:root { scroll-behavior: smooth; }
body[data-page="tools"] { background: var(--color-bg); color: var(--color-text); overflow-x: clip; }
.tools-shell { width: min(1180px, calc(100% - 2rem)); margin-inline: auto; }
.tools-hero { min-height: 78vh; display: grid; align-items: end; padding: clamp(8rem, 16vw, 13rem) 0 clamp(4rem, 8vw, 7rem); color: #fff; background: #0a0b0e; position: relative; overflow: hidden; }
.tools-hero::before { content: ""; position: absolute; inset: 0; pointer-events: none; background: radial-gradient(circle, rgba(255,255,255,.05) 1px, transparent 1px) / 28px 28px; mask-image: linear-gradient(to bottom, #000, transparent 90%); }
.tools-hero .tools-shell { position: relative; }
.tools-breadcrumb { display: flex; gap: .65rem; align-items: center; margin-bottom: clamp(2rem, 5vw, 4rem); font-size: .82rem; color: rgba(255,255,255,.65); }
.tools-breadcrumb a { color: inherit; text-decoration: none; }
.tools-breadcrumb a:hover, .tools-breadcrumb a:focus-visible { color: #fff; }
.tools-kicker, .tools-label { margin: 0 0 .85rem; font: 650 .75rem/1.4 var(--font-body); letter-spacing: .12em; text-transform: uppercase; color: var(--color-accent-dark); }
.tools-hero .tools-kicker { color: rgba(255,255,255,.62); }
.tools-hero h1 { max-width: 980px; margin: 0; font: 700 clamp(3.2rem, 9vw, 7.7rem)/.92 var(--font-heading); letter-spacing: -.055em; }
.tools-hero h1 em { color: rgba(255,255,255,.46); font-style: normal; }
.tools-lede { max-width: 760px; margin: 2rem 0 0; color: rgba(255,255,255,.72); font-size: clamp(1rem, 2vw, 1.25rem); line-height: 1.7; }
.tools-hero__actions, .tools-final-cta > .tools-shell > div { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.5rem; margin-top: 2rem; }
.tools-button { appearance: none; min-height: 48px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid #0f0f0e; border-radius: 999px; padding: .78rem 1.3rem; background: #0f0f0e; color: #fff; font: 650 .9rem/1 var(--font-body); text-decoration: none; cursor: pointer; transition: transform 220ms var(--ease-out-expo), background-color 220ms ease, border-color 220ms ease; }
.tools-button:hover { transform: translateY(-2px); background: var(--color-text-muted); }
.tools-button:focus-visible, .tools-text-link:focus-visible, .tools-directory__grid a:focus-visible, .tool-form :is(input, select):focus-visible, summary:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 3px; }
.tools-button--light { background: #fff; border-color: #fff; color: #0f0f0e; }
.tools-button--light:hover { background: var(--color-bg-alt); }
.tools-text-link { color: inherit; text-decoration-thickness: 1px; text-underline-offset: .3em; }
.tools-directory { padding: clamp(4rem, 9vw, 7rem) 0; border-bottom: var(--border-subtle); }
.tools-directory h2, .tools-assumptions h2, .tools-faq h2 { max-width: 780px; margin: 0; font: 680 clamp(2.2rem, 5vw, 4.2rem)/1 var(--font-heading); letter-spacing: -.045em; }
.tools-directory__grid { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 2.5rem; border-top: var(--border-subtle); border-left: var(--border-subtle); }
.tools-directory__grid a { min-height: 116px; display: flex; flex-direction: column; justify-content: space-between; padding: 1.25rem; border-right: var(--border-subtle); border-bottom: var(--border-subtle); color: var(--color-text); text-decoration: none; font: 600 1rem/1.3 var(--font-body); background: rgba(255,255,255,.35); transition: transform 240ms var(--ease-out-expo), background-color 240ms ease; }
.tools-directory__grid a:hover { transform: translateY(-3px); background: #fff; }
.tools-directory__grid span { font-size: .72rem; color: var(--color-text-muted); }
.tools-workbench { padding: clamp(4rem, 10vw, 8rem) 0; }
.tools-stack { display: grid; gap: 1.5rem; }
.tool-card { scroll-margin-top: 7rem; display: grid; grid-template-columns: minmax(0, .72fr) minmax(0, 1.28fr); gap: clamp(2rem, 6vw, 5rem); padding: clamp(1.35rem, 4vw, 3.5rem); border: var(--border-subtle); border-radius: var(--radius-xl); background: var(--color-surface); box-shadow: var(--shadow-sm); }
.tool-card__intro { align-self: start; position: sticky; top: 7rem; }
.tool-card__intro h2 { margin: 0 0 1rem; font: 680 clamp(1.8rem, 3.5vw, 3rem)/1.05 var(--font-heading); letter-spacing: -.04em; }
.tool-card__intro > p:last-child { color: var(--color-text-muted); line-height: 1.7; }
.tool-form { min-width: 0; }
.tool-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.tool-fields label, .tool-fields legend { font: 620 .82rem/1.4 var(--font-body); color: var(--color-text); }
.tool-fields input, .tool-fields select { width: 100%; min-height: 48px; margin-top: .45rem; padding: .75rem .85rem; border: 1px solid rgba(0,0,0,.16); border-radius: var(--radius-md); background: #fff; color: var(--color-text); font: 500 1rem/1.2 var(--font-body); }
.tool-fields input:invalid { border-color: var(--color-accent-dark); }
.tool-span { grid-column: 1 / -1; margin: 0; padding: 0; border: 0; }
.tool-checks { display: flex; flex-wrap: wrap; gap: .55rem; margin-top: .6rem; }
.tool-checks label { min-height: 44px; display: inline-flex; align-items: center; gap: .5rem; padding: .6rem .8rem; border: var(--border-subtle); border-radius: 999px; background: var(--color-bg); }
.tool-checks input { width: 1rem; min-height: auto; margin: 0; }
.tool-form > .tools-button { margin-top: 1.25rem; }
.tool-result { min-height: 88px; margin-top: 1.25rem; padding: 1.2rem; border-left: 3px solid var(--color-accent); border-radius: 0 var(--radius-md) var(--radius-md) 0; background: var(--color-accent-dim); color: var(--color-text); }
.tool-result p { margin: 0; line-height: 1.65; }
.tool-result p + p, .tool-result ul, .tool-result .result-actions { margin-top: .8rem; }
.tool-result strong { font-family: var(--font-heading); font-size: 1.1em; }
.tool-result ul { padding-left: 1.15rem; }
.tool-result li + li { margin-top: .35rem; }
.result-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: .7rem; }
.result-metric { padding: .8rem; border: 1px solid rgba(0,0,0,.08); border-radius: var(--radius-md); background: rgba(255,255,255,.74); }
.result-metric span { display: block; color: var(--color-text-muted); font-size: .75rem; }
.result-metric strong { display: block; margin-top: .25rem; }
.result-actions { display: flex; flex-wrap: wrap; gap: .6rem; }
.result-actions a { min-height: 44px; display: inline-flex; align-items: center; padding: .6rem .8rem; border-radius: 999px; background: #0f0f0e; color: #fff; text-decoration: none; font-size: .82rem; font-weight: 650; }
.result-actions a:last-child { border: 1px solid rgba(0,0,0,.14); background: transparent; color: var(--color-text); }
.result-table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.result-table th, .result-table td { padding: .65rem; text-align: left; border-bottom: 1px solid rgba(0,0,0,.1); }
.result-table th { font-weight: 700; }
.tools-assumptions { padding: clamp(4rem, 9vw, 7rem) 0; background: var(--color-bg-alt); }
.tools-assumptions__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 2.5rem; }
.tools-assumptions article { padding: 1.5rem; border: var(--border-subtle); border-radius: var(--radius-lg); background: rgba(255,255,255,.62); }
.tools-assumptions article span { color: var(--color-accent-dark); font-size: .75rem; font-weight: 700; }
.tools-assumptions article h3 { margin: 1rem 0 .5rem; font: 650 1.3rem/1.2 var(--font-heading); }
.tools-assumptions article p { margin: 0; color: var(--color-text-muted); line-height: 1.65; }
.tools-faq { padding: clamp(4rem, 9vw, 7rem) 0; }
.tools-faq__list { max-width: 860px; margin-top: 2.5rem; border-top: var(--border-subtle); }
.tools-faq details { border-bottom: var(--border-subtle); }
.tools-faq summary { min-height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 1rem; cursor: pointer; font-weight: 650; list-style: none; }
.tools-faq summary::-webkit-details-marker { display: none; }
.tools-faq summary::after { content: "+"; font-size: 1.4rem; }
.tools-faq details[open] summary::after { content: "−"; }
.tools-faq details p { max-width: 760px; margin: 0 0 1.25rem; color: var(--color-text-muted); line-height: 1.7; }
.tools-final-cta { padding: clamp(5rem, 11vw, 9rem) 0; background: #0a0b0e; color: #fff; }
.tools-final-cta h2 { max-width: 880px; margin: 0; font: 680 clamp(2.5rem, 6vw, 5.3rem)/.98 var(--font-heading); letter-spacing: -.05em; }
.tools-final-cta > .tools-shell > p:not(.tools-label) { max-width: 700px; color: rgba(255,255,255,.7); line-height: 1.7; }
.tools-final-cta .tools-label { color: rgba(255,255,255,.58); }
@media (max-width: 850px) {
  .tools-directory__grid { grid-template-columns: repeat(2, 1fr); }
  .tool-card { grid-template-columns: 1fr; }
  .tool-card__intro { position: static; }
  .tools-assumptions__grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .tools-shell { width: min(100% - 1.25rem, 1180px); }
  .tools-hero { min-height: 720px; }
  .tools-directory__grid, .tool-fields, .result-grid { grid-template-columns: 1fr; }
  .tool-span { grid-column: auto; }
  .tool-card { border-radius: var(--radius-lg); padding: 1.1rem; }
  .tool-checks { display: grid; grid-template-columns: 1fr 1fr; }
  .result-table { min-width: 500px; }
  .tool-result { overflow-x: auto; }
}
@media (prefers-reduced-motion: reduce) { :root { scroll-behavior: auto; } .tools-button, .tools-directory__grid a { transition: none; } }