/* base.css: wsc-design-suite page-build. Tokens come first (tokens.css), this second, page CSS third.
   Logical properties only. Every value is a token or structural. */

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--font-body);font-size:var(--text-base);font-weight:var(--weight-body);line-height:var(--leading-body);color:var(--color-ink);background:var(--color-surface)}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure,blockquote{margin:0}
:where(ul[class],ol[class]){list-style:none;padding:0}
img,svg,video{display:block;max-inline-size:100%;block-size:auto}
a{color:var(--color-brand-deep);text-decoration:underline;text-underline-offset:.2em;text-decoration-thickness:1px}
a:hover{color:var(--color-brand)}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--color-focus);outline-offset:2px}
.on-dark :focus-visible{outline-color:var(--color-accent)}
[dir=ltr]{--dir:1}[dir=rtl]{--dir:-1}
.icon-directional{transform:scaleX(var(--dir))}
bdi{unicode-bidi:isolate}

/* component theme: set these at the top of the page CSS from DESIGN.md sections 5 and 7 */
:root{--btn-radius:var(--radius-sm);--card-radius:var(--radius-md);--card-border:1px solid var(--color-line);--card-shadow:none;--img-radius:var(--radius-md);--section-pad:var(--space-section)}

/* type roles */
.display,.title,.subtitle{font-family:var(--font-display);font-weight:var(--weight-display);line-height:var(--leading-display);letter-spacing:var(--tracking-display);text-wrap:balance;overflow-wrap:anywhere}
.display{font-size:var(--text-5xl)}
.title{font-size:var(--text-4xl)}
h2.title,.title--2{font-size:var(--text-3xl)}
.subtitle{font-size:var(--text-xl);font-weight:var(--weight-medium);line-height:1.35}
.lead{font-size:var(--text-lg);line-height:1.6}
.small{font-size:var(--text-sm);line-height:1.5}
.eyebrow{font-size:var(--text-xs);font-weight:var(--weight-medium);letter-spacing:var(--tracking-eyebrow);line-height:1.3;color:var(--color-ink-muted)}
.on-dark .eyebrow{color:var(--color-accent)}
.muted{color:var(--color-ink-muted)}
p,li{text-wrap:pretty}
.signature-line::before{content:"";display:block;inline-size:3rem;block-size:1px;background:var(--color-accent);margin-block-end:var(--space-4)}

/* layout primitives */
.wrap{inline-size:100%;max-inline-size:var(--container);margin-inline:auto;padding-inline:clamp(1.25rem,4vw,2.5rem)}
.measure{max-inline-size:var(--measure)}
.stack{display:flex;flex-direction:column;gap:var(--gap,var(--space-4))}
.cluster{display:flex;flex-wrap:wrap;gap:var(--gap,var(--space-3));align-items:center}
.grid{display:grid;gap:var(--gap,var(--space-5));grid-template-columns:repeat(auto-fit,minmax(min(var(--min,16rem),100%),1fr))}
.split{display:grid;gap:var(--gap,var(--space-6));align-items:center}
@media (min-width:768px){.split{grid-template-columns:var(--ratio,minmax(0,7fr) minmax(0,5fr))}}
section,[data-section=footer]{padding-block:var(--section-pad)}
.section--tight{padding-block-start:var(--space-6)}
.surface-subtle{background:var(--color-surface-subtle)}
.surface-tint{background:var(--color-brand-tint)}
.on-dark{background:var(--color-surface-inverse);color:var(--color-ink-on-dark)}
.on-dark a{color:inherit}
.on-dark .muted{color:var(--color-ink-on-dark-muted)}
.section-head{display:flex;flex-direction:column;gap:var(--space-4);margin-block-end:var(--space-6)}

/* skip link, header, drawer */
.skip-link{position:absolute;inset-inline-start:var(--space-4);inset-block-start:-100%;background:var(--color-surface);padding:var(--space-3) var(--space-4);z-index:20}
.skip-link:focus{inset-block-start:var(--space-4)}
[data-section=header]{position:sticky;inset-block-start:0;z-index:10;background:var(--color-surface);border-block-end:1px solid transparent}
[data-section=header]:has(.nav.is-open){z-index:40}
[data-section=header].is-scrolled{border-block-end-color:var(--color-line)}
.header__bar{display:flex;align-items:center;gap:var(--space-5);min-block-size:60px}
@media (min-width:768px){.header__bar{min-block-size:72px}}
.menu-btn{inline-size:44px;block-size:44px;border:0;background:none;display:grid;place-items:center;cursor:pointer}
.header__logo{margin-inline-end:auto;display:inline-flex;align-items:center;min-block-size:44px;text-decoration:none;color:var(--color-ink)}
/* one nav element: a row from 1024px, the drawer below it. The links exist once in the DOM. */
.nav a{text-decoration:none;color:var(--color-ink)}
.nav a[aria-current=page]{font-weight:var(--weight-medium);box-shadow:inset 0 -1px 0 currentColor}
@media (max-width:1023.98px){
  .nav{position:fixed;inset:0;z-index:30;display:flex;flex-direction:column;overflow-y:auto;background:var(--color-surface);padding:var(--space-5);transform:translateX(calc(var(--dir) * -100%));visibility:hidden}
  .nav.is-open{transform:none;visibility:visible}
  .nav a{display:flex;align-items:center;min-block-size:56px;font-size:var(--text-xl);border-block-end:1px solid var(--color-line)}
  .nav__close{align-self:flex-start}
}
@media (max-width:1023.98px) and (prefers-reduced-motion:no-preference){.nav{transition:transform var(--duration-base) var(--ease-standard),visibility var(--duration-base)}}
@media (min-width:1024px){
  .nav{display:flex;align-items:center;gap:var(--space-5);margin-inline-end:auto}
  .nav a{display:inline-flex;align-items:center;min-block-size:44px}
  .nav__close,.nav__extra,[data-section=header] .menu-btn{display:none}
  .header__logo{margin-inline-end:0}
}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);min-block-size:48px;padding-inline:var(--space-6);border:1px solid transparent;border-radius:var(--btn-radius);background:var(--color-brand-deep);color:var(--color-on-brand-deep);font-weight:var(--weight-medium);text-decoration:none;cursor:pointer}
.btn:hover{background:var(--color-brand-hover);color:var(--color-on-brand-deep)}
.btn:active{transform:translateY(1px)}
.btn:disabled,.btn[aria-disabled=true]{background:var(--color-disabled-bg);color:var(--color-disabled-ink);border-color:transparent;cursor:not-allowed;transform:none}
.btn--secondary{background:transparent;color:var(--color-brand-deep);border-color:var(--color-brand-deep)}
.btn--secondary:hover{background:var(--color-brand-tint);color:var(--color-brand-deep)}
.on-dark .btn{background:var(--color-surface);color:var(--color-ink)}
.on-dark .btn--secondary{background:transparent;color:var(--color-ink-on-dark);border-color:var(--color-ink-on-dark)}
@media (prefers-reduced-motion:no-preference){.btn{transition:background-color var(--duration-fast) var(--ease-standard),transform var(--duration-fast) var(--ease-standard)}}

/* cards */
.card{position:relative;display:flex;flex-direction:column;gap:var(--space-3);padding:var(--space-5);background:var(--color-surface-raised);border:var(--card-border);border-radius:var(--card-radius);box-shadow:var(--card-shadow)}
.card:hover{border-color:var(--color-brand)}
.card__link{color:inherit;text-decoration:none}
.card__link::after{content:"";position:absolute;inset:0;border-radius:inherit}
.card__more{margin-block-start:auto;color:var(--color-brand-deep);font-weight:var(--weight-medium)}

/* quotable blocks */
.answer{background:var(--color-brand-tint);border-inline-start:2px solid var(--color-brand);border-start-end-radius:var(--card-radius);border-end-end-radius:var(--card-radius);padding:var(--space-5)}
.key-facts{display:grid;gap:var(--space-4) var(--space-6)}
@media (min-width:768px){.key-facts{grid-template-columns:1fr 1fr}}
.key-facts div{border-block-start:1px solid var(--color-line);padding-block-start:var(--space-3)}
.key-facts dt{font-size:var(--text-sm);color:var(--color-ink-muted)}
.key-facts dd{font-weight:var(--weight-medium)}
.proof-row{display:flex;flex-wrap:wrap;gap:var(--space-2) var(--space-5);font-size:var(--text-sm);color:var(--color-ink-muted)}
.proof-row li+li{border-inline-start:1px solid var(--color-line);padding-inline-start:var(--space-5)}

/* route: staged process */
.route{position:relative;display:flex;flex-direction:column;gap:var(--space-6);padding-inline-start:var(--space-6);counter-reset:step}
.route::before{content:"";position:absolute;inset-block:var(--space-2);inset-inline-start:7px;inline-size:1px;background:var(--color-accent)}
.route>li{position:relative;counter-increment:step}
.route>li::before{content:"";position:absolute;inset-inline-start:calc(var(--space-6) * -1 + (15px - var(--route-dot,15px)) / 2);inset-block-start:.4em;inline-size:var(--route-dot,15px);block-size:var(--route-dot,15px);border-radius:50%;background:var(--color-secondary);box-shadow:0 0 0 4px var(--color-surface)}

/* faq */
.faq details{border-block-end:1px solid var(--color-line)}
.faq summary{display:flex;justify-content:space-between;align-items:center;gap:var(--space-4);min-block-size:56px;padding-block:var(--space-3);cursor:pointer;font-weight:var(--weight-medium);list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";flex:none;inline-size:10px;block-size:10px;border-inline-end:1.5px solid currentColor;border-block-end:1.5px solid currentColor;transform:rotate(45deg);margin-inline-end:4px}
.faq details[open] summary::after{transform:rotate(-135deg)}
.faq details>div{padding-block-end:var(--space-5);max-inline-size:var(--measure)}

/* slider: scroll-snap, user driven */
.slider__track{display:flex;gap:var(--space-5);overflow-x:auto;scroll-snap-type:inline mandatory;scrollbar-width:none;padding-block:var(--space-2)}
.slider__track::-webkit-scrollbar{display:none}
.slider__track>*{flex:0 0 min(85%,24rem);scroll-snap-align:start}
@media (min-width:1024px){.slider__track>*{flex-basis:calc((100% - 2 * var(--space-5)) / 3)}}
.slider__nav{display:flex;gap:var(--space-3);margin-block-start:var(--space-5)}
.slider__btn{inline-size:48px;block-size:48px;border-radius:50%;border:1px solid var(--color-line-strong);background:none;cursor:pointer;display:grid;place-items:center}
.quote{display:flex;flex-direction:column;gap:var(--space-4);block-size:100%}
.quote footer{margin-block-start:auto;font-size:var(--text-sm);color:var(--color-ink-muted)}

/* prose */
.prose{max-inline-size:var(--measure);display:flex;flex-direction:column;gap:var(--space-4)}
.prose h2{margin-block-start:var(--space-6)}
.prose h3{margin-block-start:var(--space-5)}
.link-list{display:grid;gap:var(--space-3)}
.link-list a{font-weight:var(--weight-medium);display:inline-flex;align-items:center;min-block-size:44px}
.link-list{gap:0}
.tel{display:inline-flex;align-items:center;min-block-size:44px}

/* placeholders and images */
.ph{aspect-ratio:var(--ratio,3 / 2);inline-size:100%;border-radius:var(--img-radius);background:repeating-linear-gradient(135deg,var(--color-surface-subtle) 0 12px,var(--color-line) 12px 13px);display:grid;place-items:end start;padding:var(--space-4);font-size:var(--text-xs);color:var(--color-ink-muted)}
.media{border-radius:var(--img-radius);overflow:hidden}
mark.ph-text{background:none;color:inherit;box-shadow:inset 0 -2px 0 var(--color-secondary)}

/* forms */
.field{display:flex;flex-direction:column;gap:var(--space-2)}
.field label{font-size:var(--text-sm);font-weight:var(--weight-medium)}
.field input,.field textarea,.field select{min-block-size:48px;padding:var(--space-3) var(--space-4);border:1px solid var(--color-line-strong);border-radius:var(--radius-sm);background:var(--color-surface);font-size:max(1rem,var(--text-base))}
.field [dir=ltr]{text-align:end}
.field input:disabled,.field textarea:disabled,.field select:disabled{background:var(--color-disabled-bg);color:var(--color-disabled-ink);cursor:not-allowed}
.field__error{font-size:var(--text-sm);color:var(--color-error)}

/* band, footer, sticky bar */
.band .split{--ratio:minmax(0,7fr) minmax(0,4fr)}
[data-section=footer] a{text-decoration:none}
/* footer columns: details elements, accordions on mobile, opened by script from 768px (and openable without it) */
.footer__acc summary{list-style:none;display:flex;justify-content:space-between;align-items:center;min-block-size:48px;cursor:pointer}
.footer__acc summary::-webkit-details-marker{display:none}
.footer__acc summary::after{content:"";inline-size:8px;block-size:8px;border-inline-end:1.5px solid currentColor;border-block-end:1.5px solid currentColor;transform:rotate(45deg)}
.footer__acc[open] summary::after{transform:rotate(-135deg)}
@media (max-width:767.98px){.footer__acc{border-block-end:1px solid color-mix(in srgb,currentColor 20%,transparent)}}
@media (min-width:768px){.footer__acc summary{pointer-events:none;min-block-size:0}.footer__acc summary::after{display:none}}
[data-section=footer] a:hover{text-decoration:underline}
.footer__cols{display:grid;gap:var(--space-6)}
@media (min-width:768px){.footer__cols{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.footer__legal{margin-block-start:var(--space-6);padding-block-start:var(--space-4);border-block-start:1px solid color-mix(in srgb,currentColor 20%,transparent);font-size:var(--text-sm)}
.sticky-cta{position:fixed;inset-inline:0;inset-block-end:0;z-index:15;display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--color-line);box-shadow:var(--shadow-2)}
.sticky-cta a{display:grid;place-items:center;min-block-size:60px;background:var(--color-surface);color:var(--color-ink);font-weight:var(--weight-medium);text-decoration:none}
.sticky-cta a:first-child{background:var(--color-brand-deep);color:var(--color-on-brand-deep)}
@media (max-width:767px){body.has-sticky{padding-block-end:60px}}
@media (min-width:768px){.sticky-cta{display:none}}
.visually-hidden{position:absolute;inline-size:1px;block-size:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}