/* ============================================================
   HerculeDev — theroyalsussex.com
   Small tools that do one job properly.
   ============================================================ */

:root{
  --paper:#FAF9F6;
  --paper-2:#F2EFE8;
  --card:#FFFFFF;
  --ink:#13161B;
  --ink-2:#2C333D;
  --muted:#5E6774;
  --faint:#8D95A2;
  --line:#E3DFD5;
  --line-2:#CFC9BB;
  --flame:#D8441F;
  --flame-soft:#FBEDE8;
  --steel:#1F5FD0;
  --grid:rgba(19,22,27,.045);
  --shadow:0 1px 2px rgba(19,22,27,.05), 0 12px 32px rgba(19,22,27,.07);
  --r:14px;
  --maxw:1140px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

@media (prefers-color-scheme: dark){
  :root{
    --paper:#101317;
    --paper-2:#161A20;
    --card:#191D24;
    --ink:#ECEEF1;
    --ink-2:#C3C9D2;
    --muted:#99A2AF;
    --faint:#6E7785;
    --line:#262C35;
    --line-2:#333B46;
    --flame:#FF6A42;
    --flame-soft:#2A1812;
    --steel:#5B92FF;
    --grid:rgba(255,255,255,.04);
    --shadow:0 1px 2px rgba(0,0,0,.4), 0 14px 36px rgba(0,0,0,.35);
  }
}

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}

body{
  background:var(--paper);
  color:var(--ink);
  font-family:"Inter",-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16.5px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

h1,h2,h3,h4{font-family:"Archivo","Inter",sans-serif;font-weight:700;letter-spacing:-.028em;line-height:1.12}
a{color:inherit;text-decoration:none}
ul{list-style:none}
svg{display:block}
code,.mono{font-family:"JetBrains Mono",ui-monospace,Menlo,monospace}

.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* blueprint grid helper */
.grid-bg{
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size:34px 34px;
}

/* ---------- type helpers ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-family:"JetBrains Mono",monospace;
  font-size:11.5px;font-weight:500;letter-spacing:.2em;text-transform:uppercase;
  color:var(--flame);
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--flame)}

.sec{padding:96px 0}
.sec-sm{padding:68px 0}
.head{max-width:620px;margin-bottom:48px}
.head h2{font-size:clamp(27px,3.9vw,42px);margin-top:14px}
.head p{color:var(--muted);margin-top:16px;font-size:17.5px}
.head.mid{margin-inline:auto;text-align:center}
.head.mid .eyebrow{justify-content:center}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  font-weight:600;font-size:15px;
  padding:13px 24px;border-radius:10px;border:1px solid transparent;
  cursor:pointer;transition:transform .22s var(--ease),background .22s,border-color .22s,color .22s;
}
.btn-solid{background:var(--ink);color:var(--paper)}
.btn-solid:hover{background:var(--flame);transform:translateY(-2px)}
.btn-line{border-color:var(--line-2);color:var(--ink);background:transparent}
.btn-line:hover{border-color:var(--ink);transform:translateY(-2px)}
.btn-flame{background:var(--flame);color:#fff}
.btn-flame:hover{transform:translateY(-2px);filter:brightness(1.06)}

/* ---------- reveal ---------- */
.rv{opacity:0;transform:translateY(20px);transition:opacity .62s var(--ease),transform .62s var(--ease)}
.rv.in{opacity:1;transform:none}

/* ============================================================
   HEADER
   ============================================================ */
.top{
  position:sticky;top:0;z-index:90;
  background:color-mix(in srgb, var(--paper) 86%, transparent);
  backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .25s;
}
.top.stuck{border-bottom-color:var(--line)}
.top-row{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px}

.brand{display:flex;align-items:center;gap:11px;font-family:"Archivo",sans-serif;font-weight:700;font-size:17.5px;letter-spacing:-.02em}
.brand-mark{width:34px;height:34px;flex:none}
.brand-mark .bar{transform-origin:center;animation:pulsebar 3.4s var(--ease) infinite}
.brand-mark .bar:nth-child(2){animation-delay:.18s}
.brand-mark .bar:nth-child(3){animation-delay:.36s}
@keyframes pulsebar{0%,70%,100%{transform:scaleY(1)}35%{transform:scaleY(.55)}}

.nav{display:none;gap:30px;font-size:15px;font-weight:500}
@media(min-width:900px){.nav{display:flex}.top-cta{display:inline-flex}}
.nav a{color:var(--muted);position:relative;padding:4px 0;transition:color .2s}
.nav a:hover{color:var(--ink)}
.nav a.on{color:var(--ink);font-weight:600}
.nav a.on::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--flame);border-radius:2px}
.top-cta{display:none}

.menu-btn{display:grid;place-items:center;width:40px;height:40px;border:1px solid var(--line-2);border-radius:10px;background:transparent;cursor:pointer}
.menu-btn span{display:block;width:16px;height:1.8px;background:var(--ink);border-radius:2px;transition:transform .28s,opacity .28s}
.menu-btn span+span{margin-top:4.2px}
.menu-btn.on span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-btn.on span:nth-child(2){opacity:0}
.menu-btn.on span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
@media(min-width:900px){.menu-btn{display:none}}

.sheet{
  position:fixed;top:72px;left:0;right:0;z-index:89;
  background:var(--paper);border-bottom:1px solid var(--line);
  max-height:0;overflow:hidden;transition:max-height .36s var(--ease);
}
.sheet.open{max-height:400px}
.sheet ul{padding:10px 24px 24px}
.sheet li+li{border-top:1px solid var(--line)}
.sheet a{display:block;padding:15px 0;color:var(--ink-2);font-size:16px}
.sheet a.on{color:var(--flame);font-weight:600}

/* ============================================================
   HERO
   ============================================================ */
.hero{position:relative;padding:76px 0 72px;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size:34px 34px;
  mask:radial-gradient(120% 90% at 20% 0%, #000 10%, transparent 72%);
}
.hero .wrap{position:relative;z-index:1}
.hero-grid{display:grid;gap:54px;align-items:start}
@media(min-width:980px){.hero-grid{grid-template-columns:1.02fr .98fr;gap:56px;align-items:center}}

.hero h1{font-size:clamp(36px,5.6vw,62px)}
.hero h1 mark{background:none;color:var(--flame)}
.hero .lead{color:var(--muted);font-size:clamp(16.5px,1.9vw,19.5px);margin-top:22px;max-width:50ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}

.hero-facts{display:flex;flex-wrap:wrap;gap:8px;margin-top:34px}
.fact{
  font-family:"JetBrains Mono",monospace;font-size:12px;letter-spacing:.02em;
  color:var(--ink-2);background:var(--card);
  border:1px solid var(--line);border-radius:7px;padding:7px 12px;
}
.fact b{color:var(--flame);font-weight:500}

/* ============================================================
   TOOL WIDGET
   ============================================================ */
.tool{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  box-shadow:var(--shadow);overflow:hidden;
}
.tool-bar{display:flex;align-items:center;gap:8px;padding:12px 16px;border-bottom:1px solid var(--line);background:var(--paper-2)}
.tool-bar .dot{width:9px;height:9px;border-radius:50%;background:var(--line-2)}
.tool-bar .dot:first-child{background:var(--flame)}
.tool-bar .ttl{margin-left:6px;font-family:"JetBrains Mono",monospace;font-size:12px;color:var(--muted);letter-spacing:.02em}

.tool-tabs{display:flex;border-bottom:1px solid var(--line)}
.tool-tabs button{
  flex:1;background:transparent;border:0;cursor:pointer;
  font-family:"JetBrains Mono",monospace;font-size:12px;letter-spacing:.04em;
  color:var(--muted);padding:13px 6px;position:relative;transition:color .2s;
}
.tool-tabs button:hover{color:var(--ink)}
.tool-tabs button[aria-selected="true"]{color:var(--ink)}
.tool-tabs button[aria-selected="true"]::after{content:"";position:absolute;left:14%;right:14%;bottom:-1px;height:2px;background:var(--flame)}

.tool-body{padding:22px 20px 24px;min-height:252px}
.panel{display:none}
.panel.on{display:block;animation:fade .3s var(--ease)}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

.fld{margin-bottom:14px}
.fld label{display:block;font-family:"JetBrains Mono",monospace;font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--faint);margin-bottom:7px}
.fld input,.fld textarea,.fld select{
  width:100%;background:var(--paper);color:var(--ink);
  border:1px solid var(--line-2);border-radius:9px;
  padding:11px 13px;font-size:15px;font-family:inherit;
  transition:border-color .2s,box-shadow .2s;
}
.fld textarea{resize:vertical;min-height:74px;line-height:1.55}
.fld input:focus,.fld textarea:focus,.fld select:focus{outline:0;border-color:var(--flame);box-shadow:0 0 0 3px var(--flame-soft)}

.out{background:var(--paper-2);border:1px solid var(--line);border-radius:9px;padding:13px 15px;margin-top:4px}
.out .row{display:flex;justify-content:space-between;gap:14px;padding:5px 0;font-size:14px}
.out .row+.row{border-top:1px dashed var(--line-2)}
.out .row span{color:var(--muted)}
.out .row b{font-family:"JetBrains Mono",monospace;font-weight:500;color:var(--ink);text-align:right;word-break:break-all}
.out .row b.hl{color:var(--flame)}

.tool-note{font-family:"JetBrains Mono",monospace;font-size:11px;color:var(--faint);text-align:center;padding:0 20px 18px;letter-spacing:.02em}

/* ============================================================
   CARDS / GRIDS
   ============================================================ */
.cards{display:grid;gap:18px;grid-template-columns:1fr}
@media(min-width:680px){.cards{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1000px){.cards.c3{grid-template-columns:repeat(3,1fr)}}

.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  padding:28px 26px;transition:transform .26s var(--ease),border-color .26s,box-shadow .26s;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:var(--shadow)}
.card .ic{width:44px;height:44px;border-radius:11px;background:var(--flame-soft);display:grid;place-items:center;margin-bottom:17px}
.card .ic svg{width:21px;height:21px;stroke:var(--flame);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.card h3{font-size:19px;margin-bottom:9px}
.card p{color:var(--muted);font-size:15.5px}
.card .tag{display:inline-block;margin-top:15px;font-family:"JetBrains Mono",monospace;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--faint)}

/* principle list (numbered) */
.rules{counter-reset:r;display:grid;gap:0}
.rule{
  counter-increment:r;position:relative;
  display:grid;gap:6px 24px;grid-template-columns:1fr;
  padding:28px 0;border-top:1px solid var(--line);
}
@media(min-width:800px){.rule{grid-template-columns:72px 1fr 1.25fr;align-items:start}}
.rule:last-child{border-bottom:1px solid var(--line)}
.rule .no{font-family:"JetBrains Mono",monospace;font-size:12.5px;color:var(--flame);letter-spacing:.06em}
.rule .no::before{content:counter(r,decimal-leading-zero)}
.rule h3{font-size:20px}
.rule p{color:var(--muted);font-size:16px}

/* split blocks */
.split{display:grid;gap:44px}
@media(min-width:900px){.split{grid-template-columns:1fr 1fr;gap:64px;align-items:center}}
.split p{color:var(--muted);font-size:17px}
.split p+p{margin-top:15px}
.split strong{color:var(--ink);font-weight:600}

/* checklist */
.checks li{display:flex;gap:14px;padding:15px 0;border-bottom:1px solid var(--line)}
.checks li:last-child{border-bottom:0}
.checks svg{width:20px;height:20px;flex:none;stroke:var(--flame);fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;margin-top:3px}
.checks b{display:block;font-weight:600;margin-bottom:2px}
.checks span{color:var(--muted);font-size:15.5px}

/* callout */
.callout{
  background:var(--paper-2);border:1px solid var(--line);
  border-left:3px solid var(--flame);border-radius:12px;
  padding:22px 26px;
}
.callout p{color:var(--ink-2);font-size:16.5px}
.callout p+p{margin-top:12px}

/* page banner (inner pages) */
.banner{position:relative;padding:62px 0 46px;border-bottom:1px solid var(--line);overflow:hidden}
.banner::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:34px 34px;
  mask:radial-gradient(90% 120% at 85% 0%, #000, transparent 70%);
}
.banner .wrap{position:relative}
.banner h1{font-size:clamp(31px,4.8vw,52px);margin-top:14px}
.banner p{color:var(--muted);font-size:18px;margin-top:16px;max-width:58ch}

/* CTA strip */
.cta{background:var(--ink);color:var(--paper);border-radius:18px;padding:56px 36px;text-align:center;position:relative;overflow:hidden}
.cta::before{
  content:"";position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:34px 34px;
  mask:radial-gradient(70% 90% at 50% 0%, #000, transparent 72%);
}
.cta>*{position:relative}
.cta h2{font-size:clamp(25px,3.6vw,38px)}
.cta p{color:#B9BEC7;margin:14px auto 28px;max-width:46ch;font-size:16.5px}
.cta .btn-flame:hover{filter:brightness(1.1)}

/* mail link */
.mail{
  display:inline-flex;align-items:center;gap:11px;
  font-family:"JetBrains Mono",monospace;font-size:clamp(15px,2.2vw,19px);
  border:1px solid var(--line-2);border-radius:11px;padding:14px 22px;
  background:var(--card);transition:border-color .22s,transform .22s var(--ease);
}
.mail:hover{border-color:var(--flame);transform:translateY(-2px)}
.mail svg{width:19px;height:19px;stroke:var(--flame);fill:none;stroke-width:1.8}

/* ============================================================
   FOOTER
   ============================================================ */
.foot{border-top:1px solid var(--line);background:var(--paper-2);padding:52px 0 28px;margin-top:40px}
.foot-grid{display:grid;gap:32px;padding-bottom:30px;border-bottom:1px solid var(--line)}
@media(min-width:760px){.foot-grid{grid-template-columns:1.7fr 1fr 1fr}}
.foot-grid p{color:var(--muted);font-size:14.5px;margin-top:13px;max-width:36ch}
.foot h4{font-family:"JetBrains Mono",monospace;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);margin-bottom:14px;font-weight:500}
.foot li{margin-bottom:10px}
.foot li a{color:var(--muted);font-size:14.5px;transition:color .2s}
.foot li a:hover{color:var(--flame)}
.foot-end{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;padding-top:24px;font-size:13px;color:var(--faint)}

/* ============================================================
   LEGAL / PROSE
   ============================================================ */
.prose{max-width:820px;padding:52px 0 80px}
.prose h2{font-size:22px;margin:36px 0 12px}
.prose h3{font-size:17.5px;margin:24px 0 9px}
.prose p,.prose li{color:var(--muted);font-size:16.5px}
.prose p{margin-bottom:13px}
.prose ul{margin-bottom:17px}
.prose li{position:relative;padding-left:21px;margin-bottom:8px}
.prose li::before{content:"";position:absolute;left:3px;top:11px;width:6px;height:6px;border-radius:2px;background:var(--flame)}
.prose a{color:var(--flame);border-bottom:1px solid color-mix(in srgb, var(--flame) 35%, transparent)}
.prose .upd{font-family:"JetBrains Mono",monospace;font-size:12.5px;color:var(--faint);margin-bottom:8px}

/* ============================================================
   MOTION PREFERENCE
   ============================================================ */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  .rv{opacity:1;transform:none}
  html{scroll-behavior:auto}
}