/*
 * Copyright (c) 2026 TNSystem. Alle Rechte vorbehalten.
 * Datei: assets/css/site.css
 * Zweck: Helles, vom TN-Monogramm abgeleitetes Designsystem der TNSystem-Homepage.
 */
:root{--ink:#0a2340;--ink-2:#173b5c;--teal:#007a86;--teal-dark:#005969;--copper:#b8642d;--copper-light:#d6935e;--ivory:#fffaf2;--cream:#f6efe5;--paper:#fffefd;--line:#dfd5c8;--muted:#5e6972;--shadow:0 24px 70px rgba(12,35,61,.12);--radius:26px;--container:min(1180px,calc(100% - 40px));--ease:cubic-bezier(.22,1,.36,1)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--ivory);color:var(--ink);font-family:Inter,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}button{cursor:pointer}.container{width:var(--container);margin-inline:auto}.narrow{max-width:900px}.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:fixed;top:10px;left:10px;z-index:1000;padding:10px 16px;background:var(--ink);color:white;border-radius:10px;transform:translateY(-150%)}.skip-link:focus{transform:none}.eyebrow{display:inline-block;color:var(--copper);font-size:.76rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase}.button{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:0 24px;border:1px solid var(--copper);border-radius:14px;background:linear-gradient(135deg,var(--copper-light),var(--copper));color:#fff;font-weight:750;box-shadow:0 10px 28px rgba(184,100,45,.2);transition:transform .25s var(--ease),box-shadow .25s}.button:hover,.button:focus-visible{transform:translateY(-2px);box-shadow:0 15px 34px rgba(184,100,45,.28)}.button-small{min-height:42px;padding:0 17px;border-radius:12px}.button-ghost{background:rgba(255,255,255,.65);color:var(--ink);border-color:rgba(10,35,64,.18);box-shadow:none}.button-light{background:var(--paper);color:var(--ink);border-color:var(--paper)}.text-link{display:inline-flex;align-items:center;color:var(--teal-dark);font-weight:800}.text-link span{margin-left:6px;transition:transform .2s}.text-link:hover span{transform:translateX(4px)}
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,250,242,.76);border-bottom:1px solid transparent;backdrop-filter:blur(18px);transition:.25s}.site-header.scrolled{background:rgba(255,253,249,.94);border-bottom-color:rgba(10,35,64,.09);box-shadow:0 8px 30px rgba(12,35,61,.06)}.header-inner{min-height:84px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:12px}.brand img{border-radius:13px;box-shadow:0 6px 18px rgba(12,35,61,.14)}.brand span{display:flex;flex-direction:column;line-height:1.15}.brand strong{font-size:1.15rem;letter-spacing:.02em}.brand small{margin-top:5px;color:var(--muted);font-size:.67rem;letter-spacing:.04em}.main-nav{display:flex;align-items:center;gap:28px;font-weight:650}.main-nav>a:not(.button){position:relative}.main-nav>a[aria-current=page]:not(.button)::after{content:"";position:absolute;height:2px;left:0;right:0;bottom:-9px;background:var(--copper)}.language{padding:5px 9px;border:1px solid var(--line);border-radius:8px;font-size:.8rem}.menu-button{display:none;border:0;background:transparent;padding:8px}.menu-button span:not(.sr-only){display:block;width:25px;height:2px;margin:5px;background:var(--ink)}
.hero{position:relative;min-height:820px;display:flex;align-items:center;overflow:hidden;padding:140px 0 70px;background:var(--ivory)}.hero-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.38}.hero-wash{position:absolute;inset:0;background:linear-gradient(90deg,rgba(255,250,242,.98) 0%,rgba(255,250,242,.86) 44%,rgba(255,250,242,.3) 78%,rgba(255,250,242,.12)),linear-gradient(0deg,var(--ivory),transparent 25%)}.hero-grid{position:relative;display:grid;grid-template-columns:1.12fr .88fr;align-items:center;gap:50px}.hero h1,.page-hero h1,.thanks h1{margin:.3em 0 .35em;font-family:Georgia,"Times New Roman",serif;font-weight:500;letter-spacing:-.045em;line-height:1.01}.hero h1{font-size:clamp(3.2rem,6.4vw,6.1rem);max-width:830px}.hero-copy>p{max-width:700px;font-size:clamp(1.05rem,1.8vw,1.3rem);color:#344a5e}.button-row{display:flex;gap:13px;flex-wrap:wrap;margin:30px 0}.trust-list{display:flex;gap:28px;flex-wrap:wrap;margin:30px 0 0;padding:0;list-style:none;color:var(--muted);font-size:.88rem;font-weight:650}.trust-list li::before{content:"";display:inline-block;width:7px;height:7px;margin:0 9px 1px 0;background:var(--teal);border-radius:50%}.hero-mark{display:flex;justify-content:flex-end}.hero-mark img{width:min(500px,42vw);border-radius:25%;filter:drop-shadow(0 40px 45px rgba(10,35,64,.22));animation:float 7s ease-in-out infinite}@keyframes float{0%,100%{transform:translateY(0) rotate(-1deg)}50%{transform:translateY(-16px) rotate(1deg)}}
.section{padding:110px 0}.section-heading{max-width:780px;margin-bottom:52px}.section-heading h2,.infra-copy h2,.cta-card h2,.contact-aside h2{font-family:Georgia,"Times New Roman",serif;font-size:clamp(2.3rem,4vw,4.2rem);font-weight:500;line-height:1.08;letter-spacing:-.035em;margin:.25em 0}.section-heading>p,.section-heading.split>p{color:var(--muted);font-size:1.08rem}.section-heading.split{max-width:none;display:grid;grid-template-columns:1.2fr .8fr;gap:70px;align-items:end}.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.service-card{position:relative;min-height:310px;padding:38px;border:1px solid var(--line);border-radius:var(--radius);background:rgba(255,255,255,.62);box-shadow:0 12px 40px rgba(12,35,61,.05)}.service-card.featured{background:linear-gradient(145deg,#0e3456,#006878);color:white;border-color:transparent;transform:translateY(-18px);box-shadow:var(--shadow)}.service-number{font-family:Georgia,serif;color:var(--copper);font-size:1.4rem}.service-card h3{font-size:1.65rem;margin:55px 0 12px}.service-card p{margin:0;color:var(--muted)}.service-card.featured p{color:#d4e4e8}.center-link{text-align:center;margin-top:40px}.projects-section{background:var(--paper)}.project-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.project-card{overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:var(--ivory);box-shadow:0 15px 50px rgba(12,35,61,.07);transition:transform .3s var(--ease),box-shadow .3s}.project-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}.project-shot{aspect-ratio:16/10;overflow:hidden;background:#e8eef0}.project-shot img{width:100%;height:100%;object-fit:cover;object-position:top}.project-copy{padding:30px}.project-copy h3{font-size:1.55rem;margin:7px 0}.project-copy p{color:var(--muted);margin:0 0 20px}.infrastructure{background:var(--ink);color:white}.infrastructure.light{background:var(--cream);color:var(--ink)}.infra-grid{display:grid;grid-template-columns:1fr 1fr;gap:90px;align-items:center}.infra-copy p{color:#d0dce4;max-width:600px;margin-bottom:28px}.infra-list{border-top:1px solid rgba(255,255,255,.2)}.infra-list div{display:flex;justify-content:space-between;gap:30px;padding:25px 0;border-bottom:1px solid rgba(255,255,255,.2)}.infra-list strong{color:var(--copper-light)}.infra-list span{max-width:340px;color:#d0dce4;text-align:right}.cta-section{background:var(--paper)}.cta-card{display:flex;align-items:center;justify-content:space-between;gap:40px;padding:55px 65px;border:1px solid var(--line);border-radius:32px;background:linear-gradient(135deg,var(--ivory),var(--cream));box-shadow:var(--shadow)}.cta-card h2{font-size:clamp(2.1rem,3.7vw,3.7rem);margin-bottom:0}
.page-hero{padding:190px 0 95px;background:radial-gradient(circle at 85% 20%,rgba(0,122,134,.13),transparent 35%),linear-gradient(140deg,var(--ivory),var(--cream))}.page-hero h1{font-size:clamp(3.2rem,6vw,5.8rem)}.page-hero p{font-size:1.2rem;color:var(--muted);max-width:760px}.detail-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.detail-card{padding:38px;border:1px solid var(--line);border-radius:var(--radius);background:var(--paper)}.detail-card>span{color:var(--copper);font-family:Georgia,serif;font-size:1.5rem}.detail-card h2{font-family:Georgia,serif;font-weight:500;font-size:2rem;line-height:1.15}.detail-card p,.detail-card li{color:var(--muted)}.detail-card ul{padding-left:20px}.capability-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.capability-grid article{padding:30px;border:1px solid rgba(10,35,64,.12);background:rgba(255,255,255,.55);border-radius:20px}.capability-grid h3{margin-top:0}.capability-grid p{color:var(--muted);margin-bottom:0}.project-list{display:grid;gap:35px}.project-card.wide{display:grid;grid-template-columns:1.2fr .8fr}.project-card.wide .project-shot{aspect-ratio:16/9}.project-card.wide .project-copy{padding:45px;align-self:center}.scanner-card{background:linear-gradient(135deg,#f5eee4,#fff)}.scanner-visual{min-height:360px;display:flex;align-items:center;justify-content:center;gap:30px;background:radial-gradient(circle,rgba(0,122,134,.16),transparent 65%)}.scanner-visual>img{width:160px}.scanner-visual>div{display:grid;gap:14px}.scanner-visual span{display:block;width:130px;height:16px;border-radius:6px;background:rgba(10,35,64,.14)}.scanner-visual span:nth-child(2){width:100px;background:rgba(184,100,45,.35)}.anchor-offset{position:relative;top:-110px}
.contact-section{background:var(--paper)}.contact-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:70px}.contact-aside p{color:var(--muted)}.contact-aside dl{margin-top:40px}.contact-aside dl div{padding:18px 0;border-top:1px solid var(--line)}.contact-aside dt{font-size:.75rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--copper)}.contact-aside dd{margin:5px 0 0}.contact-form{padding:42px;border:1px solid var(--line);border-radius:var(--radius);background:var(--ivory);box-shadow:var(--shadow)}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}.contact-form label{display:block;margin-bottom:20px;font-weight:700}.contact-form label>span{color:var(--copper)}.contact-form input,.contact-form textarea{display:block;width:100%;margin-top:7px;padding:13px 14px;border:1px solid #cfc3b5;border-radius:11px;background:white;color:var(--ink);outline:none}.contact-form input:focus,.contact-form textarea:focus{border-color:var(--teal);box-shadow:0 0 0 3px rgba(0,122,134,.12)}.check{display:grid!important;grid-template-columns:auto 1fr;gap:11px;align-items:start;font-weight:400!important}.check input{width:19px;height:19px;margin:4px 0 0}.check span{color:var(--muted)!important}.check a{text-decoration:underline;color:var(--teal-dark)}.honeypot{position:absolute;left:-9999px}.form-alert{margin-bottom:25px;padding:18px 20px;background:#fff0ec;border-left:4px solid #a73a27;border-radius:8px;color:#7a281d}.form-alert ul{margin-bottom:0}.form-note{color:var(--muted);font-size:.8rem}.thanks{padding:150px 0 70px;min-height:760px;display:flex;align-items:center;background:linear-gradient(135deg,var(--ivory),var(--cream))}.thanks-card{display:grid;grid-template-columns:.85fr 1.15fr;overflow:hidden;border-radius:34px;background:var(--paper);box-shadow:var(--shadow)}.thanks-copy{padding:70px 60px;align-self:center}.thanks h1{font-size:clamp(3.4rem,6vw,6.5rem)}.thanks-copy>p{font-size:1.12rem;color:var(--muted)}.thanks-image img{width:100%;height:100%;min-height:540px;object-fit:cover;object-position:center}.legal-page{padding:170px 0 100px}.legal-copy{max-width:820px}.legal-copy h1{font-family:Georgia,serif;font-size:clamp(3.5rem,6vw,5.5rem);font-weight:500;letter-spacing:-.04em;margin:.2em 0 .8em}.legal-copy h2{margin-top:42px}.legal-copy p{color:#394b5b}.legal-copy a{text-decoration:underline;color:var(--teal-dark)}.legal-notice{padding:20px 24px;border:1px solid #d9c29e;background:#fff5df;border-radius:14px}.legal-notice p{margin-bottom:0}
.site-footer{padding:70px 0 20px;background:#071b2f;color:white}.footer-grid{display:grid;grid-template-columns:1.5fr .6fr .6fr;gap:80px}.footer-brand img{box-shadow:none}.footer-brand small,.site-footer p{color:#aab9c5}.footer-grid>div:not(:first-child){display:flex;flex-direction:column;gap:9px}.footer-grid h2{font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--copper-light)}.copyright{display:flex;justify-content:space-between;gap:20px;margin-top:55px;padding-top:20px;border-top:1px solid rgba(255,255,255,.15);color:#91a3b0;font-size:.8rem}.reveal{opacity:1;transform:none}
@media(max-width:980px){.main-nav{position:absolute;top:74px;left:20px;right:20px;display:none;flex-direction:column;align-items:stretch;gap:0;padding:20px;background:var(--paper);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}.main-nav.open{display:flex}.main-nav a{padding:12px}.menu-button{display:block}.hero{min-height:auto}.hero-grid{grid-template-columns:1fr}.hero-mark{position:absolute;right:-120px;bottom:-30px;opacity:.17}.hero-mark img{width:470px}.hero-copy{position:relative;z-index:2}.service-grid,.detail-grid,.capability-grid{grid-template-columns:1fr 1fr}.service-card.featured{transform:none}.project-grid{grid-template-columns:1fr}.infra-grid,.contact-grid{grid-template-columns:1fr;gap:50px}.thanks-card{grid-template-columns:1fr}.thanks-image{order:-1}.thanks-image img{min-height:360px}.section-heading.split{grid-template-columns:1fr;gap:10px}.project-card.wide{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:40px}.footer-grid>div:first-child{grid-column:1/-1}}
@media(max-width:640px){:root{--container:min(100% - 28px,1180px)}.header-inner{min-height:72px}.brand small{display:none}.hero{padding-top:120px}.hero h1{font-size:3.15rem}.hero-video{opacity:.2}.section{padding:75px 0}.section-heading{margin-bottom:35px}.service-grid,.detail-grid,.capability-grid{grid-template-columns:1fr}.service-card{min-height:auto}.project-copy,.project-card.wide .project-copy{padding:25px}.cta-card{padding:35px 25px;align-items:flex-start;flex-direction:column}.page-hero{padding:135px 0 70px}.page-hero h1{font-size:3.2rem}.form-row{grid-template-columns:1fr}.contact-form{padding:25px}.thanks{padding-top:110px}.thanks-copy{padding:40px 25px}.thanks-image img{min-height:270px}.scanner-visual{min-height:270px}.infra-list div{flex-direction:column;gap:5px}.infra-list span{text-align:left}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}.copyright{flex-direction:column}.trust-list{gap:12px}.section-heading h2,.infra-copy h2,.cta-card h2,.contact-aside h2{font-size:2.55rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.hero-video{display:none}.hero-mark img{animation:none}.reveal{opacity:1;transform:none;transition:none}.button,.project-card{transition:none}}

/* Version 1.1: informationsreichere Startseite und sichtbare Full-HD-Planungsanimation. */
.main-nav{gap:22px}.hero{min-height:720px;padding:125px 0 58px}.hero-video{opacity:.52;filter:saturate(.9) contrast(.96)}.hero-wash{background:linear-gradient(90deg,rgba(255,250,242,.97) 0%,rgba(255,250,242,.88) 37%,rgba(255,250,242,.28) 70%,rgba(255,250,242,.08)),linear-gradient(0deg,var(--ivory),transparent 20%)}.hero-grid{grid-template-columns:1.05fr .95fr;gap:30px}.hero h1{font-size:clamp(3.1rem,5.7vw,5.55rem);max-width:760px}.hero-mark{justify-content:center}.hero-mark img{width:min(365px,29vw);border-radius:24%;filter:drop-shadow(0 28px 38px rgba(10,35,64,.22));box-shadow:0 0 0 14px rgba(255,255,255,.18);backdrop-filter:blur(5px)}.service-grid{row-gap:22px}.service-card.featured{transform:none}.process-section{position:relative;overflow:hidden;background:linear-gradient(135deg,#f4eadc 0%,#fffaf2 58%,#edf6f5 100%)}.process-section::after{content:"";position:absolute;width:520px;height:520px;right:-210px;top:-190px;border:1px solid rgba(0,122,134,.18);border-radius:50%;box-shadow:0 0 0 70px rgba(184,100,45,.04),0 0 0 140px rgba(0,122,134,.03)}.process-layout{position:relative;z-index:1;display:grid;grid-template-columns:.9fr 1.1fr;gap:90px;align-items:start}.process-intro h2{margin:.25em 0;font-family:Georgia,"Times New Roman",serif;font-size:clamp(2.4rem,4.2vw,4.35rem);font-weight:500;line-height:1.06;letter-spacing:-.038em}.process-intro>p{color:var(--muted);font-size:1.08rem}.process-promise{display:flex;flex-direction:column;gap:3px;margin-top:34px;padding:22px 24px;border-left:4px solid var(--copper);border-radius:0 16px 16px 0;background:rgba(255,255,255,.64)}.process-promise span{color:var(--muted)}.process-steps{margin:0;padding:0;list-style:none;border-top:1px solid rgba(10,35,64,.16)}.process-steps li{display:grid;grid-template-columns:62px 1fr;gap:18px;padding:25px 0;border-bottom:1px solid rgba(10,35,64,.16)}.process-steps>li>span{display:flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:15px;background:linear-gradient(145deg,var(--ink),var(--teal-dark));color:white;font-family:Georgia,serif}.process-steps h3{margin:0 0 5px;font-size:1.28rem}.process-steps p{margin:0;color:var(--muted)}
.project-status{display:table;margin:12px 0 4px;padding:6px 10px;border:1px solid rgba(184,100,45,.34);border-radius:999px;background:#fff4e8;color:#8f481e;font-size:.76rem;font-weight:800;letter-spacing:.02em}.project-card.wide .project-copy p{font-size:1.02rem;line-height:1.72}
@media(max-width:1120px){.main-nav{gap:16px}.main-nav .button-small{padding-inline:13px}.brand small{display:none}}
@media(max-width:980px){.hero{min-height:690px}.hero-mark{right:-75px;bottom:10px}.hero-mark img{width:370px}.process-layout{grid-template-columns:1fr;gap:50px}}
@media(max-width:640px){.hero{min-height:auto}.hero-video{opacity:.31}.hero-wash{background:rgba(255,250,242,.78)}.hero-mark img{width:330px}.process-layout{gap:38px}.process-steps li{grid-template-columns:50px 1fr;gap:13px}.process-steps>li>span{width:42px;height:42px}.process-intro h2{font-size:2.55rem}}