/* einerda marketing site — Apple-inspired */

:root {
  --bg: #ffffff;
  --bg-dark: #0a0a0a;
  --bg-soft: #f5f5f7;
  --ink: #1d1d1f;
  --ink-soft: #515154;
  --ink-mute: #86868b;
  --line: rgba(0, 0, 0, 0.08);
  --line-dark: rgba(255, 255, 255, 0.12);
  --accent: #2bb673;
  --accent-deep: #1f9560;
  --accent-light: #4cd498;
  --accent-soft: rgba(43, 182, 115, 0.12);
  --shadow-soft: 0 1px 2px rgba(0,0,0,0.06), 0 8px 24px rgba(0,0,0,0.06);
  --shadow-strong: 0 30px 80px rgba(0,0,0,0.18);
  --radius: 18px;
  --radius-sm: 12px;
  --maxw: 1180px;
  --maxw-narrow: 820px;

  --f-display:
    -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter",
    "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --f-text:
    -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter",
    "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
html, body { margin: 0; padding: 0; }

body {
  font-family: var(--f-text);
  color: var(--ink); background: var(--bg);
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  font-size: 17px; line-height: 1.5; letter-spacing: -0.005em;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.container.narrow { max-width: var(--maxw-narrow); }
.center { text-align: center; }

.dn-mobile { display: inline; }
@media (max-width: 640px) { .dn-mobile { display: none; } }

/* ───────────── nav ───────────── */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  background: rgba(255,255,255,0.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--line);
  transition: background .25s ease, border-color .25s ease;
}
.nav.scrolled { background: rgba(255,255,255,0.92); }
.nav-inner {
  max-width: var(--maxw); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--f-display); font-weight: 600; font-size: 19px;
  letter-spacing: -0.01em; color: var(--ink);
}
.brand-mark {
  width: 22px; height: 22px; border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, var(--accent-light), var(--accent) 65%, var(--accent-deep));
  box-shadow: 0 0 0 4px var(--accent-soft);
}
.brand-word { letter-spacing: -0.02em; }
.brand.small .brand-mark { width: 18px; height: 18px; }
.brand.small { font-size: 17px; }

.nav-links { display: flex; gap: 28px; align-items: center; }
.nav-links a {
  font-size: 14px; color: var(--ink-soft); font-weight: 500;
  transition: color .15s ease;
}
.nav-links a:hover { color: var(--ink); }
.nav-cta {
  background: var(--accent); color: #fff !important;
  padding: 8px 16px; border-radius: 999px;
  font-weight: 600 !important;
}
.nav-cta:hover { background: var(--accent-deep); }

.lang-toggle {
  display: inline-flex; align-items: center; gap: 4px;
  background: transparent; border: 1px solid var(--line);
  border-radius: 999px; padding: 5px 10px;
  font: inherit; font-size: 12px; font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--ink-mute);
}
.lang-toggle button {
  background: transparent; border: 0; padding: 2px 6px;
  font: inherit; font-size: 12px; font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--ink-mute); cursor: pointer; border-radius: 6px;
  transition: color .15s ease, background .15s ease;
}
.lang-toggle button:hover { color: var(--ink); }
.lang-toggle button.active { color: var(--ink); background: var(--bg-soft); }
.lang-toggle .sep { color: var(--ink-mute); opacity: 0.4; user-select: none; }

/* ───────── hamburger + mobile drawer ───────── */
.nav-burger {
  display: none;
  position: relative;
  background: transparent; border: 0; padding: 8px;
  cursor: pointer;
  width: 40px; height: 40px;
  border-radius: 999px;
  transition: background .15s ease;
}
.nav-burger:hover { background: var(--bg-soft); }
.nav-burger span {
  display: block;
  width: 20px; height: 2px;
  background: var(--ink);
  margin: 4px auto;
  border-radius: 2px;
  transition: transform .25s ease, opacity .25s ease;
}
.nav-burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.mobile-drawer {
  position: absolute;
  top: 100%; left: 0; right: 0;
  background: #ffffff;
  border-bottom: 1px solid var(--line);
  box-shadow: 0 20px 40px rgba(0,0,0,0.08);
  padding: 12px 24px 20px;
  display: flex; flex-direction: column; gap: 4px;
}
.mobile-drawer[hidden] { display: none; }
.drawer-link {
  display: block;
  padding: 14px 4px;
  font-size: 17px; font-weight: 500;
  color: var(--ink);
  border-bottom: 1px solid var(--line);
}
.drawer-link:last-of-type { border-bottom: 0; }
.drawer-cta {
  margin-top: 12px;
  background: var(--accent); color: #fff !important;
  border-radius: 999px;
  text-align: center;
  border-bottom: 0 !important;
  font-weight: 600;
  padding: 14px 22px;
}
.drawer-lang {
  display: inline-flex; gap: 4px; align-items: center;
  margin-top: 16px;
  padding: 4px;
  background: var(--bg-soft); border-radius: 999px;
  align-self: flex-start;
}
.drawer-lang button {
  background: transparent; border: 0; padding: 6px 12px;
  font: inherit; font-size: 13px; font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--ink-mute); cursor: pointer; border-radius: 999px;
  transition: color .15s ease, background .15s ease;
}
.drawer-lang button.active { color: var(--ink); background: #fff; box-shadow: 0 1px 2px rgba(0,0,0,0.08); }

@media (max-width: 760px) {
  .nav-inner { padding: 12px 20px; }
  .nav-links { display: none; }
  .nav-burger { display: block; }
}
@media (min-width: 761px) {
  .mobile-drawer { display: none !important; }
}

/* ───────────── hero ───────────── */
.hero {
  position: relative;
  padding: 140px 24px 64px;
  text-align: center;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(43,182,115,0.10), transparent 60%),
    linear-gradient(180deg, #ffffff 0%, #fbfbfb 100%);
  overflow: hidden;
}
@media (max-width: 640px) {
  .hero { padding: 96px 20px 40px; }
}
.hero-eyebrow {
  display: inline-block;
  padding: 6px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 13px; color: var(--ink-soft); font-weight: 500;
  background: rgba(255,255,255,0.7);
  margin-bottom: 24px;
}
@media (max-width: 640px) {
  .hero-eyebrow { font-size: 12px; padding: 5px 12px; margin-bottom: 16px; }
}
.hero-title {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: clamp(48px, 8vw, 96px);
  line-height: 1.02;
  letter-spacing: -0.035em;
  margin: 0 0 24px;
  background: linear-gradient(180deg, #0a0a0a 0%, #2c2c2e 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  font-size: clamp(17px, 2vw, 22px);
  color: var(--ink-soft);
  max-width: 660px; margin: 0 auto 28px;
  line-height: 1.4;
}
.hero-actions {
  display: flex; gap: 12px; justify-content: center; flex-wrap: wrap;
  margin-bottom: 48px;
}
.hero-foot { margin-top: 32px; color: var(--ink-mute); font-size: 14px; letter-spacing: 0.04em; }

@media (max-width: 640px) {
  .hero-title { letter-spacing: -0.04em; }
  .hero-sub { margin-bottom: 20px; }
  .hero-actions { gap: 10px; margin-bottom: 32px; }
  .hero-foot { margin-top: 20px; font-size: 12px; }
}

/* hero device — rendered product image */
.hero-stage {
  position: relative;
  width: 100%; max-width: 560px; height: clamp(220px, 36vw, 360px);
  margin: 0 auto;
  display: flex; align-items: center; justify-content: center;
  isolation: isolate;
}
.hero-pulse {
  position: absolute; inset: 50% auto auto 50%;
  width: clamp(280px, 50vw, 420px);
  height: clamp(280px, 50vw, 420px);
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(43,182,115,0.22), rgba(43,182,115,0) 65%);
  animation: pulse 4s ease-in-out infinite;
  z-index: 0;
}
@keyframes pulse {
  0%, 100% { opacity: 0.5; }
  50%      { opacity: 1; }
}
.hero-device {
  position: relative;
  z-index: 1;
  width: clamp(220px, 32vw, 320px);
  height: clamp(220px, 32vw, 320px);
  /* scroll-driven shrink — supported browsers only, no-op elsewhere */
  animation: device-scroll linear both;
  animation-timeline: view();
  animation-range: cover 0% cover 50%;
}

/* ───────────── pure-CSS device disc ─────────────
   Matte anthracite puck, 1:1 round, small green LED breathing softly.
   Replaces the old PNG renderings — sharp at any DPR, scales with the
   layout, and never shows a "flat edge". */
.device-disc {
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  background:
    /* status LED: solid 4-px dot, slightly below centre */
    radial-gradient(circle at 50% 62%, #2bb673 0 4px, transparent 4.5px),
    /* upper-left highlight, gives the surface a soft sheen */
    radial-gradient(circle at 28% 22%, rgba(255,255,255,0.10) 0%, rgba(255,255,255,0) 55%),
    /* base disc — matte anthracite */
    radial-gradient(circle at 50% 45%, #2c2c2e 0%, #1c1c1e 60%, #0a0a0c 100%);
  box-shadow:
    0 32px 50px rgba(0,0,0,0.30),
    0 8px 14px rgba(0,0,0,0.18),
    inset 0 -2px 6px rgba(0,0,0,0.55),
    inset 0 2px 4px rgba(255,255,255,0.04);
  position: relative;
}
/* LED breath halo — sits on top of the LED dot from the gradient */
.device-disc::after {
  content: '';
  position: absolute;
  left: 50%; top: 62%;
  width: 22px; height: 22px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(43,182,115,0.45) 0%, rgba(43,182,115,0) 70%);
  animation: led-breath 3.5s ease-in-out infinite;
  pointer-events: none;
}
@keyframes led-breath {
  0%, 100% { opacity: 0.4; transform: translate(-50%, -50%) scale(0.9); }
  50%      { opacity: 1;   transform: translate(-50%, -50%) scale(1.1); }
}
@keyframes device-scroll {
  from { transform: scale(1) translateY(0); }
  to   { transform: scale(0.88) translateY(-16px); }
}

/* ───────────── ticker ───────────── */
.ticker {
  background: var(--bg-soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
  padding: 18px 0;
}
.ticker-track {
  display: inline-flex; white-space: nowrap;
  font-size: 14px; color: var(--ink-soft);
  animation: tick 36s linear infinite;
  letter-spacing: 0.02em;
  gap: 18px; padding-left: 18px;
}
.ticker-track .ti { color: var(--accent); }
@keyframes tick { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* ───────────── sections ───────────── */
.section { padding: 96px 24px; }
@media (max-width: 760px) { .section { padding: 64px 20px; } }
@media (max-width: 480px) { .section { padding: 56px 18px; } }
.section.dark { background: var(--bg-dark); color: #f5f5f7; }
.section.dark .kicker { color: var(--accent-light); }
.section.dark .display { color: #f5f5f7; }
.section.dark .lede   { color: rgba(245,245,247,0.7); }
.section.dark .accent { color: var(--accent-light); }

.kicker {
  font-size: 14px; font-weight: 500;
  text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--accent);
  margin: 0 0 18px;
}
.display {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: clamp(36px, 5.4vw, 68px);
  line-height: 1.04;
  letter-spacing: -0.03em;
  margin: 0 0 24px;
  color: var(--ink);
}
.display.giant { font-size: clamp(64px, 12vw, 144px); }
.display.light { color: var(--ink); }
.accent { color: var(--accent); }

/* name explanation — first thing after hero, big and quiet */
.name-section { padding-top: 56px; padding-bottom: 56px; }
.name-title {
  font-size: clamp(48px, 8vw, 96px);
  font-weight: 600;
  color: var(--accent);
  letter-spacing: -0.04em;
  margin-bottom: 28px;
}
.name-section .lede em {
  font-style: normal;
  font-weight: 600;
  color: var(--ink);
}
.name-section .lede strong {
  font-weight: 600;
  color: var(--accent-deep, var(--accent));
}

.lede {
  font-size: clamp(17px, 1.6vw, 21px);
  color: var(--ink-soft);
  max-width: 640px;
  margin: 0 auto 28px;
  line-height: 1.5;
}

.split {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: start;
}
.split-text p { font-size: 18px; color: var(--ink-soft); margin: 0 0 16px; }
@media (max-width: 880px) {
  .split { grid-template-columns: 1fr; gap: 32px; }
}

/* product cards */
.cards {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
  margin-top: 60px;
}
.card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 22px; padding: 32px;
  transition: transform .25s ease, background .25s ease, border-color .25s ease;
}
.section:not(.dark) .card { background: var(--bg-soft); border-color: var(--line); }
.card:hover { transform: translateY(-4px); background: rgba(255,255,255,0.08); }
.card-icon {
  width: 56px; height: 56px; border-radius: 14px;
  background: rgba(76,212,152,0.16); color: var(--accent-light);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 22px;
}
.section:not(.dark) .card-icon { background: var(--accent-soft); color: var(--accent-deep); }
.card-icon svg { width: 28px; height: 28px; }
.card h3 {
  font-family: var(--f-display);
  font-size: 22px; font-weight: 600;
  letter-spacing: -0.015em; margin: 0 0 10px;
}
.card p {
  font-size: 16px; color: rgba(245,245,247,0.7);
  margin: 0; line-height: 1.55;
}
.section:not(.dark) .card p { color: var(--ink-soft); }
@media (max-width: 900px) { .cards { grid-template-columns: 1fr; } }

/* personas */
.persona-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px;
  margin-top: 56px;
}
.persona {
  background: #fff;
  border: 1px solid var(--line); border-radius: 22px;
  padding: 36px;
  box-shadow: var(--shadow-soft);
  transition: transform .25s ease, box-shadow .25s ease;
}
.persona:hover { transform: translateY(-3px); box-shadow: var(--shadow-strong); }
.persona-tag {
  display: inline-block;
  padding: 5px 12px; border-radius: 999px;
  background: var(--accent-soft); color: var(--accent-deep);
  font-size: 12px; font-weight: 600; letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 18px;
}
.persona h3 {
  font-family: var(--f-display);
  font-size: 26px; line-height: 1.15; letter-spacing: -0.02em;
  margin: 0 0 14px; font-weight: 600;
}
.persona p {
  font-size: 16px; color: var(--ink-soft); line-height: 1.55;
  margin: 0 0 18px;
}
.persona-list {
  list-style: none; padding: 0; margin: 0;
  border-top: 1px solid var(--line); padding-top: 16px;
  display: flex; flex-direction: column; gap: 8px;
}
.persona-list li {
  position: relative; padding-left: 20px;
  font-size: 14px; color: var(--ink-soft);
}
.persona-list li::before {
  content: ''; position: absolute; left: 0; top: 8px;
  width: 6px; height: 6px; border-radius: 50%; background: var(--accent);
}
@media (max-width: 880px) { .persona-grid { grid-template-columns: 1fr; } }

/* phone mockups */
.phones {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 36px;
  margin-top: 60px; align-items: end;
}
.phone { margin: 0; text-align: center; }
.phone-tilt-right { transform: translateY(-20px); }

.phone-frame {
  width: 240px; height: 480px;
  margin: 0 auto;
  border-radius: 38px;
  background: linear-gradient(160deg, #1c1c1e, #2c2c2e);
  padding: 10px;
  box-shadow:
    inset 0 0 0 1px rgba(255,255,255,0.06),
    0 30px 60px rgba(0,0,0,0.5);
  position: relative;
}
.phone-notch {
  position: absolute; top: 14px; left: 50%; transform: translateX(-50%);
  width: 60px; height: 18px; border-radius: 999px;
  background: #000;
  z-index: 2;
}
.phone-screen {
  width: 100%; height: 100%;
  border-radius: 30px;
  background: #f5f5f7;
  overflow: hidden; position: relative;
  display: flex; flex-direction: column;
  color: var(--ink);
  font-size: 12px;
}
.phs-bar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 22px 4px;
  font-weight: 600; font-size: 11px;
}
.phs-time { font-size: 12px; }
.phs-icons { display: inline-flex; gap: 4px; align-items: center; }
.phs-dot { width: 5px; height: 5px; border-radius: 50%; background: #1d1d1f; opacity: 0.7; }
.phs-bat { width: 16px; height: 8px; border: 1px solid #1d1d1f; border-radius: 2px; opacity: 0.7; }
.phs-content { flex: 1; padding: 8px 14px 0; display: flex; flex-direction: column; }
.phs-title {
  font-family: var(--f-display);
  font-size: 16px; font-weight: 600; letter-spacing: -0.01em;
  margin: 8px 0 14px;
}
.phs-pres {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 14px; border-radius: 14px;
  background: #e6f7ee; color: var(--accent-deep);
  margin-bottom: 12px;
}
.phs-pres.ok { background: #e6f7ee; color: var(--accent-deep); }
.phs-pres-icon {
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--accent); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 14px;
}
.phs-pres-text { font-weight: 600; font-size: 13px; }
.phs-house {
  width: 100%; height: auto; max-width: 140px;
  margin: 4px auto 10px; display: block;
}
.phs-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 6px;
  margin-bottom: auto;
}
.phs-grid > div {
  background: #fff; border-radius: 10px; padding: 8px 10px;
  border: 1px solid var(--line);
}
.phs-label { font-size: 9px; color: var(--ink-mute); text-transform: uppercase; letter-spacing: 0.06em; }
.phs-val { font-size: 12px; font-weight: 600; font-variant-numeric: tabular-nums; margin-top: 2px; }
.phs-row {
  display: flex; align-items: center; justify-content: space-between;
  background: #fff; border: 1px solid var(--line);
  border-radius: 12px; padding: 10px 12px; margin-bottom: 8px;
}
.phs-row-t { font-size: 12px; font-weight: 600; }
.phs-row-s { font-size: 10px; color: var(--ink-mute); margin-top: 2px; }
.phs-switch {
  width: 28px; height: 16px; border-radius: 999px;
  background: #d1d1d6; position: relative; transition: background .15s;
}
.phs-switch::after {
  content: ''; position: absolute; top: 2px; left: 2px;
  width: 12px; height: 12px; border-radius: 50%; background: #fff;
  transition: left .15s; box-shadow: 0 1px 2px rgba(0,0,0,0.2);
}
.phs-switch.on { background: var(--accent); }
.phs-switch.on::after { left: 14px; }
.phs-summary {
  background: var(--accent-soft); color: var(--accent-deep);
  border-radius: 10px; padding: 8px 10px;
  font-size: 10px; line-height: 1.4;
  margin-top: 6px; margin-bottom: auto;
}
.phs-tabs {
  display: flex; justify-content: space-around;
  background: #fff; border-top: 1px solid var(--line);
  padding: 10px 4px 14px;
  margin: 6px -14px 0;
}
.phs-tabs span {
  font-size: 9px; color: var(--ink-mute);
  font-weight: 500;
}
.phs-tabs span.active { color: var(--accent); font-weight: 600; }

/* phone 3 — lock screen with push */
.phs-lock {
  background: linear-gradient(160deg, #1c1c1e, #3a3a3c);
  color: #fff;
  padding: 36px 18px 18px;
  text-align: center;
}
.phs-lock-time {
  font-family: var(--f-display);
  font-weight: 200; font-size: 56px;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-top: 14px;
}
.phs-lock-date { font-size: 12px; opacity: 0.7; margin-bottom: 32px; }
.phs-push {
  text-align: left;
  background: rgba(255,255,255,0.18);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 14px; padding: 10px 12px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}
.phs-push-head {
  display: flex; align-items: center; gap: 6px;
  font-size: 10px; opacity: 0.85;
  margin-bottom: 4px;
}
.phs-push-icon {
  width: 16px; height: 16px; border-radius: 4px;
  background: var(--accent);
}
.phs-push-app { font-weight: 700; }
.phs-push-ts { margin-left: auto; opacity: 0.7; }
.phs-push-title { font-weight: 700; font-size: 12px; margin: 2px 0; }
.phs-push-body { font-size: 11px; opacity: 0.92; line-height: 1.35; }

.phone figcaption {
  margin-top: 22px; font-size: 14px;
  color: rgba(245,245,247,0.65);
  max-width: 240px; margin-left: auto; margin-right: auto;
  line-height: 1.4;
}
.section:not(.dark) .phone figcaption { color: var(--ink-soft); }

@media (max-width: 1000px) {
  .phones { grid-template-columns: 1fr; gap: 60px; }
  .phone-tilt-right { transform: none; }
}

/* steps */
.steps {
  list-style: none; padding: 0; margin: 60px 0 0;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
  counter-reset: step;
}
.steps li { border-top: 1px solid var(--line-dark); padding-top: 28px; }
.step-num {
  font-family: var(--f-display);
  font-size: 14px; font-weight: 600;
  color: var(--accent-light); letter-spacing: 0.08em;
}
.steps h3 {
  font-family: var(--f-display);
  margin: 12px 0 8px; font-size: 22px; letter-spacing: -0.015em;
}
.steps p { margin: 0; color: rgba(245,245,247,0.7); font-size: 16px; line-height: 1.55; }
@media (max-width: 900px) { .steps { grid-template-columns: 1fr; } }

/* check list */
.check-list {
  list-style: none; padding: 0; margin: 18px 0 0;
  display: flex; flex-direction: column; gap: 12px;
}
.check-list li {
  display: flex; align-items: flex-start; gap: 12px;
  font-size: 17px; color: var(--ink-soft);
}
.check-list .dot {
  flex: 0 0 auto;
  margin-top: 8px;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

/* specs */
.specs {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-top: 60px;
  border-top: 1px solid var(--line);
}
.specs > div {
  padding: 28px 28px 28px 0;
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
}
.specs > div:nth-child(3n) { border-right: none; }
.specs h4 {
  font-family: var(--f-display);
  font-size: 14px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--accent-deep);
  margin: 0 0 8px;
}
.specs p { margin: 0; color: var(--ink-soft); font-size: 16px; line-height: 1.5; }
@media (max-width: 880px) {
  .specs { grid-template-columns: 1fr; }
  .specs > div { border-right: none; padding-right: 0; }
}

/* architecture diagram */
.arch {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  gap: 16px;
  align-items: stretch;
  margin-top: 60px;
}
.arch-node {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 18px; padding: 24px;
  display: flex; flex-direction: column; gap: 8px;
}
.arch-icon { font-size: 28px; line-height: 1; }
.arch-node h4 {
  font-family: var(--f-display);
  font-size: 16px; margin: 4px 0 0; letter-spacing: -0.01em;
}
.arch-node p { margin: 0; font-size: 14px; color: rgba(245,245,247,0.65); line-height: 1.5; }
.arch-arrow {
  align-self: center; color: var(--accent-light); font-size: 22px;
}
@media (max-width: 900px) {
  .arch { grid-template-columns: 1fr; gap: 12px; }
  .arch-arrow { transform: rotate(90deg); justify-self: center; }
}

/* house stage */
.hero-house {
  padding: 100px 24px;
  background: linear-gradient(180deg, #fbfbfb, #f5f5f7);
  text-align: center;
}
.house-stage { max-width: 540px; margin: 48px auto 0; }
.house-stage img { filter: drop-shadow(0 30px 50px rgba(0,0,0,0.12)); width: 100%; }

/* center-only */
.center-only .lede { color: var(--ink-soft); margin-left: auto; margin-right: auto; }
.section.dark.center-only .lede { color: rgba(245,245,247,0.72); }
.micro { font-size: 13px; color: var(--ink-mute); margin-top: 14px; }
.section.dark .micro { color: rgba(245,245,247,0.4); }

/* ───────────── buttons ───────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 500; font-size: 16px;
  letter-spacing: -0.005em;
  transition: transform .12s ease, background .15s ease, color .15s ease, box-shadow .15s ease;
  cursor: pointer; border: 1px solid transparent;
  font-family: inherit;
}
.btn:active { transform: scale(0.98); }
.btn-primary {
  background: var(--accent); color: #fff;
  box-shadow: 0 8px 22px rgba(43,182,115,0.32);
}
.btn-primary:hover { background: var(--accent-deep); }
.btn-ghost {
  color: var(--accent-deep);
  border-color: rgba(43,182,115,0.4);
  background: transparent;
}
.section.dark .btn-ghost { color: var(--accent-light); border-color: rgba(76,212,152,0.45); }
.btn-ghost:hover { background: var(--accent-soft); }
.btn.big { padding: 16px 28px; font-size: 17px; }
.btn.full { width: 100%; }

/* ───────────── form ───────────── */
.signup {
  margin-top: 40px;
  /* Widen beyond the surrounding `.container.narrow` (820 px) so the
     name/email/country inputs have room to breathe — but stay inside
     the page max-width so the form is still centred. */
  max-width: 960px;
  margin-left: auto;
  margin-right: auto;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 22px; padding: 36px;
}
.section:not(.dark) .signup {
  background: var(--bg-soft);
  border-color: var(--line);
  box-shadow: var(--shadow-soft);
}
.field { display: flex; flex-direction: column; gap: 8px; margin-bottom: 18px; }
.field label {
  font-size: 13px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: rgba(245,245,247,0.72);
}
.section:not(.dark) .field label { color: var(--ink-soft); }
.field .opt { font-weight: 400; text-transform: none; letter-spacing: 0; color: var(--ink-mute); }
.field input,
.field select,
.field textarea {
  font: inherit; font-size: 16px;
  padding: 14px 16px;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 12px;
  background: rgba(255,255,255,0.06);
  color: #f5f5f7;
  transition: border-color .15s ease, box-shadow .15s ease;
  width: 100%;
}
.section:not(.dark) .field input,
.section:not(.dark) .field select,
.section:not(.dark) .field textarea {
  background: #fff; color: var(--ink); border-color: var(--line);
}
.field input::placeholder,
.field textarea::placeholder { color: rgba(255,255,255,0.4); }
.section:not(.dark) .field input::placeholder,
.section:not(.dark) .field textarea::placeholder { color: var(--ink-mute); }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}
.field textarea { resize: vertical; min-height: 80px; }

.check-row {
  display: flex; align-items: flex-start; gap: 12px;
  font-size: 14px; color: rgba(245,245,247,0.7);
  margin: 6px 0 20px;
}
.section:not(.dark) .check-row { color: var(--ink-soft); }
.check-row input { margin-top: 4px; accent-color: var(--accent); width: 16px; height: 16px; }
.check-row a { color: var(--accent-light); text-decoration: underline; }
.section:not(.dark) .check-row a { color: var(--accent-deep); }

.form-status {
  margin: 16px 0 0; font-size: 14px; min-height: 1.2em;
  color: rgba(245,245,247,0.7);
}
.section:not(.dark) .form-status { color: var(--ink-soft); }
.form-status.ok  { color: var(--accent-light); }
.form-status.err { color: #ff6b6b; }
.section:not(.dark) .form-status.ok  { color: var(--accent-deep); }
.section:not(.dark) .form-status.err { color: #c0392b; }

/* ───────────── faq ───────────── */
.faq-list { margin-top: 40px; }
details {
  border-top: 1px solid var(--line);
  padding: 22px 4px;
}
.section.dark details { border-top-color: rgba(255,255,255,0.10); }
details:last-child { border-bottom: 1px solid var(--line); }
.section.dark details:last-child { border-bottom-color: rgba(255,255,255,0.10); }
details summary {
  list-style: none; cursor: pointer;
  font-family: var(--f-display);
  font-size: 19px; font-weight: 500;
  letter-spacing: -0.015em;
  display: flex; justify-content: space-between; align-items: center;
}
details summary::-webkit-details-marker { display: none; }
details summary::after {
  content: "+";
  font-size: 26px; font-weight: 300;
  color: var(--accent);
  transition: transform .25s ease;
}
.section.dark details summary::after { color: var(--accent-light); }
details[open] summary::after { content: "−"; }
details p {
  margin: 14px 0 0;
  color: var(--ink-soft);
  font-size: 16px; line-height: 1.55;
  max-width: 720px;
}
.section.dark details p { color: rgba(245,245,247,0.7); }

/* ───────────── footer ───────────── */
.footer {
  background: #0a0a0a; color: rgba(255,255,255,0.65);
  padding: 56px 0 32px;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.footer .split { gap: 24px; align-items: center; }
.footer .brand { color: #fff; }
.foot-links {
  display: flex; gap: 24px; flex-wrap: wrap;
  font-size: 14px;
}
.foot-links a { color: rgba(255,255,255,0.65); }
.foot-links a:hover { color: #fff; }
.foot-legal {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  font-size: 13px; color: rgba(255,255,255,0.4);
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.foot-legal a { color: rgba(255,255,255,0.55); text-decoration: underline; text-underline-offset: 3px; }

.muted { color: var(--ink-mute); }
.small { font-size: 14px; }

/* ───────────── reduced motion ───────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001s !important;
    transition-duration: 0.001s !important;
  }
  html { scroll-behavior: auto; }
}

/* ───────────── showcase: sticky image + scrolling text ───────────── */
.showcase {
  background: linear-gradient(180deg, #fbfbfb 0%, #f5f5f7 100%);
  padding: 64px 24px 96px;
  border-top: 1px solid var(--line);
}
.showcase-head {
  max-width: var(--maxw); margin: 0 auto 24px;
  text-align: center;
}
.showcase-head .kicker { margin-bottom: 0; }
.showcase-inner {
  max-width: var(--maxw); margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.showcase-sticky {
  position: sticky;
  top: 80px;
  display: flex; align-items: center; justify-content: center;
  height: calc(100vh - 120px);
  min-height: 480px;
}
.showcase-device {
  display: block;
  width: clamp(280px, 36vw, 480px);
  filter: drop-shadow(0 30px 50px rgba(0,0,0,0.18));
  animation: showcase-tilt linear both;
  animation-timeline: view();
  animation-range: cover 0% cover 100%;
}
.showcase-device img { width: 100%; height: auto; display: block; }
@keyframes showcase-tilt {
  from { transform: rotate(-3deg) scale(0.95); }
  to   { transform: rotate(3deg) scale(1.0); }
}
.showcase-text {
  display: flex; flex-direction: column;
  gap: 30vh;
  padding: 18vh 0;
}
.showcase-step { max-width: 460px; }
.showcase-step .kicker { margin-bottom: 14px; }
.showcase-step .display { margin: 0 0 18px; }
.display.med {
  font-size: clamp(28px, 3.5vw, 46px);
}
.showcase-step .lede { margin: 0; max-width: 460px; }

@media (max-width: 880px) {
  .showcase { padding: 48px 20px 64px; }
  .showcase-inner { grid-template-columns: 1fr; gap: 24px; }
  .showcase-sticky {
    position: relative; top: auto;
    height: auto; min-height: 0;
    margin-bottom: 8px;
  }
  .showcase-device { width: 60vw; max-width: 320px; }
  .showcase-text { gap: 40px; padding: 0; }
  .showcase-step { max-width: none; }
}

/* ───────────── datasheet (unobtrusive tech section) ───────────── */
.datasheet {
  padding: 80px 24px;
  background: var(--bg-soft);
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
}
.datasheet .kicker { color: var(--ink-mute); margin-bottom: 10px; }
.datasheet-title {
  font-family: var(--f-display);
  font-size: 28px; font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
  color: var(--ink);
}
.datasheet-lede {
  font-size: 15px; color: var(--ink-mute);
  margin: 0 0 36px;
}
.datasheet-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin: 0;
  border-top: 1px solid var(--line);
  font-size: 14px;
}
.datasheet-grid > div {
  padding: 22px 28px;
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
}
/* Flush text to the outer edge — only inner cells need horizontal padding. */
.datasheet-grid > div:nth-child(3n+1) { padding-left: 0; }
.datasheet-grid > div:nth-child(3n)   { padding-right: 0; }
.datasheet-grid > div:nth-child(3n) { border-right: none; }
.datasheet-grid dt {
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 11px;
  color: var(--ink-mute);
  margin-bottom: 6px;
}
.datasheet-grid dd {
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.5;
}
@media (max-width: 880px) {
  .datasheet-grid { grid-template-columns: 1fr; }
  .datasheet-grid > div { border-right: none; padding-right: 0; }
}

/* honeypot — hide from humans, keep for bots */
.hp-field {
  position: absolute !important;
  left: -10000px !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
}

/* ───────────── reveal on scroll ───────────── */
.js-ready .reveal { opacity: 0; transform: translateY(20px); transition: opacity .7s ease, transform .7s ease; }
.js-ready .reveal.in { opacity: 1; transform: none; }