.i-l{fill:none;stroke:var(--ill-ink);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.i-dl{fill:none;stroke:var(--ill-ink);stroke-width:1.8;stroke-dasharray:6 5;}
.i-d{fill:none;stroke:var(--ill-ink);stroke-width:1.4;stroke-dasharray:5 5;opacity:.6;}
.i-g{fill:none;stroke:var(--ill-ink);stroke-width:1.8;opacity:.5;}
.i-f{fill:var(--ill-fill);}
.i-f2{fill:var(--ill-fill2);}
.i-l.i-f{fill:var(--ill-fill);} .i-l.i-f2{fill:var(--ill-fill2);}
.i-w{fill:none;stroke:var(--petrol,#0b6ca6);stroke-width:2.2;stroke-linecap:round;}
.i-a{fill:none;stroke:var(--amber,#d38b3c);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;}
.i-a-fill{fill:var(--amber,#d38b3c);}
.i-l.i-a-soft{fill:color-mix(in srgb,var(--amber,#d38b3c) 30%,transparent);}
.i-dash-a{stroke-dasharray:6 5;}
.i-t{font:600 12.5px Inter,system-ui,sans-serif;fill:var(--ill-ink);display:var(--ill-labels,inline);}
.i-tw{fill:var(--petrol,#0b6ca6);}
.i-tagbox{display:var(--ill-labels,inline);fill:var(--surface,#fff);stroke:color-mix(in srgb,var(--petrol,#0b6ca6) 45%,transparent);stroke-width:1.2;}
.i-shadow{fill:color-mix(in srgb,var(--petrol,#0b6ca6) 10%,transparent);}
.i-bld{fill:var(--ill-fill2);}
.i-bar{fill:color-mix(in srgb,var(--petrol,#0b6ca6) 55%,transparent);} .i-bar-a{fill:var(--amber,#d38b3c);}
.i-screen{fill:#123a45;} .i-tscreen{fill:#bfe8f5;font-size:17px;font-weight:700;} .i-tscreen-s{fill:#8fc6d6;font-size:10px;}
.i-slab{fill:var(--ill-fill2);stroke:var(--ill-ink);stroke-width:1.2;}
.i-lit{fill:color-mix(in srgb,var(--amber,#d38b3c) 55%,transparent);}
.i-absorb{fill:color-mix(in srgb,var(--teal,#2e8579) 35%,transparent);}

/* =========================================================
   Bisson Acoustique — v3 (pro)
   Tokens → base → layout → components → sections
   ========================================================= */
:root{
  --bg:#f4f7f7;
  --surface:#ffffff;
  --surface-2:#edf2f2;
  --ink:#0f2a30;
  --ink-2:#435a60;
  --muted:#6a7d82;
  --line:rgba(15,42,48,.13);
  --line-2:rgba(15,42,48,.07);
  --petrol:#0b6ca6;
  --petrol-600:#095a8b;
  --deep:#0b3440;
  --teal:#2e8579;
  --amber:#c9812f;
  --ill-ink:#34525a; --ill-fill:#e8eff0; --ill-fill2:#d2e0e2;
  --shadow-sm:0 1px 2px rgba(15,42,48,.06), 0 2px 8px -2px rgba(15,42,48,.06);
  --shadow:0 24px 48px -28px rgba(9,40,48,.35), 0 2px 6px rgba(9,40,48,.05);
  --radius:12px; --radius-lg:20px;
  --wrap:1280px; --gutter:clamp(20px,4vw,48px);
  --header-h:80px;
  --font:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --font-display:"Inter Tight","Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --veil:78%;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#0a1b20; --surface:#0f252b; --surface-2:#143039; --ink:#e8f0f1; --ink-2:#aec2c5; --muted:#8aa1a5;
    --line:rgba(220,236,238,.14); --line-2:rgba(220,236,238,.08);
    --petrol:#5eb1e0; --petrol-600:#7dc1e8; --deep:#06161a; --teal:#6cc2b4; --amber:#e3a35c;
    --ill-ink:#a8c3c7; --ill-fill:#15343c; --ill-fill2:#1e4550;
    --shadow-sm:0 1px 2px rgba(0,0,0,.3); --shadow:0 24px 48px -28px rgba(0,0,0,.7);
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#0a1b20; --surface:#0f252b; --surface-2:#143039; --ink:#e8f0f1; --ink-2:#aec2c5; --muted:#8aa1a5;
  --line:rgba(220,236,238,.14); --line-2:rgba(220,236,238,.08);
  --petrol:#5eb1e0; --petrol-600:#7dc1e8; --deep:#06161a; --teal:#6cc2b4; --amber:#e3a35c;
  --ill-ink:#a8c3c7; --ill-fill:#15343c; --ill-fill2:#1e4550;
  --shadow-sm:0 1px 2px rgba(0,0,0,.3); --shadow:0 24px 48px -28px rgba(0,0,0,.7);
  color-scheme:dark;
}

/* ---------- base ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{font-size:16px;scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 12px);-webkit-text-size-adjust:100%;}
@media (min-width:1600px){html{font-size:17px;} :root{--wrap:1360px;}}
@media (min-width:2200px){html{font-size:18.5px;} :root{--wrap:1480px;}}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:1rem;line-height:1.65;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;font-feature-settings:"cv11","ss01";}
h1,h2,h3,h4{font-family:var(--font-display);color:var(--ink);margin:0;font-weight:600;letter-spacing:-.02em;line-height:1.12;text-wrap:balance;}
p{margin:0;text-wrap:pretty;}
a{color:inherit;}
img{max-width:100%;display:block;}
button{font:inherit;color:inherit;}
.wrap{width:100%;max-width:calc(var(--wrap) + 2*var(--gutter));margin:0 auto;padding:0 var(--gutter);}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}
::selection{background:var(--petrol);color:#fff;}
:focus-visible{outline:2px solid var(--petrol);outline-offset:3px;border-radius:4px;}
.skip-link{position:absolute;left:-999px;top:12px;z-index:200;background:var(--petrol);color:#fff;padding:10px 16px;border-radius:8px;text-decoration:none;}
.skip-link:focus{left:12px;}

.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:.78rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--petrol);}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:currentColor;opacity:.7;}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:0 22px;border-radius:10px;
  font-weight:600;font-size:.95rem;letter-spacing:-.005em;text-decoration:none;border:1px solid transparent;cursor:pointer;
  transition:background .2s ease,border-color .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease;white-space:nowrap;}
.btn svg{width:18px;height:18px;flex:none;}
.btn-primary{background:var(--petrol);color:#fff;box-shadow:0 10px 24px -14px color-mix(in srgb,var(--petrol) 80%,transparent);}
:root[data-theme="dark"] .btn-primary{color:#06202a;}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .btn-primary{color:#06202a;}}
.btn-primary:hover{background:var(--petrol-600);transform:translateY(-1px);}
.btn-outline{background:color-mix(in srgb,var(--surface) 70%,transparent);border-color:var(--line);color:var(--ink);}
.btn-outline:hover{border-color:var(--petrol);color:var(--petrol);}
.btn-sm{min-height:40px;padding:0 16px;font-size:.9rem;}
.link-arrow{display:inline-flex;align-items:center;gap:8px;color:var(--petrol);font-weight:600;font-size:.92rem;text-decoration:none;}
.link-arrow svg{width:16px;height:16px;transition:transform .2s ease;}

/* ---------- wave field (fixed background) ---------- */
.wave-field{position:fixed;inset:0;z-index:0;overflow:hidden;pointer-events:none;transition:opacity .4s linear;}
.wave-group{position:absolute;inset:-18% 0;width:100%;height:136%;will-change:transform;}
.wave-drift{position:absolute;width:300%;height:100%;left:0;top:0;display:block;}
.wave-drift-slow{animation:driftLeft 130s linear infinite;}
.wave-drift-mid{animation:driftRight 85s linear infinite;}
.wave-drift-fast{animation:driftLeft 54s linear infinite;}
.wave-fade{position:absolute;inset:0;background:linear-gradient(to bottom,var(--bg) 0%,transparent 6%,transparent 94%,var(--bg) 100%);}
@keyframes driftLeft{from{transform:translateX(0);}to{transform:translateX(-33.333%);}}
@keyframes driftRight{from{transform:translateX(-33.333%);}to{transform:translateX(0);}}
main,footer,header{position:relative;z-index:1;}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:50;height:var(--header-h);display:flex;align-items:center;
  background:color-mix(in srgb,var(--bg) 72%,transparent);backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid transparent;transition:border-color .3s ease,background .3s ease,box-shadow .3s ease;}
.site-header.is-scrolled{border-bottom-color:var(--line-2);background:color-mix(in srgb,var(--surface) 88%,transparent);box-shadow:0 10px 30px -24px rgba(9,40,48,.45);}
.nav{display:flex;align-items:center;gap:28px;}
.brand{display:flex;align-items:center;text-decoration:none;flex:none;}
.brand img{height:50px;width:auto;}
.brand .logo-d{display:none;}
:root[data-theme="dark"] .brand .logo-l{display:none;} :root[data-theme="dark"] .brand .logo-d{display:block;}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .brand .logo-l{display:none;} :root:not([data-theme="light"]) .brand .logo-d{display:block;}}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none;margin:0 0 0 auto;padding:0;}
.nav-links a{display:block;padding:10px 14px;border-radius:8px;text-decoration:none;font-size:.94rem;font-weight:500;color:var(--ink-2);transition:color .2s ease,background .2s ease;}
.nav-links a:hover,.nav-links a[aria-current="true"]{color:var(--ink);background:var(--line-2);}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-phone{display:none;align-items:center;gap:8px;text-decoration:none;font-weight:600;font-size:.92rem;color:var(--ink);padding:0 6px;}
.nav-phone svg{width:17px;height:17px;color:var(--petrol);}
@media (min-width:1360px){.nav-phone{display:inline-flex;}}
.icon-btn{width:42px;height:42px;border-radius:10px;border:1px solid var(--line);background:color-mix(in srgb,var(--surface) 70%,transparent);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;color:var(--ink-2);flex:none;}
.icon-btn:hover{color:var(--ink);border-color:color-mix(in srgb,var(--ink) 30%,transparent);}
.icon-btn svg{width:19px;height:19px;}
.theme-toggle .i-sun{display:none;}
:root[data-theme="dark"] .theme-toggle .i-sun{display:block;} :root[data-theme="dark"] .theme-toggle .i-moon{display:none;}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .theme-toggle .i-sun{display:block;} :root:not([data-theme="light"]) .theme-toggle .i-moon{display:none;}}
.menu-btn{display:none;}
@media (max-width:1023px){
  :root{--header-h:66px;}
  .nav{gap:12px;}
  .brand img{height:40px;}
  .menu-btn{display:inline-flex;}
  .nav-cta{display:none;}
  .nav-links{position:fixed;left:12px;right:12px;top:calc(var(--header-h) + 6px);margin:0;flex-direction:column;align-items:stretch;gap:2px;
    background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:10px;box-shadow:var(--shadow);
    opacity:0;transform:translateY(-8px);pointer-events:none;transition:opacity .2s ease,transform .2s ease;}
  .nav-links.open{opacity:1;transform:none;pointer-events:auto;}
  .nav-links a{padding:14px 14px;font-size:1rem;}
  .nav-links .mobile-cta{display:block;margin-top:6px;}
  .nav-actions{margin-left:auto;}
}
.nav-links .mobile-cta{display:none;}
.nav-links .mobile-cta a{background:var(--petrol);color:#fff;text-align:center;font-weight:600;}

/* ---------- sections ---------- */
section{position:relative;}
.section{padding:clamp(72px,9vw,128px) 0;}
.section-veil{background:color-mix(in srgb,var(--surface) var(--veil),transparent);border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2);}
.section-head{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:32px 64px;align-items:end;margin-bottom:clamp(40px,5vw,64px);}
.section-head h2{font-size:clamp(1.9rem,1.2rem + 1.9vw,3rem);margin-top:14px;}
.section-head .intro{color:var(--ink-2);font-size:1.06rem;max-width:56ch;}
@media (max-width:860px){.section-head{grid-template-columns:1fr;align-items:start;}}

/* ---------- hero ---------- */
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg,color-mix(in srgb,var(--bg) 88%,transparent) 0%,color-mix(in srgb,var(--bg) 70%,transparent) 42%,transparent 68%);}
.hero > *{position:relative;}
@media (max-width:1023px){.hero::before{background:color-mix(in srgb,var(--bg) 62%,transparent);}}
.hero{padding:clamp(40px,6vw,88px) 0 0;min-height:min(calc(100svh - var(--header-h)),980px);display:flex;flex-direction:column;}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:clamp(32px,5vw,80px);align-items:center;flex:1;}
.hero h1{font-size:clamp(2.3rem,1.3rem + 3vw,4.2rem);font-weight:600;letter-spacing:-.022em;line-height:1.06;margin-top:20px;}
.hero h1 em{font-style:normal;color:var(--petrol);}
.hero .lead{font-size:clamp(1.05rem,.98rem + .3vw,1.25rem);color:var(--ink-2);max-width:40em;margin-top:24px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:36px;}
.hero-logo{position:relative;background:color-mix(in srgb,#f7faf9 82%,transparent);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  border:1px solid rgba(15,42,48,.08);border-radius:var(--radius-lg);padding:clamp(28px,4vw,56px) clamp(24px,3vw,44px);box-shadow:var(--shadow);}
:root[data-theme="dark"] .hero-logo{background:color-mix(in srgb,#f7faf9 95%,transparent);}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .hero-logo{background:color-mix(in srgb,#f7faf9 95%,transparent);}}
.hero-logo img{width:100%;max-width:520px;margin:0 auto;height:auto;}
.hero-logo figcaption{margin-top:22px;padding-top:18px;border-top:1px solid rgba(15,42,48,.1);display:flex;justify-content:space-between;align-items:baseline;gap:4px 16px;flex-wrap:wrap;
  font-size:.85rem;line-height:1.4;color:#4a6166;}
.hero-logo figcaption b{color:#0f2a30;font-weight:600;}
.hero-facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));margin-top:clamp(40px,6vw,72px);border-top:1px solid var(--line);}
.fact{padding:22px 24px 26px 0;}
.fact + .fact{padding-left:24px;border-left:1px solid var(--line);}
.fact b{display:block;font-family:var(--font-display);font-size:clamp(1.6rem,1.2rem + 1vw,2.2rem);font-weight:600;letter-spacing:-.02em;color:var(--ink);}
.fact span{display:block;color:var(--ink-2);font-size:.92rem;margin-top:4px;}
@media (max-width:1023px){
  .hero{min-height:0;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-logo{order:-1;max-width:560px;}
}
@media (max-width:640px){
  .hero-facts{grid-template-columns:1fr;}
  .fact,.fact + .fact{padding:16px 0;border-left:0;border-bottom:1px solid var(--line);}
  .hero-actions .btn{flex:1 1 auto;}
  .hero-logo figcaption{display:none;}
}

/* ---------- references band ---------- */
.refs{padding:26px 0;}
.refs-inner{display:flex;align-items:center;gap:18px 40px;flex-wrap:wrap;}
.refs-group{display:flex;align-items:center;gap:12px 18px;flex-wrap:wrap;}
.refs-label{font-size:.78rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);flex:none;}
.refs-list{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:0;padding:0;}
.refs-list li{font-size:.86rem;font-weight:500;color:var(--ink-2);padding:6px 12px;border:1px solid var(--line);border-radius:999px;background:color-mix(in srgb,var(--surface) 70%,transparent);}
.refs-sep{display:none;}

/* ---------- services ---------- */
.svc-group + .svc-group{margin-top:clamp(56px,6vw,88px);}
.svc-group-head{display:grid;grid-template-columns:auto 1fr;align-items:baseline;gap:6px 16px;padding-bottom:18px;margin-bottom:24px;border-bottom:1px solid var(--line);}
.svc-group-head h3{font-size:clamp(1.3rem,1.1rem + .5vw,1.6rem);}
.svc-group-head .law{font-size:.85rem;font-weight:600;color:var(--petrol);letter-spacing:.02em;}
.svc-group-head p{grid-column:1 / -1;color:var(--ink-2);font-size:.98rem;max-width:70ch;}
.svc-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
@media (max-width:1279px){.svc-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
@media (max-width:900px){.svc-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:560px){.svc-grid{grid-template-columns:1fr;}}
.svc{position:relative;display:flex;flex-direction:column;text-align:left;text-decoration:none;cursor:pointer;
  background:color-mix(in srgb,var(--surface) 92%,transparent);border:1px solid var(--line-2);border-radius:var(--radius-lg);overflow:hidden;
  transition:transform .3s cubic-bezier(.2,.7,.2,1),box-shadow .3s ease,border-color .3s ease;box-shadow:var(--shadow-sm);}
.svc:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--line);}
.svc:hover .link-arrow svg{transform:translateX(4px);}
.svc-ill{--ill-labels:none;background:var(--surface-2);aspect-ratio:48/28;border-bottom:1px solid var(--line-2);}
.svc-ill svg{width:100%;height:100%;display:block;}
.svc-body{display:flex;flex-direction:column;gap:10px;padding:20px 22px 22px;flex:1;}
.svc-body h4{font-size:1.1rem;line-height:1.25;letter-spacing:-.01em;}
.svc-body p{color:var(--ink-2);font-size:.93rem;line-height:1.55;}
.svc-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:2px;}
.svc-tags span{font-size:.75rem;font-weight:600;color:var(--teal);background:color-mix(in srgb,var(--teal) 11%,transparent);padding:3px 8px;border-radius:6px;}
.svc-body .link-arrow{margin-top:auto;padding-top:6px;}
.svc-cta{display:flex;flex-direction:column;justify-content:space-between;gap:20px;padding:28px;border-radius:var(--radius-lg);
  background:linear-gradient(145deg,var(--deep),color-mix(in srgb,var(--deep) 70%,var(--petrol)));color:#e7f1f3;grid-column:span 2;}
.svc-cta h4{color:#fff;font-size:1.35rem;}
.svc-cta p{color:#b9d0d4;max-width:46ch;}
.svc-cta ul{list-style:none;margin:18px 0 0;padding:0;display:grid;gap:8px;}
.svc-cta li a{display:inline-flex;align-items:center;gap:10px;color:#e7f1f3;text-decoration:none;font-weight:500;}
.svc-cta li a:hover{color:#fff;text-decoration:underline;}
.svc-cta li svg{width:18px;height:18px;color:#8ccbe6;}
.svc-cta .btn-primary{background:#fff;color:var(--deep);box-shadow:none;align-self:flex-start;}
.svc-cta .btn-primary:hover{background:#e8f3f6;}
@media (max-width:560px){.svc-cta{grid-column:auto;}}

/* ---------- service sheets (dialog) ---------- */
.js .svc-sheets{display:none;}
.svc-sheets{margin-top:64px;}
.sheet + .sheet{margin-top:48px;padding-top:48px;border-top:1px solid var(--line);}
.sheet-ill{background:var(--surface-2);border-radius:var(--radius);overflow:hidden;}
.sheet-ill svg{display:block;width:100%;height:auto;max-height:300px;}
.sheet-head{margin:22px 0 10px;}
.sheet-head .eyebrow{font-size:.72rem;}
.sheet-head h3{font-size:clamp(1.5rem,1.2rem + 1vw,2.1rem);margin-top:10px;}
.sheet-lead{font-size:1.08rem;color:var(--ink);margin:14px 0 0;}
.sheet-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:28px 40px;margin-top:28px;}
@media (max-width:760px){.sheet-grid{grid-template-columns:1fr;}}
.sheet h5{font-family:var(--font);font-size:.76rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:0 0 10px;}
.sheet-block + .sheet-block{margin-top:26px;}
.sheet p{color:var(--ink-2);}
.checklist{list-style:none;margin:0;padding:0;display:grid;gap:10px;}
.checklist li{position:relative;padding-left:28px;color:var(--ink);}
.checklist li::before{content:"";position:absolute;left:0;top:.42em;width:16px;height:16px;border-radius:50%;
  background:color-mix(in srgb,var(--petrol) 14%,transparent) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4.5 8.2l2.2 2.2 4.8-4.8' fill='none' stroke='%230b6ca6' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/16px no-repeat;}
.aside-card{background:var(--surface-2);border-radius:var(--radius);padding:20px 20px 22px;}
.law-list{list-style:none;margin:0;padding:0;display:grid;gap:8px;}
.law-list li{font-size:.92rem;color:var(--ink);padding-left:14px;border-left:2px solid var(--petrol);line-height:1.45;}
.dot-list{margin:0;padding-left:18px;color:var(--ink-2);display:grid;gap:4px;font-size:.95rem;}
.sheet-note{margin-top:22px;font-size:.9rem;color:var(--muted);display:flex;gap:10px;align-items:flex-start;}
.sheet-note svg{width:18px;height:18px;flex:none;margin-top:2px;color:var(--amber);}

dialog.svc-dialog{width:min(980px,calc(100% - 32px));max-height:min(92vh,1100px);padding:0;border:0;border-radius:var(--radius-lg);
  background:var(--surface);color:var(--ink);box-shadow:0 40px 100px -30px rgba(0,0,0,.5);overflow:hidden;}
dialog.svc-dialog::backdrop{background:rgba(6,22,27,.55);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);}
dialog.svc-dialog[open]{display:flex;flex-direction:column;animation:dlgIn .28s cubic-bezier(.2,.7,.2,1);}
@keyframes dlgIn{from{opacity:0;transform:translateY(14px) scale(.985);}to{opacity:1;transform:none;}}
.dlg-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px 12px 24px;border-bottom:1px solid var(--line-2);flex:none;}
.dlg-bar .count{font-size:.85rem;color:var(--muted);font-variant-numeric:tabular-nums;}
.dlg-bar .nav-btns{display:flex;gap:8px;}
.dlg-scroll{overflow:auto;padding:24px 28px 8px;overscroll-behavior:contain;}
.dlg-foot{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;padding:16px 24px;border-top:1px solid var(--line-2);background:var(--surface);flex:none;}
.dlg-foot p{font-size:.9rem;color:var(--ink-2);}
.dlg-foot .actions{display:flex;gap:10px;flex-wrap:wrap;}
@media (max-width:640px){
  dialog.svc-dialog{width:100%;max-width:100%;height:100%;max-height:100%;border-radius:0;margin:0;}
  .dlg-scroll{padding:18px 18px 8px;}
  .dlg-foot{padding:12px 16px calc(12px + env(safe-area-inset-bottom));}
  .dlg-foot p{display:none;}
  .dlg-foot .actions{width:100%;}
  .dlg-foot .actions .btn{flex:1;}
}

/* ---------- approach ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;list-style:none;margin:0;padding:0;counter-reset:step;}
.step{position:relative;padding:28px 24px 30px;border-radius:var(--radius-lg);background:color-mix(in srgb,var(--surface) 88%,transparent);border:1px solid var(--line-2);}
.step::before{counter-increment:step;content:"0" counter(step);display:block;font-family:var(--font-display);font-size:.9rem;font-weight:600;color:var(--petrol);letter-spacing:.06em;margin-bottom:28px;}
.step::after{content:"";position:absolute;left:24px;right:24px;top:58px;height:1px;background:linear-gradient(90deg,var(--petrol),transparent);opacity:.35;}
.step h3{font-size:1.15rem;margin-bottom:10px;}
.step p{color:var(--ink-2);font-size:.95rem;}
@media (max-width:1023px){.steps{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:560px){.steps{grid-template-columns:1fr;}}

/* ---------- about ---------- */
.about-grid{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.5fr) minmax(0,.95fr);gap:clamp(28px,4vw,56px);align-items:start;}
@media (max-width:1180px){.about-grid{grid-template-columns:minmax(0,.8fr) minmax(0,1.4fr);} .limits{grid-column:1 / -1;}}
@media (max-width:760px){.about-grid{grid-template-columns:1fr;} .about-photo{max-width:360px;}}
.about-photo img{width:100%;height:auto;aspect-ratio:4/5;object-fit:cover;border-radius:var(--radius-lg);box-shadow:var(--shadow);}
.about-photo figcaption{margin-top:16px;}
.about-photo figcaption b{display:block;font-weight:600;}
.about-photo figcaption span{display:block;font-size:.9rem;color:var(--ink-2);}
.about-copy h2{font-size:clamp(1.8rem,1.3rem + 1.4vw,2.6rem);margin-top:14px;}
.about-copy > p{color:var(--ink-2);margin-top:18px;font-size:1.04rem;}
.strengths{display:grid;gap:18px;margin-top:32px;list-style:none;padding:0;}
.strengths li{display:grid;grid-template-columns:40px 1fr;gap:14px;align-items:start;}
.strengths .ic{width:40px;height:40px;border-radius:10px;background:color-mix(in srgb,var(--petrol) 12%,transparent);color:var(--petrol);display:flex;align-items:center;justify-content:center;}
.strengths .ic svg{width:20px;height:20px;}
.strengths b{display:block;font-weight:600;color:var(--ink);}
.strengths span{display:block;color:var(--ink-2);font-size:.95rem;}
.about-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px;}
.limits{background:color-mix(in srgb,var(--surface-2) 90%,transparent);border:1px solid var(--line-2);border-radius:var(--radius-lg);padding:26px 24px;}
.limits h3{font-size:1.08rem;}
.limits p{color:var(--ink-2);font-size:.93rem;margin-top:8px;}
.limits ul{list-style:none;margin:16px 0 0;padding:0;display:grid;gap:12px;}
.limits li{display:grid;grid-template-columns:18px 1fr;gap:10px;font-size:.93rem;color:var(--ink-2);}
.limits li svg{width:16px;height:16px;margin-top:4px;color:var(--amber);}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:24px;align-items:stretch;}
@media (max-width:900px){.contact-grid{grid-template-columns:1fr;}}
.contact-card{background:var(--surface);border:1px solid var(--line-2);border-radius:var(--radius-lg);padding:clamp(24px,3vw,36px);box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:6px;}
.contact-row{display:grid;grid-template-columns:44px 1fr;gap:14px;align-items:center;padding:12px 0;text-decoration:none;border-bottom:1px solid var(--line-2);}
.contact-row:last-of-type{border-bottom:0;}
.contact-row .ic{width:44px;height:44px;border-radius:11px;background:var(--surface-2);color:var(--petrol);display:flex;align-items:center;justify-content:center;}
.contact-row .ic svg{width:20px;height:20px;}
.contact-row small{display:block;font-size:.78rem;color:var(--muted);font-weight:500;letter-spacing:.02em;}
.contact-row strong{display:block;font-weight:600;font-size:1.02rem;color:var(--ink);word-break:break-word;}
a.contact-row:hover strong{color:var(--petrol);}
.contact-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}
.qr{display:flex;align-items:center;gap:16px;margin-top:22px;padding-top:20px;border-top:1px solid var(--line-2);}
.qr img{width:184px;height:184px;border-radius:10px;background:#fff;padding:6px;border:1px solid var(--line-2);flex:none;}
.qr p{font-size:.9rem;color:var(--ink-2);}
.qr a{color:var(--petrol);font-weight:600;}
.map{position:relative;min-height:420px;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line-2);box-shadow:var(--shadow-sm);background:var(--surface-2);}
.map iframe{position:absolute;inset:0;width:100%;height:100%;border:0;}

/* ---------- footer ---------- */
.site-footer{background:color-mix(in srgb,var(--deep) 94%,transparent);color:#c8dadd;padding:clamp(56px,7vw,88px) 0 28px;}
:root[data-theme="dark"] .site-footer{background:color-mix(in srgb,#040f12 92%,transparent);}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.3fr) repeat(3,minmax(0,1fr));gap:40px;}
@media (max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr;}}
.footer-logo{height:52px;width:auto;}
.footer-brand p{margin-top:18px;font-size:.93rem;color:#9fbabe;max-width:34ch;}
.site-footer h4{font-family:var(--font);font-size:.76rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:#7fa1a6;margin-bottom:16px;}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:10px;}
.site-footer a{color:#dcebed;text-decoration:none;font-size:.94rem;}
.site-footer a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.site-footer button.linklike{background:none;border:0;padding:0;cursor:pointer;color:#dcebed;font-size:.94rem;text-align:left;}
.site-footer button.linklike:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.privacy{margin-top:48px;border-top:1px solid rgba(255,255,255,.1);padding-top:22px;}
.privacy summary{cursor:pointer;font-size:.9rem;font-weight:600;color:#dcebed;list-style:none;display:inline-flex;align-items:center;gap:8px;}
.privacy summary::-webkit-details-marker{display:none;}
.privacy summary svg{width:16px;height:16px;transition:transform .2s ease;}
.privacy[open] summary svg{transform:rotate(180deg);}
.privacy-body{max-width:760px;font-size:.9rem;color:#a9c4c8;margin-top:12px;display:grid;gap:10px;}
.privacy-body a{text-decoration:underline;}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-top:28px;font-size:.85rem;color:#83a3a8;}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1);}
.reveal.in{opacity:1;transform:none;}
.no-js .reveal{opacity:1;transform:none;}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  .wave-drift-slow,.wave-drift-mid,.wave-drift-fast{animation:none !important;}
  .wave-group{transform:none !important;}
  dialog.svc-dialog[open]{animation:none;}
  .svc,.btn{transition:none;}
}
@media print{.wave-field,.site-header,.map,.svc-dialog{display:none !important;} .js .svc-sheets{display:block;} body{background:#fff;}}
@media (max-width:1279px) and (min-width:901px){.svc-cta{grid-column:auto;}}


/* ---------- service pages ---------- */
.sheet-head h1{font-size:clamp(1.9rem,1.3rem + 1.8vw,2.9rem);margin-top:12px;}
.svc-dialog .sheet-head h1{font-size:clamp(1.5rem,1.2rem + 1vw,2.1rem);}
.page-main{padding:clamp(28px,4vw,56px) 0 clamp(64px,8vw,112px);}
.page-card{background:color-mix(in srgb,var(--surface) 94%,transparent);border:1px solid var(--line-2);border-radius:var(--radius-lg);
  padding:clamp(20px,3.4vw,44px);box-shadow:var(--shadow-sm);max-width:1100px;margin:0 auto;}
.breadcrumb{max-width:1100px;margin:0 auto 18px;font-size:.88rem;color:var(--muted);}
.breadcrumb ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px;}
.breadcrumb li+li::before{content:"/";margin-right:6px;opacity:.6;}
.breadcrumb a{color:var(--ink-2);text-decoration:none;}
.breadcrumb a:hover{color:var(--petrol);text-decoration:underline;}
.page-cta{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;max-width:1100px;margin:28px auto 0;padding:24px;border-radius:var(--radius);
  background:linear-gradient(145deg,var(--deep),color-mix(in srgb,var(--deep) 70%,var(--petrol)));color:#dcebed;}
.page-cta h2{color:#fff;font-size:1.3rem;}
.page-cta p{color:#b9d0d4;margin-top:6px;}
.page-cta .actions{display:flex;flex-wrap:wrap;gap:10px;}
.page-cta .btn-primary{background:#fff;color:var(--deep);box-shadow:none;}
.page-cta .btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.35);}
.related{max-width:1100px;margin:40px auto 0;}
.related h2{font-size:1.2rem;margin-bottom:16px;}
.related ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:10px;}
.related ul a{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:14px 16px;border-radius:10px;text-decoration:none;
  background:color-mix(in srgb,var(--surface) 90%,transparent);border:1px solid var(--line-2);color:var(--ink);font-weight:500;font-size:.95rem;}
.related ul a:hover{border-color:var(--petrol);color:var(--petrol);}
.related ul a svg{width:16px;height:16px;flex:none;color:var(--petrol);}
.back-link{display:inline-flex;align-items:center;gap:8px;margin-top:28px;color:var(--petrol);font-weight:600;text-decoration:none;}
.back-link svg{width:16px;height:16px;transform:rotate(180deg);}
.svc-dialog .page-only{display:none !important;}
.dlg-loading{padding:60px 0;text-align:center;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:12px;max-width:980px;}
.faq details{background:color-mix(in srgb,var(--surface) 92%,transparent);border:1px solid var(--line-2);border-radius:14px;padding:0 22px;transition:border-color .2s ease;}
.faq details[open]{border-color:var(--line);box-shadow:var(--shadow-sm);}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:20px 0;
  font-family:var(--font-display);font-weight:600;font-size:1.06rem;letter-spacing:-.01em;color:var(--ink);}
.faq summary::-webkit-details-marker{display:none;}
.faq summary svg{width:20px;height:20px;flex:none;color:var(--petrol);transition:transform .2s ease;}
.faq details[open] summary svg{transform:rotate(180deg);}
.faq details p{color:var(--ink-2);padding:0 0 22px;max-width:78ch;}

.sheet .h5{font-family:var(--font);font-size:.76rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:0 0 10px;}