/* ============================================================
   RUYI — Final Landing Page Styles
   Dark/cinematic, premium, Kickstarter pre-launch
   ============================================================ */

/* === DESIGN TOKENS === */
:root {
  --black:        #060605;
  --charcoal:     #111110;
  --graphite:     #1c1b19;
  --panel:        #242320;
  --panel-2:      #2e2b27;
  --dark-line:    rgba(255, 255, 255, 0.09);
  --muted:        #706a61;
  --subtle:       #9e9489;
  --light-muted:  #c9c0b2;
  --paper:        #f4f0e8;
  --soft:         #ede8de;
  --cream:        #faf7f2;
  --white:        #ffffff;
  --copper:       #b8703f;
  --bronze:       #c28a5b;
  --lavender-tint: #b9a8bf;
  color-scheme: light;
}

/* === RESET === */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 68px;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--black);
  color: var(--charcoal);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4, p { margin-top: 0; }

/* === TYPOGRAPHY === */
h1 {
  margin-bottom: 0;
  font-size: clamp(52px, 9.5vw, 108px);
  line-height: 0.92;
  font-weight: 900;
  letter-spacing: -0.025em;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(32px, 5vw, 58px);
  line-height: 0.97;
  font-weight: 860;
  letter-spacing: -0.015em;
}

h3 {
  margin-bottom: 8px;
  font-size: 18px;
  line-height: 1.2;
  font-weight: 820;
  letter-spacing: -0.01em;
}

p {
  margin-bottom: 14px;
  color: var(--muted);
}

p:last-child { margin-bottom: 0; }

.eyebrow {
  margin: 0 0 14px;
  color: var(--copper);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

/* === HEADER === */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 64px;
  padding: 0 20px;
  background: rgba(6, 6, 5, 0.85);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--white);
  backdrop-filter: blur(22px) saturate(180%);
  -webkit-backdrop-filter: blur(22px) saturate(180%);
}

.brand {
  font-size: 20px;
  font-weight: 950;
  letter-spacing: 0.03em;
  color: var(--white);
}

.desktop-nav {
  display: none;
  gap: 28px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: rgba(255, 255, 255, 0.48);
}

.desktop-nav a { transition: color 140ms; }
.desktop-nav a:hover { color: var(--white); }

.header-cta {
  display: inline-flex;
  align-items: center;
  height: 36px;
  padding: 0 16px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 7px;
  background: transparent;
  color: var(--white);
  font-size: 13px;
  font-weight: 820;
  transition: border-color 140ms, background 140ms;
}

.header-cta:hover {
  border-color: rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.06);
}

/* === BUTTONS === */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 26px;
  border-radius: 9px;
  font-size: 14px;
  font-weight: 860;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: transform 120ms, box-shadow 120ms, opacity 120ms;
}

.button:active { transform: scale(0.97); }

.button.primary {
  border: 1px solid var(--white);
  background: var(--white);
  color: var(--black);
  box-shadow: 0 4px 18px rgba(255, 255, 255, 0.14);
}

.button.primary:hover { box-shadow: 0 6px 28px rgba(255, 255, 255, 0.22); }

.button.secondary {
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: transparent;
  color: var(--white);
}

.button.secondary:hover { border-color: rgba(255, 255, 255, 0.55); }

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

/* === HERO === */
.hero-section {
  position: relative;
  display: flex;
  align-items: center;
  min-height: calc(100svh - 64px);
  padding: 72px 20px 56px;
  background:
    linear-gradient(90deg, rgba(0, 0, 0, 0.86) 0%, rgba(0, 0, 0, 0.54) 38%, rgba(0, 0, 0, 0.34) 72%, rgba(0, 0, 0, 0.78) 100%),
    linear-gradient(180deg, rgba(0, 0, 0, 0.14), rgba(0, 0, 0, 0.78)),
    url("./Landind%20page%20image/daily%20use/before%20training.png") center / cover no-repeat,
    #050504;
  color: var(--white);
  overflow: hidden;
}

/* Subtle engineering-grid overlay */
.hero-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.024) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.024) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: linear-gradient(90deg, black, transparent 76%);
  pointer-events: none;
}

.hero-copy {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 18px;
  width: min(100%, 720px);
  margin-inline: auto;
}

.poster-title {
  display: flex;
  flex-direction: column;
  gap: 12px;
  color: var(--white);
  font-family: Impact, Haettenschweiler, "Arial Narrow Bold", "Arial Black", sans-serif;
  font-size: clamp(54px, 8.6vw, 132px);
  font-weight: 950;
  line-height: 0.9;
  letter-spacing: 0;
  text-transform: uppercase;
}

.poster-title span { display: block; }

.poster-title .accent-line {
  color: #c7aa7e;
  font-style: italic;
}

.hero-lede {
  max-width: 560px;
  color: rgba(255, 255, 255, 0.74);
  font-size: 17px;
  line-height: 1.65;
  margin-bottom: 0;
}

.hero-note {
  color: rgba(255, 255, 255, 0.42);
  font-size: 13px;
  font-weight: 720;
  margin-bottom: 0;
}

.hero-media {
  position: relative;
  z-index: 1;
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  background: radial-gradient(ellipse at 50% 35%, #201d1a, #0a0908);
  box-shadow:
    0 48px 130px rgba(0, 0, 0, 0.65),
    0 0 0 1px rgba(255, 255, 255, 0.05) inset;
  overflow: hidden;
}

.product-hero {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 340px;
  padding: 40px 20px 84px;
}

.product-hero img {
  width: min(100%, 880px);
  max-height: 400px;
  object-fit: contain;
  filter: drop-shadow(0 32px 44px rgba(0, 0, 0, 0.58));
}

.product-hero figcaption {
  position: absolute;
  bottom: 16px;
  left: 16px;
  right: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.product-hero span {
  padding: 7px 12px;
  border: 1px solid rgba(184, 112, 63, 0.32);
  border-radius: 6px;
  background: rgba(6, 6, 5, 0.7);
  color: rgba(255, 255, 255, 0.88);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.03em;
  backdrop-filter: blur(14px);
}

.hero-product-showcase {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 78svh;
  padding: clamp(34px, 5.6vw, 76px) 20px;
  background:
    radial-gradient(ellipse at 76% 8%, rgba(184, 112, 63, 0.12) 0%, transparent 34%),
    linear-gradient(180deg, #030302 0%, #090807 100%);
  overflow: hidden;
}

.hero-product-showcase::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 58px 58px;
  mask-image: radial-gradient(ellipse 78% 70% at 50% 48%, black, transparent 82%);
  pointer-events: none;
}

.showcase-card {
  position: relative;
  z-index: 1;
  width: min(100%, 1240px);
  margin: 0;
  padding: clamp(18px, 2.8vw, 34px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(20, 18, 16, 0.86), rgba(8, 8, 7, 0.96));
  box-shadow:
    0 58px 140px rgba(0, 0, 0, 0.64),
    0 0 0 1px rgba(255, 255, 255, 0.035) inset;
  overflow: hidden;
}

.showcase-card img {
  width: 100%;
  height: auto;
  max-height: 62svh;
  object-fit: contain;
  object-position: center;
  border-radius: 14px;
  box-shadow: 0 34px 80px rgba(0, 0, 0, 0.46);
}

.showcase-card figcaption {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: clamp(18px, 2.4vw, 28px);
}

.showcase-card span {
  padding: 9px 15px;
  border: 1px solid rgba(184, 112, 63, 0.32);
  border-radius: 7px;
  background: rgba(5, 5, 4, 0.74);
  color: rgba(255, 255, 255, 0.9);
  font-size: 12px;
  font-weight: 860;
  letter-spacing: 0.02em;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.035) inset;
}

/* === SECTION SHARED === */
.section,
.video-section {
  padding: 96px 20px;
}

/* === VIDEO === */
.video-section {
  background:
    radial-gradient(ellipse at 18% 0%, rgba(184, 112, 63, 0.1) 0%, transparent 30%),
    linear-gradient(180deg, #0e0d0c 0%, #171614 100%);
  color: var(--white);
}

.video-section p { color: rgba(255, 255, 255, 0.52); }
.video-section h2 { color: var(--white); }

.video-heading {
  max-width: 580px;
  margin: 0 auto;
  text-align: center;
}

.video-heading p { font-size: 18px; font-weight: 620; }

.video-frame {
  position: relative;
  max-width: 1100px;
  width: 100%;
  margin: 42px auto 0;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 14px;
  background: #040403;
  overflow: hidden;
  box-shadow:
    0 48px 130px rgba(0, 0, 0, 0.55),
    0 0 0 1px rgba(255, 255, 255, 0.04) inset;
}

.video-frame video {
  width: 100%;
  height: auto;
  max-height: 72vh;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: #040403;
  display: block;
}

/* === SECTION HEADING === */
.section-heading { max-width: 720px; }

.center {
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.subhead {
  font-size: 21px;
  font-weight: 820;
  letter-spacing: -0.01em;
  color: inherit;
}

/* === PRODUCT TRANSFORMATION === */
.transform-section {
  background: #0b0a09;
  color: var(--white);
}

.transform-section h2 { color: var(--white); }
.transform-section .section-heading p:not(.eyebrow) { color: rgba(255, 255, 255, 0.52); }

.mode-grid {
  display: grid;
  gap: 16px;
  margin-top: 40px;
}

.media-card {
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 14px;
  overflow: hidden;
  background: #181614;
}

.product-card {
  background: radial-gradient(ellipse at 50% 30%, #211e1a, #0f0d0b);
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.38);
}

.product-card img {
  width: 100%;
  height: 300px;
  object-fit: contain;
  padding: 28px;
  background: transparent;
  filter: drop-shadow(0 20px 32px rgba(0, 0, 0, 0.55));
}

.media-card figcaption {
  padding: 16px 22px 22px;
  color: rgba(255, 255, 255, 0.82);
  font-weight: 840;
  font-size: 15px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

/* === WHY RUYI WORKS (FASCIA) === */
.science-section {
  background: var(--paper);
}

.science-grid {
  display: grid;
  gap: 16px;
  margin-top: 36px;
  max-width: 1220px;
  margin-left: auto;
  margin-right: auto;
}

.science-card {
  border: 1px solid rgba(0, 0, 0, 0.07);
  border-radius: 14px;
  overflow: hidden;
  background: var(--cream);
  box-shadow: 0 10px 36px rgba(28, 25, 20, 0.07);
}

.science-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  background: var(--soft);
}

.science-card > div { padding: 22px 22px 26px; }

.card-kicker {
  margin-bottom: 8px;
  color: var(--copper);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.science-card h3 { color: var(--charcoal); }
.science-card p { color: #5d5751; font-size: 15px; }

.science-note {
  max-width: 640px;
  margin: 26px auto 0;
  color: #7b7368;
  font-size: 13px;
  font-weight: 720;
}

/* === PROBLEM COMPARISON === */
.problem-section {
  background: #0c0c0a;
  color: var(--white);
}

.split-layout {
  display: grid;
  gap: 40px;
  align-items: center;
  max-width: 1220px;
  margin: 0 auto;
}

.problem-section .section-heading p:not(.eyebrow):not(.line-copy) {
  color: rgba(255, 255, 255, 0.52);
}

.problem-section h2 { color: var(--white); }

.line-copy {
  color: var(--white);
  font-size: clamp(22px, 4vw, 34px);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.015em;
  margin-bottom: 18px;
}

.image-frame {
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 14px;
  overflow: hidden;
  background: #181614;
  box-shadow: 0 32px 90px rgba(0, 0, 0, 0.4);
}

.image-frame img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}

.image-frame img.contain-transparent {
  object-fit: contain;
  background: transparent;
}

.product-frame img {
  object-fit: contain;
  padding: 12px;
  background: #181614;
}

/* === RUYI METHOD === */
.method-section {
  background:
    radial-gradient(ellipse at 50% 0%, rgba(184, 112, 63, 0.12) 0%, transparent 44%),
    linear-gradient(180deg, #121110 0%, #1b1917 100%);
  color: var(--white);
}

.method-section h2,
.method-section .subhead { color: var(--white); }
.method-section .section-heading p:not(.eyebrow):not(.subhead) {
  color: rgba(255, 255, 255, 0.5);
}

.step-grid {
  display: grid;
  gap: 16px;
  margin-top: 40px;
}

.step-card {
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 14px;
  overflow: hidden;
  background: #1e1c19;
  padding: 0 0 24px;
}

.step-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  background: #151412;
  display: block;
}

.step-card span {
  display: block;
  padding: 18px 20px 0;
  color: var(--bronze);
  font-size: 11px;
  font-weight: 920;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.step-card h3 {
  padding: 10px 20px 0;
  color: var(--white);
  font-size: 20px;
}

.step-card p {
  padding: 0 20px;
  color: rgba(255, 255, 255, 0.46);
  font-size: 14px;
  line-height: 1.6;
}

/* === DAILY USE === */
.day-section {
  background: #eee9df;
}

.use-grid {
  display: grid;
  gap: 16px;
  margin-top: 36px;
}

.use-card {
  border: 1px solid rgba(0, 0, 0, 0.07);
  border-radius: 14px;
  overflow: hidden;
  background: var(--cream);
  box-shadow: 0 10px 32px rgba(28, 25, 20, 0.06);
}

.use-card img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.use-card h3 {
  padding: 18px 18px 0;
  color: var(--charcoal);
}

.use-card p {
  padding: 6px 18px 20px;
  color: #6b6560;
  font-size: 14px;
}

/* === PRODUCT FEATURES === */
.features-section {
  background: var(--paper);
}

.feature-grid {
  display: grid;
  gap: 16px;
  margin-top: 36px;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.feature-card {
  border: 1px solid rgba(0, 0, 0, 0.07);
  border-radius: 14px;
  overflow: hidden;
  background: var(--cream);
  box-shadow: 0 8px 26px rgba(28, 25, 20, 0.05);
}

.feature-card img {
  width: 100%;
  height: 180px;
  object-fit: contain;
  padding: 18px;
  background: var(--soft);
}

.feature-card h3 {
  padding: 16px 16px 0;
  color: var(--charcoal);
  font-size: 15px;
}

.feature-card p {
  padding: 6px 16px 18px;
  color: #6b6560;
  font-size: 13px;
}

/* === WHO IT'S FOR === */
.audience-section {
  background: #101009;
  color: var(--white);
}

.audience-section h2 { color: var(--white); }
.audience-section .section-heading p:not(.eyebrow) { color: rgba(255, 255, 255, 0.5); }

.audience-grid {
  display: grid;
  gap: 16px;
  margin-top: 36px;
}

.audience-grid article {
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 14px;
  overflow: hidden;
  background: #1a1815;
}

.audience-grid img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  object-position: center;
}

.audience-grid img.audience-product-visible {
  height: 300px;
  object-fit: cover;
  padding: 0;
  background: transparent;
}

.audience-grid article:nth-child(1) img {
  object-position: center 20%;
}

.audience-grid article:nth-child(3) img {
  object-position: center 23%;
}

.audience-grid h3 {
  padding: 18px 18px 0;
  color: var(--white);
  font-size: 17px;
}

.audience-grid p {
  padding: 6px 18px 20px;
  color: rgba(255, 255, 255, 0.44);
  font-size: 14px;
}

/* === LAUNCH EDITION === */
.launch-section {
  background: var(--paper);
}

.color-grid {
  display: grid;
  gap: 16px;
  margin-top: 36px;
}

.color-card {
  position: relative;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 14px;
  overflow: hidden;
  padding: 14px;
  background: var(--cream);
}

.color-card img {
  width: 100%;
  height: 200px;
  object-fit: contain;
  border-radius: 10px;
  background: var(--soft);
}

.color-card h3 {
  margin-top: 14px;
  padding: 0 4px;
  color: var(--charcoal);
  font-size: 18px;
}

.color-card p {
  padding: 0 4px 4px;
  font-weight: 840;
  font-size: 13px;
}

.color-card.active {
  border-color: var(--charcoal);
  box-shadow:
    0 0 0 1.5px var(--charcoal) inset,
    0 20px 60px rgba(9, 9, 8, 0.1);
}

.color-card.active h3 { color: var(--black); }

.color-card.active p {
  color: var(--charcoal);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 900;
}

.color-card.concept { opacity: 0.58; }

.color-card.concept::after {
  content: "Future Concept";
  position: absolute;
  top: 20px;
  right: 20px;
  padding: 5px 9px;
  border: 1px solid rgba(0, 0, 0, 0.09);
  border-radius: 6px;
  background: rgba(244, 240, 232, 0.92);
  color: #7b7368;
  font-size: 11px;
  font-weight: 860;
  letter-spacing: 0.04em;
  pointer-events: none;
}

/* === FOUNDER SECTION === */
.founder-section {
  background:
    radial-gradient(ellipse at 90% 10%, rgba(184, 112, 63, 0.13) 0%, transparent 34%),
    #0d0c0b;
  color: var(--white);
}

.founder-section h2 { color: var(--white); line-height: 1.05; }

.founder-section p:not(.eyebrow) {
  color: rgba(255, 255, 255, 0.52);
  font-size: 16px;
  line-height: 1.7;
}

.portrait-frame {
  margin: 0;
  background: #181614;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 36px 96px rgba(0, 0, 0, 0.44);
}

.portrait-frame img {
  width: 100%;
  height: 460px;
  object-fit: cover;
  object-position: center 22%;
  display: block;
}

/* === FAQ === */
.faq-section {
  background: var(--paper);
}

.faq-list {
  display: grid;
  gap: 8px;
  max-width: 840px;
  margin: 36px auto 0;
}

.faq-list details {
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 12px;
  padding: 18px 20px;
  background: var(--cream);
  transition: background 160ms;
}

.faq-list details[open] { background: var(--white); }

.faq-list summary {
  cursor: pointer;
  font-weight: 860;
  font-size: 16px;
  color: var(--charcoal);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  user-select: none;
}

.faq-list summary::-webkit-details-marker { display: none; }

.faq-list summary::after {
  content: "+";
  flex-shrink: 0;
  font-size: 22px;
  font-weight: 300;
  line-height: 1;
  color: var(--copper);
  transition: transform 200ms ease;
}

.faq-list details[open] summary::after { transform: rotate(45deg); }

.faq-list p {
  margin-top: 14px;
  margin-bottom: 0;
  color: #5f5a53;
  font-size: 15px;
  line-height: 1.68;
}

/* === WAITLIST / FINAL CTA === */
.waitlist-section {
  background:
    radial-gradient(ellipse at 15% 0%, rgba(184, 112, 63, 0.1) 0%, transparent 32%),
    linear-gradient(180deg, #111110 0%, #1b1917 100%);
  color: var(--white);
}

.waitlist-section h2 { color: var(--white); }

.waitlist-section p:not(.eyebrow):not(.form-note) {
  color: rgba(255, 255, 255, 0.52);
  font-size: 17px;
  line-height: 1.65;
}

.waitlist-inner {
  display: grid;
  gap: 36px;
  max-width: 1100px;
  margin: 0 auto;
}

.waitlist-card {
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 14px;
  background: #1e1c19;
  overflow: hidden;
}

.waitlist-action {
  display: grid;
  gap: 16px;
}

.tally-embed {
  display: block;
  width: 100%;
  min-height: 280px;
  border: 0;
  border-radius: 10px;
  background: var(--white);
}

.form-note {
  margin-top: 12px;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.32);
  font-size: 13px;
}

.waitlist-benefits {
  padding: 22px 24px 24px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.035);
}

.waitlist-benefits h3 {
  margin-bottom: 8px;
  color: var(--white);
  font-size: 20px;
}

.waitlist-benefits p {
  margin-bottom: 16px;
  color: rgba(255, 255, 255, 0.5);
  font-size: 14px;
  line-height: 1.6;
}

.waitlist-benefits ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.waitlist-benefits li {
  position: relative;
  padding-left: 18px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
  line-height: 1.5;
}

.waitlist-benefits li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--bronze);
}

/* === FOOTER === */
.site-footer {
  padding: 32px 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: var(--black);
  color: var(--white);
}

.footer-inner {
  display: grid;
  gap: 14px;
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
}

.footer-inner .brand { color: var(--white); }

.site-footer p {
  margin: 0;
  color: rgba(255, 255, 255, 0.3);
  font-size: 13px;
}

.site-footer nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 18px;
  color: rgba(255, 255, 255, 0.38);
  font-size: 13px;
  font-weight: 720;
}

.site-footer nav a { transition: color 130ms; }
.site-footer nav a:hover { color: var(--white); }

/* ============================================================
   RESPONSIVE — TABLET (700px+)
   ============================================================ */
@media (min-width: 700px) {
  .desktop-nav { display: flex; }

  .mode-grid,
  .color-grid,
  .step-grid,
  .science-grid,
  .audience-grid,
  .use-grid,
  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  /* Wide feature card spans full width on 2-col grid */
  .feature-card.wide { grid-column: 1 / -1; }
  .feature-card.wide img { height: 220px; }

  .hero-section {
    background-position: 54% center;
  }

  .poster-title {
    gap: 10px;
    font-size: clamp(54px, 13vw, 92px);
    line-height: 0.92;
  }

  .hero-product-showcase,
  .hero-product-showcase img {
    min-height: auto;
  }

  .showcase-card img {
    object-fit: contain;
  }
}

/* ============================================================
   RESPONSIVE — DESKTOP (1020px+)
   ============================================================ */
@media (min-width: 1020px) {
  html { scroll-padding-top: 68px; }

  .site-header { padding: 0 44px; }

  /* Hero: poster-style copy over cinematic background */
  .hero-section {
    padding: 80px 44px 64px;
    min-height: calc(100svh - 68px);
  }

  .hero-copy {
    margin-left: 32%;
    margin-right: auto;
  }

  .poster-title {
    gap: 14px;
    font-size: clamp(92px, 7.8vw, 142px);
    line-height: 0.9;
  }

  .section, .video-section { padding: 120px 44px; }

  /* Video: contained width */
  .video-frame { width: 80%; }

  /* Product transformation: 2 large cards */
  .mode-grid {
    max-width: 1240px;
    margin-left: auto;
    margin-right: auto;
  }

  .product-card img { height: 460px; }

  /* Problem: half-half split background on desktop */
  .problem-section {
    background:
      linear-gradient(
        90deg,
        #0c0c0a 0%, #0c0c0a 50%,
        #ede8de 50%, #ede8de 100%
      );
  }

  /* Light side: image frame loses dark treatment */
  .problem-section .image-frame {
    border-color: rgba(0, 0, 0, 0.07);
    background: var(--soft);
    box-shadow: 0 20px 60px rgba(28, 25, 20, 0.1);
  }

  .problem-section .image-frame img { background: var(--soft); }

  .split-layout {
    grid-template-columns: 0.84fr 1.16fr;
    gap: 70px;
  }

  .split-layout.reverse {
    grid-template-columns: 1.05fr 0.95fr;
  }

  .image-frame img { height: 520px; }

  /* Step/method grid: 4 across */
  .step-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    max-width: 1240px;
    margin-left: auto;
    margin-right: auto;
  }

  /* Science/fascia: 3 across */
  .science-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }

  /* Daily use: 4 across */
  .use-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }

  /* Features: 5 across */
  .feature-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .feature-card.wide { grid-column: auto; }
  .feature-card.wide img { height: 180px; }

  /* Audience: 4 across */
  .audience-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }

  /* Launch: Matte Black wider */
  .color-grid {
    grid-template-columns: 1.3fr 0.85fr 0.85fr;
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
  }

  .color-card img { height: 250px; }

  /* Waitlist: side-by-side */
  .waitlist-inner {
    grid-template-columns: 1fr 1.1fr;
    align-items: center;
  }

  /* Portrait frame taller */
  .portrait-frame img { height: 580px; }

  /* Footer: horizontal layout */
  .footer-inner {
    grid-template-columns: auto 1fr auto;
    align-items: center;
    text-align: left;
  }

  .site-footer nav { justify-content: flex-end; }
}