:root {
  --bg: #0b1028;
  --surface: rgba(255, 255, 255, 0.9);
  --surface-strong: #ffffff;
  --ink: #181234;
  --muted: #4f4a73;
  --line: rgba(38, 30, 88, 0.22);
  --rose: #e64ea4;
  --amber: #f3bb3d;
  --aqua: #2379e7;
  --violet: #7145dd;
  --blue-deep: #12317f;
  --gold-soft: #ffd983;
  --violet-deep: #331a74;
  --pink-soft: #ff9ccd;
  --radius-lg: 22px;
  --radius-md: 14px;
  --shadow-soft: 0 20px 45px rgba(14, 9, 45, 0.22);
  --shadow-card: 0 14px 32px rgba(16, 10, 48, 0.2);
  --bg-image-full: url("assets/background/background.png");
  --bg-image-top: url("assets/background/background-top.png");
  --bg-image-middle: url("assets/background/background-middle.png");
  --bg-image-bottom: url("assets/background/background-bottom.png");
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 7%, rgba(35, 121, 231, 0.4) 0%, rgba(35, 121, 231, 0) 38%),
    radial-gradient(circle at 82% 16%, rgba(243, 187, 61, 0.33) 0%, rgba(243, 187, 61, 0) 34%),
    radial-gradient(circle at 20% 54%, rgba(230, 78, 164, 0.24) 0%, rgba(230, 78, 164, 0) 35%),
    radial-gradient(circle at 78% 70%, rgba(113, 69, 221, 0.3) 0%, rgba(113, 69, 221, 0) 33%),
    linear-gradient(165deg, #0b1028 0%, #2a2162 26%, #472f81 52%, #1a3d8f 73%, #0b1028 100%),
    var(--bg-image-full) center top / cover no-repeat fixed;
  font-family: "Manrope", "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.55;
}

img {
  display: block;
  max-width: 100%;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 10px;
  background: #fff;
  color: #141124;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  border: 1px solid rgba(20, 17, 36, 0.35);
  z-index: 100;
}

.skip-link:focus {
  left: 12px;
}

.shell {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

.narrow {
  width: min(760px, 100%);
}

.section-space {
  padding: clamp(3.3rem, 8vw, 6.4rem) 0;
}

main {
  position: relative;
  isolation: isolate;
}

main::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(180deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0) 25%),
    var(--bg-image-top),
    var(--bg-image-middle),
    var(--bg-image-bottom);
  background-repeat: no-repeat, no-repeat, repeat-y, no-repeat;
  background-position: center top, center top, center 46rem, center bottom;
  background-size: 100% 28rem, 100% auto, 100% auto, 100% auto;
  opacity: 0.65;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: linear-gradient(120deg, rgba(255, 255, 255, 0.97), rgba(255, 255, 255, 0.93));
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(35, 121, 231, 0.22);
  box-shadow: 0 10px 26px rgba(9, 7, 29, 0.16);
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 0;
}

.brand-lockup {
  display: grid;
  gap: 0.22rem;
}

.brand-mark {
  width: clamp(172px, 26vw, 250px);
  height: auto;
}

.brand-subtitle {
  color: #4f4a73;
  font-size: 0.77rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.site-nav a {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.25rem 0.2rem;
  border-radius: 999px;
  border-bottom: 1px solid transparent;
  transition: border-color 180ms ease, color 180ms ease, background-color 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  border-color: var(--violet);
  color: var(--ink);
  background: rgba(230, 78, 164, 0.12);
}

.hero {
  position: relative;
  overflow: clip;
}

.hero-aura {
  position: absolute;
  inset: 4% -12% auto;
  height: 520px;
  pointer-events: none;
  background:
    radial-gradient(closest-side, rgba(35, 121, 231, 0.45), rgba(35, 121, 231, 0) 72%),
    radial-gradient(closest-side, rgba(243, 187, 61, 0.35), rgba(243, 187, 61, 0) 76%),
    radial-gradient(closest-side, rgba(113, 69, 221, 0.45), rgba(113, 69, 221, 0) 70%),
    radial-gradient(closest-side, rgba(230, 78, 164, 0.35), rgba(230, 78, 164, 0) 74%);
  mix-blend-mode: screen;
  filter: blur(16px);
}

.hero-grid {
  position: relative;
  display: grid;
  gap: 2.2rem;
  align-items: center;
}

.eyebrow {
  margin: 0;
  font-size: 0.78rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--gold-soft);
  font-weight: 600;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: "Bodoni Moda", Georgia, serif;
  line-height: 1.03;
  letter-spacing: -0.02em;
}

h1 {
  margin-top: 0.65rem;
  font-size: clamp(2.1rem, 9vw, 4rem);
  max-width: 18ch;
}

h2 {
  font-size: clamp(1.9rem, 5vw, 3rem);
}

h3 {
  font-size: clamp(1.5rem, 4vw, 2rem);
}

.hero-copy h1,
.hero-copy .hero-subheadline {
  color: #fdf9ff;
  text-shadow: 0 8px 30px rgba(6, 4, 24, 0.45);
}

.hero-subheadline,
.lead {
  margin: 1.15rem 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 2.2vw, 1.17rem);
  max-width: 56ch;
}

.hero-cta-group {
  margin-top: 1.6rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.72rem;
}

.btn {
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-size: 0.93rem;
  font-weight: 700;
  padding: 0.72rem 1.2rem;
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(100deg, var(--aqua), var(--violet), var(--rose));
  color: #fff;
  box-shadow: 0 12px 28px rgba(24, 14, 67, 0.38);
}

.btn-secondary {
  border: 1px solid rgba(255, 255, 255, 0.55);
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(4px);
}

.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.media {
  position: absolute;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0.84));
  border: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: var(--shadow-card);
}

.media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transform-origin: center;
}

.media-bottle {
  position: relative;
  width: min(55vw, 270px);
  aspect-ratio: 2 / 3.9;
  left: auto;
  top: auto;
  transform: none;
  margin: 0 auto;
  padding: clamp(1.3rem, 3vw, 1.9rem);
  border-radius: 44px;
  border: 2px solid rgba(255, 255, 255, 0.82);
  background: linear-gradient(165deg, rgba(35, 121, 231, 0.1), rgba(243, 187, 61, 0.08), rgba(230, 78, 164, 0.1));
}

.media-bottle img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  transform: none;
  filter: drop-shadow(0 10px 20px rgba(16, 10, 48, 0.16));
}

.feature-list {
  margin: 1.2rem 0 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.6rem;
}

.bridge-note {
  margin: 0.95rem 0 0;
  color: #1f1850;
  font-weight: 500;
}

.section-maintenance {
  background:
    linear-gradient(145deg, rgba(35, 121, 231, 0.26), rgba(243, 187, 61, 0.2)),
    rgba(255, 255, 255, 0.78);
  border-top: 1px solid rgba(255, 255, 255, 0.36);
  border-bottom: 1px solid rgba(255, 255, 255, 0.36);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.28), inset 0 -1px 0 rgba(255, 255, 255, 0.18);
}

.drops-story {
  display: grid;
  gap: 1rem;
  align-items: center;
}

.drops-panel {
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.75);
  border-radius: var(--radius-lg);
  background: linear-gradient(150deg, rgba(35, 121, 231, 0.16), rgba(230, 78, 164, 0.14)), var(--surface);
  box-shadow: var(--shadow-card);
  padding: clamp(0.8rem, 2vw, 1.15rem);
}

.drops-panel img {
  width: min(100%, 520px);
  margin: 0 auto;
  height: auto;
}

.bottle-row-shell {
  margin-top: 1rem;
}

.drops-tone-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
}

.drops-tone-item {
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.74);
  border-radius: 14px;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0.82));
  box-shadow: var(--shadow-card);
  padding: 0.72rem 0.45rem 0.8rem;
  display: grid;
  justify-items: center;
  align-content: start;
  gap: 0.48rem;
}

.drops-tone-bottle {
  width: min(100%, 118px);
  height: auto;
}

.drops-tone-swatch {
  width: min(100%, 178px);
  height: auto;
}

.feature-list li,
.info-card li,
.steps li,
.before-use li {
  color: #252020;
}

.section-tinted {
  background:
    linear-gradient(145deg, rgba(113, 69, 221, 0.24), rgba(230, 78, 164, 0.2)),
    rgba(255, 255, 255, 0.74);
  border-top: 1px solid rgba(255, 255, 255, 0.34);
  border-bottom: 1px solid rgba(255, 255, 255, 0.34);
}

.maintenance-grid,
.comparison-grid {
  margin-top: 1.4rem;
  display: grid;
  gap: 1rem;
}

.usage-grid {
  margin-top: 1.4rem;
  display: grid;
  gap: 1rem;
}

.info-card {
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(255, 255, 255, 0.88)),
    var(--surface-strong);
  padding: 1.2rem 1.2rem 1.15rem;
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}

.info-card::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 5px;
  background: linear-gradient(90deg, var(--aqua), var(--amber), var(--violet), var(--rose));
}

.maintenance-grid .info-card:nth-child(1)::before,
.comparison-grid .info-card:nth-child(1)::before,
.usage-grid .info-card:nth-child(1)::before {
  background: linear-gradient(90deg, var(--aqua), #68b7ff);
}

.maintenance-grid .info-card:nth-child(2)::before,
.comparison-grid .info-card:nth-child(2)::before,
.usage-grid .info-card:nth-child(2)::before {
  background: linear-gradient(90deg, var(--amber), #ffe4a2);
}

.maintenance-grid .info-card:nth-child(3)::before,
.comparison-grid .info-card:nth-child(3)::before,
.usage-grid .info-card:nth-child(3)::before {
  background: linear-gradient(90deg, var(--violet), var(--rose));
}

.info-card ul {
  margin: 0.7rem 0 0;
  padding-left: 1rem;
  display: grid;
  gap: 0.52rem;
}

.info-card p {
  margin: 0.72rem 0 0;
  color: #252020;
}

.important-note {
  margin: 1rem 0 0;
  border-left: 3px solid;
  border-image: linear-gradient(180deg, var(--aqua), var(--amber), var(--violet), var(--rose)) 1;
  padding: 0.6rem 0 0.6rem 0.95rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.75);
  border-radius: 0 10px 10px 0;
}

.two-col {
  display: grid;
  gap: 1rem;
  align-items: start;
}

.how-to-apply-grid {
  margin-top: 1.4rem;
  display: grid;
  gap: 1rem;
}

.apply-step-card {
  border: 1px solid rgba(255, 255, 255, 0.78);
  border-radius: var(--radius-lg);
  background: linear-gradient(170deg, rgba(255, 255, 255, 0.97), rgba(255, 255, 255, 0.86));
  box-shadow: var(--shadow-card);
  padding: 0.68rem;
  display: grid;
  gap: 0.7rem;
  align-content: start;
}

.apply-step-media {
  margin: 0;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(113, 69, 221, 0.26);
  background: #f7f5fa;
  aspect-ratio: 1 / 1;
}

.apply-step-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.apply-step-card p {
  margin: 0;
  color: #2a2550;
  font-weight: 600;
}

.how-to-callouts {
  margin-top: 1rem;
  display: grid;
  gap: 1rem;
}

.steps {
  margin: 1rem 0 0;
  padding-left: 1.15rem;
  display: grid;
  gap: 0.54rem;
}

.use-callout {
  margin: 1rem 0 0;
  padding: 0.7rem 0 0.7rem 0.95rem;
  border-left: 3px solid;
  border-image: linear-gradient(180deg, var(--amber), var(--rose), var(--violet)) 1;
  background: rgba(255, 255, 255, 0.8);
  font-weight: 600;
  border-radius: 0 10px 10px 0;
}

.before-use {
  border: 1px solid rgba(255, 255, 255, 0.76);
  border-radius: var(--radius-lg);
  background: linear-gradient(150deg, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.84));
  box-shadow: var(--shadow-soft);
  padding: 1.15rem;
}

.before-use ul {
  margin: 0.7rem 0 0;
  padding-left: 1rem;
  display: grid;
  gap: 0.5rem;
}

details {
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 12px;
  padding: 0.78rem 0.95rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(255, 255, 255, 0.88));
  box-shadow: var(--shadow-card);
}

details + details {
  margin-top: 0.65rem;
}

summary {
  cursor: pointer;
  font-weight: 650;
  list-style: none;
  color: #23195a;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  content: "+";
  float: right;
  color: var(--violet);
}

details[open] summary::after {
  content: "−";
}

details p {
  margin: 0.64rem 0 0;
  color: #3f3863;
}

.site-footer {
  border-top: 1px solid rgba(255, 217, 131, 0.42);
  background:
    radial-gradient(circle at 12% 22%, rgba(35, 121, 231, 0.34), rgba(35, 121, 231, 0) 36%),
    radial-gradient(circle at 78% 60%, rgba(230, 78, 164, 0.32), rgba(230, 78, 164, 0) 35%),
    linear-gradient(160deg, rgba(10, 15, 42, 0.95), rgba(51, 26, 116, 0.92));
  padding: 1.9rem 0 2.4rem;
  color: rgba(255, 248, 229, 0.95);
}

.footer-grid {
  display: grid;
  gap: 1rem;
}

.footer-grid p {
  margin: 0.1rem 0;
}

.disclaimer {
  max-width: 62ch;
  color: rgba(255, 241, 212, 0.86);
  font-size: 0.94rem;
}

.reveal,
.reveal-delay {
  opacity: 0;
  transform: translateY(18px);
  animation: rise 700ms ease-out forwards;
}

.reveal-delay {
  animation-duration: 900ms;
  animation-delay: 120ms;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(22px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 760px) {
  main::before {
    background-position: center top, center top, center 40rem, center bottom;
  }

  .hero-grid {
    grid-template-columns: 1.05fr 1fr;
    gap: 2.3rem;
  }

  .drops-story {
    grid-template-columns: 1.08fr 0.92fr;
    gap: 1.4rem;
  }

  .drops-tone-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .comparison-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .maintenance-grid,
  .usage-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .how-to-apply-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .how-to-callouts {
    grid-template-columns: 1.15fr 1fr;
    align-items: start;
  }

  .two-col {
    grid-template-columns: 1.2fr 0.92fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1.15fr;
    align-items: end;
  }
}

@media (max-width: 759px) {
  body {
    background-attachment: scroll, scroll, scroll, scroll, scroll, scroll;
    background-size: auto, auto, auto, auto, auto, cover;
  }

  main::before {
    background-position: center top, center top, center 30rem, center bottom;
    background-size: 100% 22rem, 185% auto, 175% auto, 210% auto;
    opacity: 0.54;
  }

  .site-nav {
    display: none;
  }

  .hero-visual {
    min-height: 500px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal,
  .reveal-delay,
  .btn {
    animation: none;
    transition: none;
  }

  .reveal,
  .reveal-delay {
    opacity: 1;
    transform: none;
  }
}