@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=DM+Sans:wght@300;400;500&family=DM+Mono:wght@300;400;500&display=swap');

/* ==========================================================================
   ToolDrop Design Kit ("One ToolDrop") v1
   Shared tokens + chrome + components for all ToolDrop tool pages.
   Load AFTER a tool's own <style>; tools keep ONE accent hue via
   --tdk-accent / --tdk-accent-soft overrides.
   ========================================================================== */

:root{
  /* surfaces */
  --tdk-bg:#08080c;
  --tdk-surface:#0f0f16;
  --tdk-surface2:#16161f;
  --tdk-border:rgba(255,255,255,.09);
  --tdk-border2:rgba(255,255,255,.16);
  /* ink */
  --tdk-text:#ecebf3;
  --tdk-mid:rgba(236,235,243,.64);
  --tdk-muted:rgba(236,235,243,.42);
  --tdk-faint:rgba(236,235,243,.28);
  /* accent (tool overrides this ONE pair) */
  --tdk-accent:#4f46e5;
  --tdk-accent-soft:rgba(79,70,229,.13);
  /* semantics */
  --tdk-pos:#3ddc97;
  --tdk-neg:#ff5d5d;
  --tdk-warn:#ffb020;
  --tdk-info:#47d4ff;
  /* geometry */
  --tdk-radius:10px;
  --tdk-radius-sm:8px;
  --tdk-radius-chip:999px;
  /* type */
  --tdk-font:'DM Sans',system-ui,-apple-system,'Segoe UI',sans-serif;
  --tdk-font-d:'Space Grotesk','DM Sans',system-ui,sans-serif;
  --tdk-font-m:'DM Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  color-scheme:dark;
}

html.light{
  --tdk-bg:#f7f5f2;
  --tdk-surface:#ffffff;
  --tdk-surface2:#f0eef9;
  --tdk-border:rgba(20,18,30,.09);
  --tdk-border2:rgba(20,18,30,.16);
  --tdk-text:#131118;
  --tdk-mid:rgba(19,17,24,.66);
  --tdk-muted:rgba(19,17,24,.45);
  --tdk-faint:rgba(19,17,24,.3);
  color-scheme:light;
}

/* ── Top chrome: back link + freshness stamp ─────────────────────────── */
.tdk-chrome{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  max-width:1080px;margin:0 auto;padding:12px 20px 0;
}
.tdk-back{
  font-family:var(--tdk-font-m);font-size:10.5px;font-weight:400;
  letter-spacing:.09em;text-transform:uppercase;
  color:var(--tdk-muted);text-decoration:none;white-space:nowrap;
  transition:color .15s;
}
.tdk-back:hover{color:var(--tdk-text)}
.tdk-stamp{
  display:inline-flex;align-items:center;gap:7px;
  font-family:var(--tdk-font-m);font-size:9.5px;font-weight:400;
  letter-spacing:.1em;text-transform:uppercase;
  color:var(--tdk-muted);
  border:1px solid var(--tdk-border);border-radius:var(--tdk-radius-chip);
  padding:5px 11px;background:var(--tdk-surface);
  white-space:nowrap;
}
.tdk-stamp-dot{
  width:6px;height:6px;border-radius:50%;flex-shrink:0;
  background:var(--tdk-pos);
  box-shadow:0 0 0 3px color-mix(in srgb,var(--tdk-pos) 18%,transparent);
}
/* Phone: chrome stacks (back link above stamp) so neither can spill the viewport */
@media(max-width:560px){
  .tdk-chrome{flex-direction:column;align-items:flex-start;gap:8px;padding-top:10px}
}

/* ── Hero / page header ──────────────────────────────────────────────── */
.tdk-hero{padding:26px 20px 6px;text-align:center}
.tdk-kicker{
  font-family:var(--tdk-font-m);font-size:10px;font-weight:400;
  letter-spacing:.16em;text-transform:uppercase;color:var(--tdk-muted);
  margin-bottom:10px;
}
.tdk-title{
  font-family:var(--tdk-font-d);font-weight:700;
  font-size:clamp(24px,4.5vw,34px);line-height:1.12;letter-spacing:-.02em;
  color:var(--tdk-text);
}
.tdk-title em{font-style:normal;color:var(--tdk-accent)}
.tdk-sub{
  margin-top:8px;
  font-family:var(--tdk-font-m);font-size:clamp(9.5px,1.8vw,11px);font-weight:400;
  letter-spacing:.12em;text-transform:uppercase;color:var(--tdk-faint);
}

/* ── Metric cards ────────────────────────────────────────────────────── */
.tdk-metrics{display:grid;gap:12px}
.tdk-metric{
  background:var(--tdk-surface);border:1px solid var(--tdk-border);
  border-radius:var(--tdk-radius);padding:13px 14px;
}
.tdk-metric .lbl,.tdk-mlabel{
  font-family:var(--tdk-font-m);font-size:9px;font-weight:400;
  text-transform:uppercase;letter-spacing:.11em;color:var(--tdk-muted);
  margin-bottom:5px;
}
.tdk-metric .val{
  font-family:var(--tdk-font-d);font-weight:700;line-height:1;
  font-size:clamp(16px,3.5vw,22px);letter-spacing:-.01em;
}
.tdk-metric .sub{font-size:10px;margin-top:4px;color:var(--tdk-muted)}

/* ── Panel (chart card, calculator, tables) ──────────────────────────── */
.tdk-panel{
  background:var(--tdk-surface);border:1px solid var(--tdk-border);
  border-radius:var(--tdk-radius);padding:16px;
}
.tdk-panel-title,.tdk-ptitle{
  font-family:var(--tdk-font-m);font-size:9.5px;font-weight:400;
  text-transform:uppercase;letter-spacing:.13em;color:var(--tdk-muted);
  margin-bottom:12px;
}

/* ── Section heading with rule ───────────────────────────────────────── */
.tdk-section{
  display:flex;align-items:center;gap:10px;margin:20px 0 10px;
  font-family:var(--tdk-font-m);font-size:9.5px;font-weight:400;
  text-transform:uppercase;letter-spacing:.14em;color:var(--tdk-muted);
}
.tdk-section::after{content:'';flex:1;height:1px;background:var(--tdk-border)}

/* ── Pills / segmented controls ──────────────────────────────────────── */
.tdk-pills{display:flex;gap:5px;flex-wrap:wrap}
.tdk-pill{
  padding:6px 14px;border-radius:var(--tdk-radius-chip);
  border:1px solid var(--tdk-border);background:transparent;
  color:var(--tdk-muted);font-family:var(--tdk-font);font-size:11.5px;
  font-weight:500;cursor:pointer;white-space:nowrap;
  transition:color .15s,border-color .15s,background .15s;
}
.tdk-pill:hover:not(.active){color:var(--tdk-text);border-color:var(--tdk-border2)}
.tdk-pill.active{
  border-color:var(--tdk-accent);background:var(--tdk-accent-soft);
  color:var(--tdk-accent);
}

/* ── Labels + fields ─────────────────────────────────────────────────── */
.tdk-flabel{
  display:block;font-family:var(--tdk-font-m);font-size:9.5px;font-weight:400;
  text-transform:uppercase;letter-spacing:.11em;color:var(--tdk-muted);
  margin-bottom:6px;
}
.tdk-input,.tdk-select{
  width:100%;background:var(--tdk-bg);border:1px solid var(--tdk-border);
  border-radius:var(--tdk-radius-sm);padding:9px 11px;
  font-family:var(--tdk-font);font-size:13px;color:var(--tdk-text);outline:none;
  transition:border-color .15s,box-shadow .15s;
}
.tdk-input:focus,.tdk-select:focus{
  border-color:var(--tdk-accent);
  box-shadow:0 0 0 3px var(--tdk-accent-soft);
}

/* ── Tables ──────────────────────────────────────────────────────────── */
.tdk-table{width:100%;border-collapse:collapse;font-size:12px}
.tdk-table th{
  font-family:var(--tdk-font-m);font-size:9px;font-weight:400;
  text-transform:uppercase;letter-spacing:.11em;color:var(--tdk-muted);
  padding:8px 10px;text-align:left;
  border-bottom:1px solid var(--tdk-border2);
}
.tdk-table td{padding:9px 10px;border-bottom:1px solid var(--tdk-border)}
.tdk-table tr:last-child td{border-bottom:none}
.tdk-table tr:hover td{background:rgba(255,255,255,.02)}

/* ── Primary / ghost buttons ─────────────────────────────────────────── */
.tdk-btn-p{
  padding:10px 20px;border:none;border-radius:var(--tdk-radius-sm);
  background:var(--tdk-accent);color:#fff;cursor:pointer;
  font-family:var(--tdk-font);font-weight:500;font-size:13px;
  transition:transform .15s,box-shadow .15s,filter .15s;
}
.tdk-btn-p:hover{transform:translateY(-1px);box-shadow:0 8px 22px var(--tdk-accent-soft);filter:brightness(1.06)}
.tdk-btn-o{
  padding:10px 18px;border-radius:var(--tdk-radius-sm);cursor:pointer;
  background:transparent;color:var(--tdk-mid);
  border:1px solid var(--tdk-border2);
  font-family:var(--tdk-font-m);font-size:10px;letter-spacing:.09em;text-transform:uppercase;
  transition:border-color .15s,color .15s;
}
.tdk-btn-o:hover{border-color:var(--tdk-accent);color:var(--tdk-text)}

/* ── Footer ──────────────────────────────────────────────────────────── */
.tdk-footer{
  border-top:1px solid var(--tdk-border);margin-top:22px;padding:20px 20px 8px;
  font-family:var(--tdk-font);font-size:10.5px;font-weight:300;
  line-height:1.7;color:var(--tdk-faint);text-align:center;
}
.tdk-footer a{color:var(--tdk-muted);text-decoration:none;transition:color .15s}
.tdk-footer a:hover{color:var(--tdk-text)}

/* ── Focus ring (keyboard users) ─────────────────────────────────────── */
:focus-visible{outline:2px solid var(--tdk-accent);outline-offset:2px}

/* ── Motion layer ──────────────────────────────────────────────────────
   Pages add <script>document.documentElement.classList.add('js')</script>
   high in <head>, then tag elements data-reveal (+ optional data-stagger
   on a parent to cascade its direct children). Without the js class,
   content never hides — no-JS visitors see everything. */
html.js [data-reveal]{opacity:0;transform:translateY(10px);transition:opacity .55s cubic-bezier(.2,.6,.2,1),transform .55s cubic-bezier(.2,.6,.2,1)}
html.js [data-reveal].in{opacity:1;transform:none}
html.js [data-stagger][data-stagger-on]>*,html.js [data-stagger]>*{transition-delay:0s}
@media(prefers-reduced-motion:reduce){
  html.js [data-reveal]{opacity:1 !important;transform:none !important;transition:none !important}
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
}