/* HFS prototype — global shell: base, header, menu, footer. Tokens come from ../../..(styles.css). */
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--surface-page);color:var(--text-body);font-family:var(--font-body);font-size:var(--text-body-size);line-height:var(--leading-body);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--action-link);text-decoration-thickness:1.5px;text-underline-offset:3px}
a:hover{color:var(--action-link-hover)}
:focus-visible{outline:var(--focus-outline);outline-offset:var(--focus-offset);border-radius:2px}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:500;line-height:var(--leading-heading);letter-spacing:var(--tracking-display);margin:0}
p{margin:0}
.skip-link{position:absolute;left:-999px;top:8px;z-index:var(--z-toast);background:var(--hfs-ink);color:var(--surface-page);padding:10px 18px;border-radius:var(--radius-pill);font-weight:600}
.skip-link:focus{left:12px}
.wrap{max-width:var(--width-max);margin:0 auto;padding:0 var(--gutter)}
.label{font-size:var(--text-label);letter-spacing:var(--tracking-label);text-transform:uppercase;font-weight:700}
.hand{font-family:var(--font-hand);font-size:var(--text-hand);line-height:1.3}
.section{padding-block:var(--section-gap)}
/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 26px;border-radius:var(--radius-pill);font-family:var(--font-body);font-weight:600;font-size:.9375rem;letter-spacing:var(--tracking-button);text-decoration:none;border:1.5px solid transparent;cursor:pointer;transition:all var(--motion-fast) var(--ease-out)}
.btn-primary{background:var(--action-primary);color:var(--text-onberry)}
.btn-primary:hover{background:var(--action-primary-hover);color:var(--text-onberry);transform:translateY(-1px);box-shadow:var(--shadow-lift)}
.btn-secondary{background:transparent;color:var(--text-body);border-color:var(--hfs-ink)}
.btn-secondary:hover{background:var(--hfs-ink);color:var(--surface-page)}
.btn-ghost{background:none;color:var(--action-link);text-decoration:underline;text-underline-offset:4px;padding:12px 10px}
.btn:active{transform:translateY(1px)}
.btn-lg{padding:15px 34px;font-size:1.0625rem}
.btn[disabled],.btn.is-loading{opacity:.45;pointer-events:none}
/* header */
.site-header{position:sticky;top:0;z-index:var(--z-header);background:color-mix(in srgb,var(--surface-page) 92%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--hfs-line);transition:box-shadow var(--motion-base) var(--ease-out)}
.site-header.is-stuck{box-shadow:var(--shadow-print)}
.header-inner{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;padding:10px var(--gutter);max-width:var(--width-wide);margin:0 auto}
.header-left{display:flex;gap:4px;align-items:center}
.header-nav{display:flex;gap:4px;align-items:center}
.menu-btn{display:none}
.header-nav.right{justify-content:flex-end}
.nav-link{font-weight:600;font-size:var(--text-small);color:var(--text-body);text-decoration:none;padding:10px 14px;border-radius:var(--radius-pill);transition:background var(--motion-fast) var(--ease-out)}
.nav-link:hover{background:var(--surface-blush);color:var(--text-body)}
.nav-link[aria-current="page"]{background:var(--hfs-ink);color:var(--surface-page)}
.brand{display:inline-flex;flex-direction:column;align-items:center;text-decoration:none}
.brand img{height:64px;width:64px;transition:height var(--motion-base) var(--ease-out),width var(--motion-base) var(--ease-out)}
.site-header.is-stuck .brand img{height:44px;width:44px}
[data-theme="dark"] .brand img{filter:invert(1) brightness(1.5)}
.header-utils{display:flex;gap:8px;align-items:center;justify-content:flex-end}
.icon-btn{width:44px;height:44px;border-radius:var(--radius-pill);border:1.5px solid var(--hfs-line-strong);background:var(--surface-card);color:var(--text-body);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;font-size:17px;transition:background var(--motion-fast) var(--ease-out)}
.icon-btn:hover{background:var(--surface-blush)}
.icon-btn img{width:19px;height:19px;filter:invert(.25) sepia(.2)}
[data-theme="dark"] .icon-btn img{filter:invert(.9)}
.menu-btn{gap:9px;align-items:center;font-weight:700;font-size:var(--text-small);background:none;border:none;cursor:pointer;color:var(--text-body);padding:10px 12px;border-radius:var(--radius-pill)}
.menu-btn:hover{background:var(--surface-blush)}
.menu-btn .bars{display:inline-flex;flex-direction:column;gap:4px}
.menu-btn .bars span{width:20px;height:2px;background:var(--text-body);border-radius:2px;transition:transform var(--motion-base) var(--ease-out)}
/* overlay menu */
.menu-overlay{position:fixed;inset:0;z-index:var(--z-overlay);background:var(--surface-page);display:block;overflow:auto;visibility:hidden;pointer-events:none;opacity:0;clip-path:inset(0 0 100% 0);transition:clip-path .56s var(--ease-paper),opacity .32s var(--ease-out),visibility 0s linear .56s;will-change:clip-path,opacity}
.menu-overlay.open{visibility:visible;pointer-events:auto;opacity:1;clip-path:inset(0);transition-delay:0s}
.menu-overlay::before{content:"";position:fixed;inset:0;background:var(--surface-petal);clip-path:polygon(0 0,100% 0,100% 30%,0 42%);opacity:.5;pointer-events:none}
.menu-inner{position:relative;max-width:var(--width-max);margin:0 auto;padding:24px var(--gutter) 64px}
.menu-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:40px}
.menu-top .brand img{height:56px;width:56px}
.menu-close-slot{display:flex;align-items:center;justify-content:center}
.menu-close{width:52px;height:52px;border-radius:50%;border:1.5px solid var(--hfs-ink);background:var(--surface-card);font-size:20px;cursor:pointer;color:var(--text-body)}
.menu-close:hover{background:var(--hfs-ink);color:var(--surface-page)}
.menu-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:56px;align-items:start}
.menu-primary{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:4px}
.menu-primary a{font-family:var(--font-display);font-size:var(--text-h1);color:var(--text-body);text-decoration:none;display:inline-block;padding:6px 0;background-image:linear-gradient(var(--hfs-berry),var(--hfs-berry));background-repeat:no-repeat;background-position:0 92%;background-size:0 3px;transition:background-size var(--motion-base) var(--ease-out)}
.menu-primary a:hover{background-size:100% 3px;color:var(--text-body)}
.menu-primary .idx{font-family:var(--font-hand);font-size:1.1rem;color:var(--hfs-berry);margin-right:14px}
.menu-cats{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:8px}
.menu-aside{display:flex;flex-direction:column;gap:26px}
.menu-utils{display:flex;gap:12px;align-items:center;margin:-16px 0 32px}
.menu-bottom{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:12px;margin-top:36px}
.menu-listen{justify-self:start}
.menu-social{justify-self:end;flex-wrap:wrap;justify-content:flex-end}
.menu-theme{justify-self:end}
.menu-top,.menu-primary,.menu-bottom{opacity:0;transform:translateY(-14px);transition:opacity .24s var(--ease-out),transform .4s var(--ease-paper)}
.menu-overlay.open .menu-top,.menu-overlay.open .menu-primary,.menu-overlay.open .menu-bottom{opacity:1;transform:translateY(0)}
.menu-overlay.open .menu-top{transition-delay:.08s}
.menu-overlay.open .menu-primary{transition-delay:.14s}
.menu-overlay.open .menu-bottom{transition-delay:.2s}
.icon-btn.inverse{background:transparent;border-color:rgba(243,233,226,.3);color:var(--text-oninverse)}
.icon-btn.inverse:hover{background:rgba(243,233,226,.12)}
/* footer */
.site-footer{background:var(--surface-inverse);color:var(--text-oninverse);margin-top:var(--section-gap)}
.footer-inner{max-width:var(--width-max);margin:0 auto;padding:64px var(--gutter) 40px;display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.site-footer a{color:var(--text-oninverse);text-decoration:none;opacity:.85}
.site-footer a:hover{opacity:1;text-decoration:underline;text-underline-offset:3px;color:var(--text-oninverse)}
.footer-col ul{list-style:none;margin:12px 0 0;padding:0;display:flex;flex-direction:column;gap:9px;font-size:var(--text-small)}
.footer-col .label{opacity:.55}
.footer-brand img{height:84px;width:84px;filter:invert(1) brightness(1.6)}
.footer-brand p{margin-top:14px;font-size:var(--text-small);opacity:.75;max-width:32ch}
.footer-bottom{border-top:1px solid rgba(243,233,226,.15);padding:20px var(--gutter);display:flex;justify-content:space-between;align-items:center;gap:16px;max-width:var(--width-max);margin:0 auto;font-size:var(--text-caption);opacity:.7;flex-wrap:wrap}
.footer-sign{font-family:var(--font-hand);font-size:1.35rem;color:var(--hfs-berry);opacity:1}
/* torn dividers */
.torn{display:block;width:100%;height:var(--torn-height)}
/* reveal motion */
.reveal{opacity:0;transform:translateY(22px) rotate(var(--rv-rot,0deg));transition:opacity var(--motion-reveal) var(--ease-out),transform var(--motion-reveal) var(--ease-paper)}
.reveal.in{opacity:1;transform:translateY(0) rotate(var(--rv-rot,0deg))}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}