/* =====================================================================
   GÜL Metallverarbeitung – whg-wannen.de
   Designsystem & globale Styles
   Premium-Industrie / B2B / technisch / vertrauenswürdig
   ===================================================================== */

/* 0. Schriften (selbst gehostet, DSGVO-konform) -------------------- */
/* Inter & Manrope als Variable Fonts, latin-Subset.
   Keine Verbindung zu Google-Servern – Schriften liegen lokal. */
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("../fonts/inter-variable.woff2") format("woff2");
}
@font-face {
  font-family: "Manrope";
  font-style: normal;
  font-weight: 700 800;
  font-display: swap;
  src: url("../fonts/manrope-variable.woff2") format("woff2");
}

/* 1. Design Tokens ------------------------------------------------- */
:root {
  --c-primary: #1f2933;
  --c-primary-700: #161d24;
  --c-secondary: #2c5282;
  --c-secondary-600: #2a4e7c;
  --c-accent: #e2641b;
  --c-accent-600: #c9560f;
  --c-cta: #cc4e13;        /* CTA-Button: 4.50:1 mit weiss (WCAG AA), hellster konformer Orange */
  --c-cta-hover: #ad4210;  /* CTA-Button Hover/Active: 5.89:1 mit weiss */
  --c-success: #2f855a;
  --c-bg: #ffffff;
  --c-bg-alt: #f5f7fa;
  --c-bg-dark: #1f2933;
  --c-border: #e2e8f0;
  --c-text: #1a202c;
  --c-text-muted: #4a5568;
  --c-text-invert: #f5f7fa;

  --font-head: "Manrope", "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  --fs-h1: clamp(2rem, 4vw + 1rem, 3.25rem);
  --fs-h2: clamp(1.6rem, 2vw + 1rem, 2rem);
  --fs-h3: clamp(1.2rem, 1vw + 0.9rem, 1.5rem);
  --fs-body: 1.0625rem;
  --fs-small: 0.9375rem;

  --s-1: 0.5rem; --s-2: 1rem; --s-3: 1.5rem; --s-4: 2rem;
  --s-5: 3rem; --s-6: 4rem; --s-7: 6rem;

  --container: 1240px;
  --radius: 10px; --radius-sm: 6px;
  --shadow-sm: 0 1px 3px rgba(31,41,51,.08);
  --shadow: 0 6px 24px rgba(31,41,51,.10);
  --shadow-lg: 0 16px 48px rgba(31,41,51,.14);
  --transition: .2s ease;
}

/* 2. Reset & Basis ------------------------------------------------ */
*,*::before,*::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; font-family: var(--font-body); font-size: var(--fs-body);
  line-height: 1.65; color: var(--c-text); background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
}
h1,h2,h3,h4 { font-family: var(--font-head); line-height: 1.2; color: var(--c-primary); margin: 0 0 var(--s-2); font-weight: 700; }
h1 { font-size: var(--fs-h1); letter-spacing: -.02em; }
h2 { font-size: var(--fs-h2); letter-spacing: -.01em; }
h3 { font-size: var(--fs-h3); }
p { margin: 0 0 var(--s-2); }
a { color: var(--c-secondary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--c-accent); }
img { max-width: 100%; height: auto; display: block; }
ul,ol { margin: 0 0 var(--s-2); padding-left: 1.25rem; }
li { margin-bottom: .35rem; }
:focus-visible { outline: 3px solid var(--c-accent-600); outline-offset: 2px; }

/* Skip-Link (WCAG 2.4.1 Bypass Blocks) */
.skip-link { position: absolute; left: 0; top: 0; z-index: 2000; transform: translateY(-120%); background: var(--c-primary); color: #fff; padding: .75rem 1.25rem; border-radius: 0 0 var(--radius-sm) 0; font-weight: 700; text-decoration: none; transition: transform var(--transition); }
.skip-link:focus { transform: translateY(0); color: #fff; outline: 3px solid #fff; outline-offset: -6px; }

/* 3. Layout ------------------------------------------------------- */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--s-3); }
.section { padding-block: var(--s-7); }
.section--tight { padding-block: var(--s-5); }
.section--alt { background: var(--c-bg-alt); }
.section--dark { background: var(--c-bg-dark); color: var(--c-text-invert); }
.section--dark h2, .section--dark h3 { color: #fff; }
.section-head { max-width: 760px; margin-bottom: var(--s-4); }
.section-head--center { margin-inline: auto; text-align: center; }
.eyebrow { display: inline-block; font-size: var(--fs-small); font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--c-accent); margin-bottom: var(--s-1); }
.lead { font-size: 1.15rem; color: var(--c-text-muted); }
.grid { display: grid; gap: var(--s-3); }
.grid--2 { grid-template-columns: repeat(2,1fr); }
.grid--3 { grid-template-columns: repeat(3,1fr); }
.grid--4 { grid-template-columns: repeat(4,1fr); }
@media (max-width: 900px) { .grid--3,.grid--4 { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 600px) { .grid--2,.grid--3,.grid--4 { grid-template-columns: 1fr; } }

/* 4. Buttons ------------------------------------------------------ */
.btn { display: inline-flex; align-items: center; gap: .5rem; font-family: var(--font-head); font-weight: 700; font-size: 1rem; line-height: 1; padding: .95rem 1.6rem; border-radius: var(--radius-sm); border: 2px solid transparent; cursor: pointer; transition: all var(--transition); text-align: center; min-height: 48px; }
.btn--primary { background: var(--c-cta); color: #fff; }
.btn--primary:hover { background: var(--c-cta-hover); color: #fff; transform: translateY(-1px); }
.btn--primary:active { background: var(--c-cta-hover); color: #fff; transform: translateY(0); }
.btn--primary:focus-visible { outline: 2px solid transparent; outline-offset: 2px; box-shadow: 0 0 0 2px #fff, 0 0 0 5px var(--c-primary); }
.btn--secondary { background: transparent; color: var(--c-primary); border-color: var(--c-primary); }
.btn--secondary:hover { background: var(--c-primary); color: #fff; }
.btn--ghost-light { background: transparent; color: #fff; border-color: rgba(255,255,255,.5); }
.btn--ghost-light:hover { background: #fff; color: var(--c-primary); }
.btn--lg { padding: 1.1rem 2rem; font-size: 1.0625rem; }
.btn--block { width: 100%; justify-content: center; }
.cta-row { display: flex; flex-wrap: wrap; gap: var(--s-2); }

/* 5. Header / Nav ------------------------------------------------- */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.97); backdrop-filter: blur(6px); border-bottom: 1px solid var(--c-border); }
.topbar { background: var(--c-primary); color: var(--c-text-invert); font-size: var(--fs-small); }
.topbar .container { display: flex; justify-content: space-between; align-items: center; gap: var(--s-2); padding-block: .4rem; }
.topbar a { color: var(--c-text-invert); }
.topbar a:hover { color: var(--c-accent); }
.topbar__badges { display: flex; gap: var(--s-3); flex-wrap: wrap; }
.topbar__badges span { display: inline-flex; align-items: center; gap: .4rem; }
@media (max-width: 700px) { .topbar__badges { display: none; } }
.nav { display: flex; align-items: center; justify-content: space-between; gap: var(--s-2); padding-block: .75rem; }
.nav__logo { display: flex; align-items: center; gap: .6rem; line-height: 1.1; font-family: var(--font-head); font-weight: 800; color: var(--c-primary); font-size: 1.2rem; }
.nav__logo-mark { height: 34px; width: auto; display: block; flex: none; }
.nav__logo-text { display: flex; flex-direction: column; }
.nav__logo small { font-size: .7rem; font-weight: 600; color: var(--c-text-muted); letter-spacing: .04em; }
.site-footer .nav__logo-mark { filter: brightness(0) invert(1); height: 52px; }
.nav__menu { display: flex; align-items: center; gap: .6rem; list-style: none; margin: 0; padding: 0; flex-wrap: nowrap; }
.nav__menu a:not(.btn) { color: var(--c-text); font-weight: 600; font-size: .88rem; white-space: nowrap; padding-block: .4rem; }
.nav__menu a:not(.btn):hover { color: var(--c-accent); }
.nav__menu a.btn { padding-inline: 1rem; font-size: .9rem; color: #fff; }
.nav__menu a.btn:hover { color: #fff; }
.nav__actions { display: flex; align-items: center; gap: var(--s-2); }
.nav__toggle { display: none; background: none; border: 0; cursor: pointer; padding: .5rem; position: relative; z-index: 110; }
.nav__toggle span { display: block; width: 26px; height: 3px; background: var(--c-primary); margin: 5px 0; border-radius: 2px; transition: var(--transition); }
@media (max-width: 1240px) {
  .nav__toggle { display: block; }
  .nav__menu { position: fixed; inset: 0 0 0 auto; height: 100dvh; width: min(330px,86vw); background: #fff; flex-direction: column; align-items: stretch; justify-content: flex-start; padding: calc(var(--s-5) + .5rem) var(--s-4) var(--s-4); gap: 0; transform: translateX(100%); visibility: hidden; transition: transform var(--transition), visibility var(--transition); box-shadow: var(--shadow-lg); overflow-y: auto; -webkit-overflow-scrolling: touch; }
  .nav__menu.is-open { transform: translateX(0); visibility: visible; }
  .nav__menu li { width: 100%; }
  .nav__menu a { display: block; font-size: 1rem; padding: .6rem 0; border-bottom: 1px solid var(--c-border); }
  .nav__menu .btn { display: flex; justify-content: center; width: 100%; margin-top: var(--s-2); padding-block: .85rem; font-size: 1.05rem; border-bottom: 0; }
  .nav--open .nav__toggle span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
  .nav--open .nav__toggle span:nth-child(2) { opacity: 0; }
  .nav--open .nav__toggle span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
}

/* 6. Hero --------------------------------------------------------- */
.hero { position: relative; background: linear-gradient(rgba(22,29,36,.82), rgba(22,29,36,.88)), var(--c-primary); background-size: cover; background-position: center; color: #fff; padding-block: var(--s-7); }
.hero h1 { color: #fff; max-width: 18ch; }
.hero__sub { font-size: 1.2rem; color: rgba(245,247,250,.9); max-width: 56ch; margin-bottom: var(--s-3); }
.hero__points { list-style: none; padding: 0; margin: var(--s-3) 0; display: flex; flex-wrap: wrap; gap: var(--s-2) var(--s-4); }
.hero__points li { display: flex; align-items: center; gap: .5rem; font-weight: 600; }
.hero__points svg { color: var(--c-accent); flex-shrink: 0; }
.hero--page { padding-block: var(--s-6); }
.hero--page h1 { max-width: 24ch; }

/* 7. Cards -------------------------------------------------------- */
.card { background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius); padding: var(--s-3); box-shadow: var(--shadow-sm); transition: transform var(--transition), box-shadow var(--transition); height: 100%; }
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.card__icon { width: 52px; height: 52px; border-radius: var(--radius-sm); background: rgba(44,82,130,.1); color: var(--c-secondary); display: flex; align-items: center; justify-content: center; margin-bottom: var(--s-2); }
.card h3 { margin-bottom: .5rem; }
.card p { color: var(--c-text-muted); margin-bottom: var(--s-2); }
.card__link { font-weight: 700; font-family: var(--font-head); display: inline-flex; align-items: center; gap: .3rem; }
.card__img { border-radius: var(--radius-sm); margin-bottom: var(--s-2); aspect-ratio: 16/10; object-fit: cover; width: 100%; }
.feature { display: flex; gap: var(--s-2); }
.feature__icon { flex-shrink: 0; width: 44px; height: 44px; border-radius: 50%; background: rgba(226,100,27,.12); color: var(--c-accent); display: flex; align-items: center; justify-content: center; }
.feature h3 { font-size: 1.15rem; margin-bottom: .25rem; }
.feature p { color: var(--c-text-muted); margin: 0; }

/* 8. Trust Bar ---------------------------------------------------- */
.trustbar { background: var(--c-bg-alt); border-block: 1px solid var(--c-border); }
.trustbar .container { display: flex; flex-wrap: wrap; gap: var(--s-3) var(--s-5); align-items: center; justify-content: center; padding-block: var(--s-2); }
.trustbar__item { display: flex; align-items: center; gap: .6rem; font-weight: 700; font-family: var(--font-head); color: var(--c-primary); font-size: .98rem; }
.trustbar__item svg { color: var(--c-success); flex-shrink: 0; }

/* 9. Steps -------------------------------------------------------- */
.step__num { width: 44px; height: 44px; border-radius: 50%; background: var(--c-accent); color: #fff; display: flex; align-items: center; justify-content: center; font-family: var(--font-head); font-weight: 800; margin-bottom: var(--s-2); }

/* 10. FAQ --------------------------------------------------------- */
.faq { max-width: 820px; margin-inline: auto; }
.faq__item { border-bottom: 1px solid var(--c-border); }
.faq__q { width: 100%; text-align: left; background: none; border: 0; cursor: pointer; font-family: var(--font-head); font-weight: 700; font-size: 1.1rem; color: var(--c-primary); padding: var(--s-2) 0; display: flex; justify-content: space-between; align-items: center; gap: var(--s-2); }
.faq__q::after { content: "+"; font-size: 1.5rem; color: var(--c-accent); transition: transform var(--transition); flex-shrink: 0; }
.faq__item.is-open .faq__q::after { transform: rotate(45deg); }
.faq__a { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq__a-inner { padding-bottom: var(--s-2); color: var(--c-text-muted); }

/* 11. CTA Band ---------------------------------------------------- */
.cta-band { background: var(--c-secondary); color: #fff; }
.cta-band .container { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--s-3); }
.cta-band h2 { color: #fff; margin: 0; }
.cta-band p { color: rgba(255,255,255,.85); margin: .25rem 0 0; }

/* 12. Forms ------------------------------------------------------- */
.form { display: grid; gap: var(--s-2); position: relative; }
.form__row { display: grid; gap: var(--s-2); grid-template-columns: 1fr 1fr; }
@media (max-width: 600px) { .form__row { grid-template-columns: 1fr; } }
.form label { font-weight: 600; font-size: var(--fs-small); display: block; margin-bottom: .3rem; }
.form input, .form textarea, .form select { width: 100%; padding: .8rem .9rem; border: 1px solid var(--c-border); border-radius: var(--radius-sm); font: inherit; font-size: 1rem; background: #fff; transition: border-color var(--transition); }
.form input:focus, .form textarea:focus, .form select:focus { border-color: var(--c-secondary); }
.form input:focus-visible, .form textarea:focus-visible, .form select:focus-visible { outline: 3px solid var(--c-accent-600); outline-offset: 1px; border-color: var(--c-secondary); }
.form textarea { min-height: 130px; resize: vertical; }
.form__hint { font-size: var(--fs-small); color: var(--c-text-muted); }
.form__check { display: flex; gap: .6rem; align-items: flex-start; font-size: var(--fs-small); }
.form__check input { width: auto; margin-top: .2rem; }
.hp-field { position: absolute; left: -9999px; opacity: 0; height: 0; width: 0; }
.form-note { padding: var(--s-2); border-radius: var(--radius-sm); font-weight: 600; }
.form-note--ok { background: rgba(47,133,90,.12); color: var(--c-success); }
.form-note--err { background: rgba(226,100,27,.12); color: var(--c-accent-600); }

/* 13. Rechner ----------------------------------------------------- */
.calc { background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius); box-shadow: var(--shadow); padding: var(--s-4); }
.calc__result { margin-top: var(--s-3); padding: var(--s-3); border-radius: var(--radius-sm); background: var(--c-bg-alt); border-left: 4px solid var(--c-accent); }
.calc__result strong { font-size: 1.6rem; color: var(--c-primary); font-family: var(--font-head); display: block; }

/* 14. Breadcrumb -------------------------------------------------- */
.breadcrumb { font-size: var(--fs-small); color: var(--c-text-muted); padding-block: var(--s-2); }
.breadcrumb a { color: var(--c-text-muted); }
.breadcrumb a:hover { color: var(--c-accent); }

/* 15. Prose ------------------------------------------------------- */
.prose { max-width: 820px; }
.prose h2 { margin-top: var(--s-5); }
.prose h3 { margin-top: var(--s-4); }
.prose table { width: 100%; border-collapse: collapse; margin: var(--s-3) 0; font-size: var(--fs-small); }
.prose th, .prose td { border: 1px solid var(--c-border); padding: .7rem; text-align: left; }
.prose th { background: var(--c-bg-alt); font-family: var(--font-head); }
.callout { background: rgba(44,82,130,.07); border-left: 4px solid var(--c-secondary); padding: var(--s-3); border-radius: var(--radius-sm); margin: var(--s-3) 0; }
.callout--warn { background: rgba(226,100,27,.08); border-left-color: var(--c-accent); }

/* 16. Footer ------------------------------------------------------ */
.site-footer { background: var(--c-primary-700); color: rgba(245,247,250,.8); padding-block: var(--s-6) var(--s-4); font-size: var(--fs-small); }
.site-footer h4 { color: #fff; font-size: 1rem; margin-bottom: var(--s-2); }
.site-footer a { color: rgba(245,247,250,.8); }
.site-footer a:hover { color: var(--c-accent); }
.site-footer ul { list-style: none; padding: 0; }
.footer__bottom { border-top: 1px solid rgba(255,255,255,.12); margin-top: var(--s-4); padding-top: var(--s-3); display: flex; flex-wrap: wrap; gap: var(--s-2); justify-content: space-between; }

/* 17. Sticky CTA -------------------------------------------------- */
.sticky-cta { position: fixed; bottom: 0; left: 0; right: 0; z-index: 90; display: none; gap: 1px; background: var(--c-border); box-shadow: 0 -2px 12px rgba(0,0,0,.12); }
.sticky-cta a { flex: 1; text-align: center; padding: .9rem .5rem; font-weight: 700; font-family: var(--font-head); font-size: .95rem; display: flex; align-items: center; justify-content: center; gap: .4rem; }
.sticky-cta .sc-call { background: var(--c-primary); color: #fff; }
.sticky-cta .sc-offer { background: var(--c-cta); color: #fff; }
.sticky-cta .sc-offer:hover { background: var(--c-cta-hover); color: #fff; }
@media (max-width: 768px) { .sticky-cta { display: flex; } body { padding-bottom: 60px; } }

/* 18. Helpers ----------------------------------------------------- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.list-check { list-style: none; padding: 0; }
.list-check li { position: relative; padding-left: 1.8rem; margin-bottom: .6rem; }
.list-check li::before { content: "✓"; position: absolute; left: 0; color: var(--c-success); font-weight: 800; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s-5); align-items: center; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; gap: var(--s-3); } }