/* ============================================================
   MINERALOGIST.ORG — shared chrome (light theme)
   Plain CSS, no framework. Loaded by every page.
   ============================================================ */

/* ---------- fonts ---------- */
@font-face{font-family:'Bebas Neue';font-style:normal;font-weight:400;font-display:swap;src:url('../fonts/BebasNeue-400.woff2') format('woff2')}
@font-face{font-family:'Montserrat';font-style:normal;font-weight:400;font-display:swap;src:url('../fonts/Montserrat-400.woff2') format('woff2')}
@font-face{font-family:'Montserrat';font-style:normal;font-weight:500;font-display:swap;src:url('../fonts/Montserrat-500.woff2') format('woff2')}
@font-face{font-family:'Montserrat';font-style:normal;font-weight:600;font-display:swap;src:url('../fonts/Montserrat-600.woff2') format('woff2')}
@font-face{font-family:'Montserrat';font-style:normal;font-weight:700;font-display:swap;src:url('../fonts/Montserrat-700.woff2') format('woff2')}
@font-face{font-family:'Montserrat';font-style:normal;font-weight:800;font-display:swap;src:url('../fonts/Montserrat-800.woff2') format('woff2')}

/* ---------- tokens ---------- */
:root{
  --ink:#0a0d12; --navy:#10233c; --navy-2:#163a5f; --navy-3:#1e4a7a;
  --blue:#2766a8; --blue-bright:#8fb7e1; --blue-soft:#eaf2fb;
  --copper:#cb7b46; --orange:#b45a26; --orange-2:#c86a30;
  --paper:#f4f6fa; --paper-2:#e9edf3; --line:#dde3ec; --white:#fff;
  --muted:#6b7787; --radius:14px; --radius-lg:20px;
  --shadow:0 18px 50px -20px rgba(8,20,45,.45); --shadow-sm:0 8px 24px -12px rgba(8,20,45,.35);
  --maxw:1240px; --ease:cubic-bezier(.2,.7,.2,1);
}

/* ---------- base ---------- */
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:'Montserrat',system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--navy);background:var(--white);-webkit-font-smoothing:antialiased;line-height:1.55}
img{max-width:100%;display:block}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
a:focus-visible,button:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--blue);outline-offset:2px;border-radius:4px}
h1,h2,h3,h4{font-family:'Bebas Neue',sans-serif;font-weight:400;line-height:1;margin:0;text-transform:uppercase;letter-spacing:.02em}
p{margin:0 0 1rem}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.kicker{font-family:'Montserrat',sans-serif;text-transform:uppercase;letter-spacing:.22em;font-weight:600;font-size:.72rem;color:var(--copper)}
.kicker.on-dark{color:var(--blue-bright)}
.section{padding:88px 0}
.section-head{max-width:720px;margin-bottom:44px}
.section-head h2{font-size:clamp(2rem,4.4vw,3.2rem);margin:.35rem 0 .6rem}
.section-head p{color:var(--muted);font-size:1.06rem}
.blue{color:var(--blue)} .accent{color:var(--orange)}
.small{font-size:.82rem;color:var(--muted)}
code{font:500 .82em ui-monospace,'SF Mono',Menlo,Consolas,monospace;background:var(--paper-2);border:1px solid var(--line);border-radius:5px;padding:1px 6px;color:var(--navy-3)}
::selection{background:rgba(39,102,168,.22)}
.sr{position:absolute;width:1px;height:1px;clip:rect(0 0 0 0);overflow:hidden}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:.55rem;font-family:'Montserrat',sans-serif;text-transform:uppercase;letter-spacing:.06em;font-weight:600;font-size:.92rem;padding:.85rem 1.5rem;border-radius:10px;cursor:pointer;border:2px solid transparent;transition:transform .18s var(--ease),background .18s,box-shadow .18s,color .18s;white-space:nowrap;text-decoration:none!important}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 10px 24px -10px rgba(240,127,44,.75)}
.btn-primary:hover{background:var(--orange-2);color:#fff}
.btn-blue{background:var(--blue);color:#fff;box-shadow:0 10px 24px -12px rgba(31,111,208,.8)}
.btn-blue:hover{background:var(--navy-3);color:#fff}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost:hover{background:#fff;color:var(--navy);border-color:#fff}
.btn-outline{background:transparent;color:var(--navy);border-color:var(--navy)}
.btn-outline:hover{background:var(--navy);color:#fff}
.btn-sm{padding:.6rem 1.05rem;font-size:.82rem}
.arrow{transition:transform .2s var(--ease)}
.btn:hover .arrow{transform:translateX(3px)}
a.arrow-only{color:var(--blue);font-weight:600}

/* ---------- pills / chips / tags ---------- */
.mpill{font-family:'Montserrat';font-size:.66rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;padding:4px 8px;border-radius:5px;background:var(--paper-2);color:var(--muted);display:inline-block}
.chip{display:inline-block;font-family:'Montserrat';font-size:.8rem;font-weight:600;padding:.5rem 1rem;border-radius:999px;border:1.5px solid var(--line);background:#fff;color:var(--navy);cursor:pointer;transition:all .15s;text-decoration:none!important}
.chip:hover{border-color:var(--blue);color:var(--blue)}
.chip.on{background:var(--navy);color:#fff;border-color:var(--navy)}
.chip.on-copper{background:var(--copper);color:#fff;border-color:var(--copper)}
.mtag{position:absolute;top:12px;left:12px;z-index:2;background:var(--copper);color:#fff;font-family:'Montserrat';text-transform:uppercase;letter-spacing:.08em;font-size:.6rem;font-weight:700;padding:5px 9px;border-radius:5px}
.mtag.blue{background:var(--blue)} .mtag.navy{background:var(--navy-2)} .mtag.green{background:#2c7a4b}

/* ---------- utility bar ---------- */
.utility{background:var(--ink);color:#c7d2e0;font-size:.78rem}
.utility .wrap{display:flex;justify-content:space-between;align-items:center;height:38px;gap:16px}
.utility a{color:#c7d2e0;transition:color .15s;text-decoration:none}
.utility a:hover{color:#fff}
.utility .u-left{display:flex;align-items:center;gap:.5rem;font-weight:500;white-space:nowrap;overflow:hidden}
.utility .u-left .dot{width:6px;height:6px;border-radius:50%;background:var(--copper);display:inline-block;flex:none}
.utility .u-right{display:flex;gap:20px;align-items:center;flex:none}
.utility .u-right .sep{opacity:.3}
.utility .u-right a{text-decoration:none}
@media(max-width:860px){.utility .u-left span.long{display:none}.utility .u-right a.hideable{display:none}}

/* ---------- header ---------- */
.header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:box-shadow .2s}
.header.scrolled{box-shadow:0 8px 30px -18px rgba(8,20,45,.4)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px;gap:24px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;text-decoration:none!important}
.brand .mark{width:44px;height:44px;flex-shrink:0}
.brand .name{font-family:'Montserrat';font-weight:800;text-transform:uppercase;font-size:1.3rem;letter-spacing:.01em;color:var(--navy);line-height:1}
.brand .name small{display:block;font-family:'Montserrat';font-size:.5rem;letter-spacing:.28em;color:var(--copper);font-weight:600;margin-top:4px}
.menu{display:flex;align-items:center;gap:22px;margin-left:auto}
.menu a{font-family:'Montserrat';text-transform:uppercase;letter-spacing:.03em;font-weight:500;font-size:.88rem;color:var(--navy);position:relative;padding:6px 0;transition:color .15s;white-space:nowrap;text-decoration:none}
.menu a::after{content:"";position:absolute;left:0;bottom:0;height:2.5px;width:0;background:var(--copper);transition:width .22s var(--ease)}
.menu a:hover{color:var(--blue)} .menu a:hover::after{width:100%}
.menu a.on{color:var(--blue)} .menu a.on::after{width:100%}
.nav-cta{display:flex;align-items:center;gap:12px;flex-shrink:0}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.hamburger span{width:26px;height:2.6px;background:var(--navy);border-radius:2px;transition:.25s}
@media(max-width:1240px){.menu{display:none}.hamburger{display:flex}}
@media(max-width:620px){.nav-cta .btn{display:none}.brand .name small{display:none}}

/* ---------- drawer ---------- */
.drawer{position:fixed;inset:0;z-index:100;background:var(--navy);color:#fff;transform:translateX(100%);transition:transform .32s var(--ease);display:flex;flex-direction:column;padding:26px;overflow:auto}
.drawer.open{transform:none}
.drawer .d-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px}
.drawer .d-top .name{font-family:'Montserrat';font-size:1.3rem;text-transform:uppercase;font-weight:800}
.drawer .close{background:none;border:0;color:#fff;font-size:2rem;cursor:pointer;line-height:1}
.drawer a{font-family:'Montserrat';text-transform:uppercase;font-size:1.15rem;letter-spacing:.03em;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.12);color:#fff;text-decoration:none;display:flex;justify-content:space-between;align-items:baseline;gap:10px}
.drawer a small{font-size:.62rem;letter-spacing:.14em;color:#9fb4cf}
.drawer a:hover{color:var(--blue-bright)}
.drawer .btn{margin-top:24px;justify-content:center;border-bottom:0;font-size:.92rem}

/* ---------- page hero (subpages) ---------- */
.page-hero{position:relative;color:#fff;background:linear-gradient(120deg,var(--ink) 0%,var(--navy) 55%,var(--navy-3) 100%);overflow:hidden}
.page-hero::after{content:"";position:absolute;inset:0;background:radial-gradient(700px 320px at 82% -10%,rgba(203,123,70,.28),transparent 60%),radial-gradient(560px 300px at 8% 115%,rgba(63,155,242,.2),transparent 60%);pointer-events:none}
.page-hero .wrap{position:relative;z-index:1;padding:70px 24px 62px}
.page-hero h1{font-size:clamp(2.6rem,6vw,4.4rem);letter-spacing:.01em;margin:.3rem 0 .7rem}
.page-hero h1 em{font-style:normal;color:var(--copper)}
.page-hero .lede{max-width:62ch;color:#cfdcea;font-size:1.06rem;margin:0}
.page-hero .lede a{color:var(--blue-bright)}

/* ---------- breadcrumb ---------- */
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:.8rem;color:var(--muted);padding:20px 0 0;font-family:'Montserrat'}
.crumb a{color:var(--muted);text-decoration:none}
.crumb a:hover{color:var(--blue)}
.crumb .cur,.crumb b{color:var(--navy);font-weight:600}
.crumb .s{color:#b6c1cd}

/* ---------- mineral card ---------- */
.min-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:20px}
.mcard{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;transition:transform .2s var(--ease),box-shadow .2s;display:block;color:var(--navy);text-decoration:none!important}
.mcard:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm)}
.mcard .m-ph{aspect-ratio:4/3;background:var(--paper);overflow:hidden;position:relative;display:block}
.mcard .m-ph img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.mcard:hover .m-ph img{transform:scale(1.05)}
.mcard .m-ph .ph-gem{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-family:'Bebas Neue';font-size:4rem;color:#c3ccd8;letter-spacing:.05em;background:linear-gradient(140deg,var(--paper),var(--paper-2))}
.mcard .m-body{padding:16px 18px 18px}
.mcard .m-name{font-family:'Bebas Neue';font-size:1.55rem;letter-spacing:.02em;color:var(--navy);display:flex;justify-content:space-between;align-items:baseline;gap:8px;line-height:1;text-transform:none}
.mcard .m-name .fm{font-family:'Montserrat';color:var(--copper);font-size:.82rem;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:55%}
.mcard .m-meta{display:flex;gap:6px;margin-top:10px;flex-wrap:wrap}
.mcard:hover .m-name{color:var(--blue)}
@media(max-width:520px){.min-grid{gap:12px}}

/* ---------- tiles ---------- */
.tile-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:16px}
.tile{position:relative;display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 20px 18px;color:var(--navy);text-decoration:none!important;transition:all .18s var(--ease);overflow:hidden}
.tile:hover{border-color:var(--blue);transform:translateY(-3px);box-shadow:var(--shadow-sm)}
.tile h3{font-size:1.35rem;margin-bottom:4px}
.tile .sub{font-size:.82rem;color:var(--muted)}
.tile .n{position:absolute;top:14px;right:18px;font-family:'Bebas Neue';font-size:2rem;color:#c9d4e0}
.tile:hover .n{color:var(--copper)}
.tile .swatch{display:inline-block;width:34px;height:34px;border-radius:9px;border:1px solid rgba(0,0,0,.12);margin-bottom:14px;box-shadow:inset 0 -8px 14px rgba(0,0,0,.12)}

/* ---------- filter bar ---------- */
.fbar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:22px 0 30px}
.fbar .sep{width:1px;height:22px;background:var(--line)}
.fbar-label{font-family:'Montserrat';font-size:.66rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);margin-right:2px}
.count-line{color:var(--muted);font-size:.88rem;margin:-14px 0 26px}
.count-line b{color:var(--orange)}

/* ---------- generic prose / panels / tables ---------- */
.prose{max-width:760px}
.prose p{color:#3d4f66;margin-bottom:1rem;line-height:1.75}
.prose h2{font-size:2.1rem;margin:44px 0 14px}
.prose h3{font-family:'Montserrat';font-size:1.05rem;font-weight:700;letter-spacing:.02em;text-transform:none;margin:30px 0 10px}
.prose ul{margin:0 0 1rem 22px;color:#3d4f66;line-height:1.8}
.prose strong{color:var(--navy)}
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:30px;box-shadow:var(--shadow-sm)}
.callout{background:var(--blue-soft);border:1px solid #c8ddf2;border-left:4px solid var(--blue);border-radius:10px;padding:16px 20px;margin:18px 0;color:var(--navy-2);font-size:.95rem}
.callout b{color:var(--navy)}
.tbl{width:100%;border-collapse:collapse;font-size:.9rem}
.tbl th{font-family:'Montserrat';font-size:.66rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);text-align:left;padding:10px 12px;border-bottom:2px solid var(--line)}
.tbl td{padding:12px;border-bottom:1px solid var(--line);color:#3d4f66;vertical-align:top}
.tbl tr:hover td{background:var(--paper)}
.tbl a{color:var(--navy);font-weight:600;text-decoration:none}
.tbl a:hover{color:var(--blue);text-decoration:underline}

/* ---------- footer ---------- */
.footer{background:var(--ink);color:#a9bcd4;padding:70px 0 30px;font-size:.9rem}
.foot-top{display:grid;grid-template-columns:2fr 1fr 1fr;gap:36px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.1)}
.foot-brand .brand .name{color:#fff}
.foot-brand p{margin:18px 0;max-width:32ch;color:#8ea3bd}
.fcol h4{font-family:'Montserrat';text-transform:uppercase;letter-spacing:.1em;font-size:.82rem;color:#fff;margin-bottom:16px}
.fcol a{display:block;padding:6px 0;color:#a9bcd4;transition:color .15s;text-decoration:none}
.fcol a:hover{color:#fff}

.foot-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:24px;flex-wrap:wrap;gap:12px;font-size:.82rem;color:#7d92ad}
.foot-bottom .fb-links{display:flex;gap:20px}
.foot-bottom a{color:#7d92ad;text-decoration:none}
.foot-bottom a:hover{color:#fff}
@media(max-width:980px){.foot-top{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.foot-top{grid-template-columns:1fr}}

/* ---------- reveal animation ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}.reveal{opacity:1;transform:none}}

/* ---------- misc ---------- */
@media(max-width:700px){.section{padding:64px 0}.page-hero .wrap{padding:52px 24px 46px}}