:root {
  --bg: #0b0e14;
  --bg-soft: #121623;
  --bg-card: #1a2033;
  --text: #e8ecf5;
  --text-dim: #9aa4bc;
  --accent: #8b5cf6;
  --accent-2: #ec4899;
  --accent-gradient: linear-gradient(135deg, #8b5cf6, #ec4899);
  --success: #22c55e;
  --danger: #ef4444;
  --border: #262c41;
  --radius: 14px;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 20px;
}

.hidden {
  display: none !important;
}

/* ================= HEADER ================= */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 14, 20, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  padding-bottom: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
}

.logo__mark {
  font-size: 26px;
  color: var(--accent);
}

.logo__text {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.logo__accent {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo__label {
  font-size: 12px;
  color: var(--text-dim);
  border-left: 1px solid var(--border);
  padding-left: 12px;
  margin-left: 2px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav__link {
  color: var(--text-dim);
  font-weight: 500;
  transition: color 0.2s;
}

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

.nav__link--cta {
  color: var(--accent);
}

/* ================= HERO ================= */
.hero {
  padding: 84px 0 70px;
  background:
    radial-gradient(ellipse at top left, rgba(139, 92, 246, 0.18), transparent 55%),
    radial-gradient(ellipse at top right, rgba(236, 72, 153, 0.14), transparent 55%),
    var(--bg);
}

.hero__inner {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
}

.hero__eyebrow {
  display: inline-block;
  font-size: 13px;
  color: var(--text-dim);
  letter-spacing: 0.5px;
  margin-bottom: 14px;
}

.hero__title {
  font-size: clamp(36px, 6vw, 60px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -1.5px;
  margin-bottom: 18px;
}

.hero__accent {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero__subtitle {
  font-size: 18px;
  color: var(--text-dim);
  max-width: 560px;
  margin-bottom: 28px;
}

.hero__actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 30px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s;
}

.btn--primary {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 6px 20px rgba(139, 92, 246, 0.35);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(139, 92, 246, 0.45);
}

.btn--ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn--ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn--success {
  background: var(--success);
  color: #fff;
}

.btn--danger {
  background: var(--danger);
  color: #fff;
}

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

.badge {
  font-size: 13px;
  color: var(--text-dim);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  padding: 8px 14px;
  border-radius: 999px;
}

.hero__visual .waveform {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 260px;
}

.waveform__bar {
  width: 22px;
  border-radius: 999px;
  background: var(--accent-gradient);
  opacity: 0.9;
  animation: pulse 1.6s ease-in-out infinite;
}

.waveform__bar:nth-child(2n) {
  animation-delay: 0.3s;
}

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

/* ================= HOW ================= */
.how {
  padding: 70px 0;
  background: var(--bg-soft);
}

.section__title {
  text-align: center;
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 8px;
}

.section__subtitle {
  text-align: center;
  color: var(--text-dim);
  font-size: 16px;
  margin-bottom: 44px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.step {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  position: relative;
  box-shadow: var(--shadow);
}

.step__num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent-gradient);
  color: #fff;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.step__title {
  font-size: 19px;
  margin-bottom: 8px;
}

.step__text {
  color: var(--text-dim);
  font-size: 15px;
}

/* ================= STUDIO ================= */
.studio {
  padding: 70px 0;
  background: var(--bg);
}

.studio__auth {
  text-align: center;
  color: var(--text-dim);
  margin-bottom: 20px;
}

.panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  margin-bottom: 20px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
  box-shadow: var(--shadow);
}

.panel__step {
  font-size: 22px;
  font-weight: 700;
  color: var(--accent);
  flex-shrink: 0;
}

.panel__body {
  flex: 1;
}

.panel__body h3 {
  margin-bottom: 16px;
  font-size: 20px;
}

.drop {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 34px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.drop:hover,
.drop.drag {
  border-color: var(--accent);
  background: rgba(139, 92, 246, 0.06);
}

.drop__hint {
  color: var(--text-dim);
  font-size: 13px;
  margin-top: 8px;
}

.link {
  background: none;
  border: none;
  color: var(--accent);
  font: inherit;
  cursor: pointer;
  text-decoration: underline;
}

.fileinfo {
  margin-top: 14px;
  padding: 14px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 14px;
}

.voice-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.recorder {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 16px;
  padding: 14px;
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 10px;
}

.recorder__status {
  color: var(--danger);
  font-weight: 600;
  animation: blink 1s steps(2, start) infinite;
}

@keyframes blink {
  to { visibility: hidden; }
}

.player-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}

.controls {
  display: grid;
  gap: 18px;
  max-width: 520px;
}

.control {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 6px 16px;
  align-items: center;
}

.control span {
  color: var(--text-dim);
  font-size: 14px;
  grid-column: 1 / -1;
}

.control input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

.control output {
  color: var(--accent);
  font-weight: 600;
  min-width: 40px;
  text-align: right;
}

/* Синтез вокала */
.synth__row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: flex-end;
  margin-bottom: 18px;
}

.synth__record-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.synth__row--pitch {
  margin-top: 8px;
  padding-top: 16px;
  border-top: 1px dashed var(--border);
  align-items: flex-end;
}

.model-pick {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.model-pick__label {
  font-size: 12px;
  opacity: 0.7;
}

.model-pick select {
  min-width: 200px;
}

.control--inline {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 160px;
}

.control--inline span {
  grid-column: auto;
  font-size: 13px;
  color: var(--text-dim);
}

.control--inline select,
.field textarea {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-size: 15px;
  outline: none;
  transition: border-color 0.2s;
  font-family: inherit;
}

.control--inline select:focus,
.field textarea:focus {
  border-color: var(--accent);
}

/* ================= STATUS BAR ================= */
.status-bar {
  margin-top: 20px;
  padding: 16px 20px;
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 1px solid var(--border);
}

.status-bar.error {
  border-color: var(--danger);
  color: var(--danger);
}

.status-bar.info {
  border-color: var(--accent);
}

/* ================= FOOTER ================= */
.footer {
  padding: 30px 0;
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--text-dim);
  font-size: 14px;
}

.footer__link {
  color: var(--accent);
  font-weight: 600;
}

.footer__link:hover {
  text-decoration: underline;
}

.footer__tagline {
  color: var(--text-dim);
}

/* ================= NAV BUTTON ================= */
.nav__btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}

.nav__btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.nav__link--btn {
  background: none;
  border: none;
  cursor: pointer;
  font: inherit;
  padding: 0;
}

/* ================= AUTH PANEL (studio) ================= */
.auth__actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin-top: 14px;
}

.auth__guest {
  color: var(--text-dim);
}

.auth__signed {
  color: var(--text-dim);
}

.auth__signed strong {
  color: var(--text);
}

.auth__badge {
  display: inline-block;
  padding: 2px 8px;
  margin-right: 6px;
  border-radius: 999px;
  background: var(--accent, #6c5ce7);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .4px;
  text-transform: uppercase;
}

/* ================= MODAL ================= */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(6, 8, 13, 0.8);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px;
  width: 100%;
  max-width: 420px;
}

.modal__close {
  position: absolute;
  top: 14px;
  right: 16px;
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
}

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

.modal__title {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 20px;
}

.field {
  display: block;
  margin-bottom: 16px;
}

.field span {
  display: block;
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.field input {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-size: 15px;
  outline: none;
  transition: border-color 0.2s;
}

.field input:focus {
  border-color: var(--accent);
}

.btn--block {
  width: 100%;
}

.auth__switch {
  margin-top: 16px;
  text-align: center;
  color: var(--text-dim);
  font-size: 14px;
}

.auth__error {
  margin-top: 16px;
  padding: 12px 14px;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 10px;
  color: var(--danger);
  font-size: 14px;
}

/* ================= MODAL WIDE / FIELDS ================= */
.modal--wide {
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
}

.field textarea,
.field select {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-size: 15px;
  outline: none;
  transition: border-color 0.2s;
  font-family: inherit;
}

.field textarea:focus,
.field select:focus {
  border-color: var(--accent);
}

.gen__price {
  color: var(--text-dim);
  font-size: 14px;
  margin-bottom: 14px;
}

.gen__status {
  margin-top: 16px;
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 14px;
}

.gen__status.info {
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid var(--accent);
}

.gen__status.ok {
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid var(--success);
}

.gen__status.error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid var(--danger);
}

.gen__balance {
  margin-top: 14px;
  color: var(--text-dim);
  font-size: 14px;
}

.gen__balance-inline {
  margin-top: 12px;
  color: var(--text-dim);
  font-size: 14px;
}

.panel__desc {
  color: var(--text-dim);
  font-size: 15px;
  margin-bottom: 16px;
}

/* ================= HISTORY ================= */
.history {
  padding: 70px 0;
  background: var(--bg-soft);
}

.history__tabs {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-bottom: 30px;
}

.history__tab {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}

.history__tab.is-active {
  border-color: var(--accent);
  color: var(--text);
}

.history__list {
  display: grid;
  gap: 16px;
  max-width: 760px;
  margin: 0 auto;
}

.history__empty {
  text-align: center;
  color: var(--text-dim);
  padding: 40px 0;
}

.history-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.history-item__info {
  flex: 1;
  min-width: 200px;
}

.history-item__title {
  font-weight: 700;
  font-size: 16px;
  margin-bottom: 4px;
}

.history-item__meta {
  color: var(--text-dim);
  font-size: 13px;
}

.history-item__actions {
  display: flex;
  gap: 10px;
  align-items: center;
}

.history-item .btn {
  padding: 8px 16px;
  font-size: 13px;
}

.badge-status {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  font-weight: 600;
}

.badge-status.ready,
.badge-status.done {
  background: rgba(34, 197, 94, 0.15);
  color: var(--success);
}

.badge-status.queued,
.badge-status.processing {
  background: rgba(139, 92, 246, 0.15);
  color: var(--accent);
}

.badge-status.failed {
  background: rgba(239, 68, 68, 0.15);
  color: var(--danger);
}

/* ================= RESPONSIVE ================= */
@media (max-width: 900px) {
  .hero__inner {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .steps {
    grid-template-columns: 1fr;
  }
  .logo__label {
    display: none;
  }
}

/* ================= TABS (озвучка / песня) ================= */
.tabs {
  display: flex;
  gap: 8px;
  margin: 18px 0 14px;
  border-bottom: 1px solid var(--border, #2a2d35);
  padding-bottom: 0;
}

.tabs__btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid transparent;
  border-bottom: none;
  border-radius: 10px 10px 0 0;
  background: transparent;
  color: var(--text-dim, #9aa0aa);
  font: inherit;
  font-size: 14px;
  cursor: pointer;
  transition: color .15s, background .15s;
}

.tabs__btn:hover {
  color: var(--text, #e6e8ec);
  background: rgba(255, 255, 255, .03);
}

.tabs__btn--active {
  color: var(--text, #e6e8ec);
  background: rgba(255, 255, 255, .05);
  border-color: var(--border, #2a2d35);
  box-shadow: 0 1px 0 0 rgba(255, 255, 255, .05);
}

.tab-pane {
  margin-top: 14px;
}