/* ============================================================
   TrailMail — landing site
   ============================================================ */

:root{
  --bg:#05060d;
  --bg-soft:#080b1a;
  --ink:#eef2ff;
  --muted:#aab3d4;
  --muted-dim:#8a92b6;
  --blue:#0A84FF;
  --indigo:#5E5CE6;
  --violet:#7c5cff;
  --mint:#34d3a6;
  --warn:#ffb347;
  --line:rgba(255,255,255,.09);
  --glass:rgba(255,255,255,.045);
  --glass-2:rgba(255,255,255,.07);
  --shadow:0 30px 80px -30px rgba(0,0,0,.8);
  --max:1160px;
  --ease:cubic-bezier(.22,1,.36,1);
  --font-d:"Space Grotesk",-apple-system,BlinkMacSystemFont,sans-serif;
  --font-b:"Inter",-apple-system,BlinkMacSystemFont,sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:auto}
html.lenis,html.lenis body{height:auto}
.lenis.lenis-smooth{scroll-behavior:auto!important}
.lenis.lenis-stopped{overflow:hidden}

body{
  font-family:var(--font-b);
  background:var(--bg);
  color:var(--ink);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  cursor:none;
}
@media (hover:none){ body{cursor:auto} }

::selection{background:var(--indigo);color:#fff}

a{color:inherit;text-decoration:none}
em{font-style:normal;background:linear-gradient(120deg,var(--blue),var(--violet));-webkit-background-clip:text;background-clip:text;color:transparent}
code{font-family:ui-monospace,Menlo,monospace;font-size:.85em;background:rgba(124,92,255,.16);border:1px solid rgba(124,92,255,.3);padding:.08em .4em;border-radius:6px;color:#cfd6ff}

/* ---------- Layout ---------- */
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 28px}
.section{position:relative;padding:clamp(90px,14vh,170px) 0;z-index:2;
  background:rgba(7,9,20,.78);backdrop-filter:blur(10px) saturate(120%);-webkit-backdrop-filter:blur(10px) saturate(120%)}
/* soften the seam where the first content section meets the transparent hero */
.hero + .section::before{content:"";position:absolute;left:0;right:0;top:-90px;height:90px;pointer-events:none;
  background:linear-gradient(180deg,transparent,rgba(7,9,20,.78))}

/* ---------- 3D canvas ---------- */
.scene{position:fixed;inset:0;width:100vw;height:100vh;z-index:0;display:block;pointer-events:none}
.scene-fallback{position:fixed;inset:0;z-index:-1;
  background:
    radial-gradient(120% 90% at 82% -12%,rgba(124,92,255,.30),transparent 52%),
    radial-gradient(90% 70% at 8% 2%,rgba(10,132,255,.22),transparent 52%),
    radial-gradient(120% 80% at 50% 116%,rgba(52,211,166,.12),transparent 55%),
    linear-gradient(180deg,#070920 0%,#05060d 60%,#04050b 100%);
}

/* ---- Color grade overlays (sit above canvas, below content) ---- */
/* readability veil + bottom grade */
body::after{content:"";position:fixed;inset:0;z-index:1;pointer-events:none;
  background:
    linear-gradient(180deg,rgba(7,9,26,.28) 0%,rgba(5,6,13,0) 26%,rgba(5,6,13,0) 64%,rgba(4,5,11,.62) 100%);}
/* cinematic vignette + cool/warm tint */
body::before{content:"";position:fixed;inset:0;z-index:1;pointer-events:none;
  background:
    radial-gradient(130% 120% at 50% 42%,transparent 52%,rgba(3,4,10,.55) 100%),
    radial-gradient(80% 60% at 78% 8%,rgba(124,92,255,.10),transparent 60%);
  mix-blend-mode:normal;}
/* film grain */
.grain{position:fixed;inset:-50%;z-index:1;pointer-events:none;opacity:.05;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='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation:grain 7s steps(6) infinite}
@keyframes grain{
  0%{transform:translate(0,0)}10%{transform:translate(-3%,-4%)}30%{transform:translate(2%,-2%)}
  50%{transform:translate(-2%,3%)}70%{transform:translate(3%,1%)}90%{transform:translate(-1%,-3%)}100%{transform:translate(0,0)}}

/* ---------- Cursor ---------- */
.cursor,.cursor-dot{position:fixed;top:0;left:0;z-index:9999;pointer-events:none;border-radius:50%;mix-blend-mode:difference}
.cursor{width:38px;height:38px;border:1.5px solid #fff;transform:translate(-50%,-50%);transition:width .25s var(--ease),height .25s var(--ease),background .25s,opacity .25s}
.cursor-dot{width:5px;height:5px;background:#fff;transform:translate(-50%,-50%)}
.cursor.is-hover{width:64px;height:64px;background:rgba(255,255,255,.12);border-color:transparent}
.cursor.is-cta{width:84px;height:84px;background:#fff}
.cursor.is-hidden{opacity:0}
@media (hover:none){.cursor,.cursor-dot{display:none}}

/* ---------- Scroll progress ---------- */
.scroll-progress{position:fixed;top:0;left:0;height:3px;width:0;z-index:9000;
  background:linear-gradient(90deg,var(--blue),var(--violet),var(--mint));
  box-shadow:0 0 18px rgba(124,92,255,.7)}

/* ---------- Preloader ---------- */
.preloader{position:fixed;inset:0;z-index:10000;background:var(--bg);display:flex;align-items:center;justify-content:center;transition:opacity .8s var(--ease),visibility .8s}
.preloader.done{opacity:0;visibility:hidden}
.preloader__inner{display:flex;flex-direction:column;align-items:center;gap:22px}
.preloader__mark{width:72px;height:72px;filter:drop-shadow(0 10px 30px rgba(94,92,230,.6));animation:bob 2s ease-in-out infinite}
@keyframes bob{50%{transform:translateY(-10px)}}
.preloader__bar{width:200px;height:3px;background:rgba(255,255,255,.1);border-radius:3px;overflow:hidden}
.preloader__bar span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--blue),var(--violet));transition:width .2s linear}
.preloader__pct{font-family:var(--font-d);font-size:13px;letter-spacing:.2em;color:var(--muted)}

/* ---------- Buttons ---------- */
.btn{position:relative;display:inline-flex;align-items:center;gap:10px;font-family:var(--font-d);
  font-weight:600;font-size:15px;border-radius:100px;padding:14px 24px;border:1px solid transparent;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),background .3s;will-change:transform}
.btn__arrow{width:18px;height:18px;transition:transform .3s var(--ease)}
.btn:hover .btn__arrow{transform:translateX(4px)}
.btn__chrome{width:20px;height:20px}
.btn--primary{color:#fff;background:linear-gradient(120deg,var(--blue),var(--violet) 60%,#9b6bff);
  background-size:160% 100%;background-position:0% 0;
  box-shadow:0 12px 34px -10px rgba(94,92,230,.7),inset 0 1px 0 rgba(255,255,255,.3);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),background-position .6s var(--ease)}
.btn--primary:hover{background-position:100% 0;box-shadow:0 18px 54px -12px rgba(124,92,255,1),inset 0 1px 0 rgba(255,255,255,.45)}
/* sheen sweep */
.btn--primary::after{content:"";position:absolute;inset:0;border-radius:inherit;overflow:hidden;
  background:linear-gradient(105deg,transparent 30%,rgba(255,255,255,.45) 48%,transparent 60%);
  transform:translateX(-130%);transition:transform .7s var(--ease);pointer-events:none}
.btn--primary:hover::after{transform:translateX(130%)}
.btn--ghost{color:var(--ink);background:var(--glass);border-color:var(--line);backdrop-filter:blur(12px)}
.btn--ghost:hover{background:var(--glass-2)}
.btn--lg{padding:17px 30px;font-size:16px}
.btn--xl{padding:22px 40px;font-size:19px}
.btn--nav{padding:11px 20px;font-size:14px;color:#fff;background:linear-gradient(120deg,var(--blue),var(--violet));box-shadow:0 8px 22px -8px rgba(94,92,230,.7)}

/* ---------- Nav ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:8000;display:flex;align-items:center;justify-content:space-between;
  padding:20px clamp(20px,4vw,46px);transition:padding .4s var(--ease),background .4s,backdrop-filter .4s,border-color .4s;border-bottom:1px solid transparent}
.nav.scrolled{padding:12px clamp(20px,4vw,46px);background:rgba(7,9,20,.6);backdrop-filter:blur(18px) saturate(160%);border-bottom-color:var(--line)}
.nav__brand{display:flex;align-items:center;gap:11px}
.nav__logo{width:34px;height:34px;border-radius:10px;overflow:hidden;display:block;box-shadow:0 6px 16px -4px rgba(94,92,230,.6);flex:none}
.nav__logo svg{display:block;width:100%;height:100%}
.nav__name{font-family:var(--font-d);font-weight:700;font-size:19px;letter-spacing:-.02em}
.nav__links{display:flex;gap:30px}
.nav__links a{font-size:14.5px;color:var(--muted);position:relative;transition:color .3s}
.nav__links a::after{content:"";position:absolute;left:0;bottom:-5px;height:1.5px;width:0;background:var(--ink);transition:width .3s var(--ease)}
.nav__links a:hover{color:var(--ink)}
.nav__links a:hover::after{width:100%}
@media (max-width:880px){.nav__links{display:none}}
/* backdrop blur is expensive on phones; keep the solid bg, drop the blur */
@media (max-width:760px){.section{backdrop-filter:none;-webkit-backdrop-filter:none;background:rgba(7,9,20,.9)}}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;z-index:2;padding:120px 0 80px}
/* dark scrim behind hero copy so it reads over the live 3D */
.hero::before{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(75% 70% at 32% 46%,rgba(4,5,12,.72),rgba(4,5,12,.28) 55%,transparent 78%)}
.hero__inner{max-width:var(--max);margin:0 auto;padding:0 28px;width:100%}
.pill{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-d);font-size:13px;letter-spacing:.02em;
  padding:8px 16px;border-radius:100px;background:var(--glass);border:1px solid var(--line);backdrop-filter:blur(12px);color:var(--muted)}
.hero__eyebrow{margin-bottom:26px}
.hero__title{font-family:var(--font-d);font-weight:700;letter-spacing:-.04em;line-height:.96;
  font-size:clamp(48px,9vw,128px);filter:drop-shadow(0 6px 34px rgba(0,0,0,.55))}
.hero__title .line{display:block;overflow:hidden}
.hero__title .line>span{display:block;will-change:transform}
.hero__sub{max-width:560px;margin:30px 0 0;font-size:clamp(17px,2vw,21px);line-height:1.6;color:var(--muted)}
.hero__sub strong{color:var(--ink);font-weight:600}
.hero__cta{display:flex;flex-wrap:wrap;gap:16px;margin-top:38px}
.hero__hook{margin-top:34px;font-family:var(--font-d);font-size:clamp(15px,1.8vw,18px);color:var(--muted)}
.hero__hook strong{color:var(--ink)}
.hero__scroll{position:absolute;bottom:34px;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:10px;color:var(--muted-dim);font-family:var(--font-d);font-size:11px;letter-spacing:.3em;text-transform:uppercase}
.hero__scroll-line{width:1px;height:50px;background:rgba(255,255,255,.18);overflow:hidden;position:relative}
.hero__scroll-line i{position:absolute;top:-50%;left:0;width:100%;height:50%;background:linear-gradient(var(--violet),transparent);animation:scrolldown 1.8s var(--ease) infinite}
@keyframes scrolldown{0%{transform:translateY(0)}100%{transform:translateY(300%)}}

/* ---------- Headings / type ---------- */
.kicker{display:inline-block;font-family:var(--font-d);font-size:13px;letter-spacing:.28em;text-transform:uppercase;
  color:var(--violet);margin-bottom:20px;padding-left:34px;position:relative}
.kicker::before{content:"";position:absolute;left:0;top:50%;width:24px;height:1.5px;background:var(--violet)}
.kicker--warn{color:var(--warn)}
.kicker--warn::before{background:var(--warn)}
h2.big{font-family:var(--font-d);font-weight:700;letter-spacing:-.03em;line-height:1.02;font-size:clamp(34px,5.4vw,76px);max-width:14ch}
.lead{max-width:620px;margin-top:26px;font-size:clamp(16px,1.7vw,20px);line-height:1.65;color:var(--muted)}
.lead strong{color:var(--ink);font-weight:600}

/* word/letter reveal */
.reveal-words .word{display:inline-block;overflow:hidden;vertical-align:top}
.reveal-words .word>span{display:inline-block;will-change:transform}
.reveal-fade{will-change:transform,opacity}

/* ---------- Glass primitive ---------- */
.glass{background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.025));border:1px solid var(--line);border-radius:22px;backdrop-filter:blur(16px) saturate(150%);
  box-shadow:var(--shadow);position:relative;overflow:hidden;transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .4s}
.pain:hover,.feat:hover{border-color:rgba(124,92,255,.32);box-shadow:0 40px 90px -34px rgba(94,92,230,.6),var(--shadow)}
/* glow that follows nothing but lifts the card mood on hover */
.pain::after,.feat::after{content:"";position:absolute;inset:0;border-radius:inherit;opacity:0;pointer-events:none;
  background:radial-gradient(60% 60% at 50% 0%,rgba(124,92,255,.18),transparent 70%);transition:opacity .4s}
.pain:hover::after,.feat:hover::after{opacity:1}
.glass::before{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;
  background:linear-gradient(140deg,rgba(255,255,255,.28),rgba(255,255,255,0) 40%);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;opacity:.7}

/* ---------- Problem ---------- */
.pain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:60px}
.pain{padding:34px 30px;transform-style:preserve-3d;transition:transform .3s var(--ease),background .3s}
.pain__num{font-family:var(--font-d);font-size:14px;color:var(--warn);letter-spacing:.2em;margin-bottom:18px}
.pain h3{font-family:var(--font-d);font-size:21px;font-weight:600;letter-spacing:-.01em;margin-bottom:12px;line-height:1.2}
.pain p{color:var(--muted);font-size:15.5px;line-height:1.6}
.pain p em{background:none;-webkit-text-fill-color:var(--ink);color:var(--ink);font-style:normal;font-weight:600}
@media (max-width:840px){.pain-grid{grid-template-columns:1fr}}

/* ---------- Turn / hook ---------- */
.turn{text-align:center}
.turn__inner{display:flex;flex-direction:column;align-items:center}
.turn__line{font-family:var(--font-d);font-weight:700;letter-spacing:-.03em;line-height:1.05;font-size:clamp(30px,5vw,68px);max-width:16ch;margin-bottom:50px}
.turn__stat{display:grid;grid-template-columns:auto auto auto;align-items:center;gap:14px 34px;justify-content:center;margin:10px 0 36px}
.turn__stat-num{font-family:var(--font-d);font-weight:700;font-size:clamp(64px,13vw,150px);line-height:.9;letter-spacing:-.04em;
  background:linear-gradient(120deg,#fff,var(--blue),var(--violet));-webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 10px 40px rgba(94,92,230,.4))}
.turn__stat-num--big{background:linear-gradient(120deg,var(--blue),var(--violet),var(--mint));-webkit-background-clip:text;background-clip:text}
.turn__stat-lbl{grid-row:2;font-family:var(--font-d);font-size:14px;letter-spacing:.06em;color:var(--muted);text-transform:uppercase}
.turn__eq{grid-row:1;font-family:var(--font-d);font-size:clamp(40px,7vw,80px);color:var(--muted-dim);font-weight:300}
@media (max-width:680px){.turn__stat{grid-template-columns:1fr;gap:2px 0}.turn__eq{grid-row:auto;margin:6px 0}.turn__stat-lbl{grid-row:auto;margin-bottom:14px}}

/* ---------- How / steps ---------- */
.how .container{margin-bottom:30px}
.steps{display:flex;flex-direction:column;gap:clamp(60px,10vh,140px);margin-top:70px}
.step{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,5vw,80px);align-items:center;max-width:var(--max);margin:0 auto;padding:0 28px;width:100%}
.step--rev .step__text{order:2}
.step--rev .step__media{order:1}
.step__badge{display:inline-block;font-family:var(--font-d);font-size:13px;letter-spacing:.16em;text-transform:uppercase;
  color:#cdd5ff;background:rgba(124,92,255,.16);border:1px solid rgba(124,92,255,.34);padding:7px 14px;border-radius:100px;margin-bottom:22px}
.step__badge--mint{color:#bdf3e2;background:rgba(52,211,166,.14);border-color:rgba(52,211,166,.34)}
.step__text h3{font-family:var(--font-d);font-weight:600;font-size:clamp(24px,3.2vw,38px);letter-spacing:-.02em;line-height:1.1;margin-bottom:18px}
.step__text p{color:var(--muted);font-size:16.5px;line-height:1.65}
.ticks{list-style:none;margin-top:22px;display:flex;flex-direction:column;gap:12px}
.ticks li{position:relative;padding-left:30px;color:var(--muted);font-size:15px;line-height:1.5}
.ticks li::before{content:"";position:absolute;left:0;top:3px;width:18px;height:18px;border-radius:50%;
  background:radial-gradient(circle at 30% 30%,var(--mint),#13a37a);box-shadow:0 0 14px rgba(52,211,166,.5)}
.ticks li::after{content:"";position:absolute;left:5px;top:8px;width:7px;height:4px;border-left:2px solid #04140e;border-bottom:2px solid #04140e;transform:rotate(-45deg)}
.tag-hi,.tag-md,.tag-lo,.tag-open,.tag-click{font-family:var(--font-d);font-size:.78em;font-weight:600;padding:2px 8px;border-radius:6px;white-space:nowrap}
.tag-hi{color:#bdf3e2;background:rgba(52,211,166,.18)}
.tag-md{color:#ffe2ad;background:rgba(255,179,71,.18)}
.tag-lo{color:#ffc2c2;background:rgba(255,107,107,.16)}
.tag-open{color:#bdf3e2;background:rgba(52,211,166,.18)}
.tag-click{color:#cdd5ff;background:rgba(124,92,255,.18)}

.device{padding:10px;border-radius:20px}
.device img{display:block;width:100%;border-radius:12px}
@media (max-width:840px){.step{grid-template-columns:1fr}.step--rev .step__text{order:1}.step--rev .step__media{order:2}}

/* ---------- Features ---------- */
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:60px}
.feat{padding:30px 26px;transform-style:preserve-3d;transition:transform .3s var(--ease),background .3s}
.feat--wide{grid-column:span 2}
.feat__icon{font-size:30px;margin-bottom:18px;display:block}
.feat h3{font-family:var(--font-d);font-weight:600;font-size:19px;letter-spacing:-.01em;margin-bottom:10px}
.feat p{color:var(--muted);font-size:14.5px;line-height:1.55}
.feat--mint h3{color:#bdf3e2}
@media (max-width:980px){.feat-grid{grid-template-columns:repeat(2,1fr)}.feat--wide{grid-column:span 2}}
@media (max-width:560px){.feat-grid{grid-template-columns:1fr}.feat--wide{grid-column:span 1}}

/* ---------- Why / compare ---------- */
.compare{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:24px;margin-top:60px}
.compare__col{padding:38px 32px}
.compare__head{font-family:var(--font-d);font-weight:600;font-size:15px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:24px}
.compare__head--new{background:linear-gradient(120deg,var(--blue),var(--violet),var(--mint));-webkit-background-clip:text;background-clip:text;color:transparent}
.compare__col ul{list-style:none;display:flex;flex-direction:column;gap:16px}
.compare__col li{display:flex;gap:13px;align-items:flex-start;font-size:16px;line-height:1.45;color:var(--ink)}
.compare__col li span{font-family:var(--font-d);font-weight:700;flex:none;width:22px;height:22px;border-radius:50%;display:grid;place-items:center;font-size:12px;margin-top:1px}
.compare__col--old{opacity:.82}
.compare__col--old li{color:var(--muted)}
.compare__col--old li span{background:rgba(255,107,107,.14);color:#ff9b9b}
.compare__col--new li span{background:rgba(52,211,166,.18);color:var(--mint)}
.compare__col--new{box-shadow:0 30px 90px -30px rgba(94,92,230,.6),var(--shadow)}
.compare__vs{font-family:var(--font-d);font-size:20px;color:var(--muted-dim);text-align:center}
@media (max-width:840px){.compare{grid-template-columns:1fr}.compare__vs{padding:6px 0}}

/* ---------- Showcase ---------- */
.showcase{text-align:center}
.showcase__frame{display:inline-block;padding:14px;border-radius:26px;max-width:920px;width:100%}
.showcase__frame img{display:block;width:100%;border-radius:16px}
.showcase__cap{margin:30px auto 0;max-width:520px;color:var(--muted);font-size:16px}

/* ---------- Final CTA ---------- */
.cta{text-align:center}
.cta__inner{display:flex;flex-direction:column;align-items:center}
.cta__title{font-family:var(--font-d);font-weight:700;letter-spacing:-.03em;line-height:1.02;font-size:clamp(38px,7vw,96px);max-width:16ch}
.cta .lead{text-align:center;margin-bottom:40px}
.cta__fine{margin-top:24px;font-size:13px;color:var(--muted-dim);max-width:560px}

/* ---------- Footer ---------- */
.footer{position:relative;z-index:2;border-top:1px solid var(--line);padding:60px 0 40px;background:rgba(6,8,16,.86);backdrop-filter:blur(12px)}
.footer__inner{display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap}
.footer__brand{display:flex;align-items:center;gap:14px}
.footer__brand strong{font-family:var(--font-d);font-size:18px}
.footer__brand p{color:var(--muted);font-size:14px}
.footer__links{display:flex;gap:28px}
.footer__links a{color:var(--muted);font-size:14.5px;transition:color .3s}
.footer__links a:hover{color:var(--ink)}
.footer__fine{margin-top:34px;color:var(--muted-dim);font-size:12.5px}

/* ---------- Motion-in defaults (JS adds .is-in) ---------- */
.reveal-fade{opacity:0;transform:translateY(26px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal-fade.is-in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal-fade{opacity:1;transform:none}
  body{cursor:auto}
  .cursor,.cursor-dot,.scene,.grain{display:none}
  .scene-fallback{z-index:0}
}