:root {
  --bg: #0a0b0d;
  --card: #15171a;
  --card-2: #1b1e22;
  --text: #f2f3f5;
  --muted: #9aa1aa;
  --accent: #66d6bd;
  --border: #262a30;
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Manrope", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.bg {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 30% 20%, rgba(102, 214, 189, 0.16), transparent 40%),
    radial-gradient(circle at 70% 10%, rgba(255, 255, 255, 0.06), transparent 45%);
  pointer-events: none;
  z-index: 0;
}

.site-header {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px clamp(16px, 6vw, 80px);
  border-bottom: 1px solid var(--border);
  background: rgba(10, 11, 13, 0.9);
  backdrop-filter: blur(8px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  letter-spacing: 0.3px;
  font-family: "Space Grotesk", sans-serif;
}

.brand-icon {
  color: var(--accent);
}

.lang-switch {
  display: flex;
  gap: 8px;
}

.lang-btn {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: 999px;
  cursor: pointer;
}

.lang-btn.active {
  color: var(--text);
  border-color: var(--accent);
}

.site-main {
  position: relative;
  z-index: 1;
  padding: 32px clamp(16px, 6vw, 80px) 50px;
  display: grid;
  gap: 22px;
}

.hero {
  text-align: center;
  max-width: 760px;
  margin: 0 auto;
}

.hero h1 {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  margin: 0 0 8px;
  font-family: "Space Grotesk", sans-serif;
}

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

.tabs {
  display: flex;
  justify-content: center;
  gap: 10px;
}

.tab {
  background: var(--card);
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 600;
}

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

.search {
  display: grid;
  gap: 8px;
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}

.tool-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
}

.field {
  position: relative;
}

.field-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
}

.field input {
  width: 100%;
  padding: 14px 14px 14px 38px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(21, 23, 26, 0.8);
  color: var(--text);
  font-size: 1rem;
}

.primary {
  border: none;
  border-radius: 12px;
  padding: 12px 20px;
  cursor: pointer;
  font-weight: 600;
  background: #2a2e33;
  color: var(--text);
  min-width: 140px;
}

.hint,
.cooldown {
  color: var(--muted);
  font-size: 0.85rem;
}

.panel {
  max-width: 980px;
  margin: 0 auto;
  display: grid;
  gap: 12px;
}

.tools h2,
.email h2 {
  margin: 0;
  text-align: center;
  font-family: "Space Grotesk", sans-serif;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.tool-card {
  text-align: left;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 10px;
  align-items: center;
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease;
  color: var(--text);
}

.tool-card.active {
  border-color: rgba(102, 214, 189, 0.6);
}

.tool-card:hover {
  transform: translateY(-2px);
  border-color: rgba(102, 214, 189, 0.5);
}

.tool-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--card-2);
  display: grid;
  place-items: center;
  color: var(--accent);
  font-size: 1.1rem;
}

.tool-title {
  font-weight: 600;
}

.tool-desc {
  color: var(--muted);
  font-size: 0.82rem;
}

.tool-arrow {
  color: var(--muted);
}

.result-panel {
  max-width: 980px;
  margin: 0 auto;
}

.result {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  min-height: 80px;
  color: var(--text);
  font-size: 0.9rem;
  overflow-x: auto;
}

.result pre {
  margin: 0;
  white-space: pre-wrap;
}

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

.result-table th,
.result-table td {
  border-bottom: 1px solid var(--border);
  padding: 8px 6px;
  text-align: left;
  vertical-align: top;
}

.result-table th {
  color: var(--muted);
  font-weight: 500;
}

.block {
  margin-bottom: 12px;
}

.features {
  max-width: 980px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  text-align: center;
}

.feature {
  display: grid;
  gap: 8px;
  justify-items: center;
  padding: 8px;
}

.feature-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--card-2);
  display: grid;
  place-items: center;
  color: var(--accent);
}

.feature-title {
  font-weight: 600;
}

.feature-desc {
  color: var(--muted);
  font-size: 0.82rem;
}

.seo {
  max-width: 980px;
  margin: 0 auto;
  display: grid;
  gap: 12px;
}

.seo-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  color: var(--muted);
  line-height: 1.7;
}

.seo-card h2 {
  margin: 0 0 8px;
  color: var(--text);
  font-family: "Space Grotesk", sans-serif;
}

.seo-list {
  margin: 12px 0;
  padding-left: 18px;
  display: grid;
  gap: 6px;
}

.seo-list li {
  color: var(--muted);
}

.is-hidden {
  display: none;
}

.site-footer {
  position: relative;
  z-index: 1;
  padding: 20px clamp(16px, 6vw, 80px) 34px;
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 0.9rem;
  border-top: 1px solid var(--border);
}

@media (max-width: 700px) {
  .tool-form {
    grid-template-columns: 1fr;
  }

  .primary {
    width: 100%;
  }

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

  .site-footer {
    flex-direction: column;
    gap: 8px;
  }
}

@media (max-width: 1100px) {
  .tool-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 700px) {
  .tool-grid {
    grid-template-columns: 1fr;
  }
}