/* ============================================================
   DentaBiome — Design System
   Direction: "Luminous Biofilm" — enamel-white forms suspended
   in a dark, glowing aqueous interior. Palette and light are
   derived from the product photography itself.
   ============================================================ */

/* ---------- 1. Tokens ---------- */
:root {
  /* Core palette */
  --abyss:      #050D1A;
  --deep:       #0A1B2E;
  --slate:      #12293F;
  --slate-2:    #1B3A55;
  --enamel:     #EDF6FA;
  --mist:       #9DB6C8;
  --mist-dim:   #6D8699;

  /* Accents — pulled from the bottle + tooth imagery */
  --aqua:       #5FE3D0;
  --aqua-deep:  #1FA893;
  --cap:        #2F6BE0;
  --cap-light:  #6FA0FF;
  --plum:       #8B3A7A;
  --cranberry:  #D94257;
  --gold:       #E8B84A;

  /* Surfaces */
  --glass:      rgba(237, 246, 250, 0.055);
  --glass-2:    rgba(237, 246, 250, 0.085);
  --hairline:   rgba(157, 182, 200, 0.16);
  --hairline-2: rgba(157, 182, 200, 0.30);

  /* Type */
  --display: "Bricolage Grotesque", "Archivo", system-ui, sans-serif;
  --body:    "Instrument Sans", "Outfit", system-ui, -apple-system, sans-serif;
  --mono:    "JetBrains Mono", ui-monospace, "SFMono-Regular", monospace;

  /* Scale */
  --t-hero:  clamp(2.6rem, 6.4vw, 5.1rem);
  --t-h2:    clamp(2rem, 4.1vw, 3.35rem);
  --t-h3:    clamp(1.2rem, 1.9vw, 1.5rem);
  --t-lead:  clamp(1.02rem, 1.35vw, 1.19rem);
  --t-body:  1rem;
  --t-small: 0.875rem;
  --t-micro: 0.72rem;

  /* Rhythm */
  --gut: clamp(1.25rem, 4vw, 2.5rem);
  --max: 1240px;
  --sec-y: clamp(4.5rem, 9vw, 8.5rem);

  --r-sm: 10px;
  --r-md: 18px;
  --r-lg: 28px;
  --r-xl: 40px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-io: cubic-bezier(0.65, 0, 0.35, 1);
}

/* ---------- 2. Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--body);
  font-size: var(--t-body);
  line-height: 1.68;
  color: var(--mist);
  background: var(--abyss);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, picture, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
ul, ol { list-style: none; }

::selection { background: var(--aqua); color: var(--abyss); }

:focus-visible {
  outline: 2px solid var(--aqua);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- 3. Ambient field ---------- */
.field {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.field::before,
.field::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(110px);
  opacity: 0.42;
}
.field::before {
  width: 62vw; height: 62vw;
  top: -22vw; right: -16vw;
  background: radial-gradient(circle, var(--cap) 0%, transparent 66%);
  animation: drift-a 26s var(--ease-io) infinite alternate;
}
.field::after {
  width: 54vw; height: 54vw;
  bottom: -20vw; left: -14vw;
  background: radial-gradient(circle, var(--aqua-deep) 0%, transparent 66%);
  animation: drift-b 32s var(--ease-io) infinite alternate;
}
@keyframes drift-a {
  to { transform: translate3d(-9vw, 7vw, 0) scale(1.16); }
}
@keyframes drift-b {
  to { transform: translate3d(8vw, -6vw, 0) scale(1.12); }
}

/* Fine grain overlay — keeps the gradients from looking synthetic */
.grain {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- 4. Layout primitives ---------- */
.shell {
  position: relative;
  z-index: 2;
}
.wrap {
  width: 100%;
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--gut);
}
.wrap--narrow { max-width: 860px; }

.section { padding-block: var(--sec-y); position: relative; }
.section--tight { padding-block: clamp(3rem, 6vw, 5rem); }
.section--edge { border-top: 1px solid var(--hairline); }

/* ---------- 5. Type ---------- */
h1, h2, h3, h4 {
  font-family: var(--display);
  color: var(--enamel);
  line-height: 1.06;
  letter-spacing: -0.028em;
  font-weight: 700;
  font-variation-settings: "wdth" 96, "opsz" 32;
}

.eyebrow {
  font-family: var(--mono);
  font-size: var(--t-micro);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--aqua);
  display: inline-flex;
  align-items: center;
  gap: 0.7em;
  margin-bottom: 1.1rem;
}
.eyebrow::before {
  content: "";
  width: 26px; height: 1px;
  background: var(--aqua);
  opacity: 0.65;
}

.h-hero {
  font-size: var(--t-hero);
  letter-spacing: -0.042em;
  font-variation-settings: "wdth" 92, "opsz" 48;
}
.h2 { font-size: var(--t-h2); margin-bottom: 1.1rem; }
.h3 { font-size: var(--t-h3); letter-spacing: -0.02em; margin-bottom: 0.6rem; }

.lead {
  font-size: var(--t-lead);
  color: var(--mist);
  max-width: 62ch;
  line-height: 1.72;
}
.muted { color: var(--mist-dim); }
.fine { font-size: var(--t-small); line-height: 1.62; color: var(--mist-dim); }

.glow-text {
  background: linear-gradient(104deg, var(--aqua) 0%, var(--cap-light) 55%, var(--enamel) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.head { max-width: 780px; margin-bottom: clamp(2.4rem, 4.5vw, 3.6rem); }
.head--mid { margin-inline: auto; text-align: center; }
.head--mid .eyebrow { justify-content: center; }
.head--mid .lead { margin-inline: auto; }

/* ---------- 6. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6em;
  padding: 1.02rem 2rem;
  border-radius: 100px;
  font-family: var(--body);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.005em;
  line-height: 1;
  cursor: pointer;
  position: relative;
  isolation: isolate;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
  text-align: center;
}
.btn--primary {
  background: linear-gradient(135deg, var(--aqua) 0%, var(--cap) 100%);
  color: var(--abyss);
  box-shadow: 0 10px 30px -10px rgba(47, 107, 224, 0.7),
              0 0 0 1px rgba(95, 227, 208, 0.28) inset;
}
.btn--primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 46px -12px rgba(47, 107, 224, 0.85),
              0 0 0 1px rgba(95, 227, 208, 0.42) inset;
}
.btn--ghost {
  background: var(--glass);
  color: var(--enamel);
  border: 1px solid var(--hairline-2);
  backdrop-filter: blur(14px);
}
.btn--ghost:hover {
  background: var(--glass-2);
  border-color: var(--aqua);
  transform: translateY(-3px);
}
.btn--wide { width: 100%; }
.btn--lg { padding: 1.22rem 2.6rem; font-size: 1.03rem; }

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2rem;
}

/* ---------- 7. Announcement + Nav ---------- */
.announce {
  background: linear-gradient(90deg, var(--cap) 0%, var(--plum) 52%, var(--cranberry) 100%);
  color: #fff;
  text-align: center;
  padding: 0.62rem var(--gut);
  font-size: var(--t-small);
  font-weight: 600;
  position: relative;
  z-index: 60;
}
.announce b { font-family: var(--mono); font-weight: 700; letter-spacing: 0.02em; }

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(5, 13, 26, 0.72);
  backdrop-filter: blur(22px) saturate(150%);
  border-bottom: 1px solid var(--hairline);
  transition: background 0.35s var(--ease);
}
.nav__in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  height: 72px;
}
.brand {
  font-family: var(--display);
  font-size: 1.32rem;
  font-weight: 800;
  color: var(--enamel);
  letter-spacing: -0.035em;
  font-variation-settings: "wdth" 88;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.brand__dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--aqua);
  box-shadow: 0 0 14px var(--aqua);
}
.nav__links {
  display: flex;
  gap: 1.9rem;
  font-size: 0.9rem;
  font-weight: 500;
}
.nav__links a {
  color: var(--mist);
  position: relative;
  padding-block: 0.4rem;
  transition: color 0.25s var(--ease);
}
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 1.5px;
  background: var(--aqua);
  transition: width 0.32s var(--ease);
}
.nav__links a:hover { color: var(--enamel); }
.nav__links a:hover::after { width: 100%; }

.nav__cta { display: flex; align-items: center; gap: 0.75rem; }
.nav__cta .btn { padding: 0.72rem 1.4rem; font-size: 0.85rem; }

.burger { display: none; width: 26px; height: 18px; position: relative; }
.burger span {
  position: absolute; left: 0;
  width: 100%; height: 2px;
  background: var(--enamel);
  border-radius: 2px;
  transition: 0.3s var(--ease);
}
.burger span:nth-child(1) { top: 0; }
.burger span:nth-child(2) { top: 8px; }
.burger span:nth-child(3) { top: 16px; }
.burger[aria-expanded="true"] span:nth-child(1) { top: 8px; transform: rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { top: 8px; transform: rotate(-45deg); }

/* ============================================================
   8. SIGNATURE — The 3D Chamber
   Five depth layers on a shared preserve-3d stage that tilts
   toward the pointer. This is the one place we spend boldness.
   ============================================================ */
.hero { padding-block: clamp(3.2rem, 7vw, 6rem) clamp(4rem, 8vw, 7rem); }
.hero__grid {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: clamp(2.2rem, 5vw, 4.5rem);
  align-items: center;
}

.rating {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.42rem 0.95rem;
  border-radius: 100px;
  background: var(--glass);
  border: 1px solid var(--hairline);
  font-size: var(--t-small);
  margin-bottom: 1.4rem;
  backdrop-filter: blur(10px);
}
.rating__pill {
  font-family: var(--mono);
  font-size: var(--t-micro);
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--aqua);
}

.hero__lead { margin-top: 1.5rem; }

.ticks { margin-top: 1.9rem; display: grid; gap: 0.72rem; }
.ticks li {
  display: flex;
  align-items: flex-start;
  gap: 0.72rem;
  font-size: 0.955rem;
  color: var(--enamel);
}
.ticks svg { flex: 0 0 19px; margin-top: 3px; color: var(--aqua); }

/* --- Stage --- */
.stage {
  position: relative;
  perspective: 1400px;
  perspective-origin: 50% 45%;
  min-height: clamp(420px, 52vw, 620px);
  display: grid;
  place-items: center;
}
.stage__3d {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  display: grid;
  place-items: center;
  transition: transform 0.9s var(--ease);
  will-change: transform;
}

.layer {
  position: absolute;
  transform-style: preserve-3d;
  display: grid;
  place-items: center;
}

/* z-depth 1 — halo */
.layer--halo {
  width: min(94%, 540px);
  aspect-ratio: 1;
  transform: translateZ(-140px);
  background:
    radial-gradient(circle at 50% 50%, rgba(95, 227, 208, 0.30) 0%, transparent 62%),
    radial-gradient(circle at 62% 38%, rgba(47, 107, 224, 0.34) 0%, transparent 66%);
  filter: blur(46px);
  border-radius: 50%;
  animation: pulse-halo 7.5s ease-in-out infinite;
}
@keyframes pulse-halo {
  0%, 100% { opacity: 0.78; transform: translateZ(-140px) scale(1); }
  50%      { opacity: 1;    transform: translateZ(-140px) scale(1.08); }
}

/* z-depth 2 — orbit rings */
.layer--rings {
  width: min(90%, 520px);
  aspect-ratio: 1;
  transform: translateZ(-70px);
}
.ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid var(--hairline-2);
}
.ring--a { animation: spin 34s linear infinite; border-style: dashed; opacity: 0.5; }
.ring--b { inset: 11%; border-color: rgba(95, 227, 208, 0.24); animation: spin 24s linear infinite reverse; }
.ring--c { inset: 23%; border-color: rgba(47, 107, 224, 0.26); animation: spin 44s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* z-depth 3 — tooth, held up and to the left so it stays legible */
.layer--tooth {
  width: min(52%, 268px);
  transform: translate3d(-24%, -20%, 30px);
  animation: float-tooth 9s ease-in-out infinite;
}
.layer--tooth img { filter: drop-shadow(0 24px 54px rgba(95, 227, 208, 0.42)); }
@keyframes float-tooth {
  0%, 100% { transform: translate3d(-24%, -20%, 30px); }
  50%      { transform: translate3d(-24%, -25%, 30px); }
}

/* z-depth 4 — bottle, dropped low and right so it clears the tooth */
.layer--bottle {
  width: min(84%, 430px);
  transform: translate3d(13%, 20%, 120px);
  animation: float-bottle 6.5s ease-in-out infinite;
}
.layer--bottle img {
  filter: drop-shadow(0 40px 62px rgba(5, 13, 26, 0.9))
          drop-shadow(0 0 40px rgba(47, 107, 224, 0.22));
}
@keyframes float-bottle {
  0%, 100% { transform: translate3d(13%, 20%, 120px); }
  50%      { transform: translate3d(13%, 17%, 120px); }
}

/* Generic float used by chips and the guarantee seal */
@keyframes float-slow {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-14px); }
}

/* z-depth 5 — floating data chips */
.chip {
  position: absolute;
  padding: 0.52rem 0.9rem;
  border-radius: 100px;
  background: rgba(10, 27, 46, 0.82);
  border: 1px solid var(--hairline-2);
  backdrop-filter: blur(16px);
  font-family: var(--mono);
  font-size: var(--t-micro);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--enamel);
  white-space: nowrap;
  box-shadow: 0 12px 30px -10px rgba(0, 0, 0, 0.7);
}
.chip i { color: var(--aqua); font-style: normal; }
.chip--1 { top: 6%;    right: 2%;  transform: translateZ(190px); animation: chip-a 8s ease-in-out infinite; }
.chip--2 { top: 46%;   left: -4%;  transform: translateZ(210px); animation: chip-b 7s ease-in-out infinite 0.6s; }
.chip--3 { bottom: 6%; left: -2%;  transform: translateZ(175px); animation: chip-a 9.5s ease-in-out infinite 1.2s; }
@keyframes chip-a {
  0%, 100% { transform: translate3d(0, 0, 190px); }
  50%      { transform: translate3d(0, -13px, 190px); }
}
@keyframes chip-b {
  0%, 100% { transform: translate3d(0, 0, 210px); }
  50%      { transform: translate3d(0, -10px, 210px); }
}

/* ---------- 9. Trust marquee ---------- */
.marquee {
  border-block: 1px solid var(--hairline);
  background: rgba(10, 27, 46, 0.55);
  overflow: hidden;
  padding-block: 1.05rem;
  position: relative;
}
.marquee::before, .marquee::after {
  content: "";
  position: absolute;
  top: 0; bottom: 0;
  width: 130px;
  z-index: 2;
  pointer-events: none;
}
.marquee::before { left: 0;  background: linear-gradient(90deg, var(--abyss), transparent); }
.marquee::after  { right: 0; background: linear-gradient(270deg, var(--abyss), transparent); }
.marquee__track {
  display: flex;
  gap: 3.2rem;
  width: max-content;
  animation: slide 34s linear infinite;
}
.marquee__track span {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--mono);
  font-size: var(--t-micro);
  letter-spacing: 0.17em;
  text-transform: uppercase;
  color: var(--mist);
  white-space: nowrap;
}
.marquee__track span i { color: var(--aqua); font-style: normal; font-size: 1rem; }
@keyframes slide { to { transform: translateX(-50%); } }

/* ---------- 10. Cards ---------- */
.grid { display: grid; gap: 1.15rem; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  position: relative;
  padding: clamp(1.5rem, 2.4vw, 2.1rem);
  border-radius: var(--r-md);
  background: var(--glass);
  border: 1px solid var(--hairline);
  backdrop-filter: blur(16px);
  transition: transform 0.45s var(--ease), border-color 0.45s var(--ease), background 0.45s var(--ease);
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(520px circle at var(--mx, 50%) var(--my, 0%), rgba(95, 227, 208, 0.10), transparent 42%);
  opacity: 0;
  transition: opacity 0.45s var(--ease);
  pointer-events: none;
}
.card:hover {
  transform: translateY(-6px);
  border-color: var(--hairline-2);
  background: var(--glass-2);
}
.card:hover::before { opacity: 1; }
.card__icon {
  width: 46px; height: 46px;
  border-radius: 13px;
  display: grid;
  place-items: center;
  font-size: 1.35rem;
  margin-bottom: 1.05rem;
  background: linear-gradient(140deg, rgba(95,227,208,0.16), rgba(47,107,224,0.16));
  border: 1px solid var(--hairline-2);
}
.card p { font-size: 0.945rem; }

/* Numbered step cards — numbering is used only where order is real */
.step { counter-increment: step; }
.step__n {
  font-family: var(--mono);
  font-size: var(--t-micro);
  letter-spacing: 0.16em;
  color: var(--aqua);
  display: block;
  margin-bottom: 0.9rem;
}
.step__n::before { content: "STEP " counter(step, decimal-leading-zero); }
.steps { counter-reset: step; }

/* ---------- 11. 3D flip cards (ingredients) ---------- */
.flip { perspective: 1200px; min-height: 268px; }
.flip__in {
  position: relative;
  width: 100%; height: 100%;
  min-height: 268px;
  transform-style: preserve-3d;
  transition: transform 0.78s var(--ease);
}
.flip:hover .flip__in,
.flip:focus-within .flip__in { transform: rotateY(180deg); }

.flip__face {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: var(--r-md);
  padding: clamp(1.4rem, 2.2vw, 1.9rem);
  border: 1px solid var(--hairline);
  background: var(--glass);
  backdrop-filter: blur(16px);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.flip__face--back {
  transform: rotateY(180deg);
  background: linear-gradient(150deg, rgba(47,107,224,0.15), rgba(139,58,122,0.13));
  border-color: var(--hairline-2);
}
.flip__hint {
  font-family: var(--mono);
  font-size: var(--t-micro);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mist-dim);
  margin-top: auto;
  padding-top: 1.1rem;
}
.flip__face--back p { font-size: 0.93rem; color: var(--enamel); opacity: 0.9; }

/* ---------- 12. Comparison table ---------- */
.tbl-wrap {
  border-radius: var(--r-lg);
  border: 1px solid var(--hairline);
  background: var(--glass);
  backdrop-filter: blur(18px);
  overflow: hidden;
}
.tbl { width: 100%; border-collapse: collapse; font-size: 0.94rem; }
.tbl th, .tbl td {
  padding: 1.02rem 1.3rem;
  text-align: left;
  border-bottom: 1px solid var(--hairline);
}
.tbl thead th {
  font-family: var(--mono);
  font-size: var(--t-micro);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--enamel);
  background: rgba(18, 41, 63, 0.7);
}
.tbl thead th:last-child { color: var(--aqua); }
.tbl tbody tr:last-child th, .tbl tbody tr:last-child td { border-bottom: none; }
.tbl tbody th { font-weight: 600; color: var(--enamel); font-family: var(--body); }
.tbl td:last-child { color: var(--enamel); }
.tbl tbody tr { transition: background 0.3s var(--ease); }
.tbl tbody tr:hover { background: rgba(95, 227, 208, 0.045); }

/* ---------- 13. Split media ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4.2rem);
  align-items: center;
}
.split__media { position: relative; display: grid; place-items: center; }
.split__media img { position: relative; z-index: 2; }
.split__media::after {
  content: "";
  position: absolute;
  width: 78%; aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(95,227,208,0.22), transparent 65%);
  filter: blur(52px);
  z-index: 1;
}

/* ---------- 14. Pricing ---------- */
.prices {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
  align-items: end;
  perspective: 1600px;
}
.price {
  position: relative;
  border-radius: var(--r-lg);
  border: 1px solid var(--hairline);
  background: linear-gradient(172deg, rgba(18,41,63,0.9), rgba(10,27,46,0.94));
  padding: 2rem 1.6rem 1.7rem;
  text-align: center;
  transform-style: preserve-3d;
  transition: transform 0.5s var(--ease), border-color 0.5s var(--ease), box-shadow 0.5s var(--ease);
}
.price:hover {
  transform: translateY(-10px) rotateX(4deg);
  border-color: var(--hairline-2);
  box-shadow: 0 34px 66px -24px rgba(0,0,0,0.85);
}
.price--best {
  border-color: rgba(95, 227, 208, 0.5);
  background: linear-gradient(172deg, rgba(27,58,85,0.94), rgba(10,27,46,0.96));
  box-shadow: 0 26px 60px -26px rgba(47,107,224,0.6);
}
.price--best:hover { box-shadow: 0 40px 78px -26px rgba(47,107,224,0.75); }

.price__flag {
  position: absolute;
  top: -13px; left: 50%;
  transform: translateX(-50%);
  padding: 0.36rem 1rem;
  border-radius: 100px;
  background: linear-gradient(135deg, var(--aqua), var(--cap));
  color: var(--abyss);
  font-family: var(--mono);
  font-size: var(--t-micro);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  white-space: nowrap;
}
.price__name {
  font-family: var(--display);
  font-size: 1.28rem;
  color: var(--enamel);
  letter-spacing: -0.02em;
}
.price__supply {
  font-family: var(--mono);
  font-size: var(--t-micro);
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--mist-dim);
  margin-bottom: 1.2rem;
  display: block;
}
.price__img {
  height: 178px;
  display: grid;
  place-items: center;
  margin-bottom: 1.1rem;
  position: relative;
}
.price__img img {
  max-height: 100%;
  width: auto;
  filter: drop-shadow(0 22px 30px rgba(0,0,0,0.6));
  transition: transform 0.5s var(--ease);
}
.price:hover .price__img img { transform: scale(1.06) translateY(-4px); }

.price__unit { display: flex; align-items: baseline; justify-content: center; gap: 0.3rem; }
.price__unit b {
  font-family: var(--display);
  font-size: 3.1rem;
  color: var(--enamel);
  line-height: 1;
  letter-spacing: -0.04em;
}
.price__unit span { font-size: 0.85rem; color: var(--mist-dim); }
.price__total {
  font-family: var(--mono);
  font-size: var(--t-small);
  color: var(--mist);
  margin: 0.65rem 0 1.25rem;
}
.price__total del { color: var(--mist-dim); opacity: 0.65; margin-right: 0.35rem; }
.price__list {
  display: grid;
  gap: 0.5rem;
  margin: 1.3rem 0 0;
  text-align: left;
  font-size: 0.87rem;
}
.price__list li { display: flex; gap: 0.55rem; align-items: flex-start; }
.price__list svg { flex: 0 0 15px; margin-top: 4px; color: var(--aqua); }

/* ---------- 15. Bonuses + guarantee ---------- */
.bonus {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.6rem;
  align-items: start;
}
.bonus__tag {
  font-family: var(--mono);
  font-size: var(--t-micro);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.6rem;
  display: block;
}
.bonus__val {
  font-family: var(--mono);
  font-size: var(--t-small);
  color: var(--enamel);
  margin-top: 1rem;
}
.bonus__val del { color: var(--mist-dim); }
.bonus__val b { color: var(--aqua); }

.guarantee {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: clamp(2rem, 4vw, 3.4rem);
  align-items: center;
  padding: clamp(2rem, 4vw, 3.4rem);
  border-radius: var(--r-xl);
  border: 1px solid var(--hairline-2);
  background: linear-gradient(140deg, rgba(27,58,85,0.62), rgba(10,27,46,0.86));
  backdrop-filter: blur(18px);
}
.guarantee__seal { position: relative; display: grid; place-items: center; }
.guarantee__seal img {
  position: relative; z-index: 2;
  animation: float-slow 8s ease-in-out infinite;
  filter: drop-shadow(0 20px 40px rgba(232, 184, 74, 0.28));
}
.guarantee__seal::after {
  content: "";
  position: absolute;
  width: 74%; aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(232,184,74,0.34), transparent 66%);
  filter: blur(42px);
}

/* ---------- 16. Testimonials ---------- */
.quote {
  padding: 1.8rem;
  border-radius: var(--r-md);
  border: 1px solid var(--hairline);
  background: var(--glass);
  backdrop-filter: blur(14px);
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}
.quote__stars { color: var(--gold); letter-spacing: 0.16em; font-size: 0.9rem; }
.quote p { font-size: 0.96rem; color: var(--enamel); opacity: 0.92; }
.quote__who {
  display: flex; align-items: center; gap: 0.8rem;
  margin-top: auto; padding-top: 0.6rem;
  border-top: 1px solid var(--hairline);
}
.quote__av {
  width: 40px; height: 40px;
  border-radius: 50%;
  display: grid; place-items: center;
  background: linear-gradient(140deg, var(--cap), var(--plum));
  color: #fff;
  font-family: var(--display);
  font-weight: 700;
  font-size: 1rem;
}
.quote__meta { font-size: 0.83rem; line-height: 1.4; }
.quote__meta b { color: var(--enamel); display: block; font-weight: 600; }

/* ---------- 17. FAQ ---------- */
.faq { display: grid; gap: 0.7rem; }
.faq details {
  border: 1px solid var(--hairline);
  border-radius: var(--r-md);
  background: var(--glass);
  backdrop-filter: blur(14px);
  overflow: hidden;
  transition: border-color 0.35s var(--ease);
}
.faq details[open] { border-color: var(--hairline-2); }
.faq summary {
  list-style: none;
  cursor: pointer;
  padding: 1.22rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
  font-family: var(--display);
  font-size: 1.03rem;
  font-weight: 600;
  color: var(--enamel);
  letter-spacing: -0.015em;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-family: var(--mono);
  font-size: 1.32rem;
  color: var(--aqua);
  flex: 0 0 auto;
  transition: transform 0.35s var(--ease);
  line-height: 1;
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq__body { padding: 0 1.5rem 1.35rem; font-size: 0.945rem; }

/* ---------- 18. Pros / cons ---------- */
.pc { padding: clamp(1.6rem, 2.6vw, 2.2rem); border-radius: var(--r-lg); border: 1px solid var(--hairline); background: var(--glass); backdrop-filter: blur(16px); }
.pc--yes { border-color: rgba(95, 227, 208, 0.3); }
.pc--note { border-color: rgba(232, 184, 74, 0.26); }
.pc ul { display: grid; gap: 0.68rem; margin-top: 1.2rem; }
.pc li { display: flex; gap: 0.65rem; align-items: flex-start; font-size: 0.93rem; }
.pc li svg { flex: 0 0 16px; margin-top: 4px; }
.pc--yes li svg { color: var(--aqua); }
.pc--note li svg { color: var(--gold); }

/* ---------- 19. CTA band ---------- */
.band {
  border-radius: var(--r-xl);
  padding: clamp(2.6rem, 6vw, 5rem) clamp(1.6rem, 4vw, 3.4rem);
  text-align: center;
  background:
    radial-gradient(circle at 22% 18%, rgba(47,107,224,0.28), transparent 52%),
    radial-gradient(circle at 78% 84%, rgba(95,227,208,0.22), transparent 55%),
    linear-gradient(160deg, rgba(27,58,85,0.8), rgba(5,13,26,0.94));
  border: 1px solid var(--hairline-2);
  position: relative;
  overflow: hidden;
}

/* ---------- 20. Footer ---------- */
.foot {
  border-top: 1px solid var(--hairline);
  background: rgba(5, 13, 26, 0.7);
  padding-block: clamp(3rem, 6vw, 4.4rem) 2rem;
  margin-top: clamp(3rem, 6vw, 5rem);
}
.foot__grid {
  display: grid;
  grid-template-columns: 1.7fr 1fr 1fr 1fr;
  gap: 2.4rem;
  padding-bottom: 2.6rem;
  border-bottom: 1px solid var(--hairline);
}
.foot h4 {
  font-family: var(--mono);
  font-size: var(--t-micro);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--enamel);
  margin-bottom: 1.1rem;
  font-weight: 600;
}
.foot ul { display: grid; gap: 0.62rem; font-size: 0.9rem; }
.foot ul a { color: var(--mist); transition: color 0.25s var(--ease); }
.foot ul a:hover { color: var(--aqua); }
.foot__legal { padding-top: 1.8rem; display: grid; gap: 1.1rem; }
.foot__legal p { font-size: 0.79rem; line-height: 1.66; color: var(--mist-dim); }
.foot__legal strong { color: var(--mist); }
.foot__bar {
  display: flex; flex-wrap: wrap; gap: 1rem;
  justify-content: space-between; align-items: center;
  padding-top: 1.4rem; margin-top: 0.6rem;
  border-top: 1px solid var(--hairline);
  font-size: 0.82rem;
}
.foot__bar nav { display: flex; flex-wrap: wrap; gap: 1.3rem; }

/* ---------- 21. Sticky mobile CTA ---------- */
.dock {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 45;
  padding: 0.8rem var(--gut) calc(0.8rem + env(safe-area-inset-bottom));
  background: rgba(5, 13, 26, 0.9);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--hairline);
  transform: translateY(110%);
  transition: transform 0.45s var(--ease);
}
.dock.is-on { transform: translateY(0); }

/* ---------- 22. Legal page typography ---------- */
.doc { max-width: 820px; margin-inline: auto; }
.doc h1 { font-size: clamp(2.1rem, 4.6vw, 3.1rem); margin-bottom: 0.7rem; }
.doc h2 {
  font-size: clamp(1.25rem, 2.2vw, 1.6rem);
  margin: 2.6rem 0 0.85rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--hairline);
}
.doc h3 { font-size: 1.08rem; margin: 1.7rem 0 0.55rem; }
.doc p, .doc li { font-size: 0.975rem; line-height: 1.78; }
.doc p { margin-bottom: 1rem; }
.doc ul, .doc ol { margin: 0 0 1.2rem 0; display: grid; gap: 0.55rem; }
.doc ul li { padding-left: 1.35rem; position: relative; }
.doc ul li::before {
  content: ""; position: absolute; left: 0; top: 0.66em;
  width: 6px; height: 6px; border-radius: 50%; background: var(--aqua);
}
.doc ol { counter-reset: n; }
.doc ol li { padding-left: 1.9rem; position: relative; counter-increment: n; }
.doc ol li::before {
  content: counter(n) ".";
  position: absolute; left: 0; top: 0;
  font-family: var(--mono); font-size: 0.85rem; color: var(--aqua);
}
.doc a { color: var(--aqua); text-decoration: underline; text-underline-offset: 3px; }
.doc strong { color: var(--enamel); font-weight: 600; }
.doc__meta {
  font-family: var(--mono);
  font-size: var(--t-micro);
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--mist-dim);
  margin-bottom: 2.4rem;
}
.callout {
  padding: 1.35rem 1.5rem;
  border-radius: var(--r-md);
  border: 1px solid var(--hairline-2);
  border-left: 3px solid var(--aqua);
  background: var(--glass);
  margin: 1.6rem 0;
}
.callout p:last-child { margin-bottom: 0; }
.callout--warn { border-left-color: var(--gold); }

/* ---------- 23. Contact form ---------- */
.form { display: grid; gap: 1.05rem; }
.field-row { display: grid; gap: 0.42rem; }
.field-row label {
  font-family: var(--mono);
  font-size: var(--t-micro);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mist);
}
.field-row input, .field-row textarea, .field-row select {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: var(--r-sm);
  background: rgba(5, 13, 26, 0.6);
  border: 1px solid var(--hairline-2);
  color: var(--enamel);
  font-family: var(--body);
  font-size: 0.96rem;
  transition: border-color 0.28s var(--ease), background 0.28s var(--ease);
}
.field-row input:focus, .field-row textarea:focus, .field-row select:focus {
  outline: none;
  border-color: var(--aqua);
  background: rgba(5, 13, 26, 0.85);
}
.field-row textarea { resize: vertical; min-height: 148px; }

/* ---------- 24. Scroll reveal ---------- */
.rise {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.75s var(--ease), transform 0.75s var(--ease);
}
.rise.is-in { opacity: 1; transform: none; }
.rise[data-d="1"] { transition-delay: 0.09s; }
.rise[data-d="2"] { transition-delay: 0.18s; }
.rise[data-d="3"] { transition-delay: 0.27s; }
.rise[data-d="4"] { transition-delay: 0.36s; }
.rise[data-d="5"] { transition-delay: 0.45s; }

/* ---------- 25. Utilities ---------- */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.skip {
  position: absolute; left: 50%; top: -60px;
  transform: translateX(-50%);
  z-index: 100;
  padding: 0.7rem 1.3rem;
  background: var(--aqua); color: var(--abyss);
  border-radius: 0 0 var(--r-sm) var(--r-sm);
  font-weight: 700; font-size: 0.9rem;
  transition: top 0.25s var(--ease);
}
.skip:focus { top: 0; }
.mt-xl { margin-top: clamp(2.4rem, 4.5vw, 3.6rem); }
.mt-lg { margin-top: 2rem; }
.center { text-align: center; }

/* ---------- 26. Responsive ---------- */
@media (max-width: 1024px) {
  .hero__grid { grid-template-columns: 1fr; }
  .stage { order: -1; min-height: 380px; margin-bottom: 0.5rem; }
  .layer--tooth { width: min(46%, 210px); }
  .layer--bottle { width: min(76%, 360px); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .foot__grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .guarantee { grid-template-columns: 1fr; text-align: center; }
  .guarantee__seal { max-width: 240px; margin-inline: auto; }
}

@media (max-width: 860px) {
  .nav__links {
    position: fixed;
    inset: 72px 0 auto 0;
    flex-direction: column;
    gap: 0;
    background: rgba(5, 13, 26, 0.98);
    backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--hairline);
    padding: 0.5rem var(--gut) 1.4rem;
    transform: translateY(-140%);
    transition: transform 0.4s var(--ease);
    font-size: 1rem;
  }
  .nav__links.is-open { transform: translateY(0); }
  .nav__links a { padding: 0.95rem 0; border-bottom: 1px solid var(--hairline); width: 100%; }
  .nav__links a::after { display: none; }
  .burger { display: block; }
  .nav__cta .btn { display: none; }
  .grid--3, .grid--2 { grid-template-columns: 1fr; }
  .prices { grid-template-columns: 1fr; max-width: 420px; margin-inline: auto; }
  .split { grid-template-columns: 1fr; }
  .bonus { grid-template-columns: 1fr; }
  .bonus__media { max-width: 320px; }
  body { padding-bottom: 78px; }
}

@media (max-width: 560px) {
  .grid--4 { grid-template-columns: 1fr; }
  .foot__grid { grid-template-columns: 1fr; }
  .chip--1, .chip--3 { display: none; }
  .tbl th, .tbl td { padding: 0.8rem 0.85rem; font-size: 0.86rem; }
  .btn { width: 100%; }
  .btn-row { flex-direction: column; }
}

/* ---------- 27. Motion + print ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .rise { opacity: 1; transform: none; }
  .stage__3d { transform: none !important; }
}

@media print {
  .field, .grain, .nav, .dock, .announce, .marquee { display: none !important; }
  body { background: #fff; color: #000; }
  .doc a { color: #000; }
}