:root {
  color-scheme: dark;
  --bg: #050d14;
  --bg-soft: #08151f;
  --panel: #101c27;
  --panel-2: #142532;
  --line: #244052;
  --line-strong: #2b5f68;
  --text: #f4f8fb;
  --muted: #9fb0bf;
  --cyan: #39d5df;
  --cyan-2: #41c9a0;
  --orange: #ffb347;
  --blue: #4b8df8;
  --green: #40c98f;
  --red: #ff5b5f;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.36);
  --radius: 8px;
  --max: 1200px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 78% 4%, rgba(57, 213, 223, 0.14), transparent 28rem),
    radial-gradient(circle at 12% 18%, rgba(255, 179, 71, 0.08), transparent 22rem),
    var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  letter-spacing: 0;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image: linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 100% 56px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.72), transparent 62%);
}

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

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

a:hover {
  color: var(--cyan);
}

:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: 4px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -5rem;
  z-index: 20;
  background: var(--orange);
  color: #111;
  padding: 0.7rem 1rem;
  border-radius: var(--radius);
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(5, 13, 20, 0.82);
  border-bottom: 1px solid rgba(80, 119, 137, 0.22);
  backdrop-filter: blur(18px);
}

.nav-wrap,
.section-inner {
  width: min(var(--max), calc(100% - 48px));
  margin-inline: auto;
}

.nav-wrap {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 8px;
  position: relative;
  background: #132231;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.05);
}

.brand-mark::before {
  content: "";
  position: absolute;
  inset: 9px;
  border-radius: 50%;
  background: radial-gradient(circle at center, var(--orange) 0 36%, #235868 37% 64%, transparent 65%);
}

.brand-mark::after {
  content: "";
  position: absolute;
  width: 10px;
  height: 10px;
  right: 8px;
  top: 8px;
  border-radius: 50%;
  background: var(--cyan);
}

.nav-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  color: var(--text);
}

.nav-toggle span,
.nav-toggle::before,
.nav-toggle::after {
  content: "";
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: currentColor;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(0.8rem, 1.6vw, 1.25rem);
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 700;
}

.lang-link {
  color: var(--cyan);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.8rem 1.2rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 850;
  line-height: 1.1;
}

.button.primary {
  background: var(--cyan-2);
  color: #04120f;
}

.button.secondary {
  border-color: var(--line);
  background: rgba(16, 28, 39, 0.72);
}

.button.play {
  background: var(--blue);
  color: white;
}

.hero {
  position: relative;
  padding: clamp(56px, 7vw, 96px) 0 clamp(48px, 6vw, 76px);
  overflow: hidden;
  background-image:
    linear-gradient(90deg, rgba(5, 13, 20, 0.9) 0%, rgba(5, 13, 20, 0.78) 36%, rgba(5, 13, 20, 0.42) 64%, rgba(5, 13, 20, 0.55) 100%),
    linear-gradient(180deg, rgba(5, 13, 20, 0.02) 0%, rgba(5, 13, 20, 0.12) 42%, rgba(5, 13, 20, 0.9) 100%),
    url("../images/hero-night-landscape-v2.jpg");
  background-position: center 20%;
  background-size: cover;
  border-bottom: 1px solid rgba(80, 119, 137, 0.22);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 70% 24%, rgba(57, 213, 223, 0.1), transparent 28rem),
    radial-gradient(circle at 18% 54%, rgba(5, 13, 20, 0.78), transparent 30rem);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(270px, 0.52fr);
  gap: clamp(2rem, 6vw, 5.5rem);
  align-items: start;
  min-height: min(660px, calc(100svh - 126px));
}

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 720px;
  padding-top: clamp(0.25rem, 2.5vh, 1.6rem);
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  font-weight: 900;
}

h1,
h2,
h3 {
  line-height: 1.08;
  margin: 0;
  letter-spacing: 0;
}

h1 {
  max-width: 680px;
  font-size: clamp(3.1rem, 6vw, 5.5rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 3.35rem);
}

h3 {
  font-size: 1.35rem;
}

.lead {
  max-width: 720px;
  color: #c6d2dc;
  font-size: clamp(1.12rem, 2vw, 1.35rem);
  margin: 1.35rem 0 0;
}

.hero-actions,
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.8rem;
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.pill {
  border: 1px solid rgba(57, 213, 223, 0.28);
  background: rgba(16, 28, 39, 0.68);
  border-radius: 999px;
  color: #d8e5ed;
  padding: 0.45rem 0.72rem;
  font-weight: 750;
  font-size: 0.9rem;
}

.phone-stage {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 520px;
  align-self: start;
  justify-self: end;
}

.phone-stage::before {
  content: "";
  position: absolute;
  width: min(100%, 460px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(57, 213, 223, 0.18), rgba(255, 179, 71, 0.06) 43%, transparent 68%);
}

.phone {
  position: relative;
  width: min(272px, 66vw);
  height: min(520px, 62svh);
  min-height: 430px;
  padding: 10px;
  overflow: hidden;
  border-radius: 34px;
  background: #030609;
  border: 1px solid rgba(255,255,255,0.12);
  box-shadow: var(--shadow);
}

.phone img {
  height: calc(100% + 120px);
  width: 100%;
  border-radius: 24px;
  object-fit: cover;
  object-position: 50% 8%;
  background: #000;
}

.status-card {
  position: absolute;
  right: clamp(-1.1rem, -1.6vw, -0.5rem);
  bottom: 56px;
  max-width: 248px;
  padding: 1rem;
  border: 1px solid rgba(65, 201, 160, 0.45);
  border-radius: var(--radius);
  background: rgba(16, 28, 39, 0.9);
  box-shadow: var(--shadow);
}

.status-card strong {
  display: block;
  color: var(--green);
}

section {
  padding: clamp(64px, 7vw, 96px) 0;
}

.section-head {
  max-width: 760px;
  margin-bottom: 2rem;
}

.section-head p {
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 1.08rem;
}

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

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

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

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

.card,
.feature-card,
.workflow-step,
.compat-box,
.privacy-note {
  background: rgba(16, 28, 39, 0.82);
  border: 1px solid rgba(80, 119, 137, 0.34);
  border-radius: var(--radius);
  padding: 1.35rem;
}

.card p,
.feature-card p,
.workflow-step p,
.compat-box p,
.privacy-note p {
  color: var(--muted);
  margin-bottom: 0;
}

.card .accent,
.feature-card .accent,
.workflow-step .accent {
  display: block;
  width: 6px;
  height: 24px;
  border-radius: 999px;
  background: var(--cyan);
  margin-bottom: 0.85rem;
}

.feature-card:nth-child(4) .accent,
.workflow-step:nth-child(2) .accent {
  background: var(--orange);
}

.feature-card:nth-child(5) .accent,
.feature-card:nth-child(7) .accent {
  background: var(--blue);
}

.feature-card:nth-child(6) .accent {
  background: var(--green);
}

.workflow {
  background: linear-gradient(180deg, rgba(20, 37, 50, 0.38), rgba(5, 13, 20, 0));
}

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

.workflow-step {
  position: relative;
}

.step-number {
  color: var(--cyan);
  font-size: 0.9rem;
  font-weight: 950;
}

.showcase {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
}

.ev-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.7rem;
  margin: 1.5rem 0;
}

.ev-step {
  min-height: 72px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 179, 71, 0.45);
  border-radius: var(--radius);
  background: rgba(255, 179, 71, 0.08);
  font-weight: 900;
}

.screenshot-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1rem, 2vw, 1.5rem);
}

.screen-card {
  overflow: hidden;
  border: 1px solid rgba(80, 119, 137, 0.34);
  border-radius: var(--radius);
  background: var(--panel);
}

.screen-card img {
  width: 100%;
  aspect-ratio: 9 / 16;
  object-fit: cover;
}

.screen-card figcaption {
  padding: 0.75rem 0.9rem 0.9rem;
  color: var(--muted);
  font-weight: 700;
}

.bulb-band,
.night-band,
.compat-band,
.final-cta {
  background: rgba(8, 21, 31, 0.76);
  border-block: 1px solid rgba(80, 119, 137, 0.22);
}

.dual-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.metric {
  min-height: 120px;
  padding: 1.2rem;
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(57, 213, 223, 0.11), rgba(65, 201, 160, 0.07));
  border: 1px solid rgba(57, 213, 223, 0.24);
}

.metric strong {
  display: block;
  font-size: 2.4rem;
  line-height: 1;
  color: #bdf8ff;
}

.night-visual {
  border: 1px solid rgba(255, 91, 95, 0.45);
  border-radius: var(--radius);
  padding: 1.2rem;
  background: linear-gradient(135deg, rgba(255, 91, 95, 0.2), rgba(16, 28, 39, 0.9));
}

.night-visual .red-line {
  height: 9px;
  border-radius: 999px;
  background: var(--red);
  margin: 1rem 0;
}

.compat-layout {
  display: grid;
  grid-template-columns: 1fr 0.8fr;
  gap: 1rem;
}

.model-list {
  margin: 0.8rem 0 0;
  padding-left: 1.2rem;
  color: var(--muted);
}

.faq {
  display: grid;
  gap: 0.8rem;
}

.faq-item {
  border: 1px solid rgba(80, 119, 137, 0.34);
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(16, 28, 39, 0.78);
}

.faq button {
  width: 100%;
  min-height: 58px;
  border: 0;
  background: transparent;
  color: var(--text);
  padding: 1rem;
  text-align: left;
  font: inherit;
  font-weight: 850;
  cursor: pointer;
}

.faq button::after {
  content: "+";
  float: right;
  color: var(--cyan);
}

.faq-item[data-open] button::after {
  content: "-";
}

.faq-panel {
  display: none;
  padding: 0 1rem 1rem;
  color: var(--muted);
}

.faq-item[data-open] .faq-panel {
  display: block;
}

.final-cta {
  text-align: center;
}

.final-cta .section-inner {
  max-width: 800px;
}

.site-footer {
  border-top: 1px solid rgba(80, 119, 137, 0.22);
  padding: 34px 0;
  color: var(--muted);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  align-items: center;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: flex-end;
}

.subpage {
  padding: clamp(56px, 8vw, 96px) 0;
}

.prose {
  max-width: 880px;
}

.prose p,
.prose li {
  color: var(--muted);
}

.placeholder {
  border-left: 5px solid var(--orange);
}

[data-reveal] {
  transform: translateY(12px);
  opacity: 0;
  transition: opacity 520ms ease, transform 520ms ease;
}

[data-reveal][data-visible] {
  transform: translateY(0);
  opacity: 1;
}

@media (max-width: 1080px) {
  .nav-links {
    gap: 0.85rem;
    font-size: 0.9rem;
  }

  .nav-links .button {
    padding-inline: 1rem;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(245px, 0.42fr);
    gap: 2.5rem;
  }

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

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

@media (max-width: 900px) {
  .hero-grid,
  .showcase,
  .dual-panel,
  .compat-layout {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    min-height: 0;
    gap: 2.75rem;
  }

  .hero-copy {
    padding-top: 0;
  }

  .why-grid,
  .workflow-grid,
  .usage-grid,
  .faq-grid,
  .screenshot-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .phone-stage {
    min-height: 490px;
    justify-self: center;
  }

  .status-card {
    right: -1.5rem;
    bottom: 38px;
  }

  .showcase > div:last-child {
    max-width: 680px;
  }
}

@media (max-width: 840px) and (min-width: 761px) {
  .nav-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    inset: 64px 24px auto;
    padding: 0.8rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #07111a;
    box-shadow: var(--shadow);
    flex-direction: column;
    align-items: stretch;
  }

  .nav-links[data-open] {
    display: flex;
  }

  .nav-links .button {
    width: 100%;
  }
}

@media (max-width: 760px) {
  .nav-wrap,
  .section-inner {
    width: min(var(--max), calc(100% - 40px));
  }

  .nav-wrap {
    min-height: 68px;
  }

  .brand {
    gap: 0.6rem;
    font-size: 0.96rem;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
  }

  .brand-mark::before {
    inset: 8px;
  }

  .nav-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    inset: 60px 20px auto;
    padding: 0.7rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #07111a;
    box-shadow: var(--shadow);
    flex-direction: column;
    align-items: stretch;
  }

  .nav-links[data-open] {
    display: flex;
  }

  .nav-links .button {
    width: 100%;
  }

  .hero {
    padding: 48px 0 56px;
    background-image:
      linear-gradient(90deg, rgba(5, 13, 20, 0.9) 0%, rgba(5, 13, 20, 0.68) 58%, rgba(5, 13, 20, 0.38) 100%),
      linear-gradient(180deg, rgba(5, 13, 20, 0.08) 0%, rgba(5, 13, 20, 0.22) 48%, rgba(5, 13, 20, 0.92) 100%),
      url("../images/hero-night-mobile-v1.png");
    background-position: center 14%;
  }

  section {
    padding: 58px 0;
  }

  h1 {
    font-size: clamp(2.8rem, 13vw, 4rem);
    line-height: 1.03;
  }

  h2 {
    font-size: clamp(1.85rem, 8vw, 2.5rem);
  }

  .lead {
    font-size: 1.08rem;
    line-height: 1.65;
  }

  .hero-actions,
  .cta-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .hero-actions .button,
  .cta-actions .button {
    width: 100%;
  }

  .trust-row {
    gap: 0.55rem;
    margin-top: 1.5rem;
  }

  .pill {
    font-size: 0.82rem;
    padding: 0.4rem 0.62rem;
  }

  .phone-stage {
    min-height: 440px;
    margin-top: -0.5rem;
  }

  .phone {
    width: min(258px, 75vw);
    height: 460px;
    min-height: 0;
    padding: 9px;
    border-radius: 30px;
  }

  .phone img {
    border-radius: 21px;
  }

  .status-card {
    right: -0.5rem;
    bottom: 24px;
    max-width: min(230px, 62vw);
    padding: 0.85rem;
    font-size: 0.9rem;
  }

  .why-grid,
  .workflow-grid,
  .usage-grid,
  .faq-grid,
  .screenshot-grid {
    grid-template-columns: 1fr;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .ev-strip {
    grid-template-columns: repeat(5, minmax(52px, 1fr));
    gap: 0.45rem;
    overflow-x: auto;
  }

  .ev-step {
    min-height: 58px;
    font-size: 0.86rem;
  }

  .dual-panel {
    grid-template-columns: 1fr;
  }

  .metric {
    min-height: 104px;
  }

  .screen-card {
    max-width: 360px;
  }

  .screenshot-grid {
    justify-items: center;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

@media (max-width: 420px) {
  .nav-wrap,
  .section-inner {
    width: min(var(--max), calc(100% - 32px));
  }

  .hero {
    padding-top: 40px;
  }

  .phone-stage {
    min-height: 420px;
  }

  .phone {
    width: min(240px, 78vw);
    height: 430px;
  }

  .status-card {
    max-width: 208px;
    font-size: 0.84rem;
  }
}

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