:root {
  color-scheme: dark;
  --bg: #07090a;
  --bg-soft: #111517;
  --panel: #161b1e;
  --panel-strong: #20272b;
  --text: #f3f5f4;
  --muted: #aeb8b5;
  --line: rgba(255, 255, 255, 0.13);
  --cyan: #32d4df;
  --primary: #32d4df;
  --amber: #ffb34a;
  --accent: #ffb34a;
  --green: #54d68b;
  --red: #ff6b65;
  --blue: #77a7ff;
  --radius: 8px;
  --hero-min-height: 88vh;
  --shadow: 0 22px 70px rgba(0, 0, 0, 0.42);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.5;
}

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

button,
input,
select {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 5vw, 72px);
  background: rgba(7, 9, 10, 0.54);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(18px);
  transition:
    background 0.2s ease,
    border-color 0.2s ease;
}

.site-header.scrolled {
  background: rgba(7, 9, 10, 0.88);
  border-color: var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 172px;
  color: var(--text);
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(50, 212, 223, 0.55);
  border-radius: var(--radius);
  background: #0d1618;
  color: var(--cyan);
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.5vw, 34px);
}

.main-nav a,
.header-action {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
}

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

.header-action {
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

.hero {
  position: relative;
  min-height: var(--hero-min-height);
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.hero-bg,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-bg {
  background-image: url("assets/hero-deepal-lineup-final.png");
  background-size: cover;
  background-position: center center;
  transform: scale(1.02);
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(7, 9, 10, 0.94), rgba(7, 9, 10, 0.67) 42%, rgba(7, 9, 10, 0.15)),
    linear-gradient(0deg, rgba(7, 9, 10, 0.82), rgba(7, 9, 10, 0) 42%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 390px);
  align-items: end;
  gap: clamp(28px, 5vw, 70px);
  width: min(1180px, calc(100% - 36px));
  min-height: var(--hero-min-height);
  margin: 0 auto;
  padding: 132px 0 72px;
}

.hero-copy {
  max-width: 680px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 16px;
  font-size: clamp(54px, 8vw, 118px);
  line-height: 0.92;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(30px, 4vw, 56px);
  line-height: 1;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 24px;
  line-height: 1.1;
}

.lead {
  max-width: 580px;
  color: #d6dddb;
  font-size: clamp(18px, 2vw, 23px);
}

.hero-actions,
.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button,
.app-item button,
.text-action,
.tab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border: 0;
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  transition:
    transform 0.18s ease,
    border-color 0.18s ease,
    background 0.18s ease,
    color 0.18s ease;
}

.button {
  padding: 13px 18px;
  color: #061012;
  font-weight: 800;
}

.button.primary {
  background: var(--primary);
}

.button.ghost {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.07);
  color: var(--text);
}

.button.contact {
  border: 1px solid rgba(255, 179, 74, 0.44);
  background: rgba(255, 179, 74, 0.13);
  color: var(--text);
}

.button.compact {
  align-self: end;
  min-width: 126px;
}

.button:hover,
.app-item button:hover,
.text-action:hover,
.tab:hover {
  transform: translateY(-1px);
}

.console-panel {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(14, 18, 20, 0.78);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.console-topline,
.device-card,
.meter-list div,
.status-stack span,
.support-list span {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.console-topline {
  color: var(--muted);
  font-size: 13px;
}

.console-topline strong {
  color: var(--green);
}

.signal-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 16px var(--green);
}

.device-card {
  margin: 18px 0;
  padding: 16px;
  border: 1px solid rgba(50, 212, 223, 0.24);
  border-radius: var(--radius);
  background: #0e1618;
}

.device-name {
  font-weight: 800;
}

.device-status {
  color: var(--cyan);
  font-size: 12px;
}

.meter-list {
  display: grid;
  gap: 10px;
}

.meter-list div,
.status-stack span,
.support-list span {
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.04);
}

.meter-list span,
.form-note,
.check-result {
  color: var(--muted);
}

.section-shell {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
}

.quick-check {
  background: var(--bg-soft);
  border-bottom: 1px solid var(--line);
}

.check-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.5fr;
  gap: 28px;
  align-items: end;
  padding: 34px 0;
}

.check-grid h2 {
  margin-bottom: 0;
  font-size: clamp(26px, 3vw, 36px);
}

.check-form {
  display: grid;
  grid-template-columns: 1fr 220px auto;
  gap: 12px;
  align-items: end;
}

label span {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 13px;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #0b0e0f;
  color: var(--text);
  outline: none;
}

input,
select {
  min-height: 46px;
  padding: 0 13px;
}

textarea {
  min-height: 104px;
  padding: 12px 13px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: rgba(50, 212, 223, 0.72);
}

.check-result {
  grid-column: 2;
  margin: 0;
}

.models,
.activation {
  padding: clamp(72px, 10vw, 128px) 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 30px;
}

.section-heading.split {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  max-width: none;
}

.model-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.model-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.model-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: #0d1011;
}

.model-card img.s07-photo {
  object-position: center 58%;
}

.model-card.accent {
  border-color: rgba(255, 179, 74, 0.28);
}

.model-copy {
  padding: 22px;
}

.model-copy p,
.activation-copy p,
.app-item p {
  color: var(--muted);
}

.model-badge {
  display: inline-flex;
  margin-bottom: 14px;
  padding: 6px 9px;
  border-radius: var(--radius);
  background: rgba(50, 212, 223, 0.12);
  color: var(--cyan);
  font-size: 12px;
  font-weight: 800;
}

.model-badge.amber {
  background: rgba(255, 179, 74, 0.12);
  color: var(--amber);
}

.text-action {
  min-height: 38px;
  padding: 0;
  background: transparent;
  color: var(--cyan);
  font-weight: 800;
}

.apps-band {
  padding: clamp(72px, 9vw, 112px) 0;
  background: var(--bg-soft);
  border-block: 1px solid var(--line);
}

.tab {
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
}

.tab.active {
  border-color: rgba(50, 212, 223, 0.64);
  color: var(--text);
  background: rgba(50, 212, 223, 0.12);
}

.app-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.app-item {
  display: grid;
  gap: 10px;
  min-height: 238px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #171d20;
}

.app-item[hidden] {
  display: none;
}

.app-icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  background: rgba(50, 212, 223, 0.14);
  color: var(--cyan);
  font-weight: 900;
}

.app-icon.green {
  background: rgba(84, 214, 139, 0.15);
  color: var(--green);
}

.app-icon.red {
  background: rgba(255, 107, 101, 0.15);
  color: var(--red);
}

.app-icon.amber {
  background: rgba(255, 179, 74, 0.16);
  color: var(--amber);
}

.app-icon.blue {
  background: rgba(119, 167, 255, 0.15);
  color: var(--blue);
}

.app-icon.gray {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
}

.app-item h3 {
  margin-bottom: 0;
  font-size: 20px;
}

.app-item p {
  margin-bottom: 10px;
}

.app-item button {
  align-self: end;
  min-height: 38px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
}

.activation {
  display: grid;
  grid-template-columns: 0.9fr minmax(280px, 460px);
  gap: clamp(28px, 6vw, 88px);
  align-items: start;
}

.status-stack {
  display: grid;
  gap: 10px;
  margin-top: 24px;
}

.status-stack strong {
  color: var(--amber);
}

.activation-form {
  display: grid;
  gap: 16px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.trap {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.support-band {
  padding: 54px 0;
  background: var(--bg-soft);
  border-top: 1px solid var(--line);
}

.support-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 32px;
  align-items: center;
}

.support-list {
  display: grid;
  gap: 10px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 26px clamp(18px, 5vw, 72px);
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 900px) {
  .site-header {
    position: absolute;
    align-items: flex-start;
  }

  .main-nav {
    display: none;
  }

  .hero,
  .hero-inner {
    min-height: auto;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    padding: 116px 0 44px;
  }

  .console-panel {
    max-width: 440px;
  }

  .check-grid,
  .check-form,
  .model-grid,
  .app-grid,
  .activation,
  .support-grid {
    grid-template-columns: 1fr;
  }

  .check-result {
    grid-column: 1;
  }

  .section-heading.split,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 560px) {
  .site-header {
    padding: 14px 16px;
  }

  .brand {
    min-width: 0;
  }

  .brand small,
  .header-action {
    display: none;
  }

  h1 {
    font-size: 52px;
  }

  h2 {
    font-size: 34px;
  }

  .hero-bg {
    background-position: 67% center;
  }

  .hero-overlay {
    background:
      linear-gradient(90deg, rgba(7, 9, 10, 0.96), rgba(7, 9, 10, 0.74)),
      linear-gradient(0deg, rgba(7, 9, 10, 0.86), rgba(7, 9, 10, 0.08));
  }

  .quick-check,
  .apps-band,
  .support-band {
    padding-left: 0;
    padding-right: 0;
  }

  .app-item {
    min-height: 210px;
  }
}