:root {
  --bg: #020202;
  --panel: #080808;
  --panel-soft: #0d0d0f;
  --line: rgba(255, 255, 255, 0.16);
  --line-bright: rgba(255, 255, 255, 0.42);
  --text: #f5f5f2;
  --muted: rgba(245, 245, 242, 0.66);
  --soft: rgba(245, 245, 242, 0.42);
  --blue: #1d45ff;
  --green: #8cff28;
  --yellow: #fff23d;
  --red: #ff1f1f;
  --violet: #b226ff;
  --cyan: #22d9f2;
  --white-glow: rgba(255, 255, 255, 0.74);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 50% 0%, rgba(255, 255, 255, 0.06), transparent 24rem),
    radial-gradient(circle at 12% 28%, rgba(34, 217, 242, 0.08), transparent 20rem),
    linear-gradient(180deg, #000, var(--bg) 46%, #050505);
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-weight: 300;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  opacity: 0.18;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.8), transparent 70%);
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px clamp(20px, 5vw, 72px);
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.76), rgba(0, 0, 0, 0));
  backdrop-filter: blur(10px);
}

.brand-mark,
.footer-logo,
.lid-logo {
  font-weight: 300;
  letter-spacing: 0.42em;
}

.brand-mark {
  font-size: 15px;
}

.main-nav,
.footer nav {
  display: flex;
  gap: clamp(14px, 2.4vw, 34px);
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.main-nav a,
.footer a {
  transition: color 180ms ease;
}

.main-nav a:hover,
.footer a:hover {
  color: var(--text);
}

.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(320px, 0.78fr) minmax(520px, 1.22fr);
  align-items: center;
  gap: clamp(28px, 5vw, 78px);
  padding: 118px clamp(20px, 5vw, 72px) 54px;
  overflow: hidden;
}

.hero-copy {
  max-width: 660px;
}

.eyebrow,
.section-label {
  margin: 0 0 18px;
  color: var(--soft);
  font-size: 11px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
}

.logo-title {
  margin: 0;
  font-size: clamp(58px, 8.4vw, 116px);
  line-height: 0.86;
  font-weight: 300;
  letter-spacing: 0.2em;
}

.hero-kicker {
  margin: 26px 0 0;
  max-width: 520px;
  color: var(--text);
  font-size: clamp(15px, 2.2vw, 28px);
  line-height: 1.35;
  letter-spacing: 0.22em;
}

.hero-subtitle {
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(19px, 2.2vw, 28px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 38px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  transition:
    border-color 180ms ease,
    background 180ms ease,
    transform 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  border-color: rgba(255, 255, 255, 0.58);
  background: rgba(255, 255, 255, 0.08);
}

.button-secondary {
  color: var(--muted);
}

.product-visual {
  position: relative;
  min-height: 700px;
  perspective: 1200px;
}

.box-lid,
.box-base {
  position: absolute;
  left: 50%;
  width: min(860px, 100%);
  border: 1px solid rgba(255, 255, 255, 0.18);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.055), transparent 24%),
    radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.055), transparent 60%),
    #030303;
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.045),
    inset 0 0 80px rgba(255, 255, 255, 0.035),
    0 34px 80px rgba(0, 0, 0, 0.72);
}

.box-lid {
  top: 0;
  height: 210px;
  transform: translateX(-50%) rotateX(-58deg);
  transform-origin: bottom center;
  display: grid;
  place-items: center;
  text-align: center;
}

.box-lid::before,
.box-base::before {
  position: absolute;
  inset: 8px;
  pointer-events: none;
  border: 1px solid rgba(255, 255, 255, 0.09);
  content: "";
}

.lid-logo {
  font-size: clamp(28px, 4vw, 54px);
}

.lid-text {
  margin-top: 18px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
  letter-spacing: 0.2em;
}

.box-base {
  top: 176px;
  height: 510px;
  transform: translateX(-50%) rotateX(13deg);
  transform-origin: top center;
}

.box-base::after {
  position: absolute;
  inset: 0;
  pointer-events: none;
  content: "";
  background-image: radial-gradient(rgba(255, 255, 255, 0.08) 0.7px, transparent 0.8px);
  background-size: 9px 9px;
  opacity: 0.08;
}

.pack-patch,
.orbit-patch {
  position: absolute;
  display: grid;
  justify-items: center;
  gap: 12px;
  color: var(--text);
  font-size: 13px;
  letter-spacing: 0.13em;
  text-align: center;
  text-transform: uppercase;
}

.pack-patch::before,
.patch-disc,
.orbit-patch::before {
  width: 78px;
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 28%, rgba(255, 255, 255, 0.12), transparent 18%),
    radial-gradient(circle at center, #0b0b0c 0 48%, #050505 49% 100%);
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow:
    inset 0 0 0 5px rgba(255, 255, 255, 0.025),
    inset 0 0 18px rgba(255, 255, 255, 0.06),
    0 16px 22px rgba(0, 0, 0, 0.64);
  content: "";
}

.pack-patch .symbol-img,
.orbit-patch .symbol-img {
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 50px;
  object-fit: contain;
  mix-blend-mode: screen;
}

.pack-patch b,
.orbit-patch b {
  font-weight: 400;
}

.pos-calm { top: 46px; left: 28%; }
.pos-recharge { top: 46px; right: 24%; }
.pos-open { top: 165px; left: 18%; }
.pos-focus { top: 165px; right: 17%; }
.pos-thinking { top: 198px; left: 26%; }
.pos-private { top: 198px; right: 24%; }
.pos-myself { top: 162px; left: 50%; transform: translateX(-50%); }

.connector {
  position: absolute;
  z-index: 0;
  height: 1px;
  width: 92px;
  background: rgba(255, 255, 255, 0.72);
  transform-origin: center;
}

.c1 { top: 190px; left: 35%; }
.c2 { top: 190px; right: 35%; }
.c3 { top: 124px; left: 39%; transform: rotate(47deg); }
.c4 { top: 124px; right: 39%; transform: rotate(-47deg); }
.c5 { top: 246px; left: 39%; transform: rotate(-47deg); }
.c6 { top: 246px; right: 39%; transform: rotate(47deg); }

.mini-card {
  position: absolute;
  bottom: 24px;
  width: 34%;
  min-height: 118px;
  padding: 22px 20px 16px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(0, 0, 0, 0.38);
  text-align: center;
}

.guide-card { left: 9%; }
.use-card { right: 9%; }

.mini-card p {
  margin: 0 0 10px;
  font-size: 15px;
  letter-spacing: 0.16em;
}

.mini-card span {
  color: var(--muted);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.13em;
}

.mini-card strong {
  display: block;
  margin-top: 20px;
  font-weight: 300;
  letter-spacing: 0.35em;
}

.guide-icons {
  display: flex;
  justify-content: center;
  gap: 13px;
  margin-top: 18px;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  box-shadow: 0 0 12px currentColor;
}

.use-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.section {
  padding: clamp(82px, 11vw, 148px) clamp(20px, 5vw, 72px);
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.85fr) minmax(280px, 0.65fr);
  gap: clamp(26px, 8vw, 110px);
  align-items: end;
}

h2 {
  margin: 0;
  font-size: clamp(34px, 5vw, 76px);
  font-weight: 300;
  line-height: 1.03;
}

.about p,
.starter-copy p,
.steps p,
.patch-card p {
  color: var(--muted);
  line-height: 1.7;
}

.about p,
.starter-copy p {
  margin: 0;
  font-size: clamp(18px, 2vw, 25px);
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 44px;
}

.patch-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.patch-card {
  min-height: 330px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 34px 22px;
  border: 1px solid rgba(255, 255, 255, 0.11);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.015)),
    #050505;
  text-align: center;
}

.patch-card.featured {
  border-color: rgba(255, 255, 255, 0.28);
}

.patch-disc {
  position: relative;
  width: 132px;
  margin-bottom: 28px;
}

.patch-disc .symbol-img {
  position: absolute;
  inset: 22px;
  margin: auto;
  width: calc(100% - 44px);
  height: calc(100% - 44px);
  object-fit: contain;
  mix-blend-mode: screen;
}

.patch-card h3 {
  margin: 0 0 12px;
  font-size: 18px;
  font-weight: 400;
  letter-spacing: 0.2em;
}

.patch-card p {
  min-height: 48px;
  margin: 0;
  font-size: 14px;
}

.starter {
  display: grid;
  grid-template-columns: minmax(280px, 0.54fr) minmax(380px, 1fr);
  gap: clamp(32px, 6vw, 78px);
  align-items: center;
}

.starter-stage {
  min-height: 560px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background:
    radial-gradient(circle at center, rgba(255, 255, 255, 0.08), transparent 34%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.01)),
    #030303;
  box-shadow: inset 0 0 90px rgba(255, 255, 255, 0.04);
}

.pack-orbit {
  position: relative;
  width: min(520px, 82vw);
  aspect-ratio: 1;
}

.orbit-line {
  position: absolute;
  inset: 50% auto auto 50%;
  background: rgba(255, 255, 255, 0.28);
  transform: translate(-50%, -50%);
}

.orbit-line.horizontal {
  width: 78%;
  height: 1px;
}

.orbit-line.vertical {
  width: 1px;
  height: 78%;
}

.orbit-patch {
  transform: translate(-50%, -50%);
}

.orbit-patch.center { top: 50%; left: 50%; }
.orbit-patch.top { top: 14%; left: 50%; }
.orbit-patch.right { top: 50%; left: 86%; }
.orbit-patch.bottom { top: 86%; left: 50%; }
.orbit-patch.left { top: 50%; left: 14%; }

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.14);
}

.steps article {
  min-height: 260px;
  padding: 34px;
  background: #050505;
}

.steps span {
  display: block;
  margin-bottom: 54px;
  color: var(--soft);
  font-size: 13px;
  letter-spacing: 0.22em;
}

.steps h3 {
  margin: 0 0 14px;
  font-size: 22px;
  font-weight: 400;
}

.philosophy {
  padding: clamp(96px, 14vw, 180px) clamp(20px, 5vw, 72px);
  text-align: center;
  background:
    radial-gradient(circle at 50% 50%, rgba(178, 38, 255, 0.1), transparent 30rem),
    #010101;
}

.philosophy h2 {
  max-width: 1120px;
  margin: 0 auto;
  font-size: clamp(34px, 6vw, 86px);
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 28px;
  padding: 44px clamp(20px, 5vw, 72px) 56px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-logo {
  display: inline-block;
  margin-bottom: 14px;
  font-size: 22px;
}

.footer p {
  margin: 0;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.18em;
}

.symbol {
  position: relative;
  display: block;
  width: 58px;
  height: 58px;
}

.waves::before,
.waves::after {
  position: absolute;
  left: 5px;
  width: 48px;
  height: 15px;
  border-top: 6px solid var(--blue);
  border-radius: 50%;
  filter: drop-shadow(0 0 8px var(--blue));
  content: "";
}

.waves::before { top: 16px; }
.waves::after { top: 31px; }

.open-ring {
  border: 6px solid var(--green);
  border-top-color: transparent;
  border-radius: 50%;
  filter: drop-shadow(0 0 9px var(--green));
}

.lines::before {
  display: block;
  width: 54px;
  height: 6px;
  margin-top: 14px;
  border-radius: 999px;
  background: var(--yellow);
  box-shadow:
    0 16px 0 var(--yellow),
    0 32px 0 var(--yellow),
    0 0 12px var(--yellow);
  content: "";
}

.ring {
  border: 6px solid var(--red);
  border-radius: 50%;
  filter: drop-shadow(0 0 9px var(--red));
}

.cloud::before {
  position: absolute;
  left: 4px;
  top: 25px;
  width: 50px;
  height: 20px;
  border: 6px solid var(--violet);
  border-top: 0;
  border-radius: 0 0 24px 24px;
  filter: drop-shadow(0 0 9px var(--violet));
  content: "";
}

.cloud::after {
  position: absolute;
  left: 16px;
  top: 10px;
  width: 30px;
  height: 30px;
  border: 6px solid var(--violet);
  border-bottom: 0;
  border-radius: 50% 50% 0 0;
  filter: drop-shadow(0 0 9px var(--violet));
  content: "";
}

.brackets::before,
.brackets::after {
  position: absolute;
  top: 7px;
  width: 18px;
  height: 45px;
  border: 6px solid var(--cyan);
  filter: drop-shadow(0 0 9px var(--cyan));
  content: "";
}

.brackets::before {
  left: 8px;
  border-right: 0;
  border-radius: 28px 0 0 28px;
}

.brackets::after {
  right: 8px;
  border-left: 0;
  border-radius: 0 28px 28px 0;
}

.myself-mark {
  border: 5px solid var(--text);
  border-radius: 50%;
  filter: drop-shadow(0 0 8px var(--white-glow));
}

.myself-mark::after {
  position: absolute;
  left: 26px;
  top: -8px;
  width: 5px;
  height: 74px;
  border-radius: 999px;
  background: var(--text);
  box-shadow: 0 0 8px var(--white-glow);
  transform: rotate(45deg);
  content: "";
}

.calm { color: var(--blue); }
.open { color: var(--green); }
.focus { color: var(--yellow); }
.private { color: var(--red); }
.thinking { color: var(--violet); }
.recharge { color: var(--cyan); }
.myself { color: var(--text); }

@media (max-width: 1080px) {
  .hero,
  .starter {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    padding-top: 36px;
  }

  .hero-visual {
    min-height: 540px;
  }

  .patch-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .site-header {
    position: absolute;
    align-items: flex-start;
    gap: 18px;
  }

  .main-nav {
    display: none;
  }

  .hero {
    min-height: auto;
    padding-top: 102px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .product-visual {
    min-height: 670px;
  }

  .box-lid,
  .box-base {
    width: 100%;
  }

  .box-lid {
    height: 164px;
  }

  .box-base {
    top: 138px;
    height: 510px;
    transform: translateX(-50%) rotateX(7deg);
  }

  .connector {
    display: none;
  }

  .pack-patch::before,
  .orbit-patch::before {
    width: 64px;
  }

  .pack-patch {
    font-size: 10px;
    gap: 8px;
  }

  .pack-patch .symbol-img,
  .orbit-patch .symbol-img {
    top: 13px;
    width: 42px;
    height: 42px;
  }

  .pos-calm { top: 54px; left: 20%; }
  .pos-recharge { top: 54px; right: 14%; }
  .pos-open { top: 150px; left: 14%; }
  .pos-focus { top: 150px; right: 12%; }
  .pos-thinking { top: 244px; left: 20%; }
  .pos-private { top: 244px; right: 14%; }
  .pos-myself { top: 150px; }

  .mini-card {
    width: 42%;
    min-height: 136px;
    padding: 18px 10px;
  }

  .guide-card { left: 5%; }
  .use-card { right: 5%; }

  .mini-card p {
    font-size: 11px;
  }

  .guide-icons {
    gap: 6px;
  }

  .dot {
    width: 8px;
    height: 8px;
  }

  .use-steps {
    gap: 3px;
  }

  .mini-card span {
    font-size: 8px;
  }

  .about-grid,
  .section-heading {
    display: block;
  }

  .about p {
    margin-top: 24px;
  }

  .patch-grid,
  .steps {
    grid-template-columns: 1fr;
  }

  .patch-card {
    min-height: 278px;
  }

  .starter-stage {
    min-height: 430px;
  }

  .pack-orbit {
    width: min(330px, 86vw);
  }

  .orbit-patch {
    font-size: 9px;
  }

  .footer {
    display: block;
  }

  .footer nav {
    flex-wrap: wrap;
    margin-top: 24px;
  }
}

@media (max-width: 420px) {
  .logo-title {
    font-size: 52px;
  }

  .hero-kicker {
    font-size: 14px;
  }

  .mini-card strong {
    letter-spacing: 0.2em;
  }
}