/* ============================================================
   POINTS — app landing page
   Themed like the app: iOS system colours and SF.
   Builds on the reset and animations in style.css.
   ============================================================ */
:root {
  /* iOS semantic colours, light */
  --ios-grouped:         #F2F2F7;   /* systemGroupedBackground — the page */
  --ios-card:            #FFFFFF;   /* secondarySystemGroupedBackground — the copy card */
  --ios-label:           #000000;
  --ios-label-2:         rgba(60, 60, 67, 0.6);
  --ios-tint:            #DA0530;   /* the app's AccentColor, same in dark */

  --stack-gap:           1.5rem;    /* body → badge, and icon → title */

  --font-ios: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display",
              system-ui, "Helvetica Neue", Arial, sans-serif;

  --phone-w:             clamp(230px, 24vw, 310px);
  --phone-depth:         calc(var(--phone-w) * 0.0063);  /* spacing between edge layers */

  /* Glacier, sampled from Apple's iPhone 18 Pro frame */
  --metal-hue:           215;
  --metal-sat:           24%;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ios-grouped:       #000000;
    --ios-card:          #1C1C1E;
    --ios-label:         #FFFFFF;
    --ios-label-2:       rgba(235, 235, 245, 0.6);
  }
}

/* Paint the root too, so Safari never shows its own canvas colour
   past the end of the page. */
.points-root {
  background-color: var(--ios-grouped);
}

.points-page {
  display: flex;
  flex-direction: column;
  min-height: 100svh;
  font-family: var(--font-ios);
  background-color: var(--ios-grouped);
  color: var(--ios-label);
  overflow-x: hidden;   /* the tilted phone can poke past the edge */
}


/* ============================================================
   LAYOUT
   ============================================================ */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  grid-template-areas: "copy device";
  align-items: center;
  gap: 2rem;
  flex: 1;
  width: 100%;
  max-width: 72rem;
  margin: 0 auto;
  padding: 1.5rem 2.5rem;
}

.hero-copy {
  grid-area: copy;
  max-width: 30rem;
  justify-self: end;
  /* the copy sits in one card, like the app's rows */
  background: var(--ios-card);
  border-radius: 1.75rem;
  padding: 2.5rem;
  animation: fadeSlideUp 0.7s ease both;
  animation-delay: 0.25s;
}

.hero-device {
  grid-area: device;
  display: flex;
  justify-content: center;
  animation: fadeSlideUp 0.9s ease both;
  animation-delay: 0.1s;
}


/* ============================================================
   COPY
   ============================================================ */
.hero-icon {
  display: block;
  width: clamp(72px, 7vw, 96px);
  height: auto;
}

.hero-title {
  font-size: clamp(2.8rem, 5.5vw, 4.25rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.025em;
  /* Match the visible body → badge gap: add the body line's space below
     its text (~0.22rem), minus the space the title font leaves above its
     capitals (~0.14em). Also overrides normalize.css's h1 margin. */
  margin: calc(var(--stack-gap) + 0.22rem - 0.14em) 0 0.9rem;
}

.hero-lead {
  font-size: clamp(1.25rem, 2vw, 1.45rem);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin-bottom: 1rem;
}

.hero-body {
  font-size: 1.0625rem;   /* 17pt body */
  line-height: 1.5;
  color: var(--ios-label-2);
  margin-bottom: var(--stack-gap);
}

/* paragraph spacing between body paragraphs; the last one keeps
   --stack-gap above the badge */
.hero-body:has(+ .hero-body) {
  margin-bottom: 0.75em;
}

.saver {
  /* the app's Saver asset, drawn inline */
  display: inline-block;
  height: 0.55em;
  width: auto;
  margin-right: 0.2em;
  vertical-align: 0.05em;
}

.hero-small {
  margin-top: 1.75rem;
  font-size: 0.8125rem;   /* 13pt footnote */
  line-height: 1.5;
  color: var(--ios-label-2);
}

.hero-small a {
  color: var(--ios-tint);
  text-decoration: none;
}

.hero-small a:hover {
  text-decoration: underline;
}


/* ============================================================
   FOOTER — small grey links, centred at the bottom
   ============================================================ */
.page-footer {
  padding: 0 1rem 1.5rem;
  text-align: center;
}

.page-footer nav {
  display: inline-flex;
  gap: 1.25rem;
  font-size: 0.8125rem;
}

.page-footer a {
  color: var(--ios-label-2);
  text-decoration: none;
}

.page-footer a:hover {
  color: var(--ios-label);
}


/* ============================================================
   APP STORE BADGE — Apple's official artwork
   ============================================================ */
.app-store-badge {
  display: inline-block;
  line-height: 0;
  border-radius: 0.6rem;
}

.app-store-badge img {
  height: 3.25rem;   /* Apple asks for at least 40px on screen */
  width: auto;
}

.app-store-badge:focus-visible {
  outline: 3px solid var(--ios-tint);
  outline-offset: 3px;
}


/* ============================================================
   PHONE — 3D stage
   Geometry is in percentages of Apple's 978×2000 device frame:
   body 17–961 × 15–1984, screen 52–926 × 50–1950.
   ============================================================ */
.stage {
  position: relative;
  perspective: 1400px;
  padding: 1.5rem 0;
}

/* Three nested wrappers so each motion runs on its own clock
   and the combination never quite repeats. */
.phone-float {
  animation: phoneFloat 6s ease-in-out infinite;
  transform-style: preserve-3d;
}

.phone-sway {
  animation: phoneSway 9s ease-in-out infinite;
  transform-style: preserve-3d;
}

.phone-roll {
  position: relative;
  width: var(--phone-w);
  aspect-ratio: 978 / 2000;
  animation: phoneRoll 7s ease-in-out infinite;
  transform-style: preserve-3d;
}

.phone-face {
  position: absolute;
  inset: 0;
  /* sit clearly in front of the edge layers so Safari doesn't
     re-sort them against the face mid-animation */
  transform: translateZ(1px);
}

.phone-frame {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.phone-edge {
  /* the metal band: rounded rects stacked behind the face, each a
     touch lighter or darker (--l) so the side reads as rounded */
  position: absolute;
  top: 0.75%;
  bottom: 0.8%;
  left: 1.74%;
  right: 1.74%;
  border-radius: 18.2% / 8.74%;
  background: linear-gradient(
    90deg,
    hsl(var(--metal-hue) var(--metal-sat) calc(var(--l) - 8%)),
    hsl(var(--metal-hue) var(--metal-sat) var(--l)) 12%,
    hsl(var(--metal-hue) var(--metal-sat) var(--l)) 88%,
    hsl(var(--metal-hue) var(--metal-sat) calc(var(--l) + 6%))
  );
  transform: translateZ(calc(var(--i) * var(--phone-depth) * -1));
}

.phone-edge--back {
  /* frosted back glass */
  background: hsl(var(--metal-hue) 22% 80%);
}

.phone-screen {
  position: absolute;
  left: 5.2%;
  top: 2.45%;
  width: 89.6%;
  height: 95.1%;
  border-radius: 15.8% / 7.26%;
  overflow: hidden;
  background: var(--ios-grouped);
  /* Safari: keeps the rounded clip stable inside a 3D transform */
  -webkit-mask-image: -webkit-radial-gradient(white, black);
  isolation: isolate;
}

.phone-screen picture {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.8s ease;
  /* keep every screenshot on its own layer permanently; Safari flickers
     when layers are created and torn down inside a 3D scene */
  will-change: opacity;
}

.phone-screen picture.is-active {
  opacity: 1;
}

.phone-screen img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.phone-glare {
  /* a sheen that slides across the glass as the phone sways */
  position: absolute;
  inset: 0;
  background: linear-gradient(
    115deg,
    transparent 35%,
    rgba(255, 255, 255, 0.16) 48%,
    transparent 60%
  );
  background-size: 300% 100%;
  pointer-events: none;
  animation: phoneGlare 9s ease-in-out infinite;
}



/* ============================================================
   PHONE — motion
   Screen faces left (negative rotateY), towards the copy.
   ============================================================ */
@keyframes phoneFloat {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-14px); }
}

@keyframes phoneSway {
  0%, 100% { transform: rotateY(-24deg); }
  50%      { transform: rotateY(-13deg); }
}

@keyframes phoneRoll {
  0%, 100% { transform: rotateX(5deg) rotateZ(-3deg); }
  50%      { transform: rotateX(8deg) rotateZ(2deg); }
}

@keyframes phoneGlare {
  0%, 100% { background-position: 100% 0; }
  50%      { background-position: 20% 0; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-copy,
  .hero-device,
  .phone-float,
  .phone-roll,
  .phone-glare {
    animation: none;
  }

  .phone-sway {
    animation: none;
    transform: rotateY(-18deg) rotateX(5deg);
  }
}


/* ============================================================
   RESPONSIVE — stacks at ≤ 800px: phone, then copy
   ============================================================ */
@media (max-width: 800px) {
  :root {
    --phone-w: min(190px, 48vw);
  }

  .hero {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas:
      "device"
      "copy";
    gap: 0.5rem;
    padding: 1.5rem 1rem 2rem;
  }

  .hero-copy {
    justify-self: stretch;
    max-width: 34rem;
    width: 100%;
    margin: 0 auto;
    padding: 1.75rem 1.5rem;
  }

  .stage {
    padding: 1rem 0 1.5rem;
  }

  /* a gentler angle when centred */
  @keyframes phoneSway {
    0%, 100% { transform: rotateY(-16deg); }
    50%      { transform: rotateY(-6deg); }
  }
}