:root {
  color-scheme: dark;
  --bg: #060707;
  --panel: #111517;
  --panel-strong: #171d20;
  --line: rgba(244, 247, 245, 0.12);
  --accent: #68ff93;
  --text: #f4f7f5;
  --muted: #9ba6a8;
  --shadow: 0 22px 70px rgba(0, 0, 0, 0.44);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100svh;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 12% 0%, rgba(104, 255, 147, 0.09), transparent 28%),
    linear-gradient(180deg, #050606 0%, #0c0e10 45%, #070808 100%);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
}

.gate {
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.gate[hidden],
.is-locked {
  display: none !important;
}

.gate-card {
  width: min(100%, 440px);
  padding: 28px;
  border: 1px solid rgba(104, 255, 147, 0.24);
  border-radius: 18px;
  background: rgba(12, 15, 16, 0.88);
  box-shadow: var(--shadow);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 900;
  text-decoration: none;
}

.brand img {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  object-fit: cover;
}

.gate-card .brand {
  margin-bottom: 28px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 14px;
  font-size: clamp(38px, 8vw, 76px);
  line-height: 0.92;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1;
}

p {
  color: var(--muted);
}

label {
  display: grid;
  gap: 8px;
  margin: 18px 0 14px;
  font-weight: 800;
}

input {
  min-height: 46px;
  padding: 10px 12px;
  border: 1px solid rgba(104, 255, 147, 0.26);
  border-radius: 8px;
  background: #050706;
  color: var(--text);
  font: inherit;
}

button {
  width: 100%;
  min-height: 46px;
  border: 1px solid rgba(104, 255, 147, 0.45);
  border-radius: 8px;
  background: var(--accent);
  color: #061008;
  font: inherit;
  font-weight: 900;
}

.gate-error {
  min-height: 22px;
  margin: 14px 0 0;
  color: #ff8f8f;
}

.dev {
  width: min(100%, 1440px);
  margin: 0 auto;
  padding: 24px clamp(18px, 4vw, 54px) 80px;
  overflow-x: hidden;
}

.dev-header {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin: -24px calc(clamp(18px, 4vw, 54px) * -1) 0;
  padding: 18px clamp(18px, 4vw, 54px);
  border-bottom: 1px solid var(--line);
  background: rgba(5, 6, 6, 0.78);
  backdrop-filter: blur(18px);
}

.back-link {
  padding: 8px 12px;
  border: 1px solid rgba(104, 255, 147, 0.36);
  border-radius: 7px;
  font-weight: 800;
  text-decoration: none;
}

.intro {
  padding: clamp(84px, 12vw, 150px) 0 clamp(54px, 8vw, 100px);
}

.intro p {
  max-width: 760px;
  font-size: 18px;
}

.panel {
  margin-bottom: 28px;
  padding: clamp(22px, 4vw, 34px);
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(17, 21, 23, 0.82);
  box-shadow: var(--shadow);
}

.app-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 340px);
  gap: clamp(24px, 5vw, 56px);
  align-items: center;
}

.phone-shot {
  margin: 0;
}

.phone-shot img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 640px;
  object-fit: contain;
  border: 10px solid #0b0e10;
  border-radius: 36px;
  background: #000;
}

.open-sim {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  margin-top: 8px;
  padding: 10px 14px;
  border: 1px solid rgba(104, 255, 147, 0.36);
  border-radius: 7px;
  color: var(--text);
  font-weight: 900;
  text-decoration: none;
}

.simulator-panel {
  padding-bottom: 18px;
}

.sim-frame {
  display: block;
  max-width: 100%;
  width: 100%;
  height: min(920px, 82vh);
  border: 1px solid rgba(104, 255, 147, 0.18);
  border-radius: 10px;
  background: #050606;
}

.section-heading {
  margin-bottom: 26px;
}

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

figure {
  margin: 0;
}

.screen-grid figure {
  padding: 12px;
  border: 1px solid rgba(104, 255, 147, 0.16);
  border-radius: 8px;
  background: #070909;
}

.screen-grid img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid rgba(104, 255, 147, 0.18);
  border-radius: 5px;
  background: #020802;
}

figcaption {
  margin-top: 10px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

@media (max-width: 900px) {
  .app-panel,
  .screen-grid {
    grid-template-columns: 1fr;
  }

  .sim-frame {
    height: 100svh;
    min-height: 720px;
  }

  .dev-header {
    align-items: flex-start;
  }
}

@media (max-width: 520px) {
  .dev {
    padding: 18px 10px 56px;
  }

  .panel {
    padding: 14px;
  }

  .simulator-panel {
    margin-left: -4px;
    margin-right: -4px;
    padding-left: 8px;
    padding-right: 8px;
  }
}