@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600&display=swap");

:root {
  --bg: #060912;
  --card: rgba(255, 255, 255, 0.04);
  --accent: #7af0d8;
  --accent-strong: #51a5ff;
  --muted: #b6c0d6;
  --text: #eef2fb;
  --stroke: rgba(255, 255, 255, 0.08);
  --surface: rgba(255, 255, 255, 0.06);
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
}

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

body {
  margin: 0;
  font-family: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  background: radial-gradient(circle at 20% 20%, rgba(81, 165, 255, 0.18), transparent 35%),
    radial-gradient(circle at 80% 10%, rgba(122, 240, 216, 0.2), transparent 30%),
    radial-gradient(circle at 50% 70%, rgba(142, 107, 245, 0.12), transparent 35%), var(--bg);
  color: var(--text);
  min-height: 100vh;
}

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

.page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 28px;
}

.brand {
  font-weight: 600;
  letter-spacing: 0.8px;
  display: flex;
  gap: 10px;
  align-items: center;
}

.brand .dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  box-shadow: 0 0 0 6px rgba(122, 240, 216, 0.18);
}

.language-switch {
  display: inline-flex;
  gap: 8px;
  background: var(--surface);
  border: 1px solid var(--stroke);
  border-radius: 999px;
  padding: 4px;
}

.language-switch a {
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 14px;
  color: var(--muted);
  transition: all 0.2s ease;
}

.language-switch a.active {
  color: var(--bg);
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  box-shadow: 0 10px 25px rgba(81, 165, 255, 0.45);
}

.language-switch a:hover {
  color: var(--text);
}

.hero {
  background: var(--card);
  border: 1px solid var(--stroke);
  border-radius: 18px;
  padding: 24px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}

.hero h1 {
  margin: 0 0 12px 0;
  font-size: 30px;
  line-height: 1.2;
}

.hero p {
  margin: 0 0 16px 0;
  color: var(--muted);
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pill {
  padding: 6px 12px;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(81, 165, 255, 0.2), rgba(122, 240, 216, 0.16));
  color: #d9e6ff;
  border: 1px solid var(--stroke);
  font-size: 13px;
}

.workspace {
  margin-top: 22px;
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 16px;
}

.panel {
  background: var(--card);
  border: 1px solid var(--stroke);
  border-radius: 18px;
  padding: 20px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}

.panel h2 {
  margin: 0 0 12px 0;
  font-size: 20px;
}

form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

label {
  font-size: 14px;
  letter-spacing: 0.4px;
  color: var(--muted);
  text-transform: uppercase;
}

textarea {
  width: 100%;
  min-height: 160px;
  border-radius: 14px;
  border: 1px solid var(--stroke);
  background: #0a0f1d;
  color: var(--text);
  padding: 14px;
  resize: vertical;
  font-size: 15px;
}

select,
input[type="number"],
input[type="text"] {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--stroke);
  background: #0a0f1d;
  color: var(--text);
  padding: 10px 12px;
  font-size: 15px;
}

.control-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}

.form-control {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.slider-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.slider-value {
  width: 46px;
  text-align: right;
  color: var(--muted);
}

.ui-slider {
  background: #0e1528;
  border: 1px solid var(--stroke);
  border-radius: 999px;
  height: 10px;
}

.ui-slider-range {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
}

.ui-slider-handle {
  border-radius: 50%;
  border: 0;
  top: -4px;
  width: 18px;
  height: 18px;
  background: #fff;
  box-shadow: 0 8px 20px rgba(81, 165, 255, 0.4);
}

.actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

button {
  border: 0;
  cursor: pointer;
  font-weight: 600;
  border-radius: 12px;
  padding: 12px 16px;
  font-size: 15px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #0b1224;
  box-shadow: 0 10px 25px rgba(81, 165, 255, 0.45);
}

.secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--stroke);
}

button:hover {
  transform: translateY(-1px);
}

.audio-card {
  background: #0b1224;
  border-radius: 14px;
  padding: 14px;
  border: 1px dashed var(--stroke);
  min-height: 160px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  justify-content: center;
}

.status {
  color: var(--muted);
  margin: 0;
}

.status.ok {
  color: var(--accent);
}

.status.warn {
  color: #ffaf45;
}

.wave {
  display: grid;
  grid-template-columns: repeat(16, 1fr);
  gap: 4px;
}

.wave span {
  height: 32px;
  border-radius: 4px;
  background: linear-gradient(180deg, var(--accent), rgba(122, 240, 216, 0.2));
  animation: pulse 1.6s ease-in-out infinite;
}

.wave span:nth-child(odd) {
  animation-delay: 0.1s;
}

.wave span:nth-child(3n) {
  animation-delay: 0.25s;
}

@keyframes pulse {
  0%,
  100% {
    transform: scaleY(0.5);
    opacity: 0.6;
  }
  50% {
    transform: scaleY(1.1);
    opacity: 1;
  }
}

.notes {
  margin-top: 12px;
  color: var(--muted);
  font-size: 14px;
}

.notes ul {
  padding-left: 18px;
  margin: 6px 0 0 0;
  color: var(--text);
}

footer {
  margin-top: 22px;
  color: var(--muted);
  font-size: 14px;
}

.feature-grid {
  margin: 18px 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}

.feature-card {
  padding: 14px;
  border-radius: 14px;
  background: var(--card);
  border: 1px solid var(--stroke);
  box-shadow: var(--shadow);
}

.feature-card h3 {
  margin: 0 0 8px 0;
  font-size: 16px;
}

.feature-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

@media (max-width: 900px) {
  .workspace {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .language-switch {
    align-self: flex-start;
  }
}