/* ════════════════════════════════════════════════════════════
   Third Rock Wealth · TOOL-DARK
   Shared dark theme for the bespoke, cinematic calculator pages.
   Scoped to  body.tool-page.  Loaded after main.css + v8-tokens.css
   and before the per-tool stylesheet.

   The marketing site stays light; the tools are a distinct dark
   "instrument" world. No pure #000 / #fff — every neutral is
   tinted toward evergreen.
   ════════════════════════════════════════════════════════════ */

body.tool-page {
  /* ── dark palette ─────────────────────────────────────── */
  --surface:        #0E1410;   /* page · near-black evergreen */
  --surface-raised: #141C16;   /* panels                     */
  --surface-high:   #1C271F;   /* lifted controls            */
  --hairline:       rgba(123, 165, 135, 0.16);
  --hairline-bold:  rgba(123, 165, 135, 0.34);
  --text:           #F4EBD9;   /* eggshell                   */
  --text-soft:      rgba(244, 235, 217, 0.64);
  --text-mute:      rgba(244, 235, 217, 0.40);
  --accent:         #7BA587;   /* evergreen, lifted          */
  --accent-bright:  #9BC4A6;   /* luminous evergreen         */
  --accent-deep:    #2E4636;
  --accent-glow:    rgba(123, 165, 135, 0.50);
  --alert:          #C97A82;   /* mahogany, lifted for dark  */

  /* contrast accent — warm gold marks growth / the upside */
  --gold:           #E2A63E;
  --gold-bright:    #F2BE5C;
  --gold-soft:      rgba(226, 166, 62, 0.13);
  --gold-glow:      rgba(226, 166, 62, 0.50);

  /* roundness */
  --r-panel:        16px;
  --r-ctl:          10px;

  background: var(--surface);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

body.tool-page main { overflow: clip; }

/* ── selection ──────────────────────────────────────────── */
body.tool-page ::selection { background: var(--accent-deep); color: var(--text); }

/* ════════════════════════════════════════════════════════════
   ENTRANCE STATES — hidden only while <html> carries
   .tool-anim-ready (added by an inline head script when motion
   is allowed). If JS/GSAP fails the class is dropped and all
   content shows. No dependency on script success.
   ════════════════════════════════════════════════════════════ */
html.tool-anim-ready [data-anim] { opacity: 0; will-change: opacity, transform; }

@media (prefers-reduced-motion: reduce) {
  html.tool-anim-ready [data-anim] { opacity: 1 !important; transform: none !important; }
}

/* ════════════════════════════════════════════════════════════
   SHARED SITE HEADER — dark variant
   ════════════════════════════════════════════════════════════ */
body.tool-page .site-header {
  background: rgba(14, 20, 16, 0.90);
  border-bottom: 1px solid var(--hairline);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
}
body.tool-page .logo { color: var(--text); }
body.tool-page .logo .ital { color: var(--accent-bright); }
body.tool-page .site-nav a {
  color: var(--text-soft);
  transition: color 140ms ease;
}
body.tool-page .site-nav a:hover,
body.tool-page .site-nav a.active { color: var(--text); }
body.tool-page .site-nav a.active { text-decoration-color: var(--accent); }

body.tool-page .nav-dropdown {
  background: var(--surface-raised);
  border: 1px solid var(--hairline);
  box-shadow: 0 24px 48px -24px rgba(0, 0, 0, 0.7);
}
body.tool-page .nav-dropdown a { color: var(--text-soft); }
body.tool-page .nav-dropdown a:hover { color: var(--text); background: var(--surface-high); }

body.tool-page .cta-icon-btn {
  color: var(--text-soft);
  border-color: var(--hairline);
}
body.tool-page .cta-icon-btn:hover { color: var(--text); border-color: var(--hairline-bold); }
body.tool-page .badge-count,
body.tool-page .nav-dropdown .count {
  background: var(--accent);
  color: var(--surface);
}
body.tool-page .signin {
  color: var(--text);
  border-color: var(--hairline-bold);
}
body.tool-page .signin:hover { background: var(--accent); color: var(--surface); border-color: var(--accent); }
body.tool-page .signout { color: var(--text-soft); }
body.tool-page .who-block { color: var(--text-soft); }
body.tool-page .hamburger span { background: var(--text); }

/* nav revamp — dark-theme equivalents (underline, focus, hovers) */
body.tool-page .site-nav a:hover { border-bottom-color: rgba(155, 196, 166, 0.40); }
body.tool-page .site-nav a.active { border-bottom-color: var(--accent); }
body.tool-page .cta-icon-btn:hover { background: var(--surface-high); }
body.tool-page .site-nav a:focus-visible,
body.tool-page .hamburger:focus-visible,
body.tool-page .cta-icon-btn:focus-visible,
body.tool-page .auth-state .signin:focus-visible,
body.tool-page .nav-dropdown a:focus-visible {
  outline-color: var(--accent-bright);
}

/* ════════════════════════════════════════════════════════════
   SHARED SITE FOOTER — dark variant (cohere with evergreen-black)
   ════════════════════════════════════════════════════════════ */
body.tool-page .site-footer {
  background: var(--surface);
  border-top: 1px solid var(--hairline);
}
body.tool-page .footer-bottom,
body.tool-page .footer-grid { border-color: var(--hairline); }
body.tool-page .footer-col-title { color: var(--accent-bright); }
body.tool-page .site-footer a:hover { color: var(--accent-bright); }

/* ════════════════════════════════════════════════════════════
   SHARED — focus, scrollbars
   ════════════════════════════════════════════════════════════ */
body.tool-page a:focus-visible,
body.tool-page button:focus-visible,
body.tool-page input:focus-visible,
body.tool-page [tabindex]:focus-visible {
  outline: 2px solid var(--accent-bright);
  outline-offset: 3px;
}

/* ════════════════════════════════════════════════════════════
   TOOLKIT PRIMITIVES — shared dark control + panel vocabulary
   (tk-*). Each tool stylesheet overrides the palette tokens and
   adds its own bespoke layout/composition on top of these.
   Defaults below: --contrast falls back to the gold accent.
   ════════════════════════════════════════════════════════════ */
body.tool-page {
  --contrast:        var(--gold);
  --contrast-bright: var(--gold-bright);
  --contrast-soft:   var(--gold-soft);
  --contrast-glow:   var(--gold-glow);
}

.tk-shell { padding: clamp(34px, 4.5vw, 68px) 0 clamp(48px, 7vw, 96px); }
.tk-wrap { width: min(1280px, 92vw); margin: 0 auto; }
.tk-kicker {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--accent-bright);
}
.tk-panel {
  background: var(--surface-raised);
  border: 1px solid var(--hairline);
  border-radius: var(--r-panel);
}

/* ── HERO ─────────────────────────────────────────────────── */
.tk-hero {
  position: relative;
  min-height: 420px;
  height: clamp(420px, 56vh, 640px);
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  border-bottom: 1px solid var(--hairline);
}
.tk-hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.tk-hero-veil {
  position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(to bottom, rgba(0,0,0,0.5) 0%, transparent 28%,
              transparent 52%, var(--surface) 99%);
}
.tk-hero-inner { position: relative; width: min(1280px, 92vw); margin: 0 auto;
  padding-bottom: clamp(32px, 5vh, 56px); }
.tk-eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--mono); font-size: 12px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.22em;
  color: var(--accent-bright); margin: 0 0 16px;
}
.tk-eyebrow span {
  display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px; border: 1px solid var(--accent);
  border-radius: 50%; color: var(--accent-bright); font-size: 12px;
}
.tk-hero-title {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(31px, 4.5vw, 62px); line-height: 1.03;
  letter-spacing: -0.025em; margin: 0 0 16px; color: var(--text);
  font-variation-settings: "SOFT" 40, "opsz" 110;
}
.tk-hero-title .l { display: block; }
.tk-hero-title em { font-style: italic; color: var(--contrast-bright);
  font-variation-settings: "SOFT" 90, "opsz" 144; }
.tk-hero-lede {
  font-family: var(--sans); font-size: clamp(14px, 1.4vw, 17px);
  line-height: 1.6; color: var(--text-soft); max-width: 46ch; margin: 0;
}

/* ── instrument grid: console + chart, equal height ───────── */
.tk-grid {
  display: grid; grid-template-columns: 372px 1fr;
  gap: clamp(16px, 2vw, 26px); align-items: stretch;
}
@media (max-width: 940px) { .tk-grid { grid-template-columns: 1fr; gap: 18px; } }

/* ── READOUT BAND ─────────────────────────────────────────── */
.tk-readout {
  display: flex; flex-wrap: wrap; align-items: center;
  justify-content: space-between; gap: clamp(20px, 3vw, 52px);
  padding: clamp(22px, 2.8vw, 40px) clamp(24px, 3vw, 46px);
  margin-bottom: clamp(16px, 2vw, 26px);
}
.tk-readout-main { min-width: 0; }
.tk-readout-main .tk-kicker { display: block; margin-bottom: 12px; }
.tk-figure {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(50px, 8vw, 122px); line-height: 0.9;
  letter-spacing: -0.04em; margin: 0; color: var(--text);
  font-variation-settings: "SOFT" 20, "opsz" 144;
  font-feature-settings: "tnum";
  text-shadow: 0 0 64px var(--contrast-glow);
}
.tk-subs { display: flex; flex-wrap: wrap; }
.tk-sub { padding: 2px clamp(16px, 2.2vw, 32px); border-left: 1px solid var(--hairline); }
.tk-sub:first-child { border-left: none; padding-left: 0; }
.tk-sub-k {
  display: block; font-family: var(--mono); font-size: 12px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.14em; color: var(--text-mute);
  margin-bottom: 10px;
}
.tk-sub-v {
  display: block; font-family: var(--serif); font-size: clamp(23px, 2.7vw, 36px);
  font-weight: 500; letter-spacing: -0.02em; color: var(--text);
  font-feature-settings: "tnum"; font-variation-settings: "SOFT" 40, "opsz" 100;
}
.tk-sub-accent .tk-sub-v { color: var(--accent-bright); }
.tk-sub-contrast .tk-sub-v { color: var(--contrast-bright); }

/* ── CONSOLE ──────────────────────────────────────────────── */
.tk-console { display: flex; flex-direction: column; padding: clamp(22px, 2.4vw, 30px); }
.tk-console-head {
  display: flex; align-items: baseline; justify-content: space-between;
  padding-bottom: 18px; margin-bottom: 22px; border-bottom: 1px solid var(--hairline);
}
.tk-meta {
  display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--mono); font-size: 12px; text-transform: uppercase;
  letter-spacing: 0.14em; color: var(--text-mute);
}
.tk-meta::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent-bright); box-shadow: 0 0 0 4px var(--accent-glow);
}
.tk-console-foot {
  margin-top: auto; padding-top: 22px; border-top: 1px solid var(--hairline);
  font-family: var(--mono); font-size: 12px; line-height: 1.7; color: var(--text-mute);
}

/* mode toggle */
.tk-mode {
  display: grid; grid-template-columns: 1fr 1fr;
  border: 1px solid var(--hairline-bold); border-radius: var(--r-ctl);
  overflow: hidden; margin-bottom: 26px;
}
.tk-mode-btn {
  background: transparent; border: none; font-family: var(--mono);
  font-size: 12px; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.13em; color: var(--text-soft); padding: 13px 10px;
  cursor: pointer; transition: color 160ms ease, background 160ms ease;
}
.tk-mode-btn + .tk-mode-btn { border-left: 1px solid var(--hairline-bold); }
.tk-mode-btn:hover { color: var(--text); }
.tk-mode-btn.is-on { background: var(--accent); color: var(--surface); }

/* field */
.tk-field { margin-bottom: 24px; }
.tk-field-top {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 14px; margin-bottom: 14px;
}
.tk-field-top label {
  font-family: var(--mono); font-size: 13px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-soft);
}
.tk-field-value { display: inline-flex; align-items: baseline; gap: 4px; }
.tk-unit-pre {
  font-family: var(--serif); font-size: 21px; color: var(--text-soft);
  font-variation-settings: "SOFT" 40, "opsz" 90;
}
.tk-unit {
  font-family: var(--mono); font-size: 13px; font-weight: 500;
  color: var(--text-soft); letter-spacing: 0.04em;
}
body.tool-page .tk-num {
  font-family: var(--serif); font-size: 25px; font-weight: 500;
  color: var(--text); background: transparent; border: none;
  border-bottom: 1px solid var(--hairline-bold); border-radius: 0;
  text-align: right; padding: 0 1px 3px; margin: 0; box-sizing: content-box;
  letter-spacing: -0.01em; font-variation-settings: "SOFT" 40, "opsz" 90;
  -webkit-appearance: none; -moz-appearance: textfield; appearance: none;
  box-shadow: none; transition: border-color 140ms ease;
}
body.tool-page .tk-num::-webkit-outer-spin-button,
body.tool-page .tk-num::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
body.tool-page .tk-num:hover { border-bottom-color: var(--accent); }
body.tool-page .tk-num:focus { border-bottom-color: var(--contrast-bright); background: transparent; }
.tk-num--w { width: 132px; }
.tk-num--m { width: 78px; }
.tk-num--s { width: 56px; }

/* slider */
.tk-range {
  -webkit-appearance: none; appearance: none; width: 100%; height: 4px;
  border-radius: 999px;
  background: linear-gradient(to right, var(--accent) var(--fill, 0%),
              var(--hairline-bold) var(--fill, 0%));
  outline: none; cursor: pointer;
}
.tk-range::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none; width: 22px; height: 22px;
  border-radius: 50%; background: var(--accent-bright);
  border: 4px solid var(--surface-raised);
  box-shadow: 0 0 0 1px var(--accent), 0 0 18px var(--accent-glow);
  cursor: grab; transition: transform 120ms ease;
}
.tk-range::-webkit-slider-thumb:active { cursor: grabbing; transform: scale(1.14); }
.tk-range::-moz-range-thumb {
  width: 22px; height: 22px; border-radius: 50%; background: var(--accent-bright);
  border: 4px solid var(--surface-raised);
  box-shadow: 0 0 0 1px var(--accent), 0 0 18px var(--accent-glow); cursor: grab;
}
.tk-range::-moz-range-track { height: 4px; border-radius: 999px; background: var(--hairline-bold); }
.tk-range:focus-visible { outline: 2px solid var(--contrast-bright); outline-offset: 6px; }
.tk-field-scale {
  display: flex; justify-content: space-between; margin-top: 9px;
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.06em; color: var(--text-mute);
}

/* ── CHART PANEL ──────────────────────────────────────────── */
.tk-chart-panel { display: flex; flex-direction: column; margin: 0; min-width: 0; overflow: hidden; }
.tk-chart-head {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 12px; padding: 15px clamp(18px, 2vw, 26px); border-bottom: 1px solid var(--hairline);
}
.tk-chart-wrap { position: relative; flex: 1; min-height: 320px; }
.tk-chart-wrap canvas { display: block; width: 100%; height: 100%; }
.tk-legend {
  display: flex; flex-wrap: wrap; gap: 18px; font-family: var(--mono);
  font-size: 12px; text-transform: uppercase; letter-spacing: 0.12em; color: var(--text-soft);
}
.tk-legend .lg { display: inline-flex; align-items: center; gap: 8px; }
.tk-legend .lg::before { content: ''; width: 16px; height: 3px; border-radius: 2px; }
.tk-legend .lg-a::before { background: var(--accent-bright); }
.tk-legend .lg-b::before { background: var(--contrast-bright); box-shadow: 0 0 10px var(--contrast-glow); }
.tk-legend .lg-c::before {
  background: repeating-linear-gradient(to right, var(--text-mute) 0 5px, transparent 5px 9px);
}

/* ── BANDS / RELATED / DISCLAIMER ─────────────────────────── */
.tk-band { border-top: 1px solid var(--hairline); padding: clamp(44px, 7vw, 92px) 0; }
.tk-band-inner { width: min(1280px, 92vw); margin: 0 auto; }
.tk-related { border-top: 1px solid var(--hairline); padding: clamp(44px, 6vw, 88px) 0; }
.tk-related h2 {
  font-family: var(--mono); font-size: 12px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.2em; color: var(--accent-bright); margin: 0 0 26px;
}
.tk-related-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1px; background: var(--hairline); border: 1px solid var(--hairline);
  border-radius: var(--r-panel); overflow: hidden;
}
.tk-related-card {
  display: block; padding: clamp(22px, 2.6vw, 32px); background: var(--surface-raised);
  color: var(--text); text-decoration: none; position: relative; transition: background 160ms ease;
}
.tk-related-card:hover { background: var(--surface-high); }
.tk-related-card .rc-meta {
  font-family: var(--mono); font-size: 12px; text-transform: uppercase;
  letter-spacing: 0.16em; color: var(--text-mute); margin: 0 0 10px;
}
.tk-related-card h3 {
  font-family: var(--serif); font-size: 23px; font-weight: 500; margin: 0 0 8px;
  letter-spacing: -0.018em; color: var(--text); font-variation-settings: "SOFT" 40, "opsz" 90;
}
.tk-related-card p {
  font-family: var(--sans); font-size: 13px; line-height: 1.55; color: var(--text-soft); margin: 0;
}
.tk-related-card .rc-arrow {
  position: absolute; right: 22px; bottom: 22px; font-family: var(--mono);
  color: var(--contrast-bright); opacity: 0; transform: translateX(-6px);
  transition: opacity 200ms ease, transform 200ms ease;
}
.tk-related-card:hover .rc-arrow { opacity: 1; transform: translateX(0); }
.tk-disclaimer {
  border-top: 1px solid var(--hairline); padding: clamp(34px, 4vw, 56px) 0; text-align: center;
}
.tk-disclaimer-inner { width: min(680px, 90vw); margin: 0 auto; }
.tk-disclaimer .tk-kicker { display: block; margin-bottom: 12px; }
.tk-disclaimer p {
  font-family: var(--serif); font-style: italic; font-size: 14px;
  line-height: 1.65; color: var(--text-soft); margin: 0;
}

/* ════════════════════════════════════════════════════════════
   FIELD GUIDE — a quiet, collapsible "how to read this tool"
   disclosure. Native <details>; closed by default, themes to
   each tool's palette. Lowkey when shut, a clear strip to open.
   ════════════════════════════════════════════════════════════ */
.tk-guide-band {
  border-top: 1px solid var(--hairline);
  margin-top: clamp(22px, 3vw, 38px);
}
.tk-guide { }
.tk-guide > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: clamp(20px, 2.5vw, 30px) 0;
}
.tk-guide > summary::-webkit-details-marker { display: none; }
.tk-guide > summary::marker { content: ''; }
.tk-guide > summary:focus-visible {
  outline: 2px solid var(--accent-bright); outline-offset: 4px; border-radius: 4px;
}
.tk-guide-icon {
  flex: none;
  width: 28px; height: 28px;
  display: grid; place-items: center;
  border: 1px solid var(--hairline-bold);
  border-radius: 50%;
  color: var(--accent-bright);
  font-family: var(--mono); font-size: 16px; line-height: 1;
  transition: transform 320ms var(--ease, ease), border-color 160ms ease, background 160ms ease;
}
.tk-guide[open] .tk-guide-icon { transform: rotate(45deg); }
.tk-guide > summary:hover .tk-guide-icon { border-color: var(--accent); background: var(--surface-high); }
.tk-guide-label {
  font-family: var(--mono); font-size: 12px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.16em; color: var(--text);
}
.tk-guide-hint {
  font-family: var(--sans); font-size: 13px; color: var(--text-mute);
  margin-left: auto; text-align: right;
  transition: color 160ms ease;
}
.tk-guide > summary:hover .tk-guide-hint { color: var(--text-soft); }
@media (max-width: 560px) { .tk-guide-hint { display: none; } }
.tk-guide-body {
  padding: 6px 0 clamp(34px, 4.5vw, 56px);
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: clamp(24px, 4vw, 68px);
}
.tk-guide:not([open]) > .tk-guide-body { display: none; }
@media (max-width: 820px) { .tk-guide-body { grid-template-columns: 1fr; gap: 22px; } }
.tk-guide-lead {
  font-family: var(--serif); font-size: clamp(18px, 2vw, 24px);
  line-height: 1.5; color: var(--text-soft); margin: 0;
  font-variation-settings: "SOFT" 50, "opsz" 90;
}
.tk-guide-lead b { color: var(--text); font-weight: 500; }
.tk-guide-inputs { margin: 0; }
.tk-guide-row { padding: 14px 0; border-top: 1px solid var(--hairline); }
.tk-guide-row:first-child { border-top: none; padding-top: 0; }
.tk-guide-row:last-child { padding-bottom: 0; }
.tk-guide-row dt {
  font-family: var(--mono); font-size: 11px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--accent-bright); margin-bottom: 7px;
}
.tk-guide-row dd {
  margin: 0; font-family: var(--sans); font-size: 14px;
  line-height: 1.62; color: var(--text-soft);
}
.tk-guide-row dd b { color: var(--text); font-weight: 600; }
@media (prefers-reduced-motion: no-preference) {
  .tk-guide[open] .tk-guide-body { animation: tk-guide-in 380ms var(--ease, ease); }
  @keyframes tk-guide-in {
    from { opacity: 0; transform: translateY(-8px); }
    to   { opacity: 1; transform: translateY(0); }
  }
}

/* ── pulse ────────────────────────────────────────────────── */
@keyframes tk-pulse {
  0% { text-shadow: 0 0 64px var(--contrast-glow); }
  40% { text-shadow: 0 0 64px var(--contrast-glow), 0 0 26px var(--contrast-glow); }
  100% { text-shadow: 0 0 64px var(--contrast-glow); }
}
.tk-figure.is-pulsing { animation: tk-pulse 520ms var(--ease, ease); }

@media (prefers-reduced-motion: reduce) {
  .tk-figure.is-pulsing { animation: none; }
}
