/* ─── Tool Page Layout ───────────────────────────────────── */
.tool-page {
  max-width: 760px;
  margin: 0 auto;
  padding: 2.5rem 2rem 5rem;
}

.tool-header {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: var(--border);
}

.tool-title {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--t1);
  margin: 0.6rem 0 0.5rem;
}

.tool-subtitle {
  font-size: 0.8rem;
  color: var(--t3);
  line-height: 1.6;
  font-style: italic;
}

/* ─── Mode Toggle ────────────────────────────────────────── */
.mode-toggle {
  display: inline-flex;
  background: var(--s1);
  border: var(--border);
  border-radius: var(--radius);
  padding: 2px;
  gap: 2px;
  margin-bottom: 1.2rem;
}

.mode-btn {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.35rem 0.9rem;
  border-radius: 2px;
  border: none;
  background: transparent;
  color: var(--t3);
  cursor: pointer;
  transition: background 0.12s, color 0.12s;
}

.mode-btn.active.net { background: var(--c-net-dim); color: var(--c-net); }
.mode-btn.active.enc { background: var(--c-enc-dim); color: var(--c-enc); }
.mode-btn.active.gen { background: var(--c-gen-dim); color: var(--c-gen); }
.mode-btn.active.dev { background: var(--c-dev-dim); color: var(--c-dev); }
.mode-btn:not(.active):hover { color: var(--t2); }

/* ─── Form Elements ──────────────────────────────────────── */
.tool-label {
  display: block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--t3);
  margin-bottom: 0.45rem;
}

.tool-input,
.tool-textarea,
.tool-select {
  width: 100%;
  background: var(--s1);
  border: var(--border);
  border-radius: var(--radius);
  color: var(--t1);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.85rem;
  transition: border-color 0.12s, box-shadow 0.12s;
  outline: none;
}

.tool-input    { padding: 0.65rem 0.9rem; }
.tool-textarea { padding: 0.8rem 0.9rem; min-height: 140px; resize: vertical; line-height: 1.6; }
.tool-select   {
  padding: 0.65rem 0.9rem;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%233d5c3d' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.9rem center;
  padding-right: 2.2rem;
}

.tool-input:focus,
.tool-textarea:focus,
.tool-select:focus {
  border-color: rgba(74,222,128,0.25);
  box-shadow: 0 0 0 2px rgba(74,222,128,0.06);
}

/* Category-colored focus */
.page-net .tool-input:focus,
.page-net .tool-textarea:focus,
.page-net .tool-select:focus { border-color: rgba(34,211,238,0.35); box-shadow: 0 0 0 2px rgba(34,211,238,0.06); }

.page-enc .tool-input:focus,
.page-enc .tool-textarea:focus,
.page-enc .tool-select:focus { border-color: rgba(192,132,252,0.35); box-shadow: 0 0 0 2px rgba(192,132,252,0.06); }

.page-gen .tool-input:focus,
.page-gen .tool-textarea:focus,
.page-gen .tool-select:focus { border-color: rgba(251,191,36,0.35); box-shadow: 0 0 0 2px rgba(251,191,36,0.06); }

.page-dev .tool-input:focus,
.page-dev .tool-textarea:focus,
.page-dev .tool-select:focus { border-color: rgba(251,113,133,0.35); box-shadow: 0 0 0 2px rgba(251,113,133,0.06); }

.tool-input::placeholder,
.tool-textarea::placeholder { color: var(--t3); font-style: italic; }

/* ─── Controls Row ───────────────────────────────────────── */
.controls-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-top: 0.75rem;
}

.controls-row .tool-select { width: auto; flex-shrink: 0; }

/* ─── Run Button ─────────────────────────────────────────── */
.run-btn {
  font-family: 'IBM Plex Mono', monospace;
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.65rem 1.4rem;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: opacity 0.12s, transform 0.12s;
  flex-shrink: 0;
}

.run-btn:hover   { opacity: 0.85; }
.run-btn:active  { transform: scale(0.97); }
.run-btn:disabled { opacity: 0.35; cursor: not-allowed; }

.run-btn.net { background: var(--c-net); color: #0c0e0c; }
.run-btn.enc { background: var(--c-enc); color: #0c0e0c; }
.run-btn.gen { background: var(--c-gen); color: #0c0e0c; }
.run-btn.dev { background: var(--c-dev); color: #0c0e0c; }

.run-btn .spinner {
  width: 12px; height: 12px;
  border: 2px solid rgba(0,0,0,0.25);
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: none;
}
.run-btn.loading .btn-label { display: none; }
.run-btn.loading .spinner    { display: block; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── Divider ────────────────────────────────────────────── */
.tool-divider {
  margin: 1.5rem 0;
  height: 1px;
  background: rgba(74,222,128,0.06);
}

/* ─── Output Box ─────────────────────────────────────────── */
.output-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.output-box {
  background: var(--s1);
  border: var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--t2);
  min-height: 100px;
  max-height: 400px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-all;
  position: relative;
}

.output-box.empty {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--t3);
  font-size: 0.78rem;
  font-style: italic;
}

.output-box.error { border-color: rgba(251,113,133,0.25); color: var(--c-dev); }

/* Copy button */
.copy-btn {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.25rem 0.6rem;
  border-radius: 2px;
  border: var(--border);
  background: var(--s2);
  color: var(--t3);
  cursor: pointer;
  transition: color 0.12s, border-color 0.12s;
}

.copy-btn:hover { color: var(--green); border-color: rgba(74,222,128,0.2); }
.copy-btn.copied { color: var(--green); }

/* ─── Result Table ───────────────────────────────────────── */
.result-table {
  width: 100%;
  border-collapse: collapse;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.78rem;
}

.result-table th {
  text-align: left;
  color: var(--t3);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.62rem;
  padding: 0.4rem 0.8rem;
  border-bottom: var(--border);
}

.result-table td {
  padding: 0.5rem 0.8rem;
  color: var(--t2);
  border-bottom: 1px solid rgba(74,222,128,0.04);
  word-break: break-all;
}

.result-table td:first-child { color: var(--t3); width: 120px; }
.result-table tr:last-child td { border-bottom: none; }

/* ─── Slider ─────────────────────────────────────────────── */
.slider-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.slider-label { color: var(--t2); font-size: 0.82rem; flex: 1; }
.slider-value {
  font-size: 0.82rem;
  color: var(--c-gen);
  min-width: 2.5rem;
  text-align: right;
}

input[type="range"] {
  -webkit-appearance: none;
  width: 160px;
  height: 3px;
  background: var(--s3);
  border-radius: 0;
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px; height: 14px;
  border-radius: 2px;
  background: var(--c-gen);
  cursor: pointer;
  border: 2px solid var(--s0);
  transition: transform 0.12s;
}

input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.2); }

/* Checkboxes */
.check-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 0.5rem;
  margin-bottom: 1.2rem;
}

.check-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  color: var(--t2);
  cursor: pointer;
  padding: 0.45rem 0.75rem;
  background: var(--s1);
  border: var(--border);
  border-radius: var(--radius);
  transition: background 0.12s, border-color 0.12s;
  user-select: none;
}

.check-label:hover { background: var(--s2); border-color: rgba(74,222,128,0.15); }
.check-label input[type="checkbox"] { width: 13px; height: 13px; accent-color: var(--green); cursor: pointer; }

/* ─── Big Output ─────────────────────────────────────────── */
.big-output {
  background: var(--s1);
  border: var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.95rem;
  color: var(--t1);
  letter-spacing: 0.03em;
  word-break: break-all;
  min-height: 60px;
  line-height: 1.6;
}

/* ─── Info Card ──────────────────────────────────────────── */
.info-card {
  background: var(--s1);
  border: var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.info-row {
  display: flex;
  padding: 0.7rem 1.1rem;
  border-bottom: 1px solid rgba(74,222,128,0.04);
  gap: 1rem;
  align-items: baseline;
}

.info-row:last-child { border-bottom: none; }

.info-key {
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--t3);
  flex-shrink: 0;
  width: 110px;
}

.info-val {
  font-size: 0.82rem;
  color: var(--t2);
  word-break: break-all;
}

.info-val.highlight {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--t1);
  letter-spacing: -0.01em;
}

/* ─── Loading ────────────────────────────────────────────── */
.loading-shimmer {
  background: linear-gradient(90deg, var(--s1) 25%, var(--s2) 50%, var(--s1) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s ease infinite;
  border-radius: 2px;
  height: 1rem;
  margin: 0.4rem 0;
}

@keyframes shimmer {
  from { background-position: 200% 0; }
  to   { background-position: -200% 0; }
}

/* ─── Carbon Ads ─────────────────────────────────────────── */
.carbon-wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 2rem 2rem;
}

#carbonads {
  display: flex;
  background: var(--s1);
  border: var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  font-size: 0.78rem;
  line-height: 1.4;
}

#carbonads a { color: var(--t2); text-decoration: none; }
#carbonads a:hover { color: var(--t1); }

.carbon-wrap .carbon-img img { display: block; width: 130px; height: 100px; object-fit: cover; flex-shrink: 0; }
.carbon-wrap .carbon-text { padding: 0.75rem 1rem; flex: 1; color: var(--t2); }
.carbon-wrap .carbon-poweredby {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.58rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--t3);
}