/* ==========================================================================
   Ingenieurbüro Martin Peters — Umweltgutachter
   Design: "Trust & Authority", green scheme
   ========================================================================== */

/* --- Fonts: self-hosted, no third-party request (see css/fonts.css) -------- */
@import url('fonts.css');

/* --- Tokens --------------------------------------------------------------- */
:root{
  --forest-950:#071A11;
  --forest-900:#0D2E1E;
  --forest-800:#17402B;
  --forest-700:#3D5A4A;
  --green-600:#1B7A3E;
  --green-700:#14602F;
  --green-500:#22A04E;
  --green-100:#DDF1E3;
  --mint:#9BE8B4;

  --bg:#F8FAFC;
  --surface:#FFFFFF;
  --muted:#E9EEEA;
  --line:#E2E8F0;
  --line-strong:#CBD5E1;
  --fg:#020617;
  --fg-soft:#475569;

  --radius:10px;
  --radius-sm:6px;
  --shadow-sm:0 1px 3px rgba(2,6,23,.07),0 1px 2px rgba(2,6,23,.04);
  --shadow-md:0 10px 30px -12px rgba(2,6,23,.22);
  --shadow-lg:0 24px 60px -24px rgba(2,6,23,.35);

  --maxw:1180px;
  --nav-h:72px;

  /* Archivo for display (tighter, more pressure than a geometric sans),
     Fira Sans for text — humanist, drawn in Berlin, holds up at small sizes */
  --font-head:Archivo,system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-body:"Fira Sans",system-ui,-apple-system,"Segoe UI",sans-serif;

  --dur:.24s;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* --- Reset / base --------------------------------------------------------- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--fg);
  font-family:var(--font-body);font-size:16.5px;line-height:1.68;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
/* Archivo sets wider than a geometric sans, so headings take a tighter track */
h1,h2,h3,h4{font-family:var(--font-head);line-height:1.18;margin:0;letter-spacing:-.025em}
h3,h4{letter-spacing:-.015em}
p{margin:0 0 1.05em}
img{max-width:100%;display:block;height:auto}
a{color:inherit}
ul{margin:0;padding:0}
:focus-visible{outline:3px solid var(--green-500);outline-offset:3px;border-radius:4px}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0 0 0 0);white-space:nowrap;border:0;
}
.skip-link{
  position:absolute;left:14px;top:-60px;z-index:200;background:var(--green-600);color:#fff;
  padding:12px 20px;border-radius:var(--radius-sm);font-family:var(--font-head);font-weight:600;
  text-decoration:none;transition:top var(--dur) var(--ease);
}
.skip-link:focus{top:14px}

/* --- Shared bits ---------------------------------------------------------- */
.eyebrow{
  font-family:var(--font-head);font-size:12.5px;font-weight:600;letter-spacing:.16em;
  text-transform:uppercase;color:var(--green-600);margin:0 0 14px;
}
.rule{width:52px;height:3px;background:var(--green-600);margin-bottom:22px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-family:var(--font-head);font-weight:600;font-size:15px;text-decoration:none;
  border-radius:var(--radius-sm);padding:13px 24px;min-height:48px;
  border:1.5px solid transparent;cursor:pointer;transition:background var(--dur) var(--ease),
  box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.btn svg{width:17px;height:17px;flex-shrink:0}
.btn--primary{background:var(--green-600);color:#fff}
.btn--primary:hover{background:var(--green-700);box-shadow:0 6px 16px -6px rgba(27,122,62,.6)}
.btn--outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.42)}
.btn--outline:hover{border-color:#fff;background:rgba(255,255,255,.1)}
.btn--ghost{background:#fff;color:var(--forest-900);border-color:var(--line-strong)}
.btn--ghost:hover{border-color:var(--green-600);color:var(--green-600)}

/* --- Topbar --------------------------------------------------------------- */
.topbar{
  background:var(--forest-950);color:rgba(255,255,255,.72);font-size:13.5px;
  padding:8px 0;border-bottom:1px solid rgba(255,255,255,.08);
}
.topbar__in{
  max-width:var(--maxw);margin:0 auto;padding:0 24px;
  display:flex;gap:26px;flex-wrap:wrap;align-items:center;
}
.topbar a{color:#fff;text-decoration:none}
.topbar a:hover{text-decoration:underline}
.topbar__mail{margin-left:auto}

/* --- Header / nav --------------------------------------------------------- */
/* invisible probe the header watches to know when the page has scrolled */
.scroll-sentinel{position:absolute;top:0;height:40px;width:1px;pointer-events:none}

.header{
  position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
/* Once content passes underneath, the bar lifts off the page. Shadow only —
   changing its height here would shove the whole document around. */
.header[data-scrolled="true"]{
  box-shadow:0 6px 20px -12px rgba(2,6,23,.35);border-bottom-color:transparent;
}
.header__in{
  max-width:var(--maxw);margin:0 auto;padding:14px 24px;
  display:flex;align-items:center;gap:34px;min-height:var(--nav-h);
}
.brand{display:flex;align-items:center;gap:13px;text-decoration:none;flex-shrink:0}
.brand img{width:42px;height:42px;object-fit:contain}
.brand__name{
  font-family:var(--font-head);font-size:16px;font-weight:600;line-height:1.2;
  color:var(--forest-900);display:block;
}
.brand__role{
  font-size:12px;color:var(--fg-soft);letter-spacing:.04em;text-transform:uppercase;display:block;
}
.nav{display:flex;gap:30px;margin-left:auto;align-items:center}
.nav a{
  text-decoration:none;font-size:15px;font-weight:600;color:var(--forest-700);
  padding:10px 0;border-bottom:2px solid transparent;
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.nav a:hover{color:var(--green-600);border-bottom-color:var(--green-600)}
.nav a[aria-current="true"]{color:var(--green-600);border-bottom-color:var(--green-600)}
.header .btn{padding:11px 20px;min-height:44px;font-size:14.5px;margin-left:18px}
.burger{
  display:none;margin-left:auto;background:none;border:1.5px solid var(--line-strong);
  border-radius:var(--radius-sm);width:48px;height:48px;align-items:center;justify-content:center;
  cursor:pointer;color:var(--forest-900);
}
.burger svg{width:24px;height:24px}

/* mobile drawer */
.drawer{
  position:fixed;inset:0;z-index:150;visibility:hidden;
}
.drawer[data-open="true"]{visibility:visible}
.drawer__scrim{
  position:absolute;inset:0;background:rgba(7,26,17,.55);opacity:0;
  transition:opacity var(--dur) var(--ease);
}
.drawer[data-open="true"] .drawer__scrim{opacity:1}
.drawer__panel{
  position:absolute;top:0;right:0;bottom:0;width:min(88vw,340px);background:#fff;
  padding:20px 22px calc(24px + env(safe-area-inset-bottom));
  display:flex;flex-direction:column;gap:6px;box-shadow:var(--shadow-lg);
  transform:translateX(100%);transition:transform var(--dur) var(--ease);overflow-y:auto;
}
.drawer[data-open="true"] .drawer__panel{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.drawer__close{
  background:none;border:1.5px solid var(--line-strong);border-radius:var(--radius-sm);
  width:48px;height:48px;display:grid;place-items:center;cursor:pointer;color:var(--forest-900);
}
.drawer__close svg{width:22px;height:22px}
.drawer__panel a:not(.btn){
  text-decoration:none;font-family:var(--font-head);font-weight:600;font-size:17px;
  color:var(--forest-900);padding:14px 4px;border-bottom:1px solid var(--line);min-height:48px;
  display:flex;align-items:center;
}
.drawer__panel .btn{margin-top:18px}
.drawer__meta{margin-top:auto;padding-top:22px;font-size:14px;color:var(--fg-soft)}

/* --- Hero ----------------------------------------------------------------- */
.hero{position:relative;background:var(--forest-900);color:#fff;overflow:hidden;padding:88px 0 0}
.hero__bg{position:absolute;inset:0;opacity:.5}
.hero__bg img{width:100%;height:100%;object-fit:cover}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,var(--forest-900) 34%,rgba(13,46,30,.9) 52%,rgba(13,46,30,.35) 100%);
}
.hero__in{position:relative;z-index:2}
.hero__grid{
  display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;padding-bottom:76px;
}
.hero .eyebrow{color:var(--mint)}
.hero h1{font-size:clamp(32px,4.2vw,50px);font-weight:700;margin-bottom:20px;letter-spacing:-.02em}
.hero__lead{font-size:19px;color:rgba(255,255,255,.82);margin-bottom:30px;max-width:44ch}
.hero__cta{display:flex;gap:14px;flex-wrap:wrap}

.creds{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius);padding:28px 30px;backdrop-filter:blur(6px);
}
.creds h2{
  font-size:14px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;
  color:var(--mint);margin-bottom:20px;
}
.creds li{
  list-style:none;display:flex;gap:14px;align-items:flex-start;padding:14px 0;
  border-top:1px solid rgba(255,255,255,.11);
}
.creds li:first-of-type{border-top:0;padding-top:0}
.creds svg{width:22px;height:22px;color:var(--mint);flex-shrink:0;margin-top:2px}
.creds b{display:block;font-family:var(--font-head);font-size:15.5px;font-weight:600;color:#fff}
.creds span{font-size:13.5px;color:rgba(255,255,255,.7);line-height:1.45}

/* --- Norms strip ---------------------------------------------------------- */
.norms{
  background:var(--forest-950);border-top:1px solid rgba(255,255,255,.09);
  padding:20px 0;position:relative;z-index:2;
}
.norms__in{
  max-width:var(--maxw);margin:0 auto;padding:0 24px;
  display:flex;flex-wrap:wrap;gap:12px 10px;align-items:center;justify-content:center;
}
.chip{
  list-style:none;border:1px solid rgba(255,255,255,.2);border-radius:var(--radius-sm);
  padding:8px 16px;font-family:var(--font-head);font-size:13.5px;font-weight:600;
  color:rgba(255,255,255,.9);letter-spacing:.03em;
}
.chip--accent{border-color:rgba(255,255,255,.65);color:#fff;background:rgba(255,255,255,.08)}

/* --- Sections ------------------------------------------------------------- */
section{scroll-margin-top:calc(var(--nav-h) + 12px)}
.sec{padding:88px 0}
.sec__head{max-width:760px;margin-bottom:52px}
.sec__head h2{font-size:clamp(26px,3.2vw,38px);font-weight:700;margin-bottom:16px;color:var(--forest-900)}
.sec__head p{font-size:17.5px;color:var(--fg-soft);margin:0}

/* Approach */
.approach{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.grid-3{
  display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
}
.cell{background:#fff;padding:34px 30px}
.cell h3{font-size:18px;font-weight:600;margin-bottom:12px;color:var(--forest-900)}
.cell p{font-size:15.5px;color:var(--fg-soft);margin:0}
.cell__num{
  font-family:var(--font-head);font-size:13px;font-weight:700;color:var(--green-600);
  letter-spacing:.1em;margin-bottom:14px;display:block;
}
/* No stripe, no oversized glyph: the statement carries itself through size and
   a hanging opening quote that sits in the left margin. */
.quote{
  margin:48px 0 0;padding:40px 48px 36px;background:var(--forest-900);color:#fff;
  border-radius:var(--radius);
}
.quote p{
  margin:0;font-family:var(--font-head);font-weight:500;
  font-size:clamp(20px,2.1vw,26px);line-height:1.5;letter-spacing:-.01em;
  text-indent:-.42em;                 /* hang the opening quote into the margin */
  max-width:38ch;
}
.quote cite{
  display:flex;align-items:center;gap:12px;margin-top:18px;
  font-style:normal;font-size:13.5px;font-family:var(--font-head);font-weight:600;
  letter-spacing:.12em;text-transform:uppercase;color:var(--mint);
}
/* Signature rule: draws across, then the name arrives — the gesture of
   someone signing off on a statement, which is literally his job. */
.quote cite::before{
  content:"";width:34px;height:2px;background:currentColor;flex-shrink:0;
  transform-origin:left;
}

/* Services */
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px 30px;
  box-shadow:var(--shadow-sm);position:relative;
  transition:box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease),
             transform var(--dur) var(--ease);
}
.card:hover{
  box-shadow:var(--shadow-md);border-color:var(--green-600);transform:translateY(-3px);
}
.card__top{display:flex;align-items:center;gap:14px;margin-bottom:18px}
.card__ico{
  width:46px;height:46px;border-radius:var(--radius-sm);background:var(--green-100);
  display:grid;place-items:center;color:var(--green-600);flex-shrink:0;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.card:hover .card__ico{background:var(--forest-900);color:var(--mint)}
.card__ico svg{width:23px;height:23px}
/* list markers pick up the hover a beat after the tile, left to right */
.card li::before{transition:background var(--dur) var(--ease)}
.card:hover li::before{background:var(--green-100)}
.card h3{font-size:19.5px;font-weight:600;color:var(--forest-900)}
.card li{
  list-style:none;position:relative;padding-left:26px;margin-bottom:10px;
  font-size:15.5px;color:var(--fg-soft);line-height:1.55;
}
.card li::before{
  content:"";position:absolute;left:2px;top:9px;width:9px;height:9px;
  border:2px solid var(--green-600);border-radius:2px;
}
.card > p{font-size:15.5px;color:var(--fg-soft)}

/* About */
.about{background:var(--muted)}
.about__grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:56px;align-items:start}
.about__photo img{
  border-radius:var(--radius);box-shadow:var(--shadow-md);
  aspect-ratio:4/5;object-fit:cover;object-position:50% 22%;width:100%;
}
.facts{background:#fff;border:1px solid var(--line);border-radius:var(--radius);margin-top:20px;padding:22px 24px}
.facts div{display:flex;gap:12px;padding:9px 0;font-size:14.5px;border-top:1px solid var(--line)}
.facts div:first-child{border-top:0;padding-top:0}
.facts dt{color:var(--fg-soft);min-width:112px;flex-shrink:0}
.facts dd{margin:0;font-weight:600;color:var(--forest-900)}
.about__grid h2{font-size:clamp(26px,3vw,36px);font-weight:700;margin-bottom:20px;color:var(--forest-900)}
.about__grid p{color:var(--fg-soft);font-size:16px}

/* Accordion */
.acc{margin-top:28px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:2px 26px}
.acc summary{
  cursor:pointer;list-style:none;font-family:var(--font-head);font-weight:600;font-size:16.5px;
  padding:18px 0;display:flex;align-items:center;justify-content:space-between;gap:12px;
  min-height:48px;color:var(--forest-900);
}
.acc summary::-webkit-details-marker{display:none}
.acc summary svg{width:19px;height:19px;color:var(--green-600);transition:transform var(--dur) var(--ease);flex-shrink:0}
.acc[open] summary svg{transform:rotate(180deg)}
.acc__body{padding-bottom:24px}
.acc__body p{font-size:15.5px}
/* replaces former inline style attributes — those are blocked by the CSP */
.acc__body p.last{margin:0}
.acc__list{display:grid;grid-template-columns:repeat(2,1fr);gap:7px 24px;margin:0 0 20px}
.acc__list li{
  list-style:none;font-size:14.8px;color:var(--fg-soft);padding-left:22px;
  position:relative;line-height:1.5;
}
.acc__list li::before{
  content:"";position:absolute;left:0;top:8px;width:10px;height:10px;
  border:2px solid var(--green-600);border-radius:2px;
}

/* References */
/* gap:1px + a hairline ring per tile draws the grid lines without tinting
   the trailing empty cell of the last row */
.refs{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
}
.refs li{
  list-style:none;background:#fff;box-shadow:0 0 0 1px var(--line);
  padding:20px 18px;font-size:14.5px;font-weight:600;
  color:var(--forest-900);display:flex;flex-direction:column;justify-content:center;
  min-height:88px;line-height:1.35;transition:background var(--dur) var(--ease);
}
.refs li:hover{background:var(--green-100)}
.refs small{display:block;font-weight:400;color:var(--fg-soft);font-size:12.8px;margin-top:3px}
.refs__note{margin-top:24px;font-size:15.5px;color:var(--fg-soft)}

/* Contact */
.contact{background:#fff;border-top:1px solid var(--line)}
.contact__grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.contact h2{font-size:clamp(26px,3.2vw,38px);font-weight:700;margin-bottom:18px;color:var(--forest-900)}
.contact p{color:var(--fg-soft);font-size:16.5px}
.contact__mail{
  display:inline-flex;align-items:center;gap:11px;color:var(--green-600);text-decoration:none;
  font-family:var(--font-head);font-weight:600;font-size:17.5px;margin:6px 0 4px;min-height:44px;
}
.contact__mail:hover{text-decoration:underline}
.contact__mail svg{width:20px;height:20px}
.contact__outro{margin-top:22px}
.sig{font-family:var(--font-head);font-weight:600;color:var(--forest-900)}

.form{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:34px}
.form h3{font-size:19px;margin-bottom:6px;color:var(--forest-900)}
.form__hint{font-size:14px;color:var(--fg-soft);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{
  display:block;font-size:14px;font-weight:600;color:var(--forest-900);margin-bottom:6px;
  font-family:var(--font-head);
}
.field .req{color:var(--green-600)}
.field input,.field textarea{
  width:100%;border:1.5px solid var(--line-strong);border-radius:var(--radius-sm);padding:12px 14px;
  font-family:inherit;font-size:16px;color:var(--fg);background:#fff;min-height:48px;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.field textarea{min-height:118px;resize:vertical}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--green-600);box-shadow:0 0 0 3px rgba(27,122,62,.18);
}
.field input[aria-invalid="true"],.field textarea[aria-invalid="true"]{border-color:#B91C1C}
.field__err{
  display:none;font-size:13.5px;color:#B91C1C;margin-top:6px;font-weight:600;
}
.field__err[data-show="true"]{display:flex;align-items:center;gap:6px}
.form .btn{width:100%;margin-top:4px}
.form__consent{font-size:13.5px;color:var(--fg-soft);margin:16px 0 0}
.form__consent a{color:var(--green-600)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

.alert{
  border-radius:var(--radius-sm);padding:14px 16px;font-size:15px;margin-bottom:20px;
  display:flex;gap:10px;align-items:flex-start;
}
.alert svg{width:20px;height:20px;flex-shrink:0;margin-top:2px}
.alert--ok{background:var(--green-100);color:#14532D;border:1px solid #86C79E}
.alert--err{background:#FEE2E2;color:#7F1D1D;border:1px solid #FCA5A5}

/* --- Footer --------------------------------------------------------------- */
.footer{background:var(--forest-950);color:rgba(255,255,255,.62);padding:52px 0 32px;font-size:14.5px}
.footer__grid{display:flex;gap:44px;flex-wrap:wrap;justify-content:space-between;align-items:flex-start}
.footer b{color:#fff;font-family:var(--font-head);display:block;margin-bottom:6px}
.footer a{color:rgba(255,255,255,.85)}
.footer__bottom{
  margin-top:34px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;gap:20px;flex-wrap:wrap;font-size:13.5px;align-items:center;
}
.footer__bottom a{min-height:44px;display:inline-flex;align-items:center}

/* --- Legal / subpages ----------------------------------------------------- */
.page{padding:64px 0 88px;background:#fff;min-height:60vh}
.page h1{font-size:clamp(28px,3.4vw,40px);font-weight:700;color:var(--forest-900);margin-bottom:12px}
.page h2{font-size:21px;font-weight:600;color:var(--forest-900);margin:36px 0 12px}
.page__body{max-width:760px}
.page__body p,.page__body li{color:var(--fg-soft)}
.page__body ul{margin:0 0 1.05em;padding-left:22px}
.page__body li{list-style:disc;margin-bottom:6px}
.back-link{
  display:inline-flex;align-items:center;gap:8px;color:var(--green-600);text-decoration:none;
  font-family:var(--font-head);font-weight:600;font-size:15px;margin-bottom:26px;min-height:44px;
}
.back-link:hover{text-decoration:underline}
.back-link svg{width:17px;height:17px}
.note{
  background:var(--green-100);border:1px solid #86C79E;border-radius:var(--radius);
  padding:18px 20px;font-size:15px;color:#14532D;margin-bottom:28px;
}
.note strong{color:#0D2E1E}

/* --- Motion ---------------------------------------------------------------
   One orchestrated entrance per view, nothing louder than a nudge.
   Easing is ease-out-quart: fast start, long settle, no bounce.          */

.js .reveal{
  opacity:0;transform:translateY(18px);
  transition:opacity .6s var(--ease),transform .6s var(--ease);
}
.reveal.is-in{opacity:1;transform:none}

/* Hero: the page introduces itself once, top to bottom */
.js .hero__stagger > *{
  opacity:0;transform:translateY(14px);
  animation:rise .7s var(--ease) forwards;
}
.hero__stagger > *:nth-child(1){animation-delay:.05s}
.hero__stagger > *:nth-child(2){animation-delay:.13s}
.hero__stagger > *:nth-child(3){animation-delay:.21s}
.hero__stagger > *:nth-child(4){animation-delay:.29s}
.js .creds{opacity:0;transform:translateY(14px);animation:rise .7s var(--ease) .34s forwards}
.js .creds li{opacity:0;animation:fade .5s var(--ease) forwards}
.creds li:nth-child(1){animation-delay:.50s}
.creds li:nth-child(2){animation-delay:.58s}
.creds li:nth-child(3){animation-delay:.66s}
.creds li:nth-child(4){animation-delay:.74s}

@keyframes rise{to{opacity:1;transform:none}}
@keyframes fade{to{opacity:1}}

/* The check mark draws itself — the site's one recurring gesture.
   "Geprüft" is the whole proposition, so it is the only thing that performs. */
.js .draw-check{
  stroke-dasharray:26;stroke-dashoffset:26;
  animation:draw .55s var(--ease) forwards;
}
.creds li:nth-child(1) .draw-check{animation-delay:.62s}
@keyframes draw{to{stroke-dashoffset:0}}

/* Quote: the block arrives, then it gets signed. Two beats, not one. */
.js .quote.reveal cite{opacity:0}
.js .quote.reveal cite::before{transform:scaleX(0)}
.js .quote.is-in cite{animation:fade .45s var(--ease) .62s forwards}
.js .quote.is-in cite::before{animation:signRule .42s var(--ease) .34s forwards}
@keyframes signRule{to{transform:scaleX(1)}}

/* Norm chips settle in from the left, then respond to the pointer */
.chip{
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease),
             transform var(--dur) var(--ease);
}
.js .chip{opacity:0;transform:translateY(8px);animation:rise .5s var(--ease) forwards}
.chip:nth-child(1){animation-delay:.80s}
.chip:nth-child(2){animation-delay:.85s}
.chip:nth-child(3){animation-delay:.90s}
.chip:nth-child(4){animation-delay:.95s}
.chip:nth-child(5){animation-delay:1.00s}
.chip:nth-child(6){animation-delay:1.05s}
.chip:nth-child(7){animation-delay:1.10s}
.chip:hover{border-color:rgba(255,255,255,.5);background:rgba(255,255,255,.07);transform:translateY(-2px)}

/* Reference wall fills in tile by tile, fast enough to read as one motion.
   The container itself must not fade, or the stagger reads as a double move. */
.js .refs.reveal{opacity:1;transform:none}
.js .refs li{opacity:0;transform:translateY(10px)}
.refs.is-in li{animation:rise .45s var(--ease) forwards}
.refs.is-in li:nth-child(1){animation-delay:.00s}
.refs.is-in li:nth-child(2){animation-delay:.03s}
.refs.is-in li:nth-child(3){animation-delay:.06s}
.refs.is-in li:nth-child(4){animation-delay:.09s}
.refs.is-in li:nth-child(5){animation-delay:.12s}
.refs.is-in li:nth-child(6){animation-delay:.15s}
.refs.is-in li:nth-child(7){animation-delay:.18s}
.refs.is-in li:nth-child(8){animation-delay:.21s}
.refs.is-in li:nth-child(9){animation-delay:.24s}
.refs.is-in li:nth-child(10){animation-delay:.27s}
.refs.is-in li:nth-child(11){animation-delay:.30s}
.refs.is-in li:nth-child(12){animation-delay:.33s}
.refs.is-in li:nth-child(13){animation-delay:.36s}
.refs.is-in li:nth-child(14){animation-delay:.39s}
.refs.is-in li:nth-child(15){animation-delay:.42s}
.refs.is-in li:nth-child(16){animation-delay:.45s}
.refs.is-in li:nth-child(17){animation-delay:.48s}
.refs.is-in li:nth-child(18){animation-delay:.51s}
.refs.is-in li:nth-child(19){animation-delay:.54s}
.refs.is-in li:nth-child(20){animation-delay:.57s}
.refs.is-in li:nth-child(21){animation-delay:.60s}
.refs.is-in li:nth-child(22){animation-delay:.63s}
.refs.is-in li:nth-child(23){animation-delay:.66s}

/* Accordion opens instead of jumping (grid trick: no height animation) */
.acc__wrap{display:grid;grid-template-rows:0fr;transition:grid-template-rows .35s var(--ease)}
.acc[open] .acc__wrap{grid-template-rows:1fr}
.acc__wrap > div{overflow:hidden}

/* Hero backdrop drifts against the scroll. Driven by the browser's own scroll
   timeline — no listener, no layout work, and it simply does not run where the
   feature is missing. Scaled up so the drift never exposes an edge. */
@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .hero__bg img{
      animation:heroDrift linear both;
      animation-timeline:view();
      animation-range:entry 0% exit 100%;
      will-change:transform;
    }
    @keyframes heroDrift{
      from{transform:translateY(-2.5%) scale(1.07)}
      to{transform:translateY(2.5%) scale(1.07)}
    }
  }
}

/* Buttons acknowledge the press */
.btn:active{transform:translateY(1px)}

/* Mail link: rule draws in from the left on hover */
.contact__mail{position:relative;text-decoration:none}
.contact__mail::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;background:currentColor;
  transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease);
}
.contact__mail:hover{text-decoration:none}
.contact__mail:hover::after,.contact__mail:focus-visible::after{transform:scaleX(1)}

/* Logo turns a few degrees on hover — noticed only by people who look twice */
.brand img{transition:transform .5s var(--ease)}
.brand:hover img{transform:rotate(-8deg) scale(1.06)}

/* --- Responsive ----------------------------------------------------------- */
@media (max-width:960px){
  .hero__grid,.about__grid,.contact__grid{grid-template-columns:1fr;gap:40px}
  .grid-3,.cards{grid-template-columns:1fr}
  .refs{grid-template-columns:repeat(2,1fr)}
  .nav{display:none}
  .header .btn{display:none}
  .burger{display:flex}
  .sec{padding:60px 0}
  .hero{padding-top:56px}
  .hero__grid{padding-bottom:52px}
  .acc__list{grid-template-columns:1fr}
  .topbar__mail{margin-left:0}
  .topbar__in{gap:6px 20px;font-size:13px}
  .topbar__long{display:none}
}
@media (max-width:520px){
  .refs{grid-template-columns:1fr}
  .form{padding:26px 22px}
  .quote{padding:24px 22px;font-size:17.5px}
  .cell,.card{padding:26px 22px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.01ms !important;animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
  .reveal,.js .reveal,
  .js .hero__stagger > *,.js .creds,.js .creds li,.js .chip,.js .refs li{
    opacity:1 !important;transform:none !important;animation:none !important;
  }
  .js .draw-check{stroke-dashoffset:0 !important;animation:none !important}
  .js .quote.reveal cite{opacity:1 !important}
  .js .quote.reveal cite::before{transform:none !important}
  .acc__wrap{transition:none}
  .hero__bg img{animation:none !important;transform:none !important}
}

@media print{
  .topbar,.header,.hero__bg,.drawer,.form,.footer__bottom{display:none}
  body{background:#fff;font-size:11pt}
  .hero{background:#fff;color:#000;padding:0}
  .hero::after{display:none}
}