/* ============================================================
   BSC Tools — extends assets/css/styles.css (same design tokens)
   ============================================================ */

.tools-hero { padding-block: clamp(30px, 5vw, 54px); background: linear-gradient(180deg, #F1F6FF 0%, var(--bg) 70%); }
.tools-hero .kicker { margin-bottom: 10px; }
.tools-hero h1 { font-size: clamp(1.8rem, 4.4vw, 3rem); line-height: 1.12; font-weight: 700; margin: 0 0 14px; letter-spacing: -.01em; color: var(--ink); }
.tools-hero p { color: var(--text-soft); font-size: 1.08rem; max-width: 640px; margin: 0; }

.tools-search { margin-top: 26px; max-width: 480px; }
.tools-search input {
  width: 100%; background: var(--panel); border: 1px solid var(--border); color: var(--ink);
  padding: 13px 16px; border-radius: 999px; font-family: var(--font); font-size: 1rem;
}
.tools-search input:focus-visible { outline: 2px solid var(--blue-ink); outline-offset: 1px; border-color: var(--blue); }

.tool-cat { padding-block: clamp(30px, 4vw, 46px); }
.tool-cat-title { font-size: clamp(1.3rem, 2.6vw, 1.7rem); font-weight: 700; color: var(--ink); margin: 0 0 4px; }
.tool-cat-sub { color: var(--text-soft); font-size: .96rem; margin: 0 0 22px; }

.tool-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
@media (max-width: 900px) { .tool-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .tool-grid { grid-template-columns: 1fr; } }

.tool-card { display: block; text-decoration: none; color: inherit; }
.tool-card .card { height: 100%; }
.tool-card-ico {
  display: inline-flex; align-items: center; justify-content: center; width: 46px; height: 46px;
  border-radius: 13px; font-size: 1.5rem; margin-bottom: 14px; background: rgba(66,133,244,.12);
}
.tool-card h3 { font-size: 1.08rem; margin: 0 0 6px; color: var(--ink); }
.tool-card p { color: var(--text-soft); font-size: .92rem; margin: 0; }
.tool-card-tag {
  display: inline-block; margin-top: 12px; font-size: .72rem; font-weight: 700; letter-spacing: .06em;
  text-transform: uppercase; color: var(--blue-ink); background: rgba(66,133,244,.1); border-radius: 999px; padding: 4px 10px;
}

/* ---------- Tool page shell ---------- */
.tool-page-hero { padding-block: clamp(26px, 4vw, 40px); border-bottom: 1px solid var(--border); background: var(--bg-alt); }
.tool-breadcrumb { font-size: .85rem; color: var(--text-soft); margin: 0 0 10px; }
.tool-breadcrumb a { color: var(--blue-ink); text-decoration: none; }
.tool-breadcrumb a:hover { text-decoration: underline; }
.tool-page-hero h1 { font-size: clamp(1.5rem, 3.4vw, 2.2rem); margin: 0 0 10px; color: var(--ink); }
.tool-page-hero p { color: var(--text-soft); font-size: 1.02rem; max-width: 680px; margin: 0; }

.tool-body { padding-block: clamp(30px, 4vw, 50px); }
.tool-layout { display: grid; grid-template-columns: 1fr; gap: 24px; }

/* ---------- Forms ---------- */
.tool-form-grid { display: grid; gap: 16px; grid-template-columns: repeat(2, 1fr); }
@media (max-width: 640px) { .tool-form-grid { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.span-2 { grid-column: 1 / -1; }
.field label { font-size: .86rem; font-weight: 600; color: var(--ink); }
.field .hint { font-size: .78rem; color: var(--text-soft); font-weight: 400; }
.field input[type="text"], .field input[type="number"], .field input[type="date"],
.field select, .field textarea {
  background: var(--panel); border: 1px solid var(--border); color: var(--ink);
  padding: 12px 14px; border-radius: var(--radius-sm); font-family: var(--font); font-size: .98rem; width: 100%;
}
.field textarea { resize: vertical; min-height: 120px; font-family: 'Courier New', monospace; font-size: .92rem; }
.field input:focus-visible, .field select:focus-visible, .field textarea:focus-visible {
  outline: 2px solid var(--blue-ink); outline-offset: 1px; border-color: var(--blue);
}
.field-radio-group { display: flex; flex-wrap: wrap; gap: 10px; }
.field-radio {
  display: inline-flex; align-items: center; gap: 7px; border: 1px solid var(--border); border-radius: 999px;
  padding: 8px 14px; font-size: .88rem; cursor: pointer; background: var(--panel);
}
.field-radio input { accent-color: var(--blue); }
.field-radio.is-active { border-color: var(--blue); background: rgba(66,133,244,.08); color: var(--blue-ink); font-weight: 600; }

.tool-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }

/* ---------- Results ---------- */
.result-box {
  margin-top: 26px; background: var(--panel-2); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px 24px; display: none;
}
.result-box.is-visible { display: block; animation: fadeUp .3s ease; }
.result-headline { font-size: 1.6rem; font-weight: 700; color: var(--ink); margin: 0 0 4px; }
.result-sub { color: var(--text-soft); font-size: .92rem; margin: 0 0 18px; }
.result-table { width: 100%; border-collapse: collapse; font-size: .94rem; }
.result-table th { text-align: left; color: var(--text-soft); font-weight: 600; font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; padding: 8px 6px; border-bottom: 1px solid var(--border); }
.result-table td { padding: 10px 6px; border-bottom: 1px solid var(--border); color: var(--text); }
.result-table tr:last-child td { border-bottom: none; }
.result-table td.num { text-align: right; font-variant-numeric: tabular-nums; }
.result-table tr.is-total td { font-weight: 700; color: var(--ink); font-size: 1.05rem; }
.result-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 14px; margin-top: 16px; }
.result-stat { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 14px 16px; text-align: center; }
.result-stat .n { display: block; font-size: 1.4rem; font-weight: 700; color: var(--blue-ink); font-variant-numeric: tabular-nums; }
.result-stat .l { display: block; font-size: .78rem; color: var(--text-soft); margin-top: 4px; }

/* ---------- Comparison table (maquininha) ---------- */
.compare-table-wrap { overflow-x: auto; margin-top: 16px; }
.compare-table { width: 100%; border-collapse: collapse; min-width: 520px; font-size: .92rem; }
.compare-table th, .compare-table td { padding: 10px 12px; border-bottom: 1px solid var(--border); text-align: right; }
.compare-table th:first-child, .compare-table td:first-child { text-align: left; }
.compare-table th { color: var(--text-soft); font-weight: 600; font-size: .76rem; text-transform: uppercase; background: var(--panel-2); }
.compare-table tr.best-row td { background: rgba(15,157,88,.08); font-weight: 700; color: var(--ink); }

/* ---------- File drop zone ---------- */
.drop-zone {
  border: 2px dashed var(--border); border-radius: var(--radius); padding: 40px 20px; text-align: center;
  background: var(--panel); cursor: pointer; transition: border-color .15s ease, background .15s ease;
}
.drop-zone:hover, .drop-zone.is-drag { border-color: var(--blue); background: rgba(66,133,244,.05); }
.drop-zone-ico { font-size: 2.2rem; margin-bottom: 10px; }
.drop-zone p { margin: 0; color: var(--text-soft); }
.drop-zone strong { color: var(--blue-ink); }
.drop-zone input[type="file"] { display: none; }

.file-list { list-style: none; margin: 16px 0 0; padding: 0; display: grid; gap: 8px; }
.file-list li {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 10px 14px; font-size: .88rem;
}
.file-list .fname { color: var(--ink); font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-list .fsize { color: var(--text-soft); flex: none; }
.file-list .frm { background: none; border: none; color: var(--text-soft); cursor: pointer; font-size: 1rem; flex: none; }
.file-list .frm:hover { color: #DB4437; }

.slider-row { display: flex; align-items: center; gap: 14px; }
.slider-row input[type="range"] { flex: 1; accent-color: var(--blue); }
.slider-val { font-weight: 700; color: var(--blue-ink); min-width: 48px; text-align: right; font-variant-numeric: tabular-nums; }

.preview-compare { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 18px; }
@media (max-width: 560px) { .preview-compare { grid-template-columns: 1fr; } }
.preview-box { text-align: center; }
.preview-box img { max-width: 100%; border-radius: var(--radius-sm); border: 1px solid var(--border); }
.preview-box .cap { margin-top: 8px; font-size: .82rem; color: var(--text-soft); }
.preview-box .cap strong { color: var(--ink); }

.tool-note-box {
  margin-top: 22px; border-left: 3px solid var(--blue); background: var(--panel-2); border-radius: var(--radius-sm);
  padding: 14px 16px; color: var(--text); font-size: .9rem;
}
.badge-ok { color: #0F9D58; font-weight: 700; }
.badge-bad { color: #DB4437; font-weight: 700; }

.copy-btn { position: relative; }
.copy-toast {
  position: absolute; top: -34px; right: 0; background: var(--ink); color: #fff; font-size: .78rem;
  padding: 5px 10px; border-radius: 6px; opacity: 0; transform: translateY(4px); transition: all .2s ease; pointer-events: none;
}
.copy-toast.is-visible { opacity: 1; transform: translateY(0); }

.related-tools { margin-top: 40px; padding-top: 30px; border-top: 1px solid var(--border); }

/* ---------- Formula cheatsheet ---------- */
.formula-cat { margin-bottom: 34px; }
.formula-cat h2 { font-size: 1.3rem; color: var(--ink); margin: 0 0 14px; }
.formula-grid { display: grid; gap: 14px; grid-template-columns: repeat(2, 1fr); }
@media (max-width: 760px) { .formula-grid { grid-template-columns: 1fr; } }
.formula-card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 16px 18px; box-shadow: var(--shadow-sm); }
.formula-card h3 { font-size: 1rem; margin: 0 0 8px; color: var(--ink); }
.formula-card p { font-size: .88rem; color: var(--text-soft); margin: 8px 0 0; }
.formula-code {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  background: var(--panel-2); border: 1px solid var(--border); border-radius: 6px;
  padding: 9px 12px; font-family: 'Courier New', monospace; font-size: .86rem; color: var(--ink);
}
.formula-code code { overflow-x: auto; white-space: nowrap; }
.formula-copy { flex: none; background: none; border: none; cursor: pointer; color: var(--blue-ink); font-size: .82rem; font-weight: 700; position: relative; }
.formula-copy:hover { color: var(--blue); }

/* ---------- Sponsor ad (same pattern as BSC Stocks' header ad) ---------- */
.bt-ad { display: flex; align-items: center; gap: 12px; padding: 8px 12px; background: linear-gradient(135deg, #f6f9ff, #eef4ff); border: 1px solid rgba(66,133,244,.28); border-radius: var(--radius-sm); cursor: pointer; position: relative; transition: box-shadow .15s; min-width: 0; flex: 1 1 320px; max-width: 420px; }
.bt-ad:hover { box-shadow: 0 4px 14px rgba(26,111,224,.18); }
.bt-ad-eyebrow { position: absolute; top: -7px; left: 12px; font-family: var(--font); font-size: 8px; font-weight: 800; letter-spacing: 1.4px; color: var(--text-soft); background: #fff; padding: 1px 6px; border-radius: 999px; border: 1px solid var(--border); }
.bt-ad-chevron { height: 26px; width: auto; flex-shrink: 0; }
.bt-ad-copy { min-width: 0; flex: 1; }
.bt-ad-brand { font-family: var(--font); font-size: 12px; font-weight: 800; letter-spacing: -.2px; display: block; color: var(--ink); }
.bt-ad-brand em { font-style: normal; font-weight: 300; color: var(--ink); }
.bt-ad-title { display: block; font-family: var(--font); font-size: 11.5px; font-weight: 700; color: var(--ink); line-height: 1.25; }
.bt-ad-sub { display: block; font-family: var(--font); font-size: 9.5px; color: var(--text-soft); line-height: 1.3; }
.bt-ad-cta { flex-shrink: 0; display: inline-flex; align-items: center; gap: 5px; padding: 7px 11px; background: #25D366; color: #fff; font-family: var(--font); font-size: 10.5px; font-weight: 800; border-radius: 999px; white-space: nowrap; transition: filter .15s; }
.bt-ad-cta:hover { filter: brightness(1.06); }
.bt-ad-wa { width: 13px; height: 13px; }
@media (max-width: 900px) {
  .bt-ad-sub { display: none; }
}
@media (max-width: 700px) {
  .header-inner { flex-wrap: wrap; }
  .bt-ad { order: 3; flex: 1 1 100%; max-width: none; margin-top: 4px; }
}