap-type: none; }
  .feature-cube__face,
  .feature-stage__details,
  .feature-stage__device { transition: none; }
  .home-transitions .story-view__content,
  .home-transitions .story-view__device {
    opacity: 1;
    filter: none;
    transform: none;
    transition: none;
  }
}