/*
|--------------------------------------------------------------------------
| Expertarium Enterprise
|--------------------------------------------------------------------------
| Copyright © 2026 Frederik Basedow
| All rights reserved.
|--------------------------------------------------------------------------
| Datei:
| assets/css/style.css
|
| Beschreibung:
| Zentrales Stylesheet der öffentlichen Expertarium-Seite. Definiert Branding,
| Layout, Karten, Buttons, Lesbarkeit, responsive Verhalten und öffentliche
| Gutachter-Werbeseiten.
|--------------------------------------------------------------------------
| Version: 4.1.0
| Letzte Änderung: 26.06.2026
|--------------------------------------------------------------------------
*/
:root{--bg:#071522;--bg2:#0d2230;--panel:#102738;--panel2:#153246;--text:#eef7fb;--muted:#a9bdc8;--line:rgba(255,255,255,.14);--brand:#48d6d2;--brand2:#7fb7ff;--dark:#06101a;--white:#fff;--shadow:0 24px 80px rgba(0,0,0,.28);--radius:28px;--max:1180px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:radial-gradient(circle at 85% 12%,rgba(72,214,210,.18),transparent 34%),linear-gradient(135deg,#07111f,#0d2230 55%,#082a2e);color:var(--text);line-height:1.6}.wrap{width:min(var(--max),calc(100% - 40px));margin-inline:auto}a{color:inherit}p{color:var(--muted)}.site-header{position:sticky;top:0;z-index:50;background:rgba(6,16,26,.88);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:22px}.brand{display:flex;align-items:center;gap:12px;text-decoration:none}.brand img{width:44px;height:44px;object-fit:contain}.brand strong{display:block;font-size:1.08rem;letter-spacing:.02em}.brand small{display:block;color:var(--muted);font-size:.76rem;margin-top:-2px}.main-nav{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.main-nav a{font-size:.92rem;text-decoration:none;color:#c7d6df;padding:10px 14px;border-radius:999px}.main-nav a:hover,.main-nav .login-link{background:rgba(255,255,255,.08);color:#fff}.login-link{border:1px solid var(--line)}.hero{position:relative;min-height:760px;display:grid;align-items:center;overflow:hidden;background:#081523}.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(4,12,20,.92) 0%,rgba(4,12,20,.82) 38%,rgba(4,12,20,.45) 67%,rgba(4,12,20,.62) 100%),url('../img/waermepumpe-aussenanlage.webp') center/cover no-repeat;filter:saturate(1.05)}.hero::after{content:"";position:absolute;inset:auto 0 0 0;height:190px;background:linear-gradient(transparent,var(--bg))}.hero-content{position:relative;z-index:2;max-width:760px;padding:96px 0 110px}.eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(72,214,210,.12);border:1px solid rgba(72,214,210,.32);color:#bdfefd;padding:8px 14px;border-radius:999px;font-weight:800;font-size:.82rem;letter-spacing:.02em}.hero-logo{width:min(420px,86vw);margin:0 0 28px;display:block;filter:drop-shadow(0 18px 36px rgba(0,0,0,.32))}.hero h1{font-size:clamp(2.5rem,6vw,5.7rem);line-height:.95;margin:18px 0 22px;letter-spacing:-.08em;max-width:850px}.hero .lead{font-size:clamp(1.08rem,1.6vw,1.33rem);color:#d8e6ed;max-width:760px}.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin:34px 0 16px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;text-decoration:none;border:1px solid var(--line);border-radius:999px;padding:13px 18px;font-weight:850;min-height:48px}.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#06101a;border:0}.btn-secondary{background:rgba(255,255,255,.08);color:#fff}.notice{font-size:.88rem;color:#bfd0d8;max-width:720px}.trust-strip{position:relative;z-index:3;margin-top:-68px}.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);background:rgba(12,31,45,.82);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:24px;overflow:hidden;backdrop-filter:blur(18px)}.trust-item{padding:22px;border-right:1px solid var(--line)}.trust-item:last-child{border-right:0}.trust-item strong{display:block;font-size:1rem}.trust-item span{color:var(--muted);font-size:.9rem}.section{padding:96px 0}.section-head{max-width:760px;margin-bottom:34px}.section h2{font-size:clamp(2rem,4vw,3.6rem);line-height:1.02;margin:12px 0 14px;letter-spacing:-.045em}.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.card{background:linear-gradient(145deg,rgba(20,43,60,.94),rgba(13,30,45,.9));border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:0 18px 50px rgba(0,0,0,.16);min-height:260px}.card h3{font-size:1.35rem;margin:0 0 12px}.card ul{padding-left:20px;margin:18px 0 0;color:#d9e6ec}.card li{margin:7px 0}.split{display:grid;grid-template-columns:1fr .92fr;gap:52px;align-items:center}.image-card{border-radius:30px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);background:#102738}.image-card img{display:block;width:100%;height:100%;object-fit:cover}.steps{counter-reset:steps;display:grid;gap:16px}.step{counter-increment:steps;display:grid;grid-template-columns:64px 1fr;gap:18px;align-items:start;background:rgba(255,255,255,.055);border:1px solid var(--line);border-radius:22px;padding:20px}.step::before{content:counter(steps);width:46px;height:46px;border-radius:16px;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#06101a;display:grid;place-items:center;font-weight:900}.quote{background:linear-gradient(145deg,rgba(72,214,210,.12),rgba(127,183,255,.08));border:1px solid rgba(72,214,210,.26);border-radius:var(--radius);padding:34px}.service-nav{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;border:1px solid var(--line);border-radius:24px;overflow:hidden;background:var(--line);margin-top:24px}.service-nav a{background:rgba(15,34,49,.94);padding:20px;text-decoration:none}.service-nav strong{display:block}.service-nav small{display:block;color:var(--muted);margin-top:4px}.cta-section{padding:40px 0 100px}.cta-card{display:flex;justify-content:space-between;align-items:center;gap:28px;background:linear-gradient(135deg,rgba(72,214,210,.15),rgba(127,183,255,.10));border:1px solid rgba(72,214,210,.25);border-radius:32px;padding:36px;box-shadow:var(--shadow)}.site-footer{border-top:1px solid var(--line);background:#06101a;padding:38px 0}.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:28px;align-items:start}.site-footer a{display:inline-block;margin-right:14px;color:#cbd8df}.copyright{color:var(--muted);text-align:right}.subhero{padding:90px 0 50px;background:linear-gradient(135deg,rgba(72,214,210,.12),transparent)}.subhero h1{font-size:clamp(2.2rem,5vw,4.8rem);line-height:1;margin:15px 0}.content{padding:58px 0 90px}.article{max-width:900px;background:rgba(13,31,45,.72);border:1px solid var(--line);border-radius:28px;padding:34px}.article h2{font-size:2rem;margin-top:36px}.article p,.article li{font-size:1.05rem}.login-bg{min-height:100vh;display:grid;place-items:center;background:radial-gradient(circle at 70% 0,rgba(72,214,210,.2),transparent 32%),linear-gradient(135deg,#07111f,#0d2230)}.login-panel{width:min(460px,calc(100% - 36px));background:rgba(13,31,45,.88);border:1px solid var(--line);border-radius:30px;padding:34px;box-shadow:var(--shadow)}.login-panel .brand{margin-bottom:26px}.form label{display:block;font-weight:800;margin:16px 0 7px}.form input{width:100%;height:50px;border-radius:15px;border:1px solid var(--line);background:rgba(255,255,255,.08);color:#fff;padding:0 14px}.login-error{background:rgba(255,86,86,.12);border:1px solid rgba(255,86,86,.35);padding:12px;border-radius:14px;color:#ffd1d1;margin:12px 0}.small{font-size:.9rem;color:var(--muted)}@media(max-width:900px){.nav-wrap{height:auto;padding:14px 0;align-items:flex-start}.main-nav{justify-content:flex-end}.hero{min-height:auto}.trust-grid,.card-grid,.split,.service-nav,.footer-grid{grid-template-columns:1fr}.trust-strip{margin-top:0}.trust-item{border-right:0;border-bottom:1px solid var(--line)}.hero-content{padding:68px 0}.cta-card{align-items:flex-start;flex-direction:column}.copyright{text-align:left}}@media(max-width:560px){.wrap{width:min(100% - 26px,var(--max))}.hero h1{font-size:2.55rem}.main-nav a{padding:8px 10px}.card{padding:22px}.section{padding:64px 0}}