/* ============================================================
   Discipline OS — "Stoic editorial" design system
   Dark charcoal · warm bone · aged brass · type-led restraint
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300..900;1,9..144,300..600&family=Newsreader:ital,opsz,wght@0,6..72,300..600;1,6..72,300..500&family=Archivo:wght@500;600;700&display=swap');

:root{
  --ink:#100f0d;          /* near-black, warm */
  --ink-raise:#17150f;
  --bone:#e9e3d6;         /* warm off-white text */
  --bone-dim:#b6af9f;
  --muted:#8b8475;
  --brass:#c4a86c;        /* aged-gold accent */
  --brass-bright:#ddc794;
  --oxblood:#9a4334;      /* rare tension accent */
  --line:#29261f;
  --line-bright:#3a352b;
  --display:"Fraunces",Georgia,"Times New Roman",serif;
  --serif:"Newsreader",Georgia,serif;
  --label:"Archivo",system-ui,sans-serif;
  --measure:38rem;
  --pad:clamp(1.25rem,5vw,2.75rem);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--ink);
  color:var(--bone);
  font-family:var(--serif);
  font-size:clamp(1.06rem,.55rem + 1.1vw,1.2rem);
  line-height:1.64;
  font-optical-sizing:auto;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}

/* film grain overlay */
body::after{
  content:"";position:fixed;inset:0;z-index:9999;pointer-events:none;
  opacity:.045;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---- layout ---- */
.wrap{max-width:72rem;margin-inline:auto;padding-inline:var(--pad)}
.measure{max-width:var(--measure);margin-inline:auto}
section{padding-block:clamp(3rem,7vw,5.5rem)}
.rule{height:1px;background:var(--line);border:0;margin-block:clamp(2rem,5vw,3.5rem)}

/* ---- type ---- */
h1,h2,h3{font-family:var(--display);font-weight:540;line-height:1.06;letter-spacing:-.012em}
h1{font-size:clamp(2.4rem,1.2rem + 4.6vw,4.6rem);font-weight:560}
h2{font-size:clamp(1.7rem,1rem + 2.6vw,2.7rem);margin-bottom:.6em}
h3{font-size:clamp(1.25rem,1rem + 1vw,1.55rem);margin-bottom:.35em}
p{margin-bottom:1.15em;color:var(--bone)}
p.lead{font-size:1.18em;color:var(--bone)}
.dim{color:var(--bone-dim)}
strong,b{font-weight:600;color:var(--brass-bright)}
em{font-style:italic}
a{color:var(--brass);text-decoration:none;text-underline-offset:3px;
  background-image:linear-gradient(var(--brass),var(--brass));
  background-size:0% 1px;background-repeat:no-repeat;background-position:0 100%;
  transition:background-size .3s ease}
a:hover{background-size:100% 1px}

.eyebrow{font-family:var(--label);text-transform:uppercase;font-weight:600;
  letter-spacing:.22em;font-size:.72rem;color:var(--brass);display:inline-block;margin-bottom:1.1rem}
.kicker{font-family:var(--label);text-transform:uppercase;letter-spacing:.16em;
  font-size:.7rem;color:var(--muted);font-weight:600}

/* ---- masthead / nav ---- */
.masthead{border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50;
  background:color-mix(in oklab,var(--ink) 88%,transparent);backdrop-filter:blur(8px)}
.masthead .wrap{display:flex;align-items:center;justify-content:space-between;
  padding-block:1rem;gap:1rem}
.brand{font-family:var(--display);font-weight:600;font-size:1.18rem;letter-spacing:-.01em;color:var(--bone)}
.brand a{background:none;color:inherit}
.brand .mark{color:var(--brass)}
.masthead nav{font-family:var(--label);font-size:.78rem;text-transform:uppercase;
  letter-spacing:.14em;display:flex;gap:1.6rem}
.masthead nav a{color:var(--bone-dim);background:none}
.masthead nav a:hover{color:var(--brass)}

/* ---- buttons ---- */
.btn{display:inline-flex;align-items:center;gap:.6rem;font-family:var(--label);
  font-weight:700;text-transform:uppercase;letter-spacing:.1em;font-size:.82rem;
  padding:1rem 1.7rem;border:1px solid var(--brass);color:var(--ink);
  background:var(--brass);border-radius:2px;cursor:pointer;background-image:none;
  transition:transform .2s ease,box-shadow .25s ease,background-color .2s}
.btn:hover{background:var(--brass-bright);transform:translateY(-2px);
  box-shadow:0 12px 30px -12px rgba(196,168,108,.5)}
.btn .arrow{transition:transform .2s}
.btn:hover .arrow{transform:translateX(4px)}
.btn-ghost{background:transparent;color:var(--brass);background-image:none}
.btn-ghost:hover{background:rgba(196,168,108,.08);color:var(--brass-bright)}
.price-note{font-family:var(--label);font-size:.72rem;letter-spacing:.06em;
  text-transform:uppercase;color:var(--muted);margin-top:.9rem}

/* ---- hero ---- */
.hero{padding-block:clamp(3.5rem,9vw,7rem)}
.hero h1{max-width:16ch}
.hero .sub{font-size:clamp(1.15rem,1rem + .9vw,1.45rem);color:var(--bone-dim);
  max-width:40ch;margin-block:1.5rem 2.2rem;font-weight:300}

/* ---- editorial / advertorial article ---- */
.article{max-width:var(--measure);margin-inline:auto}
.article .byline{font-family:var(--label);font-size:.74rem;text-transform:uppercase;
  letter-spacing:.14em;color:var(--muted);border-block:1px solid var(--line);
  padding-block:.7rem;margin-block:1.5rem 2.5rem;display:flex;justify-content:space-between}
.article h1{font-size:clamp(2rem,1.2rem + 3vw,3.2rem);margin-bottom:.4em}
.article p:first-of-type::first-letter{font-family:var(--display);font-weight:600;
  font-size:3.4em;float:left;line-height:.8;padding:.06em .12em 0 0;color:var(--brass)}
.pull{font-family:var(--display);font-size:clamp(1.4rem,1rem + 1.6vw,2rem);
  line-height:1.2;color:var(--bone);border-left:2px solid var(--brass);
  padding-left:1.4rem;margin-block:2rem;font-style:italic}

/* ---- offer / cards ---- */
.offer{background:var(--ink-raise);border:1px solid var(--line-bright);
  border-radius:4px;padding:clamp(1.6rem,4vw,2.6rem);max-width:42rem;margin-inline:auto;
  box-shadow:0 30px 60px -30px rgba(0,0,0,.6)}
.offer .price{font-family:var(--display);font-size:3.2rem;font-weight:600;color:var(--brass-bright);line-height:1}
.offer .strike{font-size:1.1rem;color:var(--muted);text-decoration:line-through;margin-left:.6rem}
.includes{list-style:none;margin-block:1.5rem}
.includes li{padding:.7rem 0 .7rem 2rem;border-top:1px solid var(--line);position:relative}
.includes li:first-child{border-top:0}
.includes li::before{content:"";position:absolute;left:0;top:1.05rem;width:.7rem;height:.7rem;
  border:1px solid var(--brass);transform:rotate(45deg)}
.includes b{display:block;color:var(--brass-bright);font-family:var(--display);font-weight:540;font-size:1.08rem}
.guarantee{border:1px dashed var(--line-bright);border-radius:4px;padding:1.4rem 1.6rem;
  background:rgba(154,67,52,.05);margin-block:2rem;font-size:.98em}
.three{display:grid;gap:1.5rem;grid-template-columns:repeat(auto-fit,minmax(15rem,1fr));margin-top:2rem}
.three .col{border-top:2px solid var(--brass);padding-top:1.1rem}
.three .num{font-family:var(--display);color:var(--brass);font-size:2.4rem;font-weight:600;line-height:1}

/* ---- statement image (duotone classical) ---- */
.statement{position:relative;margin:0;background:var(--ink);overflow:hidden;border-block:1px solid var(--line)}
.statement img{display:block;width:100%;height:clamp(19rem,46vh,33rem);object-fit:cover;
  object-position:50% 26%;filter:grayscale(1) contrast(1.07) brightness(.9);
  mix-blend-mode:luminosity;opacity:.92}
.statement::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(16,15,13,.5),rgba(16,15,13,.08) 38%,rgba(16,15,13,.94)),
    radial-gradient(70% 60% at 72% 22%,rgba(196,168,108,.16),transparent 64%)}
.statement figcaption{position:absolute;left:var(--pad);bottom:.9rem;z-index:2;
  font-family:var(--label);font-size:.62rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}

/* ---- baseline diagram (the OS motif) ---- */
.diagram{position:relative;margin:0;border-block:1px solid var(--line);background:var(--ink);
  overflow:hidden;padding:clamp(2rem,5vw,3.4rem) var(--pad)}
.diagram .grid{position:absolute;inset:0;opacity:.45;pointer-events:none;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:46px 46px;
  -webkit-mask-image:radial-gradient(120% 110% at 50% 38%,#000 38%,transparent 82%);
  mask-image:radial-gradient(120% 110% at 50% 38%,#000 38%,transparent 82%)}
.diagram svg{display:block;width:100%;max-width:60rem;height:auto;margin-inline:auto;position:relative;z-index:1;overflow:visible}
.diagram .base{stroke:var(--muted);stroke-width:1;stroke-dasharray:3 6}
.diagram .curve{fill:none;stroke:var(--brass);stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round;
  filter:drop-shadow(0 0 7px rgba(196,168,108,.45));stroke-dasharray:1500;stroke-dashoffset:0}
html.js .diagram .curve{stroke-dashoffset:1500;transition:stroke-dashoffset 2.8s cubic-bezier(.33,.55,.2,1)}
html.js .diagram.in .curve{stroke-dashoffset:0}
.diagram .dot{fill:var(--brass)}
.diagram text{font-family:var(--label);fill:var(--muted);font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase}
.diagram text.hi{fill:var(--brass-bright)}
.diagram-cap{text-align:center;margin-top:1rem;font-family:var(--label);font-size:.62rem;
  letter-spacing:.2em;text-transform:uppercase;color:var(--muted)}
@media(prefers-reduced-motion:reduce){html.js .diagram .curve{transition:none;stroke-dashoffset:0}}
@media(max-width:560px){.diagram text{font-size:14px}}

/* ---- footer ---- */
footer{border-top:1px solid var(--line);padding-block:3rem;margin-top:2rem;color:var(--muted)}
footer .wrap{display:flex;flex-wrap:wrap;gap:1.5rem;justify-content:space-between;align-items:start}
footer nav{display:flex;flex-wrap:wrap;gap:1.3rem;font-family:var(--label);font-size:.74rem;
  text-transform:uppercase;letter-spacing:.12em}
footer nav a{color:var(--bone-dim);background:none}
footer nav a:hover{color:var(--brass)}
footer .fine{font-size:.8rem;max-width:46ch;line-height:1.5}

/* ---- legal pages ---- */
.legal{max-width:46rem}
.legal h1{margin-bottom:.3em}
.legal h2{font-size:1.3rem;margin-top:2rem;font-family:var(--display)}
.legal p,.legal li{font-size:1rem;color:var(--bone-dim)}
.legal ul{margin:0 0 1.15em 1.3rem}

/* ---- reveal ---- */
[data-reveal]{opacity:0;transform:translateY(18px);
  animation:rise .9s cubic-bezier(.2,.7,.2,1) forwards}
[data-reveal="2"]{animation-delay:.12s}
[data-reveal="3"]{animation-delay:.24s}
[data-reveal="4"]{animation-delay:.36s}
@keyframes rise{to{opacity:1;transform:none}}
@media(prefers-reduced-motion:reduce){[data-reveal]{animation:none;opacity:1;transform:none}}

:focus-visible{outline:2px solid var(--brass);outline-offset:3px}
::selection{background:var(--brass);color:var(--ink)}

@media(max-width:640px){
  .masthead nav{display:none}
  .article p:first-of-type::first-letter{font-size:2.8em}
}