/* --- Variables --- */
:root {
  --bg-deep: #0a0a12;
  --bg-mid: #12121f;
  --bg-card: rgba(255, 255, 255, 0.04);
  --border-glass: rgba(255, 255, 255, 0.08);
  --text: #e8e8f0;
  --text-muted: #a0a0b8;
  --accent: #00d4aa;
  --accent-hover: #00f0c0;
  --accent-glow: rgba(0, 212, 170, 0.35);
  --font: 'Outfit', -apple-system, sans-serif;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  --transition: 0.25s ease;
}

/* --- Base --- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg-deep);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover {
  color: var(--accent-hover);
}

/* --- Background layers --- */
.bg-gradient {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(0, 212, 170, 0.15), transparent),
    radial-gradient(ellipse 60% 40% at 90% 50%, rgba(100, 80, 200, 0.12), transparent),
    radial-gradient(ellipse 50% 30% at 10% 80%, rgba(0, 150, 200, 0.1), transparent),
    linear-gradient(180deg, #0f0f1a 0%, #0a0a12 100%);
  animation: gradientShift 15s ease-in-out infinite alternate;
}

@keyframes gradientShift {
  0% { opacity: 1; transform: scale(1); }
  100% { opacity: 0.95; transform: scale(1.02); }
}

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 30%, black 20%, transparent 70%);
}

/* --- Glass --- */
.glass {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-glass);
}

/* --- Nav --- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 2rem;
  margin: 0 1rem 1rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text);
  font-weight: 600;
  font-size: 1.1rem;
}
.nav-logo:hover {
  color: var(--text);
}
.nav-logo img {
  border-radius: 8px;
}

.nav-toggle {
  display: none;
  padding: 0.5rem;
  background: transparent;
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
  transition: background var(--transition);
}
.nav-toggle:hover {
  background: rgba(255,255,255,0.06);
}

.nav-list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-list a {
  display: block;
  padding: 0.5rem 1rem;
  color: var(--text-muted);
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.nav-list a:hover {
  color: var(--accent);
  background: rgba(255,255,255,0.04);
}

/* --- Hero --- */
.hero {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3rem;
  padding: 4rem 2rem 5rem;
  max-width: 1200px;
  margin: 0 auto;
}

.hero-content {
  flex: 1;
  text-align: left;
}

.hero-logo {
  width: 100px;
  height: 100px;
  border-radius: 20px;
  margin-bottom: 1rem;
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  margin: 0 0 0.25rem;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #fff 0%, var(--text-muted) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin: 0 0 1rem;
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin: 0 0 2rem;
  max-width: 420px;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
}

.btn {
  display: inline-flex;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 1.8rem;
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  white-space: nowrap;
  min-width: 0;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, #00a884 100%);
  color: #0a0a12;
  box-shadow: 0 4px 20px var(--accent-glow);
  min-width: 10em;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px var(--accent-glow);
  background: linear-gradient(135deg, var(--accent-hover) 0%, var(--accent) 100%);
}
.btn-primary small {
  display: block;
  width: 100%;
  font-size: 0.75rem;
  font-weight: 400;
  opacity: 0.9;
  margin-top: 0.25rem;
  white-space: nowrap;
}

.btn-primary span {
  white-space: nowrap;
}

.btn-ms {
  padding: 0.5rem;
  background: transparent;
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
}
.btn-ms:hover {
  background: rgba(255,255,255,0.04);
}
.btn-ms img {
  display: block;
  height: 40px;
  width: auto;
}

.hero-other {
  font-size: 0.9rem;
  color: var(--text-muted);
}
.hero-other:hover {
  color: var(--accent);
}

.hero-image {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero-image img {
  max-width: 100%;
  width: 100%;
  max-width: 520px;
  border-radius: var(--radius);
  box-shadow: 0 30px 60px rgba(0,0,0,0.4);
}

/* --- Cards (highlights) --- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  padding: 2rem;
  max-width: 1100px;
  margin: 0 auto 4rem;
}

.card {
  padding: 2rem 1.5rem;
  border-radius: var(--radius);
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 30px 60px -15px rgba(0,0,0,0.5);
}

.card i {
  font-size: 2.5rem;
  color: var(--accent);
  margin-bottom: 1rem;
}

.card p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.card h2 {
  font-size: 2.2rem;
  font-weight: 700;
  margin: 0.25rem 0;
  letter-spacing: -0.02em;
}

/* --- About --- */
.about {
  padding: 4rem 2rem;
  margin: 0 auto 4rem;
}

.about-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 3rem;
  flex-wrap: wrap;
}

.about-text {
  flex: 1;
  min-width: 280px;
}

.about-text h2 {
  font-size: 1.75rem;
  margin: 0 0 1rem;
}

.about-text h3 {
  font-size: 1.2rem;
  margin: 2rem 0 0.75rem;
  color: var(--text-muted);
}

.about-text p,
.about-text li {
  color: var(--text-muted);
  margin: 0 0 0.75rem;
}

.about-text ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.about-screenshot {
  flex: 1;
  min-width: 280px;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.about-screenshot img {
  width: 100%;
  height: auto;
  display: block;
}

/* --- Features grid --- */
.features {
  padding: 4rem 2rem;
  max-width: 1100px;
  margin: 0 auto 4rem;
}

.features h2 {
  text-align: center;
  font-size: 1.75rem;
  margin: 0 0 2rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.feature {
  padding: 1.5rem;
  border-radius: var(--radius);
  transition: transform var(--transition);
}
.feature:hover {
  transform: translateY(-4px);
}

.feature i {
  font-size: 1.8rem;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.feature h3 {
  font-size: 1.1rem;
  margin: 0 0 0.35rem;
}

.feature p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* --- Download table --- */
.download-table-wrap {
  padding: 2rem;
  max-width: 900px;
  margin: 0 auto 4rem;
}

.download-table-wrap h2 {
  font-size: 1.35rem;
  margin: 0 0 1rem;
  text-align: center;
}

.table-scroll {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border-glass);
}

.download-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.download-table th,
.download-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-glass);
}

.download-table thead {
  background: rgba(255,255,255,0.04);
}

.download-table th {
  font-weight: 600;
  color: var(--text);
}

.download-table td {
  color: var(--text-muted);
}

.download-table code {
  font-size: 0.8rem;
  padding: 0.2rem 0.5rem;
  background: rgba(0,0,0,0.3);
  border-radius: 6px;
  word-break: break-all;
}

/* --- Footer --- */
.footer {
  padding: 2rem;
  border-top: 1px solid var(--border-glass);
  margin-top: 2rem;
}

.footer-inner {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  font-size: 0.95rem;
  color: var(--text-muted);
}

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

.footer .heart {
  color: #e74c3c;
}

/* --- Responsive --- */
@media (max-width: 900px) {
  .hero {
    flex-direction: column;
    text-align: center;
    padding: 3rem 1.5rem 4rem;
  }

  .hero-content {
    text-align: center;
  }

  .hero-desc {
    max-width: none;
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions {
    align-items: center;
  }

  .about-inner {
    flex-direction: column;
  }

  .about-text {
    order: 1;
  }

  .about-screenshot {
    order: 0;
  }
}

@media (max-width: 700px) {
  .nav {
    margin: 0 0.5rem 0.5rem;
    padding: 0.6rem 1rem;
  }

  .nav-list {
    display: none;
    position: absolute;
    top: 100%;
    left: 0.5rem;
    right: 0.5rem;
    margin-top: 0.5rem;
    flex-direction: column;
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius);
    padding: 1rem;
    box-shadow: var(--shadow);
  }

  .nav-list.is-open {
    display: flex;
  }

  .nav-toggle {
    display: block;
  }

  .cards {
    grid-template-columns: 1fr 1fr;
    padding: 1rem;
  }

  .card h2 {
    font-size: 1.6rem;
  }

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

@media (max-width: 480px) {
  .cards {
    grid-template-columns: 1fr;
  }

  .hero-logo {
    width: 80px;
    height: 80px;
  }
}