/* =========================================================
   胜博主页 · 主场坐标战术板 — 共享样式 /assets/site.css
   ========================================================= */

/* ---------- 1. reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body,h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
img,svg{max-width:100%}
a{color:inherit}
button{font:inherit;color:inherit}
:where(a,button,summary,[tabindex]):focus-visible{outline:2px dashed var(--ochre);outline-offset:3px;border-radius:4px}

/* ---------- 2. tokens ---------- */
:root{
  --ochre:#A6402D;
  --ochre-deep:#6E2B1F;
  --pine:#1F4A3D;
  --pine-soft:#E3EDE7;
  --cyan:#4FE3C1;
  --cyan-ink:#146B5B;
  --gold:#E8B45A;
  --gold-ink:#7A5312;
  --paper:#F5F0E6;
  --gray:#D8D2C4;
  --ink:#1B1A17;
  --cold:#FBFDFB;

  --line:rgba(27,26,23,.14);
  --line-pine:rgba(31,74,61,.22);
  --line-dark:rgba(227,237,231,.18);

  --wrap:1240px;
  --gutter:clamp(1rem,4vw,3rem);
  --r-s:6px;
  --r-m:14px;
  --r-l:26px;
  --shadow:0 20px 44px -30px rgba(27,26,23,.6);

  --font-head:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular","Cascadia Mono","Menlo","Consolas",monospace;
}

/* ---------- 3. base ---------- */
body{
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:clamp(1rem,.96rem + .2vw,1.0625rem);
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:var(--font-head);line-height:1.25}

/* ---------- 4. header ---------- */
.site-header{position:relative;z-index:60}

.page-progress{position:fixed;inset:0 0 auto 0;height:3px;z-index:150;pointer-events:none;background:rgba(27,26,23,.06)}
.page-progress-bar{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--ochre),var(--gold) 55%,var(--cyan));transition:width .12s linear}

.skip-link{
  position:absolute;left:1rem;top:-80px;z-index:200;
  padding:.6rem 1.1rem;border-radius:var(--r-s);
  background:var(--ink);color:var(--cold);
  font-size:.86rem;letter-spacing:.08em;text-decoration:none;
  transition:top .2s ease;
}
.skip-link:focus,.skip-link:focus-visible{top:.7rem}

.hdr-inner{
  width:100%;max-width:var(--wrap);
  margin-inline:auto;
  padding-inline:var(--gutter);
}

/* 上层：米白纸感 + 坐标网格 */
.hdr-top{
  background-color:var(--paper);
  background-image:
    linear-gradient(to right,rgba(27,26,23,.055) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(27,26,23,.055) 1px,transparent 1px),
    radial-gradient(120% 160% at 92% -30%,rgba(232,180,90,.35),transparent 62%);
  background-size:28px 28px,28px 28px,100% 100%;
  border-bottom:1px solid var(--line);
}
.hdr-top .hdr-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:1.25rem;padding-block:1rem;
}

.brand{display:inline-flex;align-items:center;gap:.85rem;text-decoration:none;color:var(--ink)}
.brand-mark{
  position:relative;flex:0 0 auto;
  width:44px;height:44px;border-radius:11px;
  background:var(--ochre);
  box-shadow:inset 0 0 0 1px rgba(245,240,230,.35),0 8px 18px -12px rgba(110,43,31,.95);
}
.brand-mark::before,.brand-mark::after{content:"";position:absolute;background:var(--cyan);opacity:.92}
.brand-mark::before{left:50%;top:8px;bottom:8px;width:2px;transform:translateX(-50%)}
.brand-mark::after{top:50%;left:8px;right:8px;height:2px;transform:translateY(-50%)}
.brand-mark-cross{position:absolute;inset:11px;border:1px solid rgba(245,240,230,.6);border-radius:50%}

.brand-text{display:flex;flex-direction:column;gap:.16rem;min-width:0}
.brand-name{font-weight:800;font-size:1.2rem;line-height:1.1;letter-spacing:.16em}
.brand-tagline{font-size:.76rem;letter-spacing:.05em;color:rgba(27,26,23,.62)}

.hdr-meta{display:flex;align-items:center;gap:1rem;flex:0 0 auto}
.hdr-meta-item{
  display:inline-flex;align-items:center;gap:.45rem;
  font-family:var(--font-mono);font-size:.73rem;letter-spacing:.06em;
  color:rgba(27,26,23,.66);
}
.meta-dot{
  width:7px;height:7px;border-radius:50%;background:var(--cyan-ink);
  box-shadow:0 0 0 3px rgba(79,227,193,.35);
  animation:meta-breathe 3.4s ease-in-out infinite;
}
@keyframes meta-breathe{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.55;transform:scale(.82)}}

.hdr-cta{
  display:inline-flex;align-items:center;gap:.4rem;
  padding:.62rem 1.15rem;border-radius:999px;
  background:var(--gold);color:var(--ink);
  font-size:.82rem;font-weight:800;letter-spacing:.1em;text-decoration:none;
  box-shadow:0 10px 22px -16px rgba(110,43,31,.9);
  transition:background .22s ease,color .22s ease,transform .22s ease;
}
.hdr-cta:hover,.hdr-cta:focus-visible{background:var(--ochre);color:var(--paper);transform:translateY(-1px)}

/* 下层：深松绿栏目轴 */
.nav-tier{position:relative;background:var(--pine);color:var(--pine-soft)}
.nav-inner{
  position:relative;
  display:flex;align-items:center;gap:clamp(.75rem,2vw,1.75rem);
  min-height:58px;padding-block:.45rem;
}
.nav-axis{
  position:absolute;left:var(--gutter);right:var(--gutter);bottom:0;height:6px;
  background-image:repeating-linear-gradient(90deg,rgba(79,227,193,.5) 0 1px,transparent 1px 24px);
  opacity:.45;pointer-events:none;
}

.site-nav{margin:0}
.nav-list{display:flex;align-items:center;flex-wrap:wrap;gap:clamp(.35rem,1.5vw,1.5rem)}
.nav-item{display:block}
.nav-link{
  position:relative;display:inline-block;
  padding:.55rem .25rem;
  color:var(--pine-soft);text-decoration:none;
  font-size:.92rem;font-weight:600;letter-spacing:.12em;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:.2rem;right:.2rem;bottom:.24rem;height:2px;
  background:var(--gold);transform:scaleX(0);transform-origin:left center;
  transition:transform .25s ease;
}
.nav-link:hover,.nav-link:focus-visible{color:var(--cold)}
.nav-link:hover::after,.nav-link:focus-visible::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--cyan)}
.nav-link[aria-current="page"]::after{background:var(--cyan);transform:scaleX(1)}
.nav-link[aria-current="page"]::before{
  content:"";position:absolute;left:50%;top:-.42rem;
  width:6px;height:6px;border-radius:50%;
  background:var(--cyan);transform:translateX(-50%);
  box-shadow:0 0 10px rgba(79,227,193,.9);
}

.nav-hint{
  margin-left:auto;
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.18em;
  color:rgba(227,237,231,.5);white-space:nowrap;
}

.nav-toggle{
  display:none;align-items:center;gap:.55rem;
  padding:.5rem .9rem;border-radius:999px;
  background:rgba(251,253,251,.08);
  border:1px solid rgba(79,227,193,.42);
  color:var(--cold);font-size:.8rem;letter-spacing:.1em;font-weight:600;
  cursor:pointer;
}
.nav-toggle:hover{background:rgba(79,227,193,.16)}
.nav-toggle-bars{display:inline-flex;flex-direction:column;justify-content:center;gap:4px;width:18px}
.nav-toggle-bars i{display:block;height:2px;border-radius:2px;background:var(--cyan);transition:transform .2s ease,opacity .2s ease}
.site-header[data-open] .nav-toggle-bars i:nth-child(1){transform:translateY(6px) rotate(45deg)}
.site-header[data-open] .nav-toggle-bars i:nth-child(2){opacity:0}
.site-header[data-open] .nav-toggle-bars i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- 5. footer ---------- */
.site-footer{
  position:relative;overflow:hidden;
  background:var(--pine);color:var(--pine-soft);
  border-top:3px solid var(--ochre);
}
.footer-ridge{
  position:absolute;right:-14%;bottom:-42%;
  width:min(760px,96vw);aspect-ratio:1;pointer-events:none;
  background:
    repeating-radial-gradient(circle at 62% 42%,rgba(79,227,193,.16) 0 1px,transparent 1px 34px),
    repeating-radial-gradient(circle at 18% 88%,rgba(232,180,90,.13) 0 1px,transparent 1px 46px);
  opacity:.9;
}
.footer-inner{
  position:relative;z-index:1;
  max-width:var(--wrap);margin-inline:auto;
  padding:clamp(2.4rem,5vw,4rem) var(--gutter) 1.6rem;
}
.footer-top{
  display:grid;
  grid-template-columns:minmax(240px,1.05fr) minmax(0,1.35fr) minmax(270px,1fr);
  gap:clamp(1.6rem,4vw,3.4rem);
  align-items:start;
}
.footer-brand{min-width:0}
.footer-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:46px;height:46px;border-radius:12px;
  background:var(--ochre);color:var(--cold);
  font-family:var(--font-mono);font-size:.9rem;letter-spacing:.08em;
  box-shadow:inset 0 0 0 1px rgba(245,240,230,.32);
}
.footer-title{
  margin-top:1rem;
  font-size:1.28rem;font-weight:800;letter-spacing:.18em;color:var(--cold);
}
.footer-line{
  margin-top:.65rem;max-width:30ch;
  font-size:.9rem;line-height:1.85;color:rgba(227,237,231,.76);
}
.coord-ball{
  display:inline-flex;align-items:center;gap:.55rem;
  margin-top:1.35rem;padding:.5rem .95rem;border-radius:999px;
  background:transparent;border:1px solid rgba(79,227,193,.45);
  color:var(--cold);font-size:.8rem;letter-spacing:.08em;
  cursor:pointer;transition:background .22s ease,border-color .22s ease;
}
.coord-ball:hover,.coord-ball:focus-visible{background:rgba(79,227,193,.14);border-color:var(--cyan)}
.coord-ball-dot{
  width:10px;height:10px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 0 4px rgba(79,227,193,.18);
}
.coord-ball-text{line-height:1}

.footer-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(1.2rem,3vw,2.5rem)}
.footer-col{min-width:0}
.footer-col-title{
  margin-bottom:.85rem;
  font-family:var(--font-mono);font-size:.73rem;letter-spacing:.22em;
  color:var(--gold);
}
.footer-list{display:flex;flex-direction:column;gap:.45rem}
.footer-link{
  display:inline-block;padding:.12rem 0;
  color:rgba(227,237,231,.86);text-decoration:none;
  font-size:.9rem;letter-spacing:.06em;
  border-bottom:1px solid transparent;
  transition:color .2s ease,border-color .2s ease;
}
.footer-link:hover,.footer-link:focus-visible{color:var(--cyan);border-color:rgba(79,227,193,.55)}

.footer-contact{min-width:0}
.contact-list{display:flex;flex-direction:column;gap:.2rem}
.contact-item{
  display:grid;grid-template-columns:minmax(0,1fr) auto;
  gap:.25rem .6rem;align-items:center;
  padding:.55rem 0;
  border-bottom:1px dashed rgba(227,237,231,.16);
}
.contact-label{
  grid-column:1 / -1;
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.16em;
  color:rgba(227,237,231,.55);
}
.contact-value{
  grid-column:1;min-width:0;
  font-size:.82rem;line-height:1.6;
  color:var(--cold);word-break:break-word;
}
.copy-btn{
  grid-column:2;
  padding:.2rem .6rem;border-radius:999px;
  background:rgba(232,180,90,.14);
  border:1px solid rgba(232,180,90,.45);
  color:var(--gold);font-size:.7rem;letter-spacing:.08em;
  cursor:pointer;transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.copy-btn:hover,.copy-btn:focus-visible{background:rgba(232,180,90,.26)}
.copy-btn[data-copied="true"]{background:rgba(79,227,193,.2);border-color:var(--cyan);color:var(--cyan)}
.footer-note{
  margin-top:.9rem;max-width:40ch;
  font-size:.76rem;line-height:1.75;color:rgba(227,237,231,.58);
}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:.5rem 1.4rem;
  margin-top:clamp(1.8rem,4vw,3rem);padding-top:1.15rem;
  border-top:1px solid rgba(227,237,231,.18);
  font-family:var(--font-mono);font-size:.73rem;letter-spacing:.09em;
  color:rgba(227,237,231,.62);
}

/* 深色区域焦点环 */
.nav-tier :focus-visible,.site-footer :focus-visible{outline-color:var(--cyan)}

/* ---------- 6. layout utilities ---------- */
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(2.4rem,6vw,5rem)}
.section--tight{padding-block:clamp(1.6rem,4vw,3rem)}
.band{background:var(--paper)}
.band--soft{background:var(--pine-soft)}
.band--pine{background:var(--pine);color:var(--pine-soft)}
.band--ochre{background:var(--ochre);color:var(--paper)}
.band--cold{background:var(--cold)}

.grid{display:grid;gap:clamp(1rem,2.4vw,2rem)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--split{grid-template-columns:minmax(0,1.65fr) minmax(0,1fr)}
.grid--aside{grid-template-columns:minmax(84px,.26fr) minmax(0,1fr)}

/* ---------- 7. typography ---------- */
.h-display{font-size:clamp(2.4rem,6vw,5.6rem);line-height:1.02;letter-spacing:.06em;font-weight:800}
.h1{font-size:clamp(1.9rem,3.6vw,3rem);line-height:1.18;letter-spacing:.08em;font-weight:800}
.h2{font-size:clamp(1.32rem,2.2vw,1.9rem);line-height:1.3;letter-spacing:.08em;font-weight:700}
.h3{font-size:1.06rem;line-height:1.4;letter-spacing:.06em;font-weight:700}
.eyebrow{font-family:var(--font-mono);font-size:.73rem;letter-spacing:.26em;color:var(--ochre)}
.band--pine .eyebrow,.band--ochre .eyebrow{color:var(--gold)}
.lede{font-size:clamp(1rem,1.3vw,1.12rem);line-height:1.9;color:rgba(27,26,23,.78);max-width:68ch}
.band--pine .lede{color:rgba(227,237,231,.82)}
.text-mono{font-family:var(--font-mono);font-size:.78rem;letter-spacing:.1em}
.note{font-size:.8rem;line-height:1.75;color:rgba(27,26,23,.6)}

/* ---------- 8. buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.45rem;
  padding:.7rem 1.25rem;border-radius:999px;border:1px solid transparent;
  font-size:.88rem;font-weight:700;letter-spacing:.09em;text-decoration:none;
  cursor:pointer;transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.btn:hover,.btn:focus-visible{transform:translateY(-1px)}
.btn--gold{background:var(--gold);color:var(--ink)}
.btn--gold:hover,.btn--gold:focus-visible{background:var(--ochre);color:var(--paper)}
.btn--pine{background:var(--pine);color:var(--cold)}
.btn--pine:hover,.btn--pine:focus-visible{background:var(--ochre-deep);color:var(--paper)}
.btn--ochre{background:var(--ochre);color:var(--paper)}
.btn--ochre:hover,.btn--ochre:focus-visible{background:var(--ochre-deep)}
.btn--ghost{background:transparent;border-color:currentColor;color:inherit}
.btn--ghost:hover,.btn--ghost:focus-visible{background:rgba(27,26,23,.07)}

/* ---------- 9. panels & tags ---------- */
.panel{
  background:var(--cold);border:1px solid var(--line);border-radius:var(--r-m);
  padding:clamp(1rem,2.2vw,1.6rem);box-shadow:var(--shadow);
}
.panel--soft{background:var(--pine-soft);border-color:var(--line-pine);box-shadow:none}
.panel--pine{background:var(--pine);color:var(--pine-soft);border-color:rgba(79,227,193,.28);box-shadow:none}
.panel-head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:.5rem 1rem;margin-bottom:.8rem}
.panel-meta{font-family:var(--font-mono);font-size:.73rem;letter-spacing:.12em;color:rgba(27,26,23,.55)}
.panel--pine .panel-meta{color:rgba(227,237,231,.6)}

.tag{
  display:inline-flex;align-items:center;gap:.32rem;
  padding:.2rem .62rem;border-radius:999px;
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.12em;
  color:var(--pine);border:1px solid var(--line-pine);background:rgba(227,237,231,.6);
}
.tag--cyan{color:var(--cyan-ink);border-color:rgba(79,227,193,.9);background:rgba(79,227,193,.18)}
.tag--gold{color:var(--gold-ink);border-color:rgba(232,180,90,.9);background:rgba(232,180,90,.22)}
.tag--ochre{color:var(--ochre);border-color:rgba(166,64,45,.5);background:rgba(166,64,45,.09)}

.stat{display:flex;flex-direction:column;gap:.15rem}
.stat-value{font-family:var(--font-mono);font-size:clamp(1.5rem,3vw,2.4rem);font-weight:700;letter-spacing:.04em;color:var(--ochre)}
.stat-label{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.18em;color:rgba(27,26,23,.55)}

/* ---------- 10. breadcrumbs ---------- */
.crumbs{padding-block:1rem;font-family:var(--font-mono);font-size:.73rem;letter-spacing:.1em}
.crumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:.4rem;color:rgba(27,26,23,.55)}
.crumb-item{display:inline-flex;align-items:center;gap:.4rem}
.crumb-link{color:var(--pine);text-decoration:none;border-bottom:1px solid rgba(31,74,61,.32)}
.crumb-link:hover,.crumb-link:focus-visible{color:var(--ochre);border-color:var(--ochre)}
.crumb-sep{color:var(--gray)}
.crumb-current{color:var(--ink)}

/* ---------- 11. coordinate rail ---------- */
.coord-rail{
  position:sticky;top:1.5rem;align-self:start;
  display:flex;flex-direction:column;gap:.9rem;
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.14em;
  color:rgba(27,26,23,.42);
}
.coord-rail-tick{display:flex;align-items:center;gap:.5rem;text-decoration:none;color:inherit}
.coord-rail-tick::before{content:"";flex:0 0 auto;width:16px;height:1px;background:currentColor}
.coord-rail-tick:hover{color:var(--ochre)}
.coord-rail-tick[data-active="true"]{color:var(--ochre);font-weight:700}
.coord-rail-tick[data-active="true"]::before{width:24px;background:var(--cyan-ink);height:2px}

/* ---------- 12. media frames ---------- */
.media{position:relative;isolation:isolate;overflow:hidden;border-radius:var(--r-m);background:var(--pine-soft);border:1px solid var(--line)}
.media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(31,74,61,.1) 1px,transparent 1px),
    linear-gradient(90deg,rgba(31,74,61,.1) 1px,transparent 1px);
  background-size:38px 38px;
}
.media-img,.media img{display:block;width:100%;height:100%;aspect-ratio:16/10;object-fit:cover}
.media--wide .media-img,.media--wide img{aspect-ratio:21/9}
.media--tall .media-img,.media--tall img{aspect-ratio:4/5}
.media-caption{
  position:relative;z-index:2;
  padding:.55rem .8rem;
  background:rgba(251,253,251,.92);
  font-family:var(--font-mono);font-size:.71rem;letter-spacing:.08em;
  color:rgba(27,26,23,.7);
}
.media-grid{display:grid;gap:clamp(.8rem,2vw,1.4rem);grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}

/* ---------- 13. timeline ---------- */
.timeline{position:relative;display:flex;flex-direction:column;gap:1.15rem;padding-left:1.25rem;border-left:1px solid var(--line-pine)}
.timeline-item{position:relative}
.timeline-item::before{
  content:"";position:absolute;left:-1.25rem;top:.5rem;
  width:9px;height:9px;border-radius:50%;
  background:var(--gray);transform:translateX(-50%);
  box-shadow:0 0 0 3px var(--paper);
}
.timeline-item[data-current="true"]::before{background:var(--cyan-ink);box-shadow:0 0 0 3px var(--paper),0 0 12px rgba(79,227,193,.85)}
.timeline-date{font-family:var(--font-mono);font-size:.73rem;letter-spacing:.14em;color:var(--ochre)}
.timeline-body{margin-top:.3rem;font-size:.95rem;line-height:1.8;color:rgba(27,26,23,.78)}

/* ---------- 14. accordion ---------- */
.accordion{border-top:1px solid var(--line)}
.accordion-item{border-bottom:1px solid var(--line)}
.accordion-trigger{
  display:flex;width:100%;align-items:center;justify-content:space-between;gap:1rem;
  padding:1rem .2rem;background:none;border:0;
  font-family:var(--font-head);font-weight:700;font-size:1rem;letter-spacing:.05em;
  text-align:left;color:var(--ink);cursor:pointer;transition:color .2s ease;
}
.accordion-trigger:hover,.accordion-trigger:focus-visible{color:var(--ochre)}
.accordion-trigger::after{
  content:"";flex:0 0 auto;width:10px;height:10px;
  border-right:2px solid var(--ochre);border-bottom:2px solid var(--ochre);
  transform:rotate(45deg);transition:transform .25s ease;
}
.accordion-trigger[aria-expanded="true"]::after{transform:rotate(-135deg)}
.accordion-panel{padding:0 .2rem 1.1rem;font-size:.95rem;line-height:1.85;color:rgba(27,26,23,.78)}
.accordion-panel[hidden]{display:none}

/* ---------- 15. filter ---------- */
.filter-bar{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem}
.filter-btn{
  padding:.42rem .9rem;border-radius:999px;
  background:transparent;border:1px solid var(--line-pine);
  color:var(--pine);font-size:.8rem;letter-spacing:.1em;
  cursor:pointer;transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.filter-btn:hover,.filter-btn:focus-visible{border-color:var(--ochre);color:var(--ochre)}
.filter-btn[aria-pressed="true"]{background:var(--pine);border-color:var(--pine);color:var(--cold)}
.filter-count{margin-left:auto;font-family:var(--font-mono);font-size:.72rem;letter-spacing:.1em;color:rgba(27,26,23,.5)}
[data-filter-tag][hidden]{display:none}

/* ---------- 16. reveal ---------- */
.has-reveal [data-reveal]{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
.has-reveal [data-reveal].is-revealed{opacity:1;transform:none}

/* ---------- 17. responsive ---------- */
@media (max-width:1100px){
  .nav-hint{display:none}
}
@media (max-width:1024px){
  .footer-top{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-brand,.footer-contact{grid-column:1 / -1}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--split{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:900px){
  .hdr-meta-item{display:none}
  .nav-toggle{display:inline-flex}
  .nav-inner{justify-content:space-between;min-height:54px}
  .site-nav{
    position:absolute;left:0;right:0;top:100%;
    display:none;
    background:var(--pine);
    border-top:1px solid rgba(79,227,193,.3);
    padding:.5rem var(--gutter) 1.1rem;
    box-shadow:0 26px 42px -26px rgba(0,0,0,.75);
    z-index:80;
  }
  .site-header[data-open] .site-nav{display:block}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-link{display:block;padding:.9rem .2rem;font-size:1rem;border-bottom:1px dashed rgba(227,237,231,.16)}
  .nav-link::after{display:none}
  .nav-link[aria-current="page"]::before{left:auto;right:0;top:50%;margin-top:-3px;transform:none}
  .grid--aside{grid-template-columns:minmax(0,1fr)}
  .coord-rail{position:static;flex-direction:row;flex-wrap:wrap;gap:.6rem 1.1rem;margin-bottom:1.2rem}
}
@media (max-width:760px){
  .grid--2,.grid--3{grid-template-columns:minmax(0,1fr)}
  .footer-nav{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:640px){
  .hdr-top .hdr-inner{flex-wrap:wrap;gap:.75rem;padding-block:.85rem}
  .brand-tagline{display:none}
  .hdr-cta{width:100%;justify-content:center}
  .hdr-meta{width:100%}
  .footer-top{grid-template-columns:minmax(0,1fr)}
  .footer-bottom{justify-content:flex-start}
}

/* ---------- 18. motion preferences ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .has-reveal [data-reveal]{opacity:1;transform:none;transition:none}
  .btn:hover,.hdr-cta:hover,.coord-ball:hover{transform:none}
}