:root {
  --bg-0: #040507;
  --bg-1: #0a0f1a;
  --text-main: #edf1ff;
  --text-soft: #a8b4d7;
  --accent: #6be6c1;
  --accent-2: #7ea3ff;
  --danger: #ff6f8f;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  width: 100%;
  min-height: 100%;
  color: var(--text-main);
  font-family: "Space Grotesk", sans-serif;
  background:
    radial-gradient(circle at 82% 8%, rgba(126, 163, 255, 0.2), transparent 40%),
    radial-gradient(circle at 14% 2%, rgba(107, 230, 193, 0.15), transparent 33%),
    linear-gradient(180deg, var(--bg-1), var(--bg-0));
  overflow-x: hidden;
}

body {
  padding: 20px 16px 40px;
}

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.07;
  background-image: radial-gradient(rgba(255, 255, 255, 0.28) 1px, transparent 1px);
  background-size: 4px 4px;
  mix-blend-mode: soft-light;
}

.stars {
  position: fixed;
  inset: -12%;
  pointer-events: none;
  will-change: transform;
  backface-visibility: hidden;
  transform: translate3d(0, 0, 0);
}

.star {
  position: absolute;
  width: var(--size);
  height: var(--size);
  left: var(--x);
  top: var(--y);
  border-radius: 999px;
  background: rgba(255, 255, 255, var(--alpha));
  box-shadow: 0 0 8px rgba(255, 255, 255, 0.55);
  animation: twinkle var(--twinkle) ease-in-out infinite;
  animation-delay: var(--delay);
}

.shell {
  position: relative;
  z-index: 2;
  max-width: 760px;
  margin: 0 auto;
}

.topbar {
  display: grid;
  grid-template-columns: 42px 1fr auto;
  align-items: center;
  margin-bottom: 24px;
  gap: 12px;
}

.brand {
  text-align: center;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-soft);
  font-size: 0.78rem;
}

.icon-btn,
.ghost-btn,
.close-btn {
  border: 0;
  background: transparent;
  color: var(--text-main);
  cursor: pointer;
  font-family: "IBM Plex Mono", monospace;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.icon-btn,
.close-btn {
  font-size: 1.5rem;
  opacity: 0.85;
  line-height: 1;
}

.ghost-btn {
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  opacity: 0.9;
}

.icon-btn:hover,
.ghost-btn:hover,
.close-btn:hover {
  opacity: 1;
  transform: translateY(-1px);
}

.hero h1 {
  margin: 0;
  font-size: clamp(2rem, 7vw, 3.2rem);
  line-height: 0.95;
  font-weight: 700;
}

.hero p {
  margin: 12px 0 0;
  font-size: 1rem;
  color: var(--text-soft);
}

.editor {
  margin-top: 30px;
}

textarea {
  width: 100%;
  min-height: 180px;
  resize: vertical;
  border: 0;
  background: transparent;
  color: var(--text-main);
  font-size: 1rem;
  line-height: 1.6;
  font-family: "Space Grotesk", sans-serif;
  padding: 2px 0;
  outline: none;
}

textarea::placeholder {
  color: rgba(168, 180, 215, 0.58);
}

.controls {
  margin-top: 18px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.voice-btn,
.primary-btn {
  border: 0;
  color: var(--text-main);
  background: transparent;
  font-family: "Space Grotesk", sans-serif;
  cursor: pointer;
}

.voice-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 0;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.pulse {
  width: 11px;
  height: 11px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 rgba(107, 230, 193, 0.7);
  animation: pulse 1.8s infinite;
}

.voice-btn.recording .pulse {
  background: var(--danger);
  animation: pulseDanger 1s infinite;
}

.primary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  min-width: 112px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  position: relative;
}

.primary-btn::after {
  content: "";
  position: absolute;
  left: -2px;
  right: -2px;
  bottom: -2px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-2), transparent);
  animation: scanline 2.2s infinite;
}

.meta {
  margin-top: 22px;
  display: grid;
  gap: 6px;
}

.muted {
  color: var(--text-soft);
  font-size: 0.9rem;
}

.status {
  min-height: 20px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.8rem;
  color: var(--accent);
}

.result {
  margin-top: 26px;
  animation: fadeIn 0.5s ease;
}

.result h2,
.result h3 {
  margin: 0 0 10px;
  font-size: 1.1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(237, 241, 255, 0.95);
}

.result h3 {
  margin-top: 26px;
}

.result p {
  margin: 0;
  white-space: pre-wrap;
  line-height: 1.75;
  color: rgba(237, 241, 255, 0.92);
}

.panel {
  position: fixed;
  left: 14px;
  right: 14px;
  bottom: 14px;
  border-radius: 24px;
  padding: 20px 16px 18px;
  z-index: 30;
  background: rgba(8, 12, 19, 0.86);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  animation: panelIn 0.28s ease;
}

.settings-panel label {
  display: block;
  color: var(--text-soft);
  margin-bottom: 8px;
}

.settings-panel select {
  width: 100%;
  border: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  background: transparent;
  color: var(--text-main);
  padding: 6px 0;
  font-size: 1rem;
  outline: none;
}

.panel h4 {
  margin: 0 0 14px;
  font-size: 1.2rem;
}

.tariff-panel {
  padding-top: 22px;
}

.plans-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.plan-card {
  position: relative;
  border-radius: 18px;
  padding: 16px 14px 14px;
  min-height: 248px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow: hidden;
  background:
    radial-gradient(circle at 0% 0%, rgba(255, 255, 255, 0.08), transparent 36%),
    rgba(9, 14, 22, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.plan-card::before {
  content: "";
  position: absolute;
  inset: -48% 56% auto -32%;
  height: 200px;
  border-radius: 999px;
  opacity: 0.55;
  pointer-events: none;
}

.free-card {
  border-color: rgba(92, 186, 255, 0.66);
  box-shadow:
    0 0 0 1px rgba(92, 186, 255, 0.12) inset,
    0 0 26px rgba(92, 186, 255, 0.2);
}

.free-card::before {
  background: radial-gradient(circle, rgba(77, 182, 255, 0.56), transparent 70%);
}

.pro-card {
  border-color: rgba(255, 214, 126, 0.75);
  box-shadow:
    0 0 0 1px rgba(255, 219, 145, 0.2) inset,
    0 0 30px rgba(255, 194, 76, 0.24);
}

.pro-card::before {
  background: radial-gradient(circle, rgba(255, 201, 87, 0.64), transparent 72%);
}

.plan-card.active {
  transform: translateY(-2px);
}

.plan-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
}

.plan-name {
  font-size: 1.08rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-weight: 700;
}

.plan-price {
  margin-top: 4px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  color: rgba(236, 243, 255, 0.9);
}

.plan-badge {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 5px 8px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.26);
  color: rgba(255, 255, 255, 0.9);
  background: rgba(255, 255, 255, 0.06);
}

.plan-desc {
  margin: 0;
  color: rgba(236, 243, 255, 0.88);
  line-height: 1.4;
  font-size: 0.95rem;
}

.plan-features {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.plan-features li {
  color: rgba(236, 243, 255, 0.9);
  font-size: 0.92rem;
  line-height: 1.4;
  padding-left: 13px;
  position: relative;
}

.plan-features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 5px;
  height: 5px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.8);
}

.plan-cta {
  margin-top: auto;
  width: 100%;
  border: 1px solid rgba(255, 215, 120, 0.58);
  background: linear-gradient(
    90deg,
    rgba(255, 198, 88, 0.16),
    rgba(255, 222, 142, 0.26),
    rgba(255, 198, 88, 0.16)
  );
  color: #ffe9b6;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: 12px;
  padding: 11px 12px;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.plan-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 18px rgba(255, 201, 92, 0.36);
}

.plan-cta:disabled {
  opacity: 0.72;
  cursor: default;
  transform: none;
  box-shadow: none;
}

.close-btn {
  position: absolute;
  right: 14px;
  top: 10px;
}

.hidden {
  display: none;
}

.rise-1,
.rise-2,
.rise-3,
.rise-4 {
  opacity: 0;
  animation: rise 0.8s forwards;
}

.rise-2 {
  animation-delay: 0.1s;
}

.rise-3 {
  animation-delay: 0.2s;
}

.rise-4 {
  animation-delay: 0.3s;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes twinkle {
  0%,
  100% {
    transform: scale(0.95);
    opacity: 0.3;
  }
  50% {
    transform: scale(1.25);
    opacity: 0.92;
  }
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(107, 230, 193, 0.55);
  }
  70% {
    box-shadow: 0 0 0 8px rgba(107, 230, 193, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(107, 230, 193, 0);
  }
}

@keyframes pulseDanger {
  0% {
    box-shadow: 0 0 0 0 rgba(255, 111, 143, 0.6);
  }
  70% {
    box-shadow: 0 0 0 8px rgba(255, 111, 143, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(255, 111, 143, 0);
  }
}

@keyframes scanline {
  0% {
    opacity: 0.2;
    transform: translateX(-4px);
  }
  50% {
    opacity: 0.95;
    transform: translateX(4px);
  }
  100% {
    opacity: 0.2;
    transform: translateX(-4px);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes panelIn {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 760px) {
  .tariff-panel {
    left: 50%;
    right: auto;
    width: min(860px, calc(100vw - 28px));
    transform: translateX(-50%);
  }

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

@media (min-width: 850px) {
  body {
    padding-top: 30px;
  }

  textarea {
    min-height: 210px;
    font-size: 1.06rem;
  }

  .settings-panel {
    left: 50%;
    right: auto;
    width: 460px;
    transform: translateX(-50%);
  }
}