/* grain — Palette B (monocromatica). Base condivisa da tutte le pagine. */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  /* superfici */
  --bg:#F8F8F7;--bg2:#F2F2F1;--bg3:#EBEBEA;
  /* linee */
  --line:rgba(0,0,0,.07);--line2:rgba(0,0,0,.14);
  /* testo */
  --ink:#111111;--ink2:#444444;--muted:#999999;--muted2:#CCCCCC;--tag:#555555;
  /* font */
  --mono:'DM Mono',monospace;--sans:'Space Grotesk',sans-serif;
  /* alias retro-compatibili (puntano a valori monocromatici) */
  --serif:var(--sans);--chalk:var(--bg);--paper:var(--bg2);--dust:var(--bg3);
  --ash:var(--muted);--graphite:var(--ink2);--terra:var(--ink);
}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--mono);-webkit-font-smoothing:antialiased;overflow-x:hidden}

/* scroll indicator */
.scroll-bar{position:fixed;top:0;left:0;height:2px;background:var(--ink);z-index:1000;width:0%;transition:width .1s linear}

/* NAV */
nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  padding:0 48px;height:56px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:rgba(248,248,247,.92);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-logo{display:flex;align-items:center;gap:0;text-decoration:none}
.nav-wm,.nav-wordmark{font-family:var(--sans);font-size:18px;font-weight:700;color:var(--ink);letter-spacing:-.04em}
.nav-dot{display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--ink);margin-left:2px;margin-bottom:4px}
.nav-center,.nav-links{display:flex;gap:28px;list-style:none}
.nav-center a,.nav-links a{font-size:12px;color:var(--muted);text-decoration:none;transition:color .2s;letter-spacing:.02em}
.nav-center a:hover,.nav-links a:hover{color:var(--ink)}
.nav-right{display:flex;align-items:center;gap:10px}

/* lang toggle */
.lang-toggle{display:flex;border:1px solid var(--line2);border-radius:20px;overflow:hidden}
.lang-btn{font-family:var(--mono);font-size:11px;padding:5px 10px;cursor:pointer;border:none;background:transparent;color:var(--muted);transition:all .2s;letter-spacing:.04em;text-decoration:none;display:inline-block}
.lang-btn.active{background:var(--ink);color:#fff}

/* nav cta + back */
.nav-cta,.btn-nav.solid{font-family:var(--mono);font-size:11px;padding:7px 16px;border-radius:40px;background:var(--ink);color:#fff;text-decoration:none;cursor:pointer;transition:all .2s;letter-spacing:.02em;border:1px solid var(--ink)}
.nav-cta:hover,.btn-nav.solid:hover{background:var(--ink2);border-color:var(--ink2)}
.btn-nav{font-family:var(--mono);font-size:11px;padding:7px 16px;border-radius:40px;border:1px solid var(--line2);background:transparent;color:var(--ink2);text-decoration:none;cursor:pointer;transition:all .2s;letter-spacing:.02em}
.btn-nav:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.nav-back{font-family:var(--mono);font-size:12px;color:var(--muted);text-decoration:none;display:flex;align-items:center;gap:5px;transition:color .2s;letter-spacing:.02em}
.nav-back:hover{color:var(--ink)}

/* HERO */
.hero{
  min-height:100vh;padding:120px 48px 80px;
  display:flex;flex-direction:column;align-items:center;
  text-align:center;position:relative;overflow:hidden;
}
.hero-content{animation:fadeUp .7s ease both}
.hero-eyebrow{
  font-family:var(--mono);font-size:10px;color:var(--muted);
  letter-spacing:.1em;text-transform:uppercase;
  margin-bottom:28px;display:flex;align-items:center;justify-content:center;gap:10px;
}
.hero-eyebrow::before,.hero-eyebrow::after{content:'';display:block;width:24px;height:1px;background:var(--line2)}
.hero-h1{
  font-family:var(--sans);font-size:clamp(48px,7vw,88px);
  font-weight:700;line-height:1.0;letter-spacing:-.04em;color:var(--ink);
  margin-bottom:24px;
}
.hero-h1 em{font-style:normal;color:var(--ink2)}
.hero-sub{
  font-family:var(--mono);font-size:14px;color:var(--muted);
  line-height:1.7;max-width:480px;margin:0 auto 44px;
}
.hero-sub strong{color:var(--ink);font-weight:400}
.hero-actions{display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap;margin-bottom:24px}
.btn-primary{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:12px;letter-spacing:.03em;
  padding:12px 24px;border-radius:40px;
  background:var(--ink);color:#fff;text-decoration:none;
  transition:background .2s,transform .15s;
}
.btn-primary:hover{background:var(--ink2);transform:translateY(-1px)}
.btn-ghost{font-family:var(--mono);font-size:12px;color:var(--muted);text-decoration:none;transition:color .2s;letter-spacing:.02em}
.btn-ghost:hover{color:var(--ink)}
.hero-note{font-family:var(--mono);font-size:10px;color:var(--muted2);letter-spacing:.04em}

/* PHONE MOCKUP */
.hero-mock-wrap{margin-top:56px;display:flex;justify-content:center;gap:20px;flex-wrap:wrap}
.phone-mock{
  position:relative;text-align:left;
  width:230px;background:var(--bg);
  border:1px solid var(--line2);border-radius:32px;overflow:hidden;
  box-shadow:0 1px 0 var(--line2),0 12px 48px rgba(0,0,0,.08);
  flex-shrink:0;transition:transform .4s;
  padding-bottom:62px;            /* clearance per la nav pill flottante */
}
.phone-mock:hover{transform:translateY(-4px)}
.pm-sbar{padding:10px 16px 2px;display:flex;align-items:center;justify-content:space-between;flex-shrink:0}
.pm-sbar-t{font-size:10px;color:var(--ink);font-family:var(--mono)}
/* header app: ∿ grain .   + */
.pm-header{padding:6px 16px 8px;display:flex;align-items:center;justify-content:space-between}
.pm-logo{display:flex;align-items:center}
.pm-wm{font-family:var(--sans);font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.04em;margin-left:3px}
.pm-dot{display:inline-block;width:4px;height:4px;border-radius:50%;background:var(--ink);margin-left:3px;margin-bottom:5px}
.pm-plus{font-size:17px;line-height:1;color:var(--muted)}
.pm-sep{height:1px;background:var(--line)}
/* header sezione giorno (IERI / OGGI / MATTINA…) */
.pm-day{padding:9px 16px 3px;font-family:var(--mono);font-size:8px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);display:flex;align-items:center;gap:8px}
.pm-day::after{content:'';flex:1;height:1px;background:var(--line)}
.pm-row{display:flex;align-items:baseline;padding:5px 16px}
.pm-ts{font-size:9px;color:var(--muted);min-width:34px;line-height:1.7;font-family:var(--mono)}
.pm-vl{width:1px;align-self:stretch;background:var(--line);margin:0 9px;flex-shrink:0;min-height:14px}
.pm-tx{font-size:10px;color:var(--ink2);line-height:1.55;font-family:var(--mono)}
/* tag colorati con sfondo tint (come l'app) */
.pm-tag{border-radius:3px;padding:0 3px}
.pm-tag.t-terra{color:#C5604A;background:#FAF0ED}
.pm-tag.t-sage{color:#4A7A5C;background:#EAF3EE}
.pm-tag.t-indigo{color:#4A5C8A;background:#ECEEF6}
/* riga input */
.pm-inp{display:flex;align-items:baseline;padding:6px 16px 2px}
.pm-inp-ts{font-size:9px;color:var(--ink);font-weight:500;min-width:34px;font-family:var(--mono)}
.pm-inp-vl{width:1px;align-self:stretch;background:var(--line2);margin:0 9px;flex-shrink:0;min-height:14px}
.pm-inp-ph{font-size:10px;color:var(--muted);font-family:var(--mono)}
.pm-cursor{display:inline-block;width:1px;height:11px;background:var(--ink);vertical-align:middle;animation:blink 1s step-end infinite;margin-left:1px}
@keyframes blink{0%,100%{opacity:1}50%{opacity:0}}
/* timeline: header giorno con frecce */
.pm-tl-hdr{display:flex;align-items:center;justify-content:center;gap:12px;padding:8px 16px 10px;font-family:var(--mono);font-size:11px;color:var(--ink)}
.pm-arrow{color:var(--muted);font-size:12px}
/* timeline: statistiche tag */
.pm-stats{padding:10px 16px 4px}
.pm-stats-l{font-family:var(--mono);font-size:8px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:7px}
.pm-stat-row{display:flex;flex-wrap:wrap;gap:5px}
.pm-stat{font-family:var(--mono);font-size:9px;padding:2px 7px;border-radius:20px}
.pm-stat.t-terra{color:#C5604A;background:#FAF0ED}
.pm-stat.t-sage{color:#4A7A5C;background:#EAF3EE}
.pm-stat.t-indigo{color:#4A5C8A;background:#ECEEF6}
/* nav pill flottante (in basso) */
.pm-navpill{position:absolute;left:50%;transform:translateX(-50%);bottom:12px;display:flex;align-items:center;gap:4px;padding:5px;border-radius:24px;background:rgba(230,230,228,.96);border:1px solid rgba(17,17,17,.14);box-shadow:0 4px 16px rgba(0,0,0,.08)}
.pm-nav-item{width:30px;height:26px;border-radius:14px;display:flex;align-items:center;justify-content:center}
.pm-nav-item.on{background:#111}

/* DARK (mock timeline) */
.phone-mock.dark{background:#111;border-color:rgba(255,255,255,.1)}
.dark .pm-sbar-t{color:#F8F8F7}
.dark .pm-wm{color:#F8F8F7}
.dark .pm-dot{background:#F8F8F7}
.dark .pm-plus{color:#777}
.dark .pm-sep{background:rgba(255,255,255,.08)}
.dark .pm-day{color:#777}
.dark .pm-day::after{background:rgba(255,255,255,.08)}
.dark .pm-ts{color:#777}
.dark .pm-vl{background:rgba(255,255,255,.1)}
.dark .pm-tx{color:rgba(248,248,247,.82)}
.dark .pm-tl-hdr{color:#F8F8F7}
.dark .pm-stats-l{color:#777}
.dark .pm-inp-ts{color:rgba(248,248,247,.9)}
.dark .pm-inp-vl{background:rgba(255,255,255,.25)}
.dark .pm-inp-ph{color:#777}
.dark .pm-cursor{background:#F8F8F7}
.dark .pm-tag.t-terra,.dark .pm-stat.t-terra{color:#E8A090;background:rgba(197,96,74,.16)}
.dark .pm-tag.t-sage,.dark .pm-stat.t-sage{color:#8FBFA0;background:rgba(74,122,92,.18)}
.dark .pm-tag.t-indigo,.dark .pm-stat.t-indigo{color:#8A97BF;background:rgba(74,92,138,.18)}
.dark .pm-navpill{background:rgba(42,42,40,.96);border-color:rgba(255,255,255,.16);box-shadow:0 4px 16px rgba(0,0,0,.35)}
.dark .pm-nav-item.on{background:#F8F8F7}

/* SECTION BASE */
section{padding:100px 48px}
.section-label{
  font-family:var(--mono);font-size:10px;color:var(--muted);
  letter-spacing:.1em;text-transform:uppercase;
  margin-bottom:20px;display:flex;align-items:center;gap:10px;
}
.section-label::after{content:'';flex:1;max-width:32px;height:1px;background:var(--line2)}
.section-h2{
  font-family:var(--sans);font-size:clamp(28px,4vw,48px);
  font-weight:700;letter-spacing:-.03em;line-height:1.05;
  color:var(--ink);margin-bottom:16px;
}
.section-h2 em{font-style:normal;color:var(--ink2)}
.section-body{font-family:var(--mono);font-size:13px;color:var(--muted);line-height:1.75;max-width:440px}
.divider{display:flex;align-items:center;gap:18px;padding:0 48px}
.divider::before,.divider::after{content:'';flex:1;height:1px;background:var(--line)}
.divider span{font-family:var(--mono);font-size:10px;color:var(--muted);letter-spacing:.08em;white-space:nowrap}

/* HOW IT WORKS */
.how-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center;max-width:1000px;margin:0 auto}
.how-steps{display:flex;flex-direction:column;gap:28px;margin-top:36px}
.how-step{display:flex;gap:18px;opacity:0;transform:translateY(14px);transition:opacity .5s,transform .5s}
.how-step.visible{opacity:1;transform:none}
.step-num{font-family:var(--mono);font-size:10px;color:var(--muted);min-width:20px;padding-top:3px;letter-spacing:.04em}
.step-content h3{font-family:var(--sans);font-size:15px;font-weight:600;color:var(--ink);margin-bottom:4px;letter-spacing:-.02em}
.step-content p{font-family:var(--mono);font-size:12px;color:var(--muted);line-height:1.65}
/* timeline visual */
.tl-visual{background:#fff;border-radius:12px;border:1px solid var(--line2);padding:20px 0;overflow:hidden}
.tl-vis-hdr{display:flex;align-items:center;justify-content:space-between;padding:0 20px 12px;border-bottom:1px solid var(--line)}
.tl-vis-t{font-family:var(--sans);font-size:13px;font-weight:600;color:var(--ink);letter-spacing:-.02em}
.tl-vis-c{font-family:var(--mono);font-size:9px;color:var(--muted)}
.tl-vis-day{padding:10px 20px 4px;font-family:var(--mono);font-size:9px;letter-spacing:.07em;text-transform:uppercase;color:var(--muted);display:flex;align-items:center;gap:8px}
.tl-vis-day::after{content:'';flex:1;height:1px;background:var(--line)}
.tl-vis-row{display:flex;align-items:baseline;padding:4px 20px}
.tl-vis-row.hi{background:var(--bg3)}
.tl-vis-ts{font-family:var(--mono);font-size:9px;color:var(--muted);min-width:44px}
.tl-vis-row.hi .tl-vis-ts{color:var(--ink2);font-weight:500}
.tl-vis-vl{width:1px;align-self:stretch;background:var(--line);margin:0 10px;flex-shrink:0;min-height:14px}
.tl-vis-row.hi .tl-vis-vl{background:var(--line2)}
.tl-vis-tx{font-family:var(--mono);font-size:10px;color:var(--ink2);line-height:1.5}
.tl-vis-row.hi .tl-vis-tx{color:var(--ink)}
.tl-vis-tag{border-radius:3px;padding:0 4px}
.tl-vis-tag.t-terra{color:#C5604A;background:#FAF0ED}
.tl-vis-tag.t-sage{color:#4A7A5C;background:#EAF3EE}
.tl-vis-tag.t-indigo{color:#4A5C8A;background:#ECEEF6}

/* FEATURES */
.features-section{background:#fff}
.features-hdr{text-align:center;margin-bottom:60px}
.feat-grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:1px;max-width:960px;margin:0 auto;
  background:var(--line);border:1px solid var(--line);border-radius:12px;overflow:hidden;
}
.feat-cell{background:#fff;padding:32px 28px;transition:background .2s}
.feat-cell:hover{background:var(--bg)}
.feat-icon{
  width:36px;height:36px;border-radius:8px;
  background:var(--bg3);border:1px solid var(--line2);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:16px;
}
.feat-h3{font-family:var(--sans);font-size:15px;font-weight:600;color:var(--ink);letter-spacing:-.02em;margin-bottom:6px}
.feat-p{font-family:var(--mono);font-size:12px;color:var(--muted);line-height:1.65}

/* GRAIN+ */
.plus-section{padding:100px 48px;background:var(--bg)}
.plus-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:start;max-width:1000px;margin:0 auto}
.plus-free-list{list-style:none;display:flex;flex-direction:column;gap:8px;margin-top:28px}
.plus-free-list li{font-family:var(--mono);font-size:13px;color:var(--muted);display:flex;align-items:flex-start;gap:10px;line-height:1.55}
.plus-free-list li::before{content:'—';color:var(--muted2);flex-shrink:0}
.plus-card{background:var(--ink);border-radius:12px;padding:36px;position:relative;overflow:hidden}
.plus-card::before{content:'';position:absolute;top:-100px;right:-100px;width:300px;height:300px;border-radius:50%;background:rgba(255,255,255,.03);pointer-events:none}
.plus-badge{font-family:var(--mono);font-size:10px;color:rgba(255,255,255,.4);letter-spacing:.1em;text-transform:uppercase;margin-bottom:18px}
.plus-h{font-family:var(--sans);font-size:26px;font-weight:700;color:#fff;letter-spacing:-.03em;line-height:1.1;margin-bottom:10px}
.plus-sub{font-family:var(--mono);font-size:12px;color:rgba(255,255,255,.45);line-height:1.7;margin-bottom:28px}
.plus-caps{list-style:none;display:flex;flex-direction:column;gap:14px;margin-bottom:28px}
.plus-caps li{display:flex;align-items:flex-start;gap:12px}
.plus-cap-icon{width:28px;height:28px;border-radius:6px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.1);display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:1px}
.plus-cap-h{font-family:var(--sans);font-size:13px;font-weight:500;color:#fff;margin-bottom:2px}
.plus-cap-p{font-family:var(--mono);font-size:11px;color:rgba(255,255,255,.4);line-height:1.55}
.plus-btn{display:block;width:100%;padding:12px;border-radius:40px;border:1px solid rgba(255,255,255,.2);background:transparent;color:#fff;font-family:var(--mono);font-size:12px;cursor:pointer;text-align:center;transition:all .2s;text-decoration:none;letter-spacing:.03em}
.plus-btn:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.35)}
.plus-note{font-family:var(--mono);font-size:10px;color:rgba(255,255,255,.25);margin-top:14px;text-align:center;letter-spacing:.03em}

/* QUOTE */
.quote-section{background:var(--ink);text-align:center;padding:100px 48px}
blockquote{
  font-family:var(--sans);font-size:clamp(22px,3.5vw,40px);
  font-weight:400;color:#fff;
  max-width:700px;margin:0 auto 18px;
  line-height:1.2;letter-spacing:-.03em;
}
blockquote em{font-style:normal;color:rgba(255,255,255,.4)}
cite{font-family:var(--mono);font-size:10px;color:rgba(255,255,255,.3);letter-spacing:.07em;font-style:normal}

/* FOOTER */
footer{
  padding:40px 48px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:16px;background:var(--bg);
}
.footer-brand{display:flex;align-items:center;gap:0}
.footer-wm{font-family:var(--sans);font-size:15px;font-weight:700;color:var(--ink);letter-spacing:-.04em}
.footer-dot{display:inline-block;width:4px;height:4px;border-radius:50%;background:var(--ink);margin-left:2px;margin-bottom:3px}
.footer-tag{font-family:var(--mono);font-size:9px;color:var(--muted);margin-top:2px}
.footer-links{display:flex;gap:20px;list-style:none}
.footer-links a{font-family:var(--mono);font-size:11px;color:var(--muted);text-decoration:none;transition:color .2s;letter-spacing:.02em}
.footer-links a:hover{color:var(--ink)}
.footer-copy{font-family:var(--mono);font-size:9px;color:var(--muted2);letter-spacing:.02em}

/* ANIMATIONS */
@keyframes fadeUp{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:none}}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:none}

/* RESPONSIVE */
@media(max-width:900px){
  nav{padding:0 20px}
  .nav-center,.nav-links{display:none}
  .hero{padding:100px 24px 60px}
  section{padding:72px 24px}
  .how-grid,.plus-grid{grid-template-columns:1fr;gap:48px}
  .feat-grid{grid-template-columns:1fr}
  .divider{padding:0 24px}
  footer{padding:28px 24px;flex-direction:column;align-items:flex-start}
  .hero-mock-wrap{gap:10px}
  .phone-mock{width:180px}
}