:root {
  --bg-a: #f2f2f2;
  --bg-b: #c6c6c6;
  --bg-decor-a: rgba(17, 255, 0, 0.28);
  --bg-decor-b: rgba(29, 45, 0, 0.3);
  --surface: #ffffff;
  --surface-2: #f3f5f1;
  --text: #0a0a0a;
  --content: #111111;
  --muted: #2a3b00;
  --line: #a8b189;
  --accent: #1d2d00;
  --accent-strong: #0a0a0a;
  --accent-soft: rgba(29, 45, 0, 0.16);
  --toggle-bg: linear-gradient(180deg, #ffffff, #e8e8e8);
  --input-bg: #fbfbfb;
  --focus-ring: rgba(29, 45, 0, 0.2);
  --button-text-inverse: #f2f2f2;
  --button-text: #1b2500;
  --good: #128e00;
  --warn: #3a4f04;
  --bad: #0a0a0a;
  --shadow: 0 18px 45px rgba(10, 10, 10, 0.12);
  --shadow-accent: 0 10px 24px rgba(29, 45, 0, 0.28);
  --radius: 16px;
}

:root[data-theme="dark"] {
  --bg-a: #000000;
  --bg-b: #1d2d00;
  --bg-decor-a: rgba(17, 255, 0, 0.18);
  --bg-decor-b: rgba(198, 198, 198, 0.08);
  --surface: #121800;
  --surface-2: #0f1400;
  --text: #e6e6e6;
  --content: #f2f2f2;
  --muted: #c6c6c6;
  --line: #35480a;
  --accent: #11ff00;
  --accent-strong: #7dff65;
  --accent-soft: rgba(17, 255, 0, 0.16);
  --toggle-bg: linear-gradient(180deg, #1d2d00, #121800);
  --input-bg: #0a0e00;
  --focus-ring: rgba(17, 255, 0, 0.22);
  --button-text-inverse: #0a0a0a;
  --button-text: #d8e8bf;
  --good: #5dff43;
  --warn: #c6c6c6;
  --bad: #8f9892;
  --shadow: 0 18px 45px rgba(0, 0, 0, 0.45);
  --shadow-accent: 0 10px 24px rgba(17, 255, 0, 0.2);
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Orbitron", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(
      1200px 500px at 10% -5%,
      var(--bg-decor-a) 0%,
      transparent 60%
    ),
    radial-gradient(
      900px 420px at 100% 0%,
      var(--bg-decor-b) 0%,
      transparent 62%
    ),
    linear-gradient(140deg, var(--bg-a), var(--bg-b));
  padding: 36px 20px 48px;
}

.app {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  gap: 18px;
}

.panel {
  background: transparent;

  overflow: hidden;
}

.hero {
  padding: 26px 24px 18px;
  display: grid;
  gap: 10px;
}

.title-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-logo {
  width: 44px;
  height: 44px;
  object-fit: contain;
  border-radius: 10px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.24);
  background: var(--surface-2);
  border: 1px solid var(--line);
  flex: 0 0 auto;
}

h1 {
  margin: 0;
  font-family: "Orbitron", "Segoe UI", sans-serif;
  font-weight: 700;
  font-size: clamp(1.5rem, 1.4rem + 1.2vw, 2.1rem);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.subtitle {
  margin: 0;
  font-family: "Orbitron", "Segoe UI", sans-serif;
  font-weight: 400;
  color: var(--muted);
  font-size: 0.98rem;
  max-width: 40ch;
}

.controls {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.lang-toggle,
.theme-toggle {
  border: 1px solid var(--line);
  background: var(--toggle-bg);
  border-radius: 999px;
  padding: 4px;
  display: inline-flex;
  gap: 4px;
}

.lang-btn,
.theme-btn {
  border: 0;
  cursor: pointer;
  border-radius: 999px;
  padding: 8px 14px;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.01em;
  color: var(--button-text);
  background: transparent;
  transition: all 0.2s ease;
}

.lang-btn:not(.active),
.theme-btn:not(.active) {
  background: color-mix(in srgb, var(--surface-2) 90%, white 10%);
}

.lang-btn.active,
.theme-btn.active {
  background: var(--accent);
  color: var(--button-text-inverse);
  box-shadow: var(--shadow-accent);
}

.workspace {
  padding: 18px 20px 22px;
  display: grid;
  gap: 14px;
}

.flow-grid {
  display: grid;
  gap: 14px;
}

.zone-card {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px;
  display: grid;
  gap: 12px;
}

.compose-zone {
  background: linear-gradient(
    180deg,
    color-mix(in srgb, var(--surface-2) 72%, transparent),
    color-mix(in srgb, var(--surface) 94%, transparent)
  );
}

.results-zone {
  background: linear-gradient(
    180deg,
    color-mix(in srgb, var(--surface) 88%, transparent),
    color-mix(in srgb, var(--surface-2) 82%, transparent)
  );
}

.zone-title {
  margin: 0;
  font-family: "Orbitron", "Segoe UI", sans-serif;
  font-size: 0.92rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--muted);
  opacity: 0.9;
}

label {
  font-family: "Orbitron", "Segoe UI", sans-serif;
  font-size: 0.92rem;
  font-weight: 600;
}

.advanced {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.field {
  display: grid;
  gap: 6px;
}

.field-inline {
  align-content: start;
}

.check-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

input[type="text"],
select {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--input-bg);
  color: var(--text);
  font:
    400 0.9rem/1.4 "Orbitron",
    "Segoe UI",
    sans-serif;
  padding: 9px 10px;
  outline: none;
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease,
    opacity 0.2s ease;
}

input[type="text"]:focus,
select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--focus-ring);
}

input[type="checkbox"] {
  accent-color: var(--accent);
}

input:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

textarea {
  width: 100%;
  min-height: 270px;
  resize: vertical;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--input-bg);
  color: var(--text);
  font:
    400 1rem/1.6 "Orbitron",
    "Segoe UI",
    sans-serif;
  padding: 16px;
  outline: none;
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--focus-ring);
}

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

.btn {
  border: 0;
  cursor: pointer;
  border-radius: 12px;
  padding: 11px 16px;
  font-family: "Orbitron", "Segoe UI", sans-serif;
  font-weight: 700;
  font-size: 0.96rem;
  letter-spacing: 0.01em;
  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease,
    opacity 0.18s ease;
}

.btn-primary {
  color: var(--button-text-inverse);
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  box-shadow: var(--shadow-accent);
}

.btn-secondary {
  color: var(--button-text);
  background: var(--surface-2);
  border: 1px solid var(--line);
}

.btn:hover {
  transform: translateY(-1px);
}
.btn:active {
  transform: translateY(0);
}

.cards {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px;
  background: linear-gradient(180deg, var(--surface), var(--surface-2));
  display: grid;
  gap: 10px;
  opacity: 0;
  transform: translateY(10px);
  animation: rise 0.45s ease forwards;
}

.card:nth-child(2) {
  animation-delay: 0.05s;
}
.card:nth-child(3) {
  animation-delay: 0.1s;
}
.card:nth-child(4) {
  animation-delay: 0.15s;
}

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

.card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.card h3 {
  margin: 0;
  font-family: "Orbitron", "Segoe UI", sans-serif;
  font-weight: 600;
  font-size: 0.98rem;
  letter-spacing: 0.01em;
}

.copy-btn {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--button-text);
  border-radius: 10px;
  padding: 7px 10px;
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: all 0.2s ease;
}

.copy-btn:hover {
  color: var(--accent-strong);
  border-color: var(--accent);
  background: var(--accent-soft);
}

.content {
  margin: 0;
  font-family: "Orbitron", "Segoe UI", sans-serif;
  color: var(--content);
  line-height: 1.55;
  font-size: 0.94rem;
  white-space: pre-wrap;
  word-break: break-word;
}

.meta {
  margin-top: 2px;
  font-family: "Orbitron", "Segoe UI", sans-serif;
  font-size: 0.8rem;
  color: var(--muted);
  font-weight: 600;
}

.counter {
  font-weight: 800;
}
.counter.good {
  color: var(--good);
}
.counter.warn {
  color: var(--warn);
}
.counter.bad {
  color: var(--bad);
}

.footer-note {
  font-family: "Orbitron", "Segoe UI", sans-serif;
  color: var(--muted);
  font-size: 0.84rem;
}

.score-big {
  margin: 0;
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  color: var(--accent);
}

@media (max-width: 860px) {
  .cards {
    grid-template-columns: 1fr;
  }
  body {
    padding: 20px 14px 30px;
  }
  .hero {
    padding: 20px 16px 14px;
  }
  .workspace {
    padding: 14px;
  }
  .advanced {
    grid-template-columns: 1fr;
  }
  textarea {
    min-height: 230px;
  }
  .brand-logo {
    width: 38px;
    height: 38px;
  }
}