/* =========================================================
   ES-VISUALS — Website (Startseite)
   Mobile first. Tokens aus dem ES-Visuals Design System,
   gleiche Logik wie der Instagram-Auftritt (Plansatz).
   Die frühere Startseite (bestandsplan.html) nutzt weiter styles.css.
   ========================================================= */

@font-face{font-family:'Montserrat';font-style:normal;font-weight:400 800;font-display:swap;
  src:url('assets/fonts/montserrat-latin.woff2') format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2190-2193,U+2212,U+2215,U+FEFF,U+FFFD;}
@font-face{font-family:'Montserrat';font-style:normal;font-weight:400 800;font-display:swap;
  src:url('assets/fonts/montserrat-latin-ext.woff2') format('woff2');
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;}

:root{
  --paper:#F5F4F2; --ink:#1C2530; --blue:#3E5C76; --grey:#B0B3B8; --orange:#C17A47; --white:#FFFFFF;
  --blue-700:#33475f; --hair:#d4d6d9; --muted:#5b7089; --ink-muted:#c9d0d8;
  --font:'Montserrat',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --shell:1200px; --gut:20px; --hdr:64px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
@media (min-width:720px){:root{--gut:32px;--hdr:76px}}

*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--hdr) + 12px);-webkit-text-size-adjust:100%}
body{margin:0;background:var(--white);color:var(--blue-700);font-family:var(--font);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
h1,h2,h3,p,ol,ul,dl,dd,figure{margin:0;padding:0}
ol,ul{list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--orange);outline-offset:3px}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:#fff;padding:10px 14px;z-index:100}
.skip:focus{left:8px}
.shell{max-width:var(--shell);margin:0 auto;padding:0 var(--gut)}

/* ---------- Typografie ---------- */
.label{font-size:12px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--blue)}
.h2{font-size:clamp(30px,6.4vw,52px);font-weight:800;line-height:1.06;letter-spacing:-.015em;color:var(--blue);margin-top:14px}
.h3{font-size:20px;font-weight:700;line-height:1.2;color:var(--blue)}
.sub{position:relative;padding-left:38px;margin-top:20px;font-size:17px;font-weight:500;line-height:1.45;color:var(--blue);max-width:640px}
.sub::before{content:"";position:absolute;left:0;top:.72em;width:24px;height:2px;background:var(--orange)}
.sub--s{font-size:15px;margin-top:12px}
.lead{font-size:17px;line-height:1.65;max-width:620px;margin-top:18px}
.num{font-size:44px;font-weight:500;line-height:1;letter-spacing:-.03em;color:var(--grey)}
.kenn{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;border:1.5px solid currentColor;padding:4px 8px;line-height:1.2;white-space:nowrap}
@media (min-width:720px){.sub{font-size:19px}.label{font-size:13px}.num{font-size:56px}.hero__meta{font-size:13px}}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;font-size:15px;font-weight:600;letter-spacing:.02em;text-decoration:none;border:2px solid transparent;border-radius:2px;cursor:pointer;transition:background .15s var(--ease),color .15s var(--ease),border-color .15s var(--ease);white-space:nowrap}
.btn--primary{background:var(--blue);color:#fff}
.btn--primary:hover{background:#28394c}
.btn--ghost{border-color:var(--blue);color:var(--blue);background:transparent}
.btn--ghost:hover{background:var(--blue);color:#fff}
.btn--light{background:#fff;color:var(--ink)}
.btn--light:hover{background:var(--paper)}
.btn--ghost-dark{border-color:#fff;color:#fff}
.btn--ghost-dark:hover{background:#fff;color:var(--ink)}
.btn--sm{min-height:40px;padding:0 16px;font-size:14px}
.btn--block{width:100%}
.btn[disabled]{opacity:.6;cursor:progress}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.actions .btn{flex:1 1 150px;padding:0 14px}
@media (min-width:720px){.actions .btn{flex:0 0 auto;padding:0 22px}}
.br-d{display:none}
@media (min-width:720px){.br-d{display:inline}}

/* ---------- Header ---------- */
.hdr{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid transparent;transition:border-color .2s}
.hdr.is-scrolled{border-bottom-color:var(--hair)}
.hdr__in{display:flex;align-items:center;gap:20px;height:var(--hdr)}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;margin-right:auto}
.brand img{width:36px;height:36px;border:1.5px solid var(--hair)}
.brand__t{display:flex;flex-direction:column;line-height:1.15}
.brand__t b{font-size:15px;font-weight:800;letter-spacing:.04em;text-transform:uppercase;color:var(--blue)}
.brand__t span{display:none;font-size:10px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.nav{display:none}
@media (min-width:720px){.brand__t span{display:block}.brand img{width:40px;height:40px}}
@media (min-width:960px){
  .nav{display:flex;gap:30px}
  .nav a{font-size:14px;font-weight:600;text-decoration:none;color:var(--blue);padding:6px 0;border-bottom:2px solid transparent}
  .nav a:hover{border-bottom-color:var(--orange)}
}

/* ---------- Abschnitte ---------- */
.sec{padding:72px 0}
.sec--paper{background:var(--paper)}
.sec--ink{background:var(--ink);color:#fff}
@media (min-width:960px){.sec{padding:120px 0}}
.head{margin-bottom:40px}
@media (min-width:960px){.head{margin-bottom:56px}}

/* ---------- Hero ---------- */
.hero{padding:28px 0 40px}
.hero__grid{display:grid;gap:32px}
.hero__title{font-size:clamp(30px,8vw,56px);font-weight:800;line-height:1.04;letter-spacing:-.02em;color:var(--blue);margin-top:14px}
.hero__title span{display:block;color:var(--ink)}
.hero .sub{margin-top:22px}
.frame{border:1.5px solid var(--grey);background:var(--paper);overflow:hidden}
.frame img{width:100%;aspect-ratio:4/3;object-fit:cover}
.cap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:4px 16px;margin-top:10px;font-size:11px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.proc{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:36px}
.proc a{display:block;text-decoration:none}
.hero__meta{margin-top:14px;font-size:12px;font-weight:600;color:var(--muted)}
.proc li{border-top:2px solid var(--grey);padding-top:10px;font-size:10px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--blue);hyphens:auto;-webkit-hyphens:auto;overflow-wrap:anywhere}
.proc b{display:block;font-weight:500;color:var(--grey);margin-bottom:2px}
.proc li:first-child{border-top-color:var(--orange)}
.proc li:first-child b{color:var(--orange)}
@media (min-width:960px){
  .hero{padding:56px 0 64px}
  .hero__grid{grid-template-columns:5fr 6fr;align-items:center;gap:56px}
  .proc{gap:16px;margin-top:56px}
  .proc li{font-size:13px;padding-top:14px}
}

/* ---------- Vergleich Bestand / Entwurf ---------- */
.compare{max-width:980px}
.compare__stage{position:relative;border:1.5px solid var(--grey);overflow:hidden;background:var(--paper);touch-action:pan-y}
.compare__stage img{width:100%;aspect-ratio:4/3;object-fit:cover}
.compare__top{position:absolute;inset:0;clip-path:inset(0 0 0 var(--pos))}
.compare__line{position:absolute;top:0;bottom:0;left:var(--pos);width:2px;margin-left:-1px;background:#fff;pointer-events:none}
.compare__line::after{content:"";position:absolute;top:50%;left:50%;width:30px;height:30px;margin:-15px 0 0 -15px;border:2px solid #fff;background:var(--ink)}
.compare__range{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:ew-resize;-webkit-appearance:none;appearance:none}
.compare__range:focus-visible + *{outline:none}
.compare__stage:focus-within .compare__line::after{border-color:var(--orange)}
.tag{position:absolute;bottom:14px;font-size:11px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:#fff;padding:7px 10px;border:2px solid #fff;pointer-events:none}
.tag--old{left:14px;border-left:6px solid var(--grey)}
.tag--new{right:14px;border-left:6px solid var(--orange)}

/* ---------- Nutzen ---------- */
.gain{display:grid;gap:0;margin-top:40px;border-top:1.5px solid var(--grey);max-width:980px}
.gain li{padding:16px 0;border-bottom:1px solid var(--hair);font-size:15px;line-height:1.5}
.gain b{display:block;font-size:16px;font-weight:700;color:var(--blue);margin-bottom:2px}
@media (min-width:720px){.gain{grid-template-columns:1fr 1fr;column-gap:40px}}
@media (min-width:1100px){.gain{grid-template-columns:repeat(4,1fr);max-width:none;border-top:0}.gain li{border-bottom:0;border-top:4px solid var(--blue);padding-top:18px}}

/* ---------- CTA-Zeile ---------- */
.cta{display:grid;gap:18px;margin-top:64px;padding:28px 24px;background:var(--ink);color:#fff;border-top:4px solid var(--orange)}
.cta p{font-size:15px;color:var(--ink-muted)}
.cta b{display:block;font-size:22px;font-weight:800;color:#fff;margin-bottom:4px}
.cta .btn{justify-self:start;background:#fff;color:var(--ink)}
.cta .btn:hover{background:var(--paper)}
@media (min-width:960px){.cta{grid-template-columns:1fr auto;align-items:center;margin-top:104px;padding:36px 40px}}

/* ---------- Leistungen ---------- */
.svc{display:grid;gap:0;border-top:1.5px solid var(--grey)}
.svc__item{padding:28px 0 32px;border-bottom:1.5px solid var(--grey)}
.svc__item .h3{margin-top:14px;font-size:24px}
.list{margin-top:18px;display:grid;gap:0}
.list li{font-size:15px;padding:9px 0;border-top:1px solid var(--hair)}
.note{margin-top:32px;display:grid;gap:14px;font-size:14px;line-height:1.6;max-width:820px}
.note b{color:var(--blue)}
@media (min-width:960px){
  .svc{grid-template-columns:repeat(3,1fr);gap:40px;border-top:0}
  .svc__item{border-top:4px solid var(--blue);border-bottom:0;padding-top:24px}
  .note{grid-template-columns:1fr 1fr;gap:40px;max-width:none;margin-top:56px;padding-top:24px;border-top:1px solid var(--hair)}
}

/* ---------- Projekte ---------- */
.proj{margin-top:56px}
.proj:first-of-type{margin-top:0}
.proj__head{display:grid;gap:8px;margin-bottom:16px}
.proj__head .kenn{justify-self:start;color:var(--blue)}
.proj__head .h3{font-size:26px;font-weight:800;letter-spacing:-.01em}
.proj__head p{font-size:14px;color:var(--muted)}
.proj__head .proj__svc{font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--orange)}
.kenn--projekt{background:var(--orange);border-color:var(--orange);color:#fff!important}
.proj--kunde .proj__head .h3{font-size:30px}
.proj__main img{transition:opacity .25s var(--ease)}
.proj__main img.is-swapping{opacity:0}
.seq{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:8px;counter-reset:s}
.seq button{display:block;width:100%;padding:0;border:0;background:none;cursor:pointer;text-align:left}
.seq img{width:100%;aspect-ratio:4/3;object-fit:cover;border:1.5px solid var(--grey);opacity:.72;transition:opacity .15s}
.seq button:hover img,.seq button[aria-current="true"] img{opacity:1}
.seq button[aria-current="true"] img{border-color:var(--orange)}
.seq span{display:block;margin-top:6px;font-size:10px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--blue);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.seq li{position:relative}
.seq li + li::before{content:"→";position:absolute;left:-8px;top:calc(50% - 22px);width:8px;text-align:center;font-size:12px;color:var(--grey)}
.seq button[aria-current="true"] span{color:var(--orange)}
@media (min-width:960px){
  .proj{margin-top:104px;display:grid;grid-template-columns:3fr 9fr;gap:0 40px;align-items:start}
  .proj__head{grid-row:span 2;position:sticky;top:calc(var(--hdr) + 32px);padding-top:4px}
  .seq{gap:16px;margin-top:16px}
  .seq li + li::before{left:-16px;width:16px}
  .seq span{font-size:12px}
}

/* ---------- Ablauf ---------- */
.steps{position:relative;display:grid;gap:0;padding-left:28px}
.steps::before{content:"";position:absolute;left:6px;top:8px;bottom:8px;width:2px;background:var(--grey);transform-origin:top;transform:scaleY(var(--draw,1));transition:transform 1.2s var(--ease)}
.steps li{position:relative;padding:0 0 32px}
.steps li::before{content:"";position:absolute;left:-28px;top:10px;width:14px;height:2px;background:var(--grey)}
.steps li:last-child{padding-bottom:0}
.steps li:last-child::before{background:var(--orange);height:3px}
.steps .num{font-size:28px;display:block}
.steps .h3{margin-top:4px}
.steps p{margin-top:6px;font-size:15px;max-width:420px}
.steps__foot{margin-top:40px;font-size:14px;color:var(--muted);max-width:620px}
@media (min-width:960px){
  .steps{grid-template-columns:repeat(4,1fr);gap:32px;padding:28px 0 0}
  .steps::before{left:0;right:0;top:0;bottom:auto;width:auto;height:2px;transform-origin:left;transform:scaleX(var(--draw,1))}
  .steps li{padding:0}
  .steps li::before{left:0;top:-34px;width:2px;height:14px}
  .steps li:last-child::before{width:3px;height:14px}
  .steps .num{font-size:44px}
}

/* ---------- Projektarten ---------- */
.fit{margin-top:64px;padding-top:28px;border-top:1.5px solid var(--grey)}
.fit dl{display:grid;gap:20px;margin:18px 0 0}
.fit dt{font-size:16px;font-weight:700;color:var(--blue)}
.fit dd{margin:4px 0 0;font-size:15px;max-width:420px}
.fit > p{margin-top:24px;font-size:14px;color:var(--muted);max-width:620px}
@media (min-width:960px){.fit{margin-top:96px}.fit dl{grid-template-columns:repeat(3,1fr);gap:40px}}

/* ---------- Über mich ---------- */
.about{display:grid;gap:40px}
.plankopf{border:1.5px solid var(--grey);background:#fff;align-self:start}
.plankopf div{display:grid;grid-template-columns:110px 1fr;gap:12px;padding:14px 16px;border-top:1px solid var(--hair)}
.plankopf div:first-child{border-top:0}
.plankopf dt{font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);padding-top:2px}
.plankopf dd{font-size:15px;font-weight:500;color:var(--blue)}
.plankopf div:first-child dd{font-weight:700}
.about__photo img{width:100%;aspect-ratio:3/4;object-fit:cover;border:1.5px solid var(--grey)}
@media (min-width:960px){.about{grid-template-columns:7fr 5fr;gap:72px;align-items:end}}

/* ---------- FAQ ---------- */
.faq{border-top:1.5px solid var(--grey);max-width:860px}
.faq details{border-bottom:1px solid var(--hair)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:16px;padding:18px 0;font-size:16px;font-weight:600;color:var(--blue)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-weight:500;font-size:20px;line-height:1;color:var(--orange)}
.faq details[open] summary::after{content:"–"}
.faq p{padding:0 0 20px;font-size:15px;max-width:720px}

/* ---------- Anfrage ---------- */
.sec--ink .label{color:var(--grey)}
.sec--ink .sub{color:#fff}
.ask{display:grid;gap:40px}
.ask__title{font-size:clamp(42px,11.5vw,72px);white-space:nowrap;font-weight:800;line-height:1.02;letter-spacing:-.02em;margin-top:14px}
.ask__title span{color:var(--orange)}
.ask__meta{margin-top:20px;font-size:14px;color:var(--ink-muted)}
.ask__alt{margin-top:36px;padding-top:24px;border-top:1px solid rgba(255,255,255,.16)}
.ask__alt .btn{margin-top:14px}
.ask__contact{margin-top:16px;font-size:14px;color:var(--ink-muted)}
.ask__contact a{text-decoration:none;border-bottom:1px solid rgba(255,255,255,.3)}
.form{display:grid;gap:18px;background:#fff;color:var(--blue-700);padding:24px 20px 28px;border-top:4px solid var(--orange)}
.field{display:grid;gap:7px}
.field label,.field__l{font-size:13px;font-weight:600;color:var(--blue)}
.field__l i,.field label i{font-style:normal;font-weight:500;color:var(--muted)}
.field input[type=text],.field select,.field textarea{width:100%;min-height:48px;padding:12px 14px;border:1.5px solid var(--grey);border-radius:2px;background:#fff;font-size:16px}
.field textarea{resize:vertical;min-height:112px;line-height:1.5}
.field select{appearance:none;-webkit-appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--blue) 50%),linear-gradient(135deg,var(--blue) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;background-size:5px 5px;background-repeat:no-repeat;padding-right:40px}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--blue);box-shadow:inset 0 0 0 1px var(--blue)}
.field.is-invalid input,.field.is-invalid select,.field.is-invalid textarea{border-color:var(--orange)}
.drop{position:relative;display:grid;gap:2px;padding:16px;border:1.5px dashed var(--grey);cursor:pointer;background:var(--paper)}
.drop:hover,.drop:focus-within{border-color:var(--blue)}
.drop input{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%}
.drop__t{font-size:15px;font-weight:600;color:var(--blue)}
.drop__s{font-size:13px;color:var(--muted)}
.files{display:grid;gap:4px}
.files li{display:flex;justify-content:space-between;gap:12px;font-size:13px;padding:6px 0;border-bottom:1px solid var(--hair)}
.files li span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.files li i{font-style:normal;color:var(--muted);flex:none}
.form__hint{font-size:12px;line-height:1.5;color:var(--muted)}
.form__hint.is-error{color:var(--orange);font-weight:600}
.form__hint a{color:var(--blue)}
.done{padding:32px 0 0}
.done .h2{color:#fff}
@media (min-width:960px){
  .ask{grid-template-columns:5fr 6fr;gap:72px;align-items:start}
  .ask__intro{position:sticky;top:calc(var(--hdr) + 32px)}
  .form{padding:36px 36px 40px}
  .done{grid-column:2}
}

/* ---------- Footer ---------- */
.ftr{background:var(--ink);color:var(--ink-muted);padding:40px 0 calc(32px + 72px);border-top:1px solid rgba(255,255,255,.12);font-size:13px}
.ftr .brand__t b{color:#fff}
.ftr .brand__t span{color:var(--grey)}
.ftr .brand img{border-color:transparent}
.ftr__top{display:grid;gap:24px;padding-bottom:24px;border-bottom:1px solid rgba(255,255,255,.12)}
.ftr__nav{display:flex;flex-wrap:wrap;gap:10px 22px}
.ftr__nav a{text-decoration:none;color:#fff}
.ftr__nav a:hover{color:var(--orange)}
.ftr__bot{display:grid;gap:6px;padding-top:20px;font-size:12px}
@media (min-width:960px){.ftr{padding-bottom:40px}.ftr__top{grid-template-columns:auto 1fr;align-items:center}.ftr__nav{justify-content:flex-end}.ftr__bot{grid-template-columns:1fr auto}}

/* ---------- Mobile Leiste ---------- */
.dock{position:fixed;left:0;right:0;bottom:0;z-index:60;display:grid;grid-template-columns:1fr auto;gap:8px;padding:10px var(--gut) calc(10px + env(safe-area-inset-bottom));background:rgba(255,255,255,.97);border-top:1px solid var(--hair);transform:translateY(110%);transition:transform .25s var(--ease)}
.dock.is-on{transform:none}
@media (min-width:960px){.dock{display:none}}

/* ---------- Bewegung: nur dezentes Einblenden ---------- */
html.js [data-reveal]{opacity:0;transform:translateY(14px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
html.js [data-reveal].is-in{opacity:1;transform:none}
html.js .steps{--draw:0}
html.js .steps.is-in{--draw:1}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  html.js [data-reveal]{opacity:1;transform:none;transition:none}
  html.js .steps{--draw:1}
  .steps::before{transition:none}
}