@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Manrope:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ============================================================
   ISONOMA — Design system
   Software house fintech · Sumi/Washi/Verdigris/Ottone
   ============================================================ */

:root{
  /* surfaces — Sumi (brand board #1A1916) */
  --obsidian:#1A1916; --pine:#201D18; --pine-2:#26221C; --pine-card:#242019;
  /* paper — Washi (brand board #F4EFE6) */
  --vellum:#F4EFE6; --vellum-2:#EBE4D5; --vellum-card:#FCF9F2;
  /* ink */
  --on-dark:#F1ECDF; --soft-dark:#A69D8D;
  --ink:#1A1916; --soft:#6B6459;
  /* accents — Verdigris #5A8A78 · Ottone #B08A40 (brand board) */
  --pine-mid:#47705F; --signal:#5A8A78; --signal-soft:rgba(90,138,120,.13);
  --ottone:#B08A40; --ottone-soft:rgba(176,138,64,.16);
  /* hairlines */
  --line-d:rgba(200,183,150,.16); --line-d-2:rgba(200,183,150,.28); --line-l:rgba(26,25,22,.12);
  /* type */
  --serif:'Space Grotesk',-apple-system,sans-serif; --sans:'Manrope',-apple-system,sans-serif; --mono:'JetBrains Mono',monospace;
  --maxw:1180px; --ease:cubic-bezier(.19,1,.22,1); --ease-out:cubic-bezier(.23,1,.32,1); --ease-io:cubic-bezier(.77,0,.175,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--vellum);color:var(--ink);line-height:1.7;font-weight:400;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
::selection{background:var(--signal);color:var(--obsidian)}
button{font-family:inherit}

/* i18n */
[data-lang]{display:none}
html.lang-it [data-lang="it"]{display:revert}
html.lang-en [data-lang="en"]{display:revert}

/* layout */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;position:relative}
@media(min-width:760px){.wrap{padding:0 48px}}
section{scroll-margin-top:88px}
.sec{position:relative;padding:96px 0}
@media(min-width:760px){.sec{padding:150px 0}}
.sec--dark{background:var(--obsidian);color:var(--on-dark)}
.sec--pine{background:var(--pine);color:var(--on-dark)}
.sec--light{background:var(--vellum);color:var(--ink)}
.sec--light2{background:var(--vellum-2);color:var(--ink)}

.seam{height:1px;background:linear-gradient(90deg,transparent,var(--ottone),transparent);opacity:.35}

/* type */
.eyebrow{font-family:var(--mono);font-size:.66rem;letter-spacing:.22em;text-transform:uppercase;display:inline-flex;align-items:center;gap:12px;margin-bottom:26px}
.sec--dark .eyebrow,.sec--pine .eyebrow{color:var(--signal)}
.sec--light .eyebrow,.sec--light2 .eyebrow{color:var(--pine-mid)}
.eyebrow::before{content:"";width:30px;height:1px;background:currentColor;opacity:.6}

.display{font-family:var(--serif);font-weight:300;line-height:1.1;letter-spacing:-.01em}
h1.display{font-size:clamp(2.4rem,6.4vw,4.6rem)}
h2.display{font-size:clamp(1.9rem,4.2vw,3.1rem);margin-bottom:26px}
.display em{font-style:italic}
.sec--dark .display em,.sec--pine .display em{color:var(--signal)}
.sec--light .display em,.sec--light2 .display em{color:var(--pine-mid)}

/* ottone underline that draws in under section titles on reveal */
.tline{display:inline-block;position:relative;padding-bottom:14px}
.tline::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:56px;background:var(--ottone);transform:scaleX(0);transform-origin:left;transition:transform .9s var(--ease)}
.rv.in .tline::after{transform:scaleX(1)}

.lede{font-size:clamp(1rem,1.4vw,1.18rem);font-weight:300;max-width:56ch}
.sec--dark .lede,.sec--pine .lede{color:var(--soft-dark)}
.sec--light .lede,.sec--light2 .lede{color:var(--soft)}

/* nav */
header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(26,25,22,.94);backdrop-filter:blur(14px) saturate(1.2);-webkit-backdrop-filter:blur(14px) saturate(1.2);border-bottom:1px solid transparent;transition:background .4s,border-color .4s}
header.scrolled{background:rgba(26,25,22,.98);border-color:var(--ottone-soft)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:inline-flex;align-items:center;gap:12px;cursor:pointer}
.logo img{width:30px;height:36px}
.logo svg.mk{width:30px;height:36px;color:var(--ottone);flex:0 0 auto}
svg.mk .d{fill:none;stroke:currentColor;stroke-width:6}
.logo-word{font-family:var(--serif);font-weight:600;font-size:1.08rem;letter-spacing:.32em;color:var(--on-dark);padding-left:.32em}
.nav-links{display:none;align-items:center;gap:32px}
@media(min-width:960px){.nav-links{display:flex}}
.nav-links a{font-size:.82rem;font-weight:500;color:var(--soft-dark);cursor:pointer;position:relative;padding:6px 0;transition:color .3s}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:1px;background:var(--ottone);transform:scaleX(0);transform-origin:right;transition:transform .4s var(--ease)}
.nav-links a:hover{color:var(--on-dark)}
.nav-links a:hover::after{transform:scaleX(1);transform-origin:left}
.nav-right{display:flex;align-items:center;gap:16px}
.lang-switch{display:flex;border:1px solid var(--line-d);border-radius:99px;overflow:hidden}
.lang-switch button{background:none;border:0;color:var(--soft-dark);font-family:var(--mono);font-size:.6rem;letter-spacing:.1em;padding:7px 12px;cursor:pointer;transition:.3s}
.lang-switch button.on{background:var(--ottone);color:var(--obsidian)}
a.btn.nav-cta{display:none}
@media(min-width:640px){a.btn.nav-cta{display:inline-flex}}
.burger{display:flex;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
@media(min-width:960px){.burger{display:none}}
.burger span{width:20px;height:1.5px;background:var(--on-dark);transition:.4s var(--ease)}
.burger.open span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}
.mobile-menu{position:fixed;inset:0;background:var(--obsidian);z-index:99;display:flex;flex-direction:column;justify-content:center;padding:0 32px;opacity:0;pointer-events:none;transition:opacity .5s var(--ease)}
.mobile-menu.open{opacity:1;pointer-events:auto}
.mobile-menu a{font-family:var(--serif);font-size:1.9rem;font-weight:300;padding:14px 0;border-bottom:1px solid var(--line-d);cursor:pointer;opacity:0;transform:translateY(16px);transition:.6s var(--ease)}
.mobile-menu.open a{opacity:1;transform:none}
.mobile-menu.open a:nth-child(2){transition-delay:.06s}.mobile-menu.open a:nth-child(3){transition-delay:.12s}.mobile-menu.open a:nth-child(4){transition-delay:.18s}.mobile-menu.open a:nth-child(5){transition-delay:.24s}.mobile-menu.open a:nth-child(6){transition-delay:.3s}

/* buttons — pill + button-in-button trailing icon */
.btn{display:inline-flex;align-items:center;gap:10px;font-size:.86rem;font-weight:500;border-radius:99px;padding:14px 8px 14px 26px;cursor:pointer;border:1px solid transparent;transition:transform .5s var(--ease),background .35s,color .35s,border-color .35s,box-shadow .5s;position:relative}
.btn .arr{width:32px;height:32px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;transition:transform .45s var(--ease),background .35s}
.btn:hover .arr{transform:translateX(3px)}
.btn--solid{background:var(--signal);color:var(--obsidian)}
.btn--solid .arr{background:rgba(14,22,19,.14)}
.btn--solid:hover{box-shadow:0 14px 40px -14px rgba(95,169,130,.55)}
.sec--light .btn--solid,.sec--light2 .btn--solid{background:var(--pine-mid);color:#fff}
.sec--light .btn--solid:hover,.sec--light2 .btn--solid:hover{box-shadow:0 14px 40px -14px rgba(47,96,72,.45)}
.btn--ghost{background:transparent;color:var(--on-dark);border-color:var(--line-d-2);padding-right:26px}
.btn--ghost .arr{display:none}
.btn--ghost:hover{border-color:var(--ottone);color:var(--ottone)}
.sec--light .btn--ghost,.sec--light2 .btn--ghost{color:var(--ink);border-color:var(--line-l)}
.sec--light .btn--ghost:hover,.sec--light2 .btn--ghost:hover{border-color:var(--pine-mid);color:var(--pine-mid)}
.btn--pill-nav{background:var(--ottone-soft);color:var(--ottone);border:1px solid rgba(194,168,106,.4);padding:9px 18px;font-size:.76rem}
.btn--pill-nav:hover{background:var(--ottone);color:var(--obsidian)}
.cta-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:40px}

/* reveal (IntersectionObserver driven, GPU-safe) */
.rv{opacity:0;transform:translateY(24px);transition:opacity .85s var(--ease),transform .85s var(--ease)}
.rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .rv{transform:none!important;filter:none!important;transition:opacity .45s ease!important}
  .tline::after{transform:scaleX(1)!important;transition:none!important}
  *{animation-duration:.001s!important}
  html{scroll-behavior:auto}
}

/* hero */
.hero{min-height:92svh;display:flex;align-items:center;position:relative;overflow:hidden;padding:150px 0 90px}
.hero-grid{position:absolute;inset:0;pointer-events:none;opacity:.4;
  background-image:linear-gradient(var(--line-d) 1px,transparent 1px),linear-gradient(90deg,var(--line-d) 1px,transparent 1px);
  background-size:86px 86px;
  -webkit-mask-image:radial-gradient(ellipse 65% 55% at 72% 32%,#000 0%,transparent 70%);
  mask-image:radial-gradient(ellipse 65% 55% at 72% 32%,#000 0%,transparent 70%)}
.hero-wm{position:absolute;right:-6vw;top:50%;transform:translateY(-50%);width:min(50vh,560px);opacity:.08;pointer-events:none;z-index:0}
.hero .wrap{position:relative;z-index:2}
.hero h1{max-width:15ch}
.hero .eyebrow,.hero .lede,.hero .cta-row,.hero .hero-meta{opacity:0;animation:fadeup .9s var(--ease) forwards}
.hero .eyebrow{animation-delay:.05s}
.hero h1{opacity:0;animation:fadeup 1s var(--ease) .15s forwards}
.hero .lede{animation-delay:.45s;margin-top:28px}
.hero .cta-row{animation-delay:.62s}
.hero .hero-meta{animation-delay:.8s}
@keyframes fadeup{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 28px;margin-top:58px;font-family:var(--mono);font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:var(--soft-dark)}
.hero-meta .dot{width:6px;height:6px;border-radius:50%;background:var(--signal);display:inline-block;margin-right:8px}
@media(prefers-reduced-motion:reduce){
  .hero .eyebrow,.hero .lede,.hero .cta-row,.hero .hero-meta,.hero h1{animation:none!important;opacity:1!important}
}

/* nested "double-bezel" cards */
.card{border-radius:16px;padding:2px;position:relative;transition:transform .6s var(--ease)}
.card-inner{border-radius:14px;padding:36px 32px;height:100%}
.sec--dark .card,.sec--pine .card{background:linear-gradient(160deg,rgba(194,168,106,.16),rgba(194,168,106,0) 40%);border:1px solid var(--line-d)}
.sec--dark .card-inner,.sec--pine .card-inner{background:var(--pine-card);box-shadow:inset 0 1px 0 rgba(236,231,215,.04)}
.sec--dark .card:hover,.sec--pine .card:hover{transform:translateY(-6px);border-color:var(--line-d-2)}
.sec--light .card,.sec--light2 .card{background:linear-gradient(160deg,rgba(47,96,72,.14),rgba(47,96,72,0) 40%);border:1px solid var(--line-l)}
.sec--light .card-inner,.sec--light2 .card-inner{background:var(--vellum-card);box-shadow:inset 0 1px 0 rgba(255,255,255,.6)}
.sec--light .card:hover,.sec--light2 .card:hover{transform:translateY(-6px);box-shadow:0 30px 60px -34px rgba(25,36,30,.18)}
.card .k{font-family:var(--mono);font-size:.6rem;letter-spacing:.18em;text-transform:uppercase;color:var(--signal);display:block;margin-bottom:20px}
.sec--light .card .k,.sec--light2 .card .k{color:var(--pine-mid)}
.card h3{font-family:var(--serif);font-weight:400;font-size:1.36rem;margin-bottom:12px;line-height:1.2}
.card p{font-size:.93rem;font-weight:300}
.sec--dark .card p,.sec--pine .card p{color:var(--soft-dark)}
.sec--light .card p,.sec--light2 .card p{color:var(--soft)}

.grid-4{display:grid;gap:16px;margin-top:60px}
@media(min-width:680px){.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1020px){.grid-4{grid-template-columns:repeat(4,1fr)}}
.grid-3{display:grid;gap:16px;margin-top:60px}
@media(min-width:860px){.grid-3{grid-template-columns:repeat(3,1fr);gap:20px}}
.grid-2{display:grid;gap:16px;margin-top:60px}
@media(min-width:820px){.grid-2{grid-template-columns:repeat(2,1fr);gap:24px}}

/* principles list (numbered — sequence carries real meaning here) */
.plist{margin-top:56px;display:grid;gap:0;border-top:1px solid var(--line-d)}
.plist li{list-style:none;display:grid;grid-template-columns:52px 1fr;gap:22px;padding:30px 4px;border-bottom:1px solid var(--line-d)}
.plist .n{font-family:var(--serif);font-size:1.5rem;font-weight:300;color:var(--ottone)}
.plist h4{font-family:var(--serif);font-weight:400;font-size:1.18rem;margin-bottom:6px}
.plist p{font-size:.92rem;font-weight:300;color:var(--soft-dark)}

/* steps (process — numbers meaningful, real sequence) */
.steps{margin-top:60px;display:grid;gap:16px}
@media(min-width:880px){.steps{grid-template-columns:repeat(3,1fr);gap:20px}}
.step{border-radius:14px;padding:34px 30px;position:relative}
.sec--light .step,.sec--light2 .step{background:var(--vellum-card);border:1px solid var(--line-l)}
.step .n{font-family:var(--serif);font-size:2rem;font-weight:300;color:var(--pine-mid);display:block;margin-bottom:18px}
.step h3{font-family:var(--serif);font-weight:400;font-size:1.22rem;margin-bottom:10px}
.step p{font-size:.9rem;font-weight:300;color:var(--soft)}

/* projects (internal R&D) */
.projects{display:grid;gap:18px;margin-top:60px}
@media(min-width:900px){.projects{grid-template-columns:1fr 1fr;gap:22px}}
.proj{border-radius:18px;padding:2px;position:relative;overflow:hidden}
.proj-inner{border-radius:16px;padding:40px 34px;background:var(--pine-card);border:1px solid var(--line-d);height:100%;display:flex;flex-direction:column}
.proj .k{font-family:var(--mono);font-size:.6rem;letter-spacing:.18em;text-transform:uppercase;color:var(--signal);margin-bottom:auto;display:block}
.proj h3{font-family:var(--serif);font-weight:300;font-size:1.5rem;margin:30px 0 14px}
.proj p{font-weight:300;font-size:.92rem;color:var(--soft-dark)}
.proj .status{display:inline-flex;align-items:center;gap:8px;margin-top:22px;font-family:var(--mono);font-size:.62rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ottone)}
.proj .status i{width:6px;height:6px;border-radius:50%;background:var(--ottone)}

/* FAQ */
.faq{margin-top:52px;border-top:1px solid var(--line-l)}
.sec--dark .faq,.sec--pine .faq{border-color:var(--line-d)}
.faq details{border-bottom:1px solid var(--line-l)}
.sec--dark .faq details,.sec--pine .faq details{border-color:var(--line-d)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:24px;padding:26px 4px;font-family:var(--serif);font-weight:400;font-size:1.1rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary .pm{flex:0 0 auto;width:32px;height:32px;border-radius:50%;border:1px solid var(--line-l);display:grid;place-items:center;font-weight:300;font-size:1.05rem;color:var(--pine-mid);transition:.4s var(--ease);font-family:var(--sans)}
.sec--dark .faq summary .pm,.sec--pine .faq summary .pm{border-color:var(--line-d);color:var(--signal)}
.faq details[open] summary .pm{transform:rotate(45deg);background:var(--pine-mid);border-color:var(--pine-mid);color:#fff}
.sec--dark .faq details[open] summary .pm,.sec--pine .faq details[open] summary .pm{background:var(--signal);border-color:var(--signal);color:var(--obsidian)}
.faq .ans{padding:0 4px 28px;max-width:64ch;font-weight:300;font-size:.94rem;color:var(--soft)}
.sec--dark .faq .ans,.sec--pine .faq .ans{color:var(--soft-dark)}
.faq .ans strong{font-weight:600;color:var(--ink)}
.sec--dark .faq .ans strong,.sec--pine .faq .ans strong{color:var(--on-dark)}

/* contact */
.contact-grid{display:grid;gap:48px;margin-top:56px}
@media(min-width:960px){.contact-grid{grid-template-columns:1.1fr .9fr;gap:76px}}
.field{margin-bottom:24px}
.field label{display:block;font-family:var(--mono);font-size:.6rem;letter-spacing:.18em;text-transform:uppercase;color:var(--soft-dark);margin-bottom:9px}
.field input,.field textarea{width:100%;background:var(--pine-card);border:1px solid var(--line-d);border-radius:10px;padding:15px 16px;font-family:var(--sans);font-size:.94rem;color:var(--on-dark);transition:border-color .3s,box-shadow .3s;outline:none}
.field textarea{min-height:120px;resize:vertical}
.field input:focus,.field textarea:focus{border-color:var(--ottone);box-shadow:0 0 0 3px rgba(194,168,106,.14)}
.field input::placeholder,.field textarea::placeholder{color:var(--soft-dark);opacity:.6}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.side-block{padding:26px 0;border-top:1px solid var(--line-d)}
.side-block:first-child{border-top:0;padding-top:0}
.side-block .k{font-family:var(--mono);font-size:.6rem;letter-spacing:.18em;text-transform:uppercase;color:var(--signal);display:block;margin-bottom:10px}
.side-block p{font-size:.92rem;color:var(--soft-dark);font-weight:300}
.side-block a{color:var(--ottone);font-weight:500}
.side-block a:hover{text-decoration:underline}
.form-note{font-size:.76rem;color:var(--soft-dark);margin-top:18px;font-weight:300}
.form-status{margin-top:16px;font-size:.86rem;font-weight:500;display:none}
.form-status.show{display:block}
.form-status.ok{color:var(--signal)}
.form-status.err{color:#C0463B}

/* end cta */
.endcta{text-align:center;position:relative;overflow:hidden}
.endcta h2{margin-inline:auto}
.endcta .lede{margin-inline:auto}
.endcta .cta-row{justify-content:center}

/* footer */
footer{background:#0A100D;color:var(--soft-dark);padding:80px 0 44px;border-top:1px solid var(--line-d)}
.foot-grid{display:grid;gap:40px}
@media(min-width:900px){.foot-grid{grid-template-columns:1.3fr 1fr 1fr}}
.foot-brand{display:inline-flex;align-items:center;gap:12px;margin-bottom:16px}
.foot-brand img{width:26px;height:31px}
.foot-brand svg.mk{width:26px;height:31px;color:var(--ottone)}
.foot-brand-word{font-family:var(--serif);font-weight:500;font-size:1.15rem;letter-spacing:.3em;color:var(--on-dark);padding-left:.3em}
.foot-legal p{font-size:.86rem;font-weight:300;max-width:42ch;line-height:1.75}
.foot-grid h4{font-family:var(--mono);font-size:.6rem;letter-spacing:.18em;text-transform:uppercase;color:var(--signal);margin-bottom:18px;font-weight:500}
.foot-grid a.flink{display:block;font-size:.88rem;font-weight:300;padding:5px 0;cursor:pointer;transition:color .3s}
.foot-grid a.flink:hover{color:var(--on-dark)}
.disclaimer{margin-top:56px;padding-top:32px;border-top:1px solid var(--line-d);font-size:.8rem;font-weight:300;color:var(--soft-dark);max-width:90ch}
.copyright{margin-top:24px;font-family:var(--mono);font-size:.6rem;letter-spacing:.08em;color:#5C6D63}
.group-note{font-size:.72rem;color:#5C6D63;margin-top:6px}

/* cookie banner */
.cookiebar{position:fixed;left:16px;right:16px;bottom:16px;z-index:200;max-width:640px;margin:0 auto;background:var(--pine-card);border:1px solid var(--line-d-2);border-radius:14px;padding:22px 24px;box-shadow:0 24px 60px -24px rgba(0,0,0,.5);opacity:0;transform:translateY(16px);pointer-events:none;transition:opacity .5s var(--ease),transform .5s var(--ease)}
.cookiebar.show{opacity:1;transform:none;pointer-events:auto}
.cookiebar p{font-size:.86rem;color:var(--soft-dark);font-weight:300;margin-bottom:14px}
.cookiebar a{color:var(--ottone);font-weight:500}
.cookiebar .row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between}
.cookiebar .btn{padding:11px 8px 11px 20px;font-size:.82rem}

/* legal pages */
.legal-nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.legal-body{max-width:76ch;margin:0 auto;padding:150px 24px 100px}
@media(min-width:760px){.legal-body{padding:160px 48px 120px}}
.legal-body h1{font-family:var(--serif);font-weight:300;font-size:clamp(2rem,4.4vw,2.9rem);margin-bottom:14px;color:var(--ink)}
.legal-body .updated{font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--soft);margin-bottom:52px;display:block}
.legal-body h2{font-family:var(--serif);font-weight:500;font-size:1.4rem;margin:44px 0 14px;color:var(--ink)}
.legal-body p,.legal-body li{font-size:.98rem;font-weight:300;color:var(--soft);margin-bottom:14px}
.legal-body ul,.legal-body ol{padding-left:22px;margin-bottom:14px}
.legal-body strong{font-weight:600;color:var(--ink)}
.legal-body a{color:var(--pine-mid);font-weight:500}
.legal-body a:hover{text-decoration:underline}
.legal-body table{width:100%;border-collapse:collapse;margin:20px 0 28px;font-size:.88rem}
.legal-body table th,.legal-body table td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line-l);color:var(--soft);font-weight:300}
.legal-body table th{font-family:var(--mono);font-size:.62rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink);font-weight:500}
.back-link{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--soft-dark);margin-bottom:8px}
.back-link:hover{color:var(--ottone)}

/* grain — fixed, pointer-events none, GPU-cheap */
.grain{position:fixed;inset:0;z-index:150;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='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size:180px 180px}

/* responsive */
@media(max-width:759px){
  .card-inner{padding:30px 26px}
  .proj-inner{padding:32px 26px}
}

/* ============================================================
   ISONOMA v2 — motion layer
   Intro · seal dividers · scroll ring · layered watermark ·
   masked reveals · micro-interactions. Emil-tier easing.
   ============================================================ */

/* ---------- intro (index only, once per session) ---------- */
.intro{position:fixed;inset:0;z-index:9000;background:var(--obsidian);display:grid;place-items:center;transition:transform .75s var(--ease-io)}
html.intro-done .intro{transform:translateY(-102%)}
.intro-inner{display:flex;flex-direction:column;align-items:center;gap:26px;transition:transform .6s var(--ease-io),opacity .5s ease}
html.intro-done .intro-inner{transform:translateY(-36px);opacity:0}
.intro .mk{width:110px;height:132px;color:var(--ottone);overflow:visible}
.intro .mk .i-arc{fill:none;stroke:currentColor;stroke-width:4;stroke-dasharray:1;stroke-dashoffset:1;animation:idraw .95s var(--ease-out) forwards}
.intro .mk .i-r{animation-delay:.18s}
.intro .mk .i-bar{stroke:currentColor;stroke-width:4;transform-origin:50% 50%;transform:scaleY(0);animation:ibar .7s var(--ease-out) .3s forwards}
@keyframes idraw{to{stroke-dashoffset:0}}
@keyframes ibar{to{transform:scaleY(1)}}
.intro-word{font-family:var(--serif);font-weight:600;font-size:1.5rem;letter-spacing:.6em;padding-left:.6em;color:var(--on-dark);opacity:0;animation:iword 1s var(--ease-out) .8s forwards}
@keyframes iword{from{opacity:0;letter-spacing:.6em;transform:translateY(8px)}to{opacity:1;letter-spacing:.34em;transform:none}}
.intro-line{width:0;height:1px;background:var(--ottone);opacity:.8;animation:iline .7s var(--ease-out) 1.15s forwards}
@keyframes iline{to{width:150px}}
html:not(.has-intro) .intro{display:none}
/* hero waits for the curtain */
html.has-intro .hero .eyebrow{animation-delay:1.95s}
html.has-intro .hero h1{animation-delay:2.05s}
html.has-intro .hero .lede{animation-delay:2.3s}
html.has-intro .hero .cta-row{animation-delay:2.45s}
html.has-intro .hero .hero-meta{animation-delay:2.6s}
@media(prefers-reduced-motion:reduce){.intro{display:none!important}}

/* ---------- seal dividers (the mark between sections) ---------- */
.seam{height:64px;background:var(--vellum);display:flex;align-items:center;gap:18px;padding:0 max(24px,calc((100vw - var(--maxw))/2 + 48px));opacity:1;transform:none}
.seam i{flex:1;height:1px;background:linear-gradient(90deg,transparent,var(--ottone));opacity:.55;transform:scaleX(0);transform-origin:right;transition:transform 1.1s var(--ease) .1s}
.seam i.sr{background:linear-gradient(270deg,transparent,var(--ottone));transform-origin:left}
.seam .mk{width:19px;height:23px;color:var(--ottone);flex:0 0 auto;opacity:0;transform:rotate(-90deg) scale(.5);transition:transform .9s var(--ease) .25s,opacity .5s ease .25s}
.seam .mk .d{stroke-width:8}
.seam.in i{transform:scaleX(1)}
.seam.in .mk{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.seam i{transform:scaleX(1)}.seam .mk{opacity:1;transform:none}}

/* ---------- scroll ring (branded progress, back-to-top) ---------- */
.scrollring{position:fixed;right:22px;bottom:22px;z-index:300;width:44px;height:53px;background:none;border:0;padding:0;cursor:pointer;opacity:0;pointer-events:none;transform:translateY(8px);transition:opacity .4s ease,transform .5s var(--ease-out)}
.scrollring.on{opacity:1;pointer-events:auto;transform:none}
.scrollring svg{width:100%;height:100%;color:var(--ottone);overflow:visible;transition:transform .3s var(--ease-out)}
.scrollring:hover svg{transform:scale(1.1)}
.scrollring:active svg{transform:scale(.94)}
.scrollring .d{fill:none;stroke:currentColor;stroke-width:6}
.scrollring .rp{stroke-dasharray:1;stroke-dashoffset:1}
@media(max-width:759px){.scrollring{right:14px;bottom:14px;width:36px;height:43px}}

/* ---------- hero: layered watermark (parallax groups) ---------- */
.hero-wm{position:absolute;right:-3vw;top:50%;transform:translateY(-52%);width:min(52vh,520px);height:auto;color:var(--ottone);opacity:.11;pointer-events:none;z-index:0;overflow:visible}
.hero-wm .d{fill:none;stroke:currentColor;stroke-width:3.2}
.hero-wm g{will-change:transform}
@media(max-width:759px){.hero-wm{right:-30vw;opacity:.07}}

/* ---------- reveal upgrade: rise + focus ---------- */
.rv{opacity:0;transform:translateY(26px);filter:blur(5px);transition:opacity .85s var(--ease),transform .85s var(--ease),filter .7s var(--ease)}
.rv.in{opacity:1;transform:none;filter:blur(0)}
.card.rv{transform:translateY(26px) scale(.975)}
.card.rv.in{transform:none}
h2.display.rv{clip-path:inset(0 -6% 108% -6%);filter:none;transition:opacity .9s var(--ease),transform .9s var(--ease),clip-path 1s var(--ease)}
h2.display.rv.in{clip-path:inset(-12% -6% -28% -6%)}
@media(prefers-reduced-motion:reduce){
  .rv{filter:none!important}
  h2.display.rv{clip-path:none!important}
}

/* ---------- header hide/reveal on scroll ---------- */
header{transition:background .4s,border-color .4s,transform .5s var(--ease-io)}
header.hide{transform:translateY(-100%)}

/* ---------- micro-interactions ---------- */
.btn{transition:transform .16s var(--ease-out),background .3s,color .3s,border-color .3s,box-shadow .45s}
.btn:active{transform:scale(.97)}
.btn--solid{will-change:transform}
.faq .ans{overflow:hidden}
.faq summary .pm{transition:transform .3s var(--ease-out),background .25s,border-color .25s,color .25s}
.step .n{display:inline-block;transform:translateX(-14px);opacity:0;transition:transform .7s var(--ease-out) .15s,opacity .6s ease .15s}
.step.rv.in .n,.rv.in .step .n{transform:none;opacity:1}
.steps .step{transition:transform .6s var(--ease-out),box-shadow .6s var(--ease-out)}
@media(hover:hover) and (pointer:fine){
  .steps .step:hover{transform:translateY(-5px)}
  .card{will-change:transform}
}
@media(prefers-reduced-motion:reduce){
  .step .n{transform:none;opacity:1}
  .btn:active{transform:none}
}
.seam.rv{opacity:1;transform:none;filter:none}

/* failsafe: se main.js non carica, l'intro si toglie da sola dopo 3.2s */
html.has-intro .intro{animation:introFailsafe .6s ease 3.2s forwards}
@keyframes introFailsafe{to{opacity:0;visibility:hidden;pointer-events:none}}

/* ============================================================
   ISONOMA v3 — light-first · type moderno · più scroll life
   ============================================================ */
/* type: Space Grotesk è già "voce" — niente corsivo finto */
.display{font-weight:600;letter-spacing:-.02em;line-height:1.06}
.display em{font-style:normal}
h1.display{font-weight:650;font-size:clamp(2.3rem,6vw,4.3rem)}
.logo-word,.foot-brand-word{font-weight:700;letter-spacing:.28em;padding-left:.28em}
.intro-word{font-family:var(--serif);font-weight:700;letter-spacing:.5em;padding-left:.5em}
.card h3,.step h3,.proj h3{font-weight:600}
.plist h4{font-weight:600}
.faq summary{font-weight:500;font-family:var(--sans);font-size:1.02rem}
.legal-body h1{font-weight:650}
.legal-body h2{font-weight:600}

/* hero chiaro (Washi = look primario del brand board) */
.hero.sec--light .hero-grid{background-image:linear-gradient(var(--line-l) 1px,transparent 1px),linear-gradient(90deg,var(--line-l) 1px,transparent 1px);opacity:.5}
.hero.sec--light .hero-wm{color:var(--pine-mid);opacity:.09}
.hero.sec--light .hero-meta{color:var(--soft)}
.hero.sec--light .hero-meta .dot{background:var(--pine-mid)}

/* metodo su chiaro: lista principi rimappata */
.sec--light .plist,.sec--light2 .plist{border-top:1px solid var(--line-l)}
.sec--light .plist li,.sec--light2 .plist li{border-bottom:1px solid var(--line-l)}
.sec--light .plist p,.sec--light2 .plist p{color:var(--soft)}

/* ghost mark decorativi con parallasse — scroll life nelle sezioni chiare */
.ghost-mk{position:absolute;width:min(38vw,400px);height:auto;color:var(--pine-mid);opacity:.055;pointer-events:none;z-index:0}
.ghost-mk .d{fill:none;stroke:currentColor;stroke-width:3}
.ghost-mk.g1{right:-7%;top:6%}
.ghost-mk.g2{left:-9%;bottom:2%}
.sec{overflow:hidden}
.sec .wrap{position:relative;z-index:1}

/* stack & strumenti (chips mono da software house) */
.stack-strip{margin-top:52px;display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.stack-strip .sl{font-family:var(--mono);font-size:.62rem;letter-spacing:.18em;text-transform:uppercase;color:var(--pine-mid);margin-right:10px;width:100%}
@media(min-width:760px){.stack-strip .sl{width:auto}}
.stack-strip span.chip{font-family:var(--mono);font-size:.72rem;padding:8px 14px;border:1px solid var(--line-l);border-radius:99px;color:var(--soft);background:var(--vellum-card);transition:border-color .25s,color .25s,transform .25s var(--ease-out)}
.stack-strip span.chip:hover{border-color:var(--pine-mid);color:var(--pine-mid);transform:translateY(-2px)}

/* reveal più visibili (viaggio più lungo) */
.rv{transform:translateY(34px);filter:blur(6px)}
.card.rv{transform:translateY(34px) scale(.97)}