/* ==========================================================================
   MERCUR THEME — Core stylesheet
   1. Tokens   2. Reset/base   3. Typography   4. Layout
   5. Buttons  6. Animation    7. Header/nav/mega/drawer
   ========================================================================== */

/* 1. TOKENS ------------------------------------------------------------- */
:root{
  --ink:#090909;
  --ink-2:#404040;
  --ink-3:#737373;
  --ink-4:#a3a3a3;

  --bg:#ffffff;
  --bg-2:#fbfbfb;
  --bg-3:#f5f5f5;
  --bg-dark:#090909;
  --bg-dark-2:#141414;

  --line:#eeeeee;
  --line-2:#e2e2e2;
  --line-dark:rgba(255,255,255,.10);

  --purple:#4c24dd;
  --purple-soft:#efeaff;
  --amber:#f9a007;
  --amber-soft:#fff5e2;
  --green:#17803d;
  --red:#bb251a;

  --font-sans:"Sora",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"Roboto Mono",ui-monospace,SFMono-Regular,Menlo,monospace;

  --r-sm:8px;
  --r-md:12px;
  --r-lg:18px;
  --r-xl:26px;
  --r-pill:999px;

  --shadow-sm:0 1px 2px rgba(9,9,9,.05);
  --shadow-md:0 6px 24px -8px rgba(9,9,9,.10), 0 2px 6px rgba(9,9,9,.04);
  --shadow-lg:0 24px 60px -20px rgba(9,9,9,.18), 0 8px 20px -12px rgba(9,9,9,.10);
  --shadow-purple:0 24px 60px -24px rgba(76,36,221,.45);

  --wrap:1240px;
  --gutter:24px;
  --header-h:72px;

  --ease:cubic-bezier(.22,1,.36,1);
  --ease-soft:cubic-bezier(.4,0,.2,1);
}

/* 2. RESET & BASE ------------------------------------------------------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;
  padding-top:var(--header-h);
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
body.menu-open{overflow:hidden}
img,svg,video,canvas{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer;padding:0}
ul,ol{margin:0;padding:0;list-style:none}
figure{margin:0}
::selection{background:var(--purple);color:#fff}
:focus-visible{outline:2px solid var(--purple);outline-offset:3px;border-radius:4px}
.screen-reader-text{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(1px,1px,1px,1px);white-space:nowrap}
.skip-link{position:absolute;left:-9999px;top:0;z-index:999;background:var(--ink);color:#fff;padding:12px 20px;border-radius:0 0 var(--r-md) 0}
.skip-link:focus{left:0}

/* 3. TYPOGRAPHY --------------------------------------------------------- */
h1,h2,h3,h4,h5,h6{margin:0;font-weight:600;line-height:1.12;letter-spacing:-.03em}
h1,.h1{font-size:clamp(2.35rem,1.35rem + 3.5vw,4.15rem)}
h2,.h2{font-size:clamp(1.9rem,1.25rem + 2.3vw,3rem)}
h3,.h3{font-size:clamp(1.28rem,1.05rem + .8vw,1.72rem)}
h4,.h4{font-size:clamp(1.08rem,1rem + .4vw,1.28rem)}
h5{font-size:1.05rem}h6{font-size:.95rem}
p{margin:0 0 1.1em}p:last-child{margin-bottom:0}
strong,b{font-weight:600}
code,kbd,pre{font-family:var(--font-mono)}
.lead{font-size:clamp(1.02rem,.96rem + .35vw,1.2rem);color:var(--ink-2);line-height:1.65}
.eyebrow{
  font-family:var(--font-mono);font-size:.73rem;letter-spacing:.13em;
  text-transform:uppercase;color:var(--ink-3);
  display:inline-flex;align-items:center;gap:9px;margin-bottom:18px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--line-2)}
.text-purple{color:var(--purple)}
.text-amber{color:var(--amber)}
.text-muted{color:var(--ink-2)}
.gradient-text{
  background:linear-gradient(100deg,#090909 0%,#4c24dd 48%,#f9a007 100%);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}

/* 4. LAYOUT ------------------------------------------------------------- */
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gutter)}
.wrap-narrow{max-width:860px}
.section{position:relative;padding:clamp(62px,4vw + 42px,112px) 0}
.section--tight{padding-block:clamp(46px,3vw + 30px,78px)}
.section--alt{background:var(--bg-2)}
.section--dark{background:var(--bg-dark);color:#fff}
.section--dark .lead,.section--dark .text-muted{color:rgba(255,255,255,.7)}
.section--dark .eyebrow{color:rgba(255,255,255,.5)}
.section--dark .eyebrow::before{background:var(--line-dark)}
.section-head{max-width:760px;margin-bottom:clamp(34px,3vw,54px)}
.section-head--center{margin-inline:auto;text-align:center}
.section-head p{margin-top:16px}
.grid{display:grid;gap:20px}
.g-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.mt-32{margin-top:32px}
.mt-48{margin-top:48px}
.text-center{text-align:center}

/* 5. BUTTONS ------------------------------------------------------------ */
.btn{
  --btn-bg:var(--ink);--btn-fg:#fff;--btn-bd:var(--ink);
  position:relative;overflow:hidden;
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;
  background:var(--btn-bg);color:var(--btn-fg);
  border:1px solid var(--btn-bd);border-radius:var(--r-pill);
  font-size:.94rem;font-weight:500;letter-spacing:-.01em;line-height:1.2;
  white-space:nowrap;cursor:pointer;
  transition:transform .35s var(--ease),background .25s var(--ease-soft),
             color .25s var(--ease-soft),border-color .25s var(--ease-soft),
             box-shadow .35s var(--ease);
}
.btn::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:0;
  background:radial-gradient(130px 70px at var(--mx,50%) var(--my,50%),rgba(255,255,255,.24),transparent 70%);
  transition:opacity .35s;
}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn:hover::after{opacity:1}
.btn:active{transform:translateY(0)}
.btn svg{width:16px;height:16px;flex:none;transition:transform .35s var(--ease)}
.btn:hover svg{transform:translateX(3px)}
.btn--primary:hover{--btn-bg:#161616}
.btn--secondary{--btn-bg:#fff;--btn-fg:var(--ink);--btn-bd:var(--line-2)}
.btn--secondary:hover{--btn-bd:var(--ink)}
.btn--purple{--btn-bg:var(--purple);--btn-fg:#fff;--btn-bd:var(--purple)}
.btn--purple:hover{box-shadow:var(--shadow-purple)}
.btn--on-dark{--btn-bg:#fff;--btn-fg:var(--ink);--btn-bd:#fff}
.btn--on-dark-ghost{--btn-bg:transparent;--btn-fg:#fff;--btn-bd:rgba(255,255,255,.2)}
.btn--on-dark-ghost:hover{--btn-bd:#fff;--btn-bg:rgba(255,255,255,.08)}
.btn--sm{padding:9px 17px;font-size:.85rem}
.btn--lg{padding:16px 30px;font-size:1rem}
.btn--block{width:100%}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.btn-row--center{justify-content:center}

.pill{
  display:inline-flex;align-items:center;gap:8px;padding:7px 15px;
  border:1px solid var(--line-2);border-radius:var(--r-pill);background:#fff;
  font-family:var(--font-mono);font-size:.71rem;letter-spacing:.05em;
  text-transform:uppercase;color:var(--ink-2);
  transition:border-color .3s,color .3s,transform .3s var(--ease);
}
.pill:hover{border-color:var(--ink);color:var(--ink);transform:translateY(-1px)}
.pill--dot::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--green);box-shadow:0 0 0 3px rgba(23,128,61,.15)}
.pill--purple{background:var(--purple-soft);border-color:transparent;color:var(--purple)}
.pill--amber{background:var(--amber-soft);border-color:transparent;color:#a86a00}
.pill--dark{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.16);color:rgba(255,255,255,.8)}

.link-arrow{
  display:inline-flex;align-items:center;gap:7px;font-weight:500;font-size:.94rem;
  color:var(--ink);border-bottom:1px solid transparent;
  transition:border-color .3s,gap .3s var(--ease);
}
.link-arrow svg{width:15px;height:15px;transition:transform .35s var(--ease)}
.link-arrow:hover{gap:11px;border-color:currentColor}
.link-arrow:hover svg{transform:translateX(2px)}

/* 6. ANIMATION ENGINE --------------------------------------------------- */
/* Scoped to .mercur-js (set by an inline script in <head>) so that with
   JavaScript disabled or broken every section stays fully visible. */
.mercur-js [data-reveal]{
  opacity:0;transform:translate3d(0,26px,0);
  transition:opacity .8s var(--ease),transform .8s var(--ease);
  transition-delay:var(--reveal-delay,0ms);
  will-change:opacity,transform;
}
.mercur-js [data-reveal="left"]{transform:translate3d(-32px,0,0)}
.mercur-js [data-reveal="right"]{transform:translate3d(32px,0,0)}
.mercur-js [data-reveal="zoom"]{transform:scale(.94)}
.mercur-js [data-reveal="fade"]{transform:none}
.mercur-js [data-reveal].is-visible{opacity:1;transform:none}

@keyframes float-blob{
  0%,100%{transform:translate3d(0,0,0) scale(1)}
  33%{transform:translate3d(3%,-4%,0) scale(1.07)}
  66%{transform:translate3d(-3%,3%,0) scale(.95)}
}
@keyframes shimmer{0%{background-position:-200% 0}100%{background-position:200% 0}}
@keyframes marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@keyframes caret{0%,49%{opacity:1}50%,100%{opacity:0}}
@keyframes pulse-ring{0%{transform:scale(.9);opacity:.7}70%,100%{transform:scale(1.6);opacity:0}}
@keyframes rise-in{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@keyframes spin-slow{to{transform:rotate(360deg)}}

.hover-lift{transition:transform .45s var(--ease),box-shadow .45s var(--ease),border-color .45s var(--ease)}
.hover-lift:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .mercur-js [data-reveal]{opacity:1!important;transform:none!important}
  .hero h1 .word{opacity:1!important;animation:none!important}
}

/* 7. HEADER ------------------------------------------------------------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:900;height:var(--header-h);
  display:flex;align-items:center;border-bottom:1px solid transparent;
  transition:transform .45s var(--ease),border-color .4s var(--ease-soft),height .4s var(--ease);
}
.site-header::before{
  content:"";position:absolute;inset:0;z-index:-1;background:rgba(255,255,255,.78);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  backdrop-filter:saturate(180%) blur(14px);
  opacity:0;transition:opacity .4s var(--ease-soft);
}
.site-header.is-stuck::before{opacity:1}
.site-header.is-stuck{border-bottom-color:var(--line);height:64px}
.site-header.is-hidden{transform:translateY(-101%)}
.header-inner{
  width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gutter);
  display:flex;align-items:center;gap:24px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none;font-weight:600;letter-spacing:-.045em;font-size:1.22rem}
.brand-mark{width:30px;height:30px;flex:none;transition:transform .55s var(--ease)}
.brand:hover .brand-mark{transform:rotate(-12deg) scale(1.08)}
.brand img{max-height:34px;width:auto}

.nav-wrap{flex:1;display:flex;justify-content:center;min-width:0}
/* The mega panels position against the nav bar, not the individual item, so
   every one of them opens centred on the same axis. */
.nav-primary{position:relative;display:flex;align-items:center;gap:2px}
.nav-primary > li{position:static}
.nav-primary > li > a{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  padding:9px 13px;border-radius:var(--r-pill);
  font-size:.91rem;font-weight:450;color:var(--ink-2);transition:color .25s;
  white-space:nowrap; /* "Why Mercur" / "Contact Us" must never break in two */
}
.nav-primary > li > a::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;height:1.5px;
  background:var(--ink);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .4s var(--ease);
}
.nav-primary > li:hover > a,.nav-primary > li.is-open > a,
.nav-primary > li.current-menu-item > a{color:var(--ink)}
.nav-primary > li:hover > a::after,
.nav-primary > li.current-menu-item > a::after{transform:scaleX(1)}
.nav-caret{width:11px;height:11px;opacity:.55;transition:transform .35s var(--ease)}
.nav-primary > li.is-open .nav-caret{transform:rotate(180deg)}

/* Centred on the nav bar rather than on the individual trigger: every panel
   opens on the same axis, stays symmetric within the page grid, and can never
   overhang one side the way a trigger-centred panel did. */
.mega{
  position:absolute;top:calc(100% + 12px);left:50%;
  transform:translateX(-50%) translateY(-8px);
  width:min(640px,calc(100vw - 2 * var(--gutter)));
  background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);
  box-shadow:var(--shadow-lg);padding:18px;
  opacity:0;visibility:hidden;pointer-events:none;z-index:20;
  transition:opacity .3s var(--ease),transform .35s var(--ease),visibility .3s;
}
.nav-primary > li.is-open .mega{
  opacity:1;visibility:visible;pointer-events:auto;
  transform:translateX(-50%) translateY(0);
}
.mega-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px 16px}
.mega-grid--1{grid-template-columns:minmax(0,1fr)}
.mega-col-title{font-family:var(--font-mono);font-size:.66rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-4);padding:8px 12px 6px}
/* Text-only rows — the icon boxes were dropped from the dropdown. */
.mega-link{display:block;padding:11px 12px;border-radius:var(--r-md);transition:background .25s,transform .3s var(--ease)}
.mega-link:hover{background:var(--bg-2);transform:translateX(3px)}
.mega-link b{display:block;font-size:.89rem;font-weight:550;letter-spacing:-.015em}
.mega-link span{display:block;font-size:.78rem;color:var(--ink-3);line-height:1.45;margin-top:2px}
.mega-foot{
  margin-top:14px;padding:14px 16px;border-radius:var(--r-lg);
  background:var(--bg-2);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
/* The copy takes the slack so the button keeps its place on the same row
   instead of wrapping onto a second line. */
.mega-foot p{flex:1 1 200px;min-width:0;font-size:.82rem;color:var(--ink-3);margin:0}
.mega-foot .btn{flex:none}

.header-actions{display:flex;align-items:center;gap:9px;flex:none}
.icon-btn{
  position:relative;width:40px;height:40px;border-radius:50%;
  border:1px solid var(--line-2);display:flex;align-items:center;justify-content:center;
  transition:background .25s,border-color .25s,transform .3s var(--ease);
}
.icon-btn:hover{background:var(--bg-2);border-color:var(--ink);transform:translateY(-1px)}
.icon-btn svg{width:17px;height:17px}
.cart-count{
  position:absolute;top:-4px;right:-4px;min-width:19px;height:19px;padding:0 5px;
  border-radius:var(--r-pill);background:var(--purple);color:#fff;
  font-size:.65rem;font-weight:600;display:flex;align-items:center;justify-content:center;border:2px solid #fff;
}
.cart-count.is-empty{display:none}
/* flex-direction:column is required: the three bars are separate spans and a
   row layout laid them side by side, so the burger read as one long dash. */
.burger{display:none;flex-direction:column;width:42px;height:42px;border-radius:50%;border:1px solid var(--line-2);align-items:center;justify-content:center}
.burger span{display:block;width:17px;height:1.5px;background:var(--ink);border-radius:2px;transition:transform .4s var(--ease),opacity .25s}
.burger span+span{margin-top:4.5px}
body.menu-open .burger span:nth-child(1){transform:translateY(6px) rotate(45deg)}
body.menu-open .burger span:nth-child(2){opacity:0}
body.menu-open .burger span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.drawer{
  position:fixed;inset:var(--header-h) 0 0;z-index:880;background:#fff;
  padding:16px var(--gutter) 48px;overflow-y:auto;
  transform:translateY(-12px);opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .35s var(--ease),transform .4s var(--ease),visibility .35s;
}
body.menu-open .drawer{opacity:1;visibility:visible;pointer-events:auto;transform:none}
.drawer-group{border-bottom:1px solid var(--line)}
.drawer-toggle{width:100%;display:flex;align-items:center;justify-content:space-between;padding:17px 2px;font-size:1.02rem;font-weight:500;text-align:left}
.drawer-toggle svg{width:16px;height:16px;color:var(--ink-3);transition:transform .35s var(--ease)}
.drawer-group.is-open .drawer-toggle svg{transform:rotate(180deg)}
.drawer-panel{max-height:0;overflow:hidden;transition:max-height .45s var(--ease)}
.drawer-panel ul{padding:0 0 12px}
.drawer-panel a{display:block;padding:10px 2px 10px 14px;font-size:.93rem;color:var(--ink-2);border-left:1px solid var(--line);transition:color .25s,border-color .25s,padding-left .3s}
.drawer-panel a:hover{color:var(--ink);border-color:var(--ink);padding-left:18px}
.drawer-cta{display:grid;gap:10px;margin-top:26px}

/* HEADER RESPONSIVE */
@media (max-width:1240px){
  .nav-primary > li > a{padding:9px 10px;font-size:.87rem}
  .header-inner{gap:14px}
}
/* Six nowrap items plus the brand and actions stop fitting well below ~1100px,
   so hand over to the drawer there rather than letting the header crowd. */
@media (max-width:1100px){
  .nav-primary{display:none}
  .burger{display:flex}
  .header-actions .btn--nav{display:none}
}
@media (max-width:520px){
  :root{--gutter:18px}
  .brand span{display:none}
  .brand-mark{width:32px;height:32px}
}