/* IPS Insights — static vitrine site
   Self-contained, no external dependencies (privacy + speed friendly). */

:root{
  --navy:#0b1f33;
  --navy-2:#0e2942;
  --ink:#12212f;
  --muted:#5c6b7a;
  --line:#e6ecf2;
  --bg:#ffffff;
  --bg-soft:#f5f9fc;
  --accent:#0ca5b8;
  --accent-2:#0b7fa6;
  --accent-ink:#06485a;
  --radius:14px;
  --shadow:0 10px 30px rgba(11,31,51,.08);
  --shadow-sm:0 4px 14px rgba(11,31,51,.06);
  --maxw:1120px;
  --font:'Segoe UI',-apple-system,BlinkMacSystemFont,Roboto,Helvetica,Arial,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);color:var(--ink);
  background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{line-height:1.2;color:var(--navy);margin:0 0 .5em}
h1{font-size:clamp(2rem,4.5vw,3.2rem);letter-spacing:-.02em}
h2{font-size:clamp(1.6rem,3vw,2.2rem);letter-spacing:-.01em}
h3{font-size:1.15rem}
p{margin:0 0 1rem}
a{color:var(--accent-2);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section.alt{background:var(--bg-soft)}
.eyebrow{display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.12em;
  text-transform:uppercase;color:var(--accent-2);margin-bottom:.7rem}
.lead{font-size:1.15rem;color:var(--muted);max-width:660px}
.center{text-align:center}
.center .lead{margin-left:auto;margin-right:auto}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:.5rem;font-weight:600;font-size:.98rem;
  padding:.8rem 1.4rem;border-radius:10px;border:1px solid transparent;cursor:pointer;
  transition:transform .15s ease,box-shadow .15s ease,background .15s ease;text-decoration:none}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;
  box-shadow:0 8px 20px rgba(12,165,184,.28)}
.btn-primary:hover{box-shadow:0 12px 26px rgba(12,165,184,.36)}
.btn-ghost{background:transparent;color:var(--navy);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent-2)}
.btn-light{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.25)}
.btn-light:hover{background:rgba(255,255,255,.2)}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);
  backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{display:flex;align-items:center;gap:.34rem;font-weight:800;color:var(--navy);
  font-size:1.2rem;letter-spacing:-.01em}
.brand:hover{text-decoration:none}
.brand .brand-mark{color:var(--accent)}
.brand img{height:46px;width:auto;display:block}
.site-footer .brand img{height:52px}
.nav-links{display:flex;align-items:center;gap:26px;list-style:none;margin:0;padding:0}
.nav-links a{color:var(--ink);font-weight:500;font-size:.95rem}
.nav-links a:hover{color:var(--accent-2);text-decoration:none}
.nav-right{display:flex;align-items:center;gap:16px}
.lang-toggle{display:inline-flex;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.lang-toggle button{background:transparent;border:0;padding:.35rem .6rem;font-weight:700;
  font-size:.82rem;color:var(--muted);cursor:pointer}
.lang-toggle button.active{background:var(--navy);color:#fff}
.lang-toggle a,.lang-toggle .active{padding:.35rem .6rem;font-weight:700;font-size:.82rem;color:var(--muted);text-decoration:none;display:inline-block}
.lang-toggle a:hover{color:var(--accent-2);text-decoration:none}
.lang-toggle .active{background:var(--navy);color:#fff}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--navy);margin:4px 0}

/* Hero */
.hero{position:relative;color:#fff;overflow:hidden;
  background:radial-gradient(1200px 500px at 80% -10%,rgba(12,165,184,.35),transparent 60%),
             linear-gradient(160deg,var(--navy) 0%,var(--navy-2) 100%)}
.hero::after{content:"";position:absolute;inset:0;opacity:.5;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:44px 44px;mask-image:linear-gradient(to bottom,black,transparent 75%)}
.hero-inner{position:relative;padding:96px 0 104px;max-width:760px}
.hero h1{color:#fff}
.hero .lead{color:#c7d6e3}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-trust{margin-top:34px;font-size:.9rem;color:#9fb4c6;display:flex;flex-wrap:wrap;
  gap:8px 18px;align-items:center}
.hero-trust b{color:#fff;font-weight:600}

/* Grids */
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow-sm);transition:transform .18s ease,box-shadow .18s ease}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.card .ico{width:42px;height:42px;border-radius:10px;background:rgba(12,165,184,.1);
  color:var(--accent-2);display:grid;place-items:center;margin-bottom:14px}
.card h3{margin-bottom:.4rem}
.card p{color:var(--muted);font-size:.95rem;margin:0}

.audience{padding:22px;border-radius:var(--radius);background:#fff;border:1px solid var(--line)}
.audience h3{font-size:1.05rem}
.audience p{color:var(--muted);font-size:.92rem;margin:0}

/* Band (why review) */
.band{background:linear-gradient(135deg,var(--navy),var(--navy-2));color:#fff;border-radius:20px;
  padding:48px;display:flex;gap:32px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.band h2{color:#fff;margin-bottom:.4rem}
.band p{color:#c7d6e3;max-width:640px;margin:0}

/* Feature (sensors) */
.feature{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.feature .visual{aspect-ratio:4/3;border-radius:18px;border:1px solid var(--line);
  background:radial-gradient(600px 300px at 30% 20%,rgba(12,165,184,.18),transparent),
             linear-gradient(160deg,#0e2942,#0b1f33);position:relative;overflow:hidden}
.feature .visual::after{content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.18) 1.4px,transparent 1.4px);
  background-size:22px 22px;opacity:.5}

/* Projects */
.project{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;
  box-shadow:var(--shadow-sm);transition:transform .18s ease,box-shadow .18s ease}
.project:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.project .thumb{aspect-ratio:16/10;background:linear-gradient(160deg,#0e2942,#0b1f33);position:relative}
.project .thumb::after{content:"";position:absolute;inset:0;
  background-image:linear-gradient(90deg,rgba(12,165,184,.25) 1px,transparent 1px),
                   linear-gradient(rgba(12,165,184,.18) 1px,transparent 1px);
  background-size:26px 26px;opacity:.6}
.project .body{padding:20px}
.project .body h3{margin-bottom:.3rem}
.project .body p{color:var(--muted);font-size:.92rem;margin:0}
.tag{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  color:var(--accent-2);background:rgba(12,165,184,.1);padding:.25rem .6rem;border-radius:6px;margin-bottom:10px}

/* About */
.about{display:grid;grid-template-columns:1fr 360px;gap:44px;align-items:start}
.glance{background:linear-gradient(160deg,var(--navy),var(--navy-2));color:#fff;border-radius:18px;padding:28px}
.glance h3{color:#fff;margin-bottom:.2rem}
.glance ul{list-style:none;margin:14px 0 0;padding:0}
.glance li{padding:12px 0;border-bottom:1px solid rgba(255,255,255,.12);color:#d7e3ee;font-size:.94rem;
  display:flex;gap:10px;align-items:flex-start}
.glance li:last-child{border-bottom:0}
.glance li::before{content:"▹";color:var(--accent);font-weight:700}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.field{margin-bottom:16px}
.field label{display:block;font-weight:600;font-size:.9rem;margin-bottom:6px;color:var(--navy)}
.field input,.field textarea{width:100%;padding:.8rem .9rem;border:1px solid var(--line);
  border-radius:10px;font-family:inherit;font-size:.98rem;background:#fff}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(12,165,184,.15)}
.contact-direct a{display:flex;align-items:center;gap:12px;padding:14px 0;border-bottom:1px solid var(--line);
  color:var(--ink);font-weight:500}
.contact-direct a:hover{color:var(--accent-2);text-decoration:none}
.contact-direct .k{color:var(--muted);font-size:.85rem;font-weight:400}

/* Footer */
.site-footer{background:var(--navy);color:#9fb4c6;padding:48px 0;font-size:.92rem}
.site-footer .brand{color:#fff}
.footer-inner{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;align-items:center}
.site-footer a{color:#c7d6e3}

/* .editable = content still to finalise (photos/links). No visible marker. */
.editable{}

/* Credibility bar */
.credbar{background:var(--bg-soft);border-bottom:1px solid var(--line)}
.credbar .container{display:flex;flex-wrap:wrap;gap:12px 32px;justify-content:center;padding:20px 24px}
.credbar span{font-size:.82rem;font-weight:600;color:var(--muted);letter-spacing:.01em;
  display:flex;align-items:center;gap:9px}
.credbar span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);flex:none}

/* Process steps */
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-sm)}
.step h3{margin-bottom:.4rem}
.step p{color:var(--muted);font-size:.95rem;margin:0}

/* Image media containers (light background for product renders) */
.media{background:#eef4f8;display:grid;place-items:center;padding:18px;overflow:hidden}
.media img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;display:block}
.visual.media{background:#eef4f8}
.visual.media::after{content:none}
.project .thumb.media{background:#eef4f8}
.project .thumb.media::after{content:none}
.card-img{width:100%;height:170px;object-fit:contain;background:#eef4f8;border-radius:10px;padding:12px;margin-bottom:16px}
.project .thumb.thumb-empty{background:#eef4f8;display:grid;place-items:center}
.project .thumb.thumb-empty::after{content:none}
.project .thumb.thumb-empty img{width:64px;height:auto;opacity:.25}

/* Swiss flag */
.flag{display:inline-flex;line-height:0;vertical-align:middle}
.flag svg{border-radius:4px;box-shadow:0 1px 3px rgba(0,0,0,.18)}

/* Clickable detail cards + modal */
.project[data-modal],.card[data-modal]{cursor:pointer}
.proj-more{display:inline-block;margin-top:12px;color:var(--accent-2);font-weight:600;font-size:.9rem}
.card[data-modal] .proj-more{margin-top:8px}
.modal-src{display:none}
.modal-overlay{position:fixed;inset:0;background:rgba(8,20,33,.62);backdrop-filter:blur(3px);
  display:none;align-items:center;justify-content:center;z-index:100;padding:24px}
.modal-overlay.open{display:flex}
.modal-box{background:#fff;border-radius:16px;max-width:640px;width:100%;max-height:86vh;overflow:auto;
  position:relative;padding:36px;box-shadow:0 30px 80px rgba(0,0,0,.35)}
.modal-close{position:absolute;top:12px;right:16px;background:none;border:0;font-size:1.9rem;line-height:1;
  color:var(--muted);cursor:pointer}
.modal-content h3{font-size:1.5rem;margin:0 0 .5rem}
.modal-content p{color:var(--muted)}
.modal-content .m-tag{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.06em;
  text-transform:uppercase;color:var(--accent-2);background:rgba(12,165,184,.1);padding:.25rem .6rem;border-radius:6px;margin-bottom:14px}
.modal-content .tools{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:.95rem;color:var(--ink)}
.modal-content .tools b{display:block;color:var(--navy);margin-bottom:6px;font-size:.78rem;text-transform:uppercase;letter-spacing:.05em}
.modal-content img{max-width:100%;border-radius:10px;margin-top:18px;background:#eef4f8;padding:12px}

/* Article pages */
.article{max-width:760px;margin:0 auto}
.article h1{font-size:clamp(1.8rem,3.5vw,2.6rem);margin-bottom:.5rem}
.article .meta{color:var(--muted);font-size:.9rem;margin-bottom:28px;padding-bottom:20px;border-bottom:1px solid var(--line)}
.article-body{font-size:1.05rem;line-height:1.75;color:#243444}
.article-body h2,.article-body h3,.article-body h4{margin:1.9rem 0 .6rem;color:var(--navy);line-height:1.3}
.article-body h4{font-size:1.12rem}
.article-body p{margin:0 0 1.1rem}
.article-body ul,.article-body ol{margin:0 0 1.1rem;padding-left:1.4rem}
.article-body li{margin:.35rem 0}
.article-body img{width:100%;height:auto;border:1px solid var(--line);border-radius:10px;margin:1.1rem 0;background:#fff}
.article-body b,.article-body strong{color:var(--navy)}
.article-fig{color:var(--muted);font-size:.88rem;margin:-.4rem 0 1.4rem;font-style:italic}
.article-cta{margin-top:40px;padding:28px;background:var(--bg-soft);border:1px solid var(--line);border-radius:14px}
.article-cta h3{margin:0 0 .4rem}
.article-cta p{color:var(--muted);margin:0 0 1rem}
.article-list{display:grid;gap:22px;grid-template-columns:repeat(3,1fr)}
.article-card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-sm);transition:transform .18s ease,box-shadow .18s ease;color:var(--ink)}
.article-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);text-decoration:none}
.article-card h3{margin:.3rem 0}
.article-card p{color:var(--muted);font-size:.93rem;margin:0}
@media(max-width:820px){.article-list{grid-template-columns:1fr}}

/* Responsive */
@media(max-width:900px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .feature,.about,.contact-grid{grid-template-columns:1fr}
  .about .photo{max-width:280px}
}
@media(max-width:680px){
  .section{padding:64px 0}
  .nav-links{position:absolute;top:70px;left:0;right:0;background:#fff;flex-direction:column;
    align-items:flex-start;gap:0;padding:8px 24px;border-bottom:1px solid var(--line);display:none}
  .nav-links.open{display:flex}
  .nav-links li{width:100%}
  .nav-links a{display:block;padding:12px 0;width:100%;border-bottom:1px solid var(--line)}
  .nav-toggle{display:block}
  .grid-4,.grid-3,.grid-2{grid-template-columns:1fr}
  .band{padding:32px}
}