*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: rgb(13, 14, 18);
  --bg-2: #111115;
  --bg-3: #1c1c24;
  --accent: #00c8ff;
  --text: #dde0ea;
  --dim: #4a4a60;
  --border: #1e1e2a;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family:
    'Space Grotesk',
    -apple-system,
    sans-serif;
  font-weight: 400;
  line-height: 1.6;
}

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

/* ── NAV ── */
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 48px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
}

.logo {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.3px;
}

.logo span {
  color: var(--accent);
}

.nav-right {
  display: flex;
  gap: 32px;
  align-items: center;
  font-size: 0.875rem;
  color: var(--dim);
}

.nav-right a:hover {
  color: var(--text);
}

.nav-download {
  color: var(--accent) !important;
  font-weight: 500;
}

/* ── HERO ── */
.hero {
  padding: 80px 48px 0;
  max-width: 1200px;
  margin: 0 auto;
}

.hero-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 40px;
}

.hero-heading {
  font-size: clamp(3rem, 8vw, 6.5rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -2px;
}

.hero-heading em {
  font-style: normal;
  color: var(--accent);
}

.hero-right {
  text-align: right;
  flex-shrink: 0;
  padding-bottom: 8px;
}

.hero-right p {
  color: var(--dim);
  font-size: 0.9rem;
  margin-bottom: 20px;
  max-width: 280px;
  margin-left: auto;
}

.waveform {
  display: flex;
  gap: 3px;
  align-items: center;
  justify-content: flex-end;
  height: 36px;
  margin-bottom: 20px;
}

.waveform span {
  display: block;
  width: 3px;
  background: var(--accent);
  border-radius: 2px;
  opacity: 0.6;
  animation: wavebar 1.4s ease-in-out infinite;
}

.waveform span:nth-child(1) {
  height: 30%;
  animation-delay: 0s;
}
.waveform span:nth-child(2) {
  height: 60%;
  animation-delay: 0.1s;
}
.waveform span:nth-child(3) {
  height: 90%;
  animation-delay: 0.2s;
}
.waveform span:nth-child(4) {
  height: 55%;
  animation-delay: 0.3s;
}
.waveform span:nth-child(5) {
  height: 80%;
  animation-delay: 0.15s;
}
.waveform span:nth-child(6) {
  height: 40%;
  animation-delay: 0.25s;
}
.waveform span:nth-child(7) {
  height: 70%;
  animation-delay: 0.05s;
}
.waveform span:nth-child(8) {
  height: 50%;
  animation-delay: 0.35s;
}
.waveform span:nth-child(9) {
  height: 85%;
  animation-delay: 0.1s;
}
.waveform span:nth-child(10) {
  height: 35%;
  animation-delay: 0.4s;
}
.waveform span:nth-child(11) {
  height: 65%;
  animation-delay: 0.2s;
}
.waveform span:nth-child(12) {
  height: 45%;
  animation-delay: 0.3s;
}
.waveform span:nth-child(13) {
  height: 75%;
  animation-delay: 0s;
}
.waveform span:nth-child(14) {
  height: 25%;
  animation-delay: 0.45s;
}
.waveform span:nth-child(15) {
  height: 55%;
  animation-delay: 0.15s;
}
.waveform span:nth-child(16) {
  height: 90%;
  animation-delay: 0.05s;
}
.waveform span:nth-child(17) {
  height: 40%;
  animation-delay: 0.25s;
}
.waveform span:nth-child(18) {
  height: 70%;
  animation-delay: 0.35s;
}
.waveform span:nth-child(19) {
  height: 50%;
  animation-delay: 0.1s;
}
.waveform span:nth-child(20) {
  height: 30%;
  animation-delay: 0.4s;
}

@keyframes wavebar {
  0%,
  100% {
    transform: scaleY(0.4);
    opacity: 0.4;
  }
  50% {
    transform: scaleY(1);
    opacity: 0.8;
  }
}

.hero-cta {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.btn-dl {
  background: var(--accent);
  color: #08080f;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.875rem;
  padding: 11px 24px;
  border-radius: 6px;
  letter-spacing: 0.2px;
  transition: opacity 0.15s;
}

.btn-dl:hover {
  opacity: 0.85;
}

.btn-web {
  font-size: 0.875rem;
  color: var(--dim);
  transition: color 0.15s;
}

.btn-web:hover {
  color: var(--text);
}

.hero-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin-bottom: 40px;
}

.hero-img {
  display: block;
  width: 100%;
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
  border-right: 1px solid var(--border);
  border-radius: 8px 8px 0 0;
}

.hero-proof-card {
  margin-top: 20px;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
  background: var(--bg-2);
}

.hero-proof-card h2 {
  font-size: 1.3rem;
  letter-spacing: -0.4px;
  margin-bottom: 8px;
}

.hero-proof-card p {
  color: var(--dim);
  max-width: 700px;
  margin-bottom: 12px;
}

.hero-proof-card ul {
  list-style: none;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.hero-proof-card li {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.8rem;
  color: var(--text);
}

/* ── FEATURES ── */
.features {
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 48px;
}

.features-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 32px;
}

.features-header h2 {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--dim);
}

.features-header span {
  font-size: 0.75rem;
  color: var(--dim);
}

.feature-row {
  display: grid;
  grid-template-columns: 2rem 1fr 2fr;
  gap: 24px;
  align-items: baseline;
  padding: 24px 0;
  border-top: 1px solid var(--border);
  transition: border-color 0.15s;
}

.feature-row:last-child {
  border-bottom: 1px solid var(--border);
}

.feature-row:hover {
  border-top-color: var(--accent);
}

.feature-num {
  font-size: 0.75rem;
  color: var(--dim);
  font-variant-numeric: tabular-nums;
  padding-top: 2px;
}

.feature-name {
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: -0.2px;
}

.feature-desc {
  font-size: 0.875rem;
  color: var(--dim);
  line-height: 1.6;
}

/* ── PROOF ── */
.proof,
.changelog,
.faq {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 48px 80px;
}

.proof-header {
  margin-bottom: 24px;
}

.proof-header h2 {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--dim);
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.proof-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-2);
  padding: 20px;
}

.proof-card h3 {
  font-size: 1rem;
  margin-bottom: 8px;
}

.proof-card p {
  color: var(--dim);
  font-size: 0.9rem;
}

/* ── FAQ ── */
.faq-list {
  border-top: 1px solid var(--border);
}

.faq-list details {
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 500;
}

.faq-list p {
  margin-top: 10px;
  color: var(--dim);
  font-size: 0.9rem;
}

/* ── DOWNLOAD ── */
.download {
  border-top: 1px solid var(--border);
  padding: 100px 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
  max-width: 1200px;
  margin: 0 auto;
}

.download h2 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -1px;
  line-height: 1.1;
}

.download h2 span {
  color: var(--accent);
}

.download-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
  flex-shrink: 0;
}

.btn-dl-lg {
  background: var(--accent);
  color: #08080f;
  font-family: inherit;
  font-weight: 600;
  font-size: 1rem;
  padding: 14px 32px;
  border-radius: 6px;
  transition: opacity 0.15s;
}

.btn-dl-lg:hover {
  opacity: 0.85;
}

.download-note {
  font-size: 0.8rem;
  color: var(--dim);
}

.download-note a {
  color: var(--accent);
}
.download-note a:hover {
  text-decoration: underline;
}

/* ── FOOTER ── */
footer {
  border-top: 1px solid var(--border);
  padding: 24px 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--dim);
}

footer a:hover {
  color: var(--text);
}

.footer-links {
  display: flex;
  gap: 24px;
}

/* ── RESPONSIVE ── */
@media (max-width: 720px) {
  nav,
  .hero,
  .features,
  .download,
  footer {
    padding-left: 24px;
    padding-right: 24px;
  }

  .hero-top {
    flex-direction: column;
    align-items: flex-start;
    gap: 32px;
  }

  .hero-right {
    text-align: left;
  }
  .hero-right p {
    margin-left: 0;
  }
  .waveform {
    justify-content: flex-start;
  }
  .hero-cta {
    justify-content: flex-start;
  }

  .feature-row {
    grid-template-columns: 2rem 1fr;
  }

  .feature-desc {
    grid-column: 2;
    margin-top: -16px;
  }

  .download {
    flex-direction: column;
  }
  .download-right {
    align-items: flex-start;
  }

  .proof,
  .changelog,
  .faq {
    padding-left: 24px;
    padding-right: 24px;
  }

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

  .features-header {
    flex-direction: column;
    gap: 4px;
  }
}