/* Technisches Büro Pfeiffer – Seitenlayout
   Statische Umsetzung des OnePager-Entwurfs (OnePager.dc.html) auf Basis des PfeifferTech Design Systems. */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; animation: none !important; } }
body { margin: 0; background: var(--pt-bg); font-family: var(--pt-font-body); color: var(--pt-fg); }
a { color: var(--pt-warm); text-decoration: none; }
a:hover { color: var(--pt-warm-deep); }
img { display: block; max-width: 100%; }
:focus-visible { outline: 2px solid var(--pt-water-deep); outline-offset: 2px; }
[hidden] { display: none !important; }
.sr-label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.skip-link { position: absolute; left: 16px; top: -60px; z-index: 100; background: var(--pt-ink); color: #fff; padding: 10px 16px; border-radius: var(--pt-r-8); font-family: var(--pt-font-display); font-weight: 600; }
.skip-link:focus { top: 12px; color: #fff; }

.wrap { max-width: 1200px; margin: 0 auto; padding-left: 32px; padding-right: 32px; }
.section { padding-top: 96px; scroll-margin-top: 80px; }
.split { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr)); gap: 48px; align-items: start; }
.prose { max-width: 64ch; }
.stack { display: flex; flex-direction: column; gap: 24px; }

/* ---------- Header ---------- */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,0.88); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); border-bottom: 1px solid var(--pt-border); }
.site-header__inner { display: flex; align-items: center; gap: 24px; padding-top: 14px; padding-bottom: 14px; }
.site-header__logo { flex-shrink: 0; }
.site-header__logo img { height: 46px; width: auto; }
.site-nav { display: flex; align-items: center; gap: 4px; margin-left: auto; flex-wrap: wrap; }
.site-nav__link { font-family: var(--pt-font-display); font-weight: 600; font-size: 15px; padding: 10px 12px; border-radius: var(--pt-r-8); color: var(--pt-fg); }
.site-nav__link:hover { background: var(--pt-slate-100); color: var(--pt-fg); }
.site-nav__cta { margin-left: 12px; }
.nav-toggle { display: none; margin-left: auto; background: none; border: 1px solid var(--pt-border-strong); border-radius: var(--pt-r-8); min-height: 44px; padding: 0 14px; font-family: var(--pt-font-display); font-weight: 600; font-size: 15px; color: var(--pt-fg); cursor: pointer; }

@media (max-width: 900px) {
  .js .nav-toggle { display: inline-flex; align-items: center; }
  .js .site-header__inner { flex-wrap: wrap; }
  .js .site-nav { display: none; width: 100%; flex-direction: column; align-items: stretch; margin-left: 0; padding-bottom: 8px; }
  .js .site-nav.is-open { display: flex; }
  .js .site-nav__cta { margin: 8px 0 0; }
  .js .site-nav__cta .btn { width: 100%; justify-content: center; }
}

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; gap: 8px; font-family: var(--pt-font-display); font-weight: 600; font-size: 15px; line-height: 1; padding: 13px 22px; border-radius: var(--pt-r-8); border: 1px solid transparent; cursor: pointer; text-decoration: none; min-height: 44px; transition: background var(--pt-dur-fast) var(--pt-ease-out), border-color var(--pt-dur-fast) var(--pt-ease-out), transform 90ms var(--pt-ease-out); }
.btn:active { transform: translateY(1px); }
.btn--sm { padding: 9px 16px; font-size: 14px; }
.btn--lg { padding: 16px 28px; font-size: 17px; }
.btn--primary { background: var(--pt-warm); color: #fff; }
.btn--primary:hover { background: var(--pt-warm-deep); color: #fff; }
.btn--secondary { background: var(--pt-paper); color: var(--pt-fg); border-color: var(--pt-border-strong); }
.btn--secondary:hover { background: var(--pt-slate-100); color: var(--pt-fg); }
.btn--on-dark { background: rgba(255,255,255,0.06); color: #fff; border-color: rgba(255,255,255,0.22); }
.btn--on-dark:hover { background: rgba(255,255,255,0.14); color: #fff; }
.btn[disabled] { opacity: 0.5; cursor: progress; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }

/* ---------- Hero ---------- */
.hero { background: linear-gradient(90deg, rgba(14,17,22,0.82) 0%, rgba(14,17,22,0.55) 45%, rgba(14,17,22,0) 75%), var(--pt-ink) url("../assets/3flow-dark-bottom.jpg") center 28% / cover no-repeat; min-height: 640px; display: flex; align-items: flex-start; }
.hero .wrap { width: 100%; padding-top: 120px; padding-bottom: 168px; }
.hero__inner { max-width: 800px; }
.hero h1 { font-size: clamp(2.5rem, 5vw + 1rem, 5rem); line-height: 1.08; margin: 0 0 24px; }
.hero__sub { font-family: var(--pt-font-display); font-weight: 600; font-size: clamp(1.25rem, 1vw + 1rem, 1.75rem); color: #F4F5F7; margin: 0 0 36px; letter-spacing: -0.01em; }
@media (max-width: 760px) {
  .hero { background: linear-gradient(180deg, rgba(14,17,22,0.78), rgba(14,17,22,0.62)), var(--pt-ink) url("../assets/3flow-dark-bottom.jpg") center 28% / cover no-repeat; min-height: 0; }
  .hero .wrap { padding-top: 72px; padding-bottom: 96px; }
}

/* ---------- Service cards ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr)); gap: 32px; }
.card { position: relative; display: flex; flex-direction: column; background: var(--pt-surface); border: 1px solid var(--pt-border); border-radius: var(--pt-r-12); padding: 28px 26px 26px; box-shadow: var(--pt-shadow-1); overflow: hidden; text-decoration: none; transition: transform var(--pt-dur-base) var(--pt-ease-out), box-shadow var(--pt-dur-base) var(--pt-ease-out); }
.card:hover { transform: translateY(-2px); box-shadow: var(--pt-shadow-2); }
.card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: var(--strip); }
.card--heat { --strip: var(--pt-warm); --num: var(--pt-warm); }
.card--electricity { --strip: var(--pt-sun); --num: #8A7500; }
.card--water { --strip: var(--pt-water); --num: var(--pt-water-deep); }
.card__meta { font-family: var(--pt-font-display); font-weight: 700; font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--pt-fg-3); margin-top: 6px; }
.card__meta b { color: var(--num); font-weight: 700; }
.card__title { font-family: var(--pt-font-display); font-weight: 700; font-size: 26px; line-height: 1.15; color: var(--pt-ink); margin: 14px 0 12px; letter-spacing: -0.01em; }
.card__body { font-size: 15px; line-height: 1.6; color: var(--pt-fg-2); margin: 0 0 24px; flex: 1; }
.card__link { font-family: var(--pt-font-display); font-weight: 600; font-size: 14px; color: var(--pt-warm); }

/* ---------- Lists, panels ---------- */
.dash-list { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 12px; }
.dash-list li { display: grid; grid-template-columns: 18px 1fr; gap: 12px; line-height: 1.6; color: var(--pt-fg-2); }
.dash-list li::before { content: "—"; color: var(--pt-warm); font-weight: 700; }
.dash-list--tight { gap: 10px; margin-bottom: 24px; }
.panel { background: var(--pt-surface-2); border: 1px solid var(--pt-border); border-radius: var(--pt-r-12); padding: 28px; }
.panel p:last-child { margin-bottom: 0; }
.panel__title { font-family: var(--pt-font-display); font-weight: 600; font-size: 17px; color: var(--pt-fg); }
.media { border-radius: var(--pt-r-12); overflow: hidden; border: 1px solid var(--pt-border); box-shadow: var(--pt-shadow-1); }
.media img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; }
h4.list-title { margin: 28px 0 16px; }

/* ---------- Software ---------- */
.feature { background: var(--pt-surface-2); border: 1px solid var(--pt-border); border-radius: var(--pt-r-12); padding: 48px; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr)); gap: 40px; align-items: start; }
.feature__shot { grid-column: 1 / -1; border-radius: var(--pt-r-12); overflow: hidden; border: 1px solid var(--pt-border); box-shadow: var(--pt-shadow-2); background: var(--pt-paper); }
.feature__shot img { width: 100%; height: auto; }
@media (max-width: 600px) { .feature { padding: 28px 20px; } }

/* ---------- Stats & Timeline ---------- */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); border-left: 1px solid var(--pt-border); margin-top: 40px; }
.stats > div { padding: 18px 22px; border-right: 1px solid var(--pt-border); border-top: 1px solid var(--pt-border); border-bottom: 1px solid var(--pt-border); }
.stats__value { font-family: var(--pt-font-display); font-weight: 700; font-size: 44px; line-height: 1; color: var(--pt-warm); letter-spacing: -0.02em; font-variant-numeric: tabular-nums lining-nums; }
.stats__label { font-family: var(--pt-font-display); font-weight: 600; font-size: 13px; color: var(--pt-fg-2); margin-top: 10px; line-height: 1.3; }
@media (max-width: 760px) { .stats { grid-template-columns: 1fr; } .stats > div + div { border-top: 0; } }

.timeline { margin: 0; padding: 0 0 0 24px; list-style: none; border-left: 2px solid var(--pt-warm); display: flex; flex-direction: column; gap: 22px; }
.timeline li { display: grid; grid-template-columns: 70px 1fr; gap: 16px; align-items: baseline; }
.timeline__year { font-family: var(--pt-font-display); font-weight: 700; font-size: 22px; color: var(--pt-warm); letter-spacing: -0.01em; font-variant-numeric: tabular-nums lining-nums; }
.timeline__body { font-size: 15px; line-height: 1.55; color: var(--pt-fg-2); }
.timeline__body strong { color: var(--pt-fg); font-weight: 600; }

/* ---------- Referenzen ---------- */
.band { background: var(--pt-surface-2); border-top: 1px solid var(--pt-border); margin-top: 96px; scroll-margin-top: 80px; }
.band .wrap { padding-top: 80px; padding-bottom: 80px; }
.refs { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 210px), 1fr)); gap: 20px; margin: 0; padding: 0; list-style: none; }
.ref { background: var(--pt-paper); border: 1px solid var(--pt-border); border-radius: var(--pt-r-12); padding: 12px 12px 16px; min-height: 96px; display: flex; flex-direction: column; justify-content: flex-end; gap: 12px; font-family: var(--pt-font-display); font-weight: 600; font-size: 15px; line-height: 1.3; color: var(--pt-fg); }
.ref img { width: 100%; height: auto; aspect-ratio: 36 / 25; object-fit: cover; border-radius: var(--pt-r-8); }
.ref--logo img { object-fit: contain; padding: 18% 22%; background: var(--pt-surface-2); }
.ref--more { padding: 20px; }
.ref--more { background: transparent; border-style: dashed; border-color: var(--pt-border-strong); color: var(--pt-fg-3); }

/* ---------- Team ---------- */
.team { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 28px; margin: 0; padding: 0; list-style: none; }
.team li { display: flex; flex-direction: column; gap: 14px; }
.team__photo { border-radius: var(--pt-r-12); overflow: hidden; border: 1px solid var(--pt-border); background: var(--pt-slate-100); aspect-ratio: 4 / 5; }
.team__photo img { width: 100%; height: 100%; object-fit: cover; }
.team h4 { margin: 0 0 6px; font-size: var(--pt-fs-20); }
.team p { margin: 8px 0 0; }
.team a { font-size: var(--pt-fs-14); }

.career { margin-top: 48px; background: var(--pt-surface-2); border: 1px solid var(--pt-border); border-radius: var(--pt-r-12); padding: 36px; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); gap: 32px; align-items: center; }
.career__photo { border-radius: var(--pt-r-12); overflow: hidden; border: 1px solid var(--pt-border); box-shadow: var(--pt-shadow-1); margin: 12px 0 20px; }
.career__photo img { width: 100%; height: 200px; object-fit: cover; }
.career__job { background: var(--pt-paper); border: 1px solid var(--pt-border); border-radius: var(--pt-r-12); padding: 32px; }
.career__job h4 { font-size: var(--pt-fs-18); margin: 0 0 12px; }
.badges { display: flex; flex-wrap: wrap; gap: 8px; }
.badge { display: inline-flex; align-items: center; font-family: var(--pt-font-display); font-weight: 600; font-size: 12px; padding: 5px 10px; border-radius: var(--pt-r-pill); letter-spacing: 0.02em; background: var(--pt-slate-100); color: var(--pt-fg-2); }
@media (max-width: 600px) { .career, .career__job { padding: 24px 20px; } }

/* ---------- Kontakt ---------- */
.contact { padding-bottom: 96px; gap: 56px; }
.contact__facts { display: flex; flex-direction: column; gap: 24px; border-top: 1px solid var(--pt-border); padding-top: 28px; }
.contact__facts p { margin: 8px 0 0; }

.map { margin-top: 32px; border: 1px solid var(--pt-border); border-radius: var(--pt-r-12); overflow: hidden; }
.map__head { padding: 16px 20px; border-bottom: 1px solid var(--pt-border); background: var(--pt-surface-2); }
.map__frame { width: 100%; height: 280px; border: 0; display: block; }
.map__consent { min-height: 280px; padding: 28px 24px; display: flex; flex-direction: column; justify-content: center; gap: 14px; background: repeating-linear-gradient(135deg, var(--pt-surface) 0 14px, var(--pt-slate-100) 14px 15px); }
.map__consent p { margin: 0; font-size: var(--pt-fs-14); line-height: 1.6; color: var(--pt-fg-2); max-width: 52ch; }
.map__remember { display: flex; gap: 10px; align-items: flex-start; font-size: var(--pt-fs-14); color: var(--pt-fg-2); line-height: 1.5; }
.map__remember input { width: 18px; height: 18px; margin: 1px 0 0; accent-color: var(--pt-warm); flex-shrink: 0; }
.map__external { font-size: var(--pt-fs-14); }
.no-js .map__load, .no-js .map__remember { display: none; }

.form-card { background: var(--pt-surface); border: 1px solid var(--pt-border); border-radius: var(--pt-r-12); box-shadow: var(--pt-shadow-2); padding: 36px; }
@media (max-width: 600px) { .form-card { padding: 24px 20px; } }
.field { margin-bottom: 18px; }
.field label { display: block; font-family: var(--pt-font-display); font-weight: 600; font-size: 13px; color: var(--pt-fg-2); margin-bottom: 6px; letter-spacing: 0.01em; }
.field label .opt { font-weight: 500; color: var(--pt-fg-3); }
.field input, .field select, .field textarea { font-family: var(--pt-font-body); font-size: 16px; width: 100%; padding: 11px 14px; border-radius: var(--pt-r-8); border: 1px solid var(--pt-border-strong); background: var(--pt-surface); color: var(--pt-fg); min-height: 44px; }
.field textarea { resize: vertical; min-height: 140px; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--pt-water-deep); box-shadow: 0 0 0 3px var(--pt-water-soft); }
.field input[aria-invalid="true"], .field textarea[aria-invalid="true"] { border-color: var(--pt-warm); }
.field-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr)); gap: 0 16px; }
.hp { position: absolute !important; left: -10000px !important; width: 1px; height: 1px; overflow: hidden; }
.form-note { font-size: var(--pt-fs-12); color: var(--pt-fg-3); line-height: 1.6; margin: 0 0 24px; }
.form-status { margin: 0 0 20px; padding: 14px 16px; border-radius: var(--pt-r-8); font-size: var(--pt-fs-14); line-height: 1.5; }
.form-status:empty { display: none; }
.form-status--ok { background: #E6F4EC; color: #1E5E3A; border: 1px solid #B7DEC8; }
.form-status--error { background: var(--pt-warm-soft); color: var(--pt-warm-deep); border: 1px solid #F1B5AE; }

/* ---------- Kontaktband & Footer ---------- */
.reach { background: var(--pt-ink); color: #F4F5F7; }
.reach .wrap { padding-top: 80px; padding-bottom: 80px; display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 40px; }
.reach h2 { color: #fff; margin: 0 0 12px; font-size: var(--pt-fs-32); }
.reach .pt-eyebrow { color: var(--pt-water); }
.reach p { color: #C2C8D0; margin: 12px 0 0; line-height: 1.7; }
.reach a { color: #F4F5F7; border-bottom: 1px solid rgba(255,255,255,0.3); }
.reach a:hover { color: #fff; border-bottom-color: #fff; }

.site-footer { background: #0A0C10; border-top: 1px solid #232838; color: #8A93A0; }
.site-footer .wrap { padding-top: 48px; padding-bottom: 48px; display: flex; flex-wrap: wrap; gap: 32px; align-items: flex-start; justify-content: space-between; }
.site-footer .pt-eyebrow { color: #8A93A0; }
.site-footer__links { display: flex; flex-wrap: wrap; gap: 8px 24px; margin-top: 16px; }
.site-footer__links a, .site-footer__links button { color: #C2C8D0; font-size: var(--pt-fs-14); font-family: var(--pt-font-body); background: none; border: 0; padding: 0; cursor: pointer; }
.site-footer__links a:hover, .site-footer__links button:hover { color: #fff; }
.site-footer small { color: #6B7480; }

/* ---------- Datenschutz-Einstellungen (Dialog) ---------- */
.consent-dialog { border: 1px solid var(--pt-border); border-radius: var(--pt-r-12); box-shadow: var(--pt-shadow-3); padding: 0; width: min(560px, calc(100vw - 32px)); color: var(--pt-fg); }
.consent-dialog::backdrop { background: rgba(14,17,22,0.55); }
.consent-dialog__body { padding: 28px; }
.consent-dialog h2 { font-size: var(--pt-fs-24); margin: 0 0 12px; }
.consent-dialog p { font-size: var(--pt-fs-14); line-height: 1.6; color: var(--pt-fg-2); }
.consent-item { border: 1px solid var(--pt-border); border-radius: var(--pt-r-8); padding: 16px; margin: 0 0 12px; }
.consent-item__head { display: flex; justify-content: space-between; align-items: center; gap: 16px; font-family: var(--pt-font-display); font-weight: 700; font-size: 16px; }
.consent-item p { margin: 8px 0 0; }
.consent-item__fixed { font-family: var(--pt-font-body); font-weight: 500; font-size: 13px; color: var(--pt-fg-3); }
.switch { position: relative; display: inline-flex; align-items: center; gap: 10px; cursor: pointer; font-family: var(--pt-font-body); font-weight: 500; font-size: 13px; color: var(--pt-fg-2); }
.switch input { position: absolute; opacity: 0; width: 44px; height: 24px; margin: 0; cursor: pointer; }
.switch__track { width: 44px; height: 24px; border-radius: 999px; background: var(--pt-slate-300); position: relative; transition: background var(--pt-dur-fast) var(--pt-ease-out); flex-shrink: 0; }
.switch__track::after { content: ""; position: absolute; top: 3px; left: 3px; width: 18px; height: 18px; border-radius: 50%; background: #fff; box-shadow: var(--pt-shadow-1); transition: transform var(--pt-dur-fast) var(--pt-ease-out); }
.switch input:checked + .switch__track { background: var(--pt-warm); }
.switch input:checked + .switch__track::after { transform: translateX(20px); }
.switch input:focus-visible + .switch__track { outline: 2px solid var(--pt-water-deep); outline-offset: 2px; }
.consent-dialog__actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: flex-end; padding: 16px 28px 24px; }

/* ---------- Rechtstexte ---------- */
.page-head { background: var(--pt-ink); }
.page-head .wrap { padding-top: 72px; padding-bottom: 72px; }
.page-head .pt-eyebrow { color: var(--pt-water); }
.page-head h1 { color: #fff; margin: 14px 0 0; }
.legal { padding-top: 64px; padding-bottom: 96px; }
.legal__body { max-width: 72ch; }
.legal__body h2 { font-size: var(--pt-fs-28); margin: 48px 0 16px; }
.legal__body h2:first-child { margin-top: 0; }
.legal__body h3 { font-size: var(--pt-fs-20); margin: 32px 0 10px; }
.legal__body ul { padding-left: 1.2em; margin: 0 0 16px; }
.legal__body li { line-height: 1.7; margin-bottom: 6px; }
.legal__body address { font-style: normal; line-height: 1.7; margin: 0 0 16px; }
.legal__body .stand { color: var(--pt-fg-3); font-size: var(--pt-fs-14); margin-top: 48px; }
.legal__toc { background: var(--pt-surface-2); border: 1px solid var(--pt-border); border-radius: var(--pt-r-12); padding: 20px 24px; margin: 0 0 48px; }
.legal__toc ol { margin: 10px 0 0; padding-left: 1.2em; columns: 2 260px; }
.legal__toc li { margin-bottom: 4px; font-size: var(--pt-fs-14); }
.callout { border-left: 3px solid var(--pt-warm); background: var(--pt-surface-2); padding: 16px 20px; border-radius: 0 var(--pt-r-8) var(--pt-r-8) 0; margin: 0 0 16px; }
.callout p:last-child { margin-bottom: 0; }

h1, h2, h3, h4, .card__title { overflow-wrap: break-word; }
h3, h4, .card__title { -webkit-hyphens: auto; hyphens: auto; }
.pt-triad-tagline > span { white-space: nowrap; }

@media (max-width: 600px) {
  .wrap { padding-left: 16px; padding-right: 16px; }
  h3 { font-size: var(--pt-fs-24); }
  .card__title { font-size: 22px; }
  .stats__value { font-size: 36px; }
  .section { padding-top: 72px; }
  .site-header__logo img { height: 38px; }
}