/* ── SHARED TOOL STYLES ─────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --orange: #FF6B00;
  --orange-dark: #e05e00;
  --orange-light: #FFF0E5;
  --orange-mid: #FFD9B8;
  --bg: #FAF7F4;
  --white: #FFFFFF;
  --text: #1A1A1A;
  --text-soft: #6B6B6B;
  --border: #EDE8E2;
  --radius: 16px;
  --shadow: 0 2px 16px rgba(255,107,0,.08);
  --green: #16a34a;
  --green-light: #dcfce7;
  --green-border: #86efac;
  --blue: #2563eb;
  --blue-light: #eff6ff;
  --blue-border: #bfdbfe;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── Header ── */
.tool-header {
  background: var(--orange);
  padding: 22px 24px 34px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.tool-header::before {
  content: '';
  position: absolute;
  right: -60px; top: -60px;
  width: 260px; height: 260px;
  background: rgba(255,255,255,.07);
  border-radius: 50%;
}
.tool-header::after {
  content: '';
  position: absolute;
  left: -40px; bottom: -80px;
  width: 200px; height: 200px;
  background: rgba(255,255,255,.05);
  border-radius: 50%;
}
.header-badge {
  display: inline-block;
  background: rgba(255,255,255,.18);
  color: #fff;
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 10px;
}
.tool-header h1 {
  color: #fff;
  font-size: clamp(1.25rem, 4vw, 1.85rem);
  font-weight: 800;
  line-height: 1.2;
  position: relative;
}
.tool-header p {
  color: rgba(255,255,255,.85);
  font-size: .9rem;
  margin-top: 6px;
  position: relative;
}

/* ── Layout ── */
main {
  max-width: 760px;
  margin: 0 auto;
  padding: 28px 16px 60px;
}

/* ── Card ── */
.card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  padding: 24px;
  margin-bottom: 18px;
}
.card-title {
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 16px;
}

/* ── Fields ── */
.field-row   { display: grid; grid-template-columns: 1fr 1fr;     gap: 14px; }
.field-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; }
@media (max-width: 540px) { .field-row-3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .field-row,  .field-row-3 { grid-template-columns: 1fr; } }

.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: .82rem; font-weight: 600; color: var(--text-soft); }
.field label .opt { font-weight: 400; }

.input-wrap { position: relative; }
.input-wrap input[type="number"],
.input-wrap input[type="text"] {
  width: 100%;
  padding: 11px 52px 11px 14px;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  font-size: 1rem;
  font-family: inherit;
  font-weight: 600;
  color: var(--text);
  background: #FAFAFA;
  transition: border-color .18s, box-shadow .18s;
  -moz-appearance: textfield;
}
.input-wrap input::-webkit-inner-spin-button,
.input-wrap input::-webkit-outer-spin-button { -webkit-appearance: none; }
.input-wrap input:focus {
  outline: none;
  border-color: var(--orange);
  box-shadow: 0 0 0 3px rgba(255,107,0,.13);
  background: #fff;
}
.input-unit {
  position: absolute;
  right: 12px; top: 50%;
  transform: translateY(-50%);
  font-size: .78rem;
  font-weight: 700;
  color: var(--text-soft);
  pointer-events: none;
}

.select-wrap select {
  width: 100%;
  padding: 11px 36px 11px 14px;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  font-size: .92rem;
  font-family: inherit;
  font-weight: 600;
  color: var(--text);
  background: #FAFAFA;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236B6B6B' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  transition: border-color .18s;
}
.select-wrap select:focus {
  outline: none;
  border-color: var(--orange);
  box-shadow: 0 0 0 3px rgba(255,107,0,.13);
}

/* ── Slider ── */
.slider-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.slider-label  { font-size: .82rem; font-weight: 600; color: var(--text-soft); }
.slider-value  { font-size: 1.05rem; font-weight: 800; color: var(--orange); background: var(--orange-light); padding: 2px 10px; border-radius: 8px; }
input[type="range"] {
  -webkit-appearance: none;
  width: 100%; height: 6px; border-radius: 3px; outline: none; cursor: pointer;
  background: linear-gradient(to right, var(--orange) 0%, var(--orange) var(--range-pct,0%), var(--border) var(--range-pct,0%), var(--border) 100%);
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px; height: 20px; border-radius: 50%;
  background: var(--orange); border: 3px solid #fff;
  box-shadow: 0 1px 6px rgba(255,107,0,.35); cursor: pointer;
}
input[type="range"]::-moz-range-thumb {
  width: 20px; height: 20px; border-radius: 50%;
  background: var(--orange); border: 3px solid #fff;
  box-shadow: 0 1px 6px rgba(255,107,0,.35); cursor: pointer;
}

/* ── Results ── */
.results-grid   { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }
.results-grid-2 { display: grid; grid-template-columns: 1fr 1fr;     gap: 12px; }
@media (max-width: 540px) { .results-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 360px) { .results-grid, .results-grid-2 { grid-template-columns: 1fr; } }

.result-cell { background: var(--bg); border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px; }
.result-cell .rc-label { font-size: .74rem; font-weight: 600; text-transform: uppercase; letter-spacing: .07em; color: var(--text-soft); margin-bottom: 4px; }
.result-cell .rc-value { font-size: 1.18rem; font-weight: 800; color: var(--text); white-space: nowrap; }
.result-cell .rc-sub   { font-size: .75rem; color: var(--text-soft); margin-top: 2px; }
.result-cell.highlight { background: var(--orange-light); border-color: var(--orange-mid); }
.result-cell.highlight .rc-value { color: var(--orange); }
.result-cell.green     { background: var(--green-light); border-color: var(--green-border); }
.result-cell.green .rc-value { color: var(--green); }
.result-cell.blue      { background: var(--blue-light); border-color: var(--blue-border); }
.result-cell.blue .rc-value  { color: var(--blue); }

.section-sep {
  font-size: .78rem; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase; color: var(--text-soft);
  margin: 20px 0 12px;
  display: flex; align-items: center; gap: 8px;
}
.section-sep::after { content: ''; flex: 1; height: 1px; background: var(--border); }

/* ── Info boxes ── */
.info-box {
  margin-top: 14px;
  background: var(--orange-light);
  border-left: 3px solid var(--orange);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: .82rem;
  color: var(--orange-dark);
  font-weight: 500;
  line-height: 1.55;
}
.info-box.green { background: var(--green-light); border-color: var(--green); color: #15803d; }
.info-box.blue  { background: var(--blue-light);  border-color: var(--blue);  color: #1d4ed8; }

/* ── Compare layout ── */
.compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 540px) { .compare-grid { grid-template-columns: 1fr; } }
.compare-col { background: var(--bg); border: 1px solid var(--border); border-radius: 12px; padding: 18px; }
.compare-col h3 { font-size: .78rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--orange); margin-bottom: 14px; }
.compare-row { display: flex; justify-content: space-between; align-items: baseline; padding: 7px 0; border-bottom: 1px solid var(--border); font-size: .88rem; }
.compare-row:last-child { border-bottom: none; }
.compare-row .cr-label { color: var(--text-soft); }
.compare-row .cr-val   { font-weight: 700; color: var(--text); }
.compare-row.main .cr-val { font-size: 1.1rem; color: var(--orange); }

/* ── Footer ── */
footer { text-align: center; padding: 24px; font-size: .78rem; color: var(--text-soft); border-top: 1px solid var(--border); }

/* ── Section SEO ── */
.tool-seo {
  background: var(--white);
  border-top: 1px solid var(--border);
  padding: 52px 24px 48px;
}
.tool-seo-inner {
  max-width: 900px;
  margin: 0 auto;
}
.tool-seo h2 {
  font-size: clamp(1.15rem, 3vw, 1.5rem);
  font-weight: 800;
  color: var(--text);
  letter-spacing: -.02em;
  line-height: 1.25;
  margin-bottom: 24px;
}
.tool-seo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 52px;
}
@media (max-width: 640px) { .tool-seo-grid { grid-template-columns: 1fr; } }
.tool-seo h3 {
  font-size: .98rem;
  font-weight: 700;
  color: var(--text);
  margin: 28px 0 8px;
}
.tool-seo p {
  font-size: .875rem;
  color: var(--text-soft);
  line-height: 1.72;
  margin-bottom: 8px;
}
.tool-seo ul {
  padding-left: 18px;
  font-size: .875rem;
  color: var(--text-soft);
  line-height: 1.72;
}
.tool-seo li { margin-bottom: 4px; }
.tool-seo strong { color: var(--text); }