/* ==========================================================================
   Hitest GmbH – gemeinsame Styles
   Alle Farben, Schriften und Größen werden ausschließlich hier in :root
   definiert. Schriften sind vorläufig und werden später ausgetauscht.
   ========================================================================== */

:root {
  /* Farben – Palette „Logo-Kobalt" */
  --color-primary:   #1F2FB8;
  --color-secondary: #EDF0F7;
  --color-accent:    #D42A20;
  --color-bg:        #FAFAFC;
  --color-text:      #1C2030;
  --color-white:     #FFFFFF;

  /* Abgeleitete Töne */
  --color-primary-dark:  color-mix(in srgb, var(--color-primary) 80%, black);
  --color-primary-soft:  color-mix(in srgb, var(--color-primary) 8%, var(--color-white));
  --color-accent-dark:   color-mix(in srgb, var(--color-accent) 82%, black);
  --color-muted:         color-mix(in srgb, var(--color-text) 68%, var(--color-bg));
  --color-line:          color-mix(in srgb, var(--color-text) 12%, var(--color-bg));
  --color-line-strong:   color-mix(in srgb, var(--color-text) 22%, var(--color-bg));
  --color-on-dark:       color-mix(in srgb, var(--color-white) 92%, var(--color-primary));
  --color-on-dark-muted: color-mix(in srgb, var(--color-white) 66%, var(--color-text));

  /* Schriften (Platzhalter) */
  --font-display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --font-body:    "Source Sans 3", "Segoe UI", Arial, sans-serif;
  --font-mono:    "IBM Plex Mono", ui-monospace, Consolas, monospace;

  /* Type-Scale */
  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-lg:   1.25rem;
  --text-xl:   1.5rem;
  --text-2xl:  2rem;
  --text-3xl:  2.5rem;
  --text-4xl:  3.5rem;

  /* Abstände (8er-Raster) */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-6: 3rem;
  --space-8: 4rem;
  --space-12: 6rem;

  /* Ebenen: base → elevated → floating (blau getönt, mehrschichtig) */
  --shadow-base:     0 1px 2px color-mix(in srgb, var(--color-primary) 6%, transparent);
  --shadow-elevated: 0 1px 2px color-mix(in srgb, var(--color-primary) 6%, transparent),
                     0 8px 24px -8px color-mix(in srgb, var(--color-primary) 14%, transparent);
  --shadow-floating: 0 2px 4px color-mix(in srgb, var(--color-primary) 8%, transparent),
                     0 24px 48px -16px color-mix(in srgb, var(--color-primary) 22%, transparent);

  --radius: 6px;
  --ease-spring: cubic-bezier(0.34, 1.4, 0.64, 1);
  --header-h: 4.5rem;
}

/* ---------- Reset (Tailwind-Preflight ist deaktiviert, damit diese Datei Vorrang hat) ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; border: 0 solid; }
ul, ol { list-style: none; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
table { border-collapse: collapse; }
[hidden] { display: none !important; }

/* ---------- Basis ---------- */
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + var(--space-3)); }
body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.15; font-weight: 700; hyphens: auto; overflow-wrap: break-word; }
h1, .h1 { font-size: var(--text-3xl); letter-spacing: -0.03em; }
h2, .h2 { font-size: var(--text-2xl); letter-spacing: -0.03em; }
h3, .h3 { font-size: var(--text-lg); letter-spacing: -0.01em; }
@media (min-width: 768px) {
  h1, .h1 { font-size: var(--text-4xl); }
  h2, .h2 { font-size: var(--text-3xl); }
}
p { max-width: 68ch; }
::selection { background: var(--color-primary); color: var(--color-white); }
img { max-width: 100%; display: block; }

.container-site { width: 100%; max-width: 76rem; margin-inline: auto; padding-inline: var(--space-2); }
@media (min-width: 768px) { .container-site { padding-inline: var(--space-4); } }

.section { padding-block: var(--space-8); }
@media (min-width: 768px) { .section { padding-block: var(--space-12); } }

/* Kleine technische Beschriftung („Datenblatt-Label") */
.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
}
.lead { font-size: var(--text-lg); color: var(--color-muted); line-height: 1.6; }
.muted { color: var(--color-muted); }
.mono { font-family: var(--font-mono); }

/* Fokus für alle interaktiven Elemente */
a, button, input, select, textarea, summary { outline: none; }
a:focus-visible, button:focus-visible, summary:focus-visible,
input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- Links ---------- */
.link {
  color: var(--color-primary);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--color-primary) 35%, transparent);
  text-underline-offset: 4px;
}
.link:hover { text-decoration-color: var(--color-primary); }
.link:active { opacity: 0.7; }

.link-arrow { display: inline-flex; align-items: center; gap: 0.4em; color: var(--color-primary); font-weight: 600; }
.link-arrow span { display: inline-block; transition: transform 220ms var(--ease-spring); }
.link-arrow:hover span { transform: translateX(4px); }
.link-arrow:active { opacity: 0.7; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5em;
  min-height: 44px; padding: 0.7rem 1.4rem;
  border-radius: var(--radius);
  font-family: var(--font-body); font-weight: 700; font-size: var(--text-base); line-height: 1.2;
  transition: transform 200ms var(--ease-spring), opacity 150ms ease;
  cursor: pointer; border: 0; text-decoration: none; white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0) scale(0.98); }
.btn-accent { background: var(--color-accent); color: var(--color-white); box-shadow: var(--shadow-base); }
.btn-accent:hover { background: var(--color-accent-dark); }
.btn-ghost { background: transparent; color: var(--color-primary); box-shadow: inset 0 0 0 1.5px var(--color-line-strong); }
.btn-ghost:hover { box-shadow: inset 0 0 0 1.5px var(--color-primary); }
.btn-light { background: var(--color-white); color: var(--color-primary); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-line);
}
.site-header__inner { height: var(--header-h); display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); }
.site-logo { display: flex; align-items: center; min-height: 44px; }
.site-logo img { height: 36px; width: auto; }
.site-logo:active { opacity: 0.7; }

.nav-main { display: none; }
.nav-main a {
  position: relative; display: inline-flex; align-items: center; min-height: 44px;
  padding-inline: 0.85rem; font-weight: 600; font-size: var(--text-base); color: var(--color-text);
}
.nav-main a::after {
  content: ""; position: absolute; left: 0.85rem; right: 0.85rem; bottom: 8px; height: 2px;
  background: var(--color-primary); transform: scaleX(0); transform-origin: left;
  transition: transform 240ms var(--ease-spring);
}
.nav-main a:hover::after, .nav-main a[aria-current="page"]::after { transform: scaleX(1); }
.nav-main a[aria-current="page"] { color: var(--color-primary); }
.nav-main a:active { opacity: 0.7; }

.header-actions { display: flex; align-items: center; gap: var(--space-2); }
.header-phone { display: none; font-family: var(--font-mono); font-size: var(--text-sm); color: var(--color-text); min-height: 44px; align-items: center; }
.header-phone:hover { color: var(--color-primary); }
.header-cta { display: none; }

.menu-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; border-radius: var(--radius); background: transparent; border: 0; cursor: pointer; color: var(--color-text);
}
.menu-toggle:hover { background: var(--color-secondary); }
.menu-toggle:active { transform: scale(0.94); }

@media (min-width: 640px) { .header-cta { display: inline-flex; } }
@media (min-width: 1024px) {
  .nav-main { display: flex; }
  .menu-toggle { display: none; }
}
@media (min-width: 1200px) { .header-phone { display: inline-flex; } }

/* Mobiles Menü */
.mobile-menu {
  position: fixed; inset: var(--header-h) 0 0 0; z-index: 49;
  background: var(--color-white);
  display: flex; flex-direction: column; justify-content: space-between;
  padding: var(--space-3) var(--space-2) var(--space-4);
  opacity: 0; transform: translateY(-8px); pointer-events: none;
  transition: opacity 180ms ease, transform 260ms var(--ease-spring);
}
.mobile-menu.is-open { opacity: 1; transform: none; pointer-events: auto; }
.mobile-menu nav a {
  display: flex; align-items: center; justify-content: space-between; min-height: 56px;
  font-family: var(--font-display); font-size: var(--text-xl); font-weight: 700; letter-spacing: -0.02em;
  border-bottom: 1px solid var(--color-line);
}
.mobile-menu nav a[aria-current="page"] { color: var(--color-primary); }
.mobile-menu nav a:active { opacity: 0.6; }
.mobile-menu__contact a { display: flex; align-items: center; min-height: 44px; font-family: var(--font-mono); font-size: var(--text-sm); }
@media (min-width: 1024px) { .mobile-menu { display: none; } }

/* ---------- Footer ---------- */
.site-footer { background: var(--color-text); color: var(--color-on-dark-muted); font-size: var(--text-sm); }
.site-footer h2 { font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-on-dark); font-weight: 500; margin-bottom: var(--space-2); }
.site-footer a { color: var(--color-on-dark); display: inline-flex; align-items: center; min-height: 36px; }
.site-footer a:hover { color: var(--color-white); text-decoration: underline; text-underline-offset: 4px; }
.site-footer a:active { opacity: 0.7; }
.footer-logo { background: var(--color-white); padding: 0.5rem 0.75rem; border-radius: var(--radius); display: inline-block; }
.footer-logo img { height: 30px; width: auto; }
.footer-bottom { border-top: 1px solid color-mix(in srgb, var(--color-white) 12%, transparent); }

/* ---------- Bilder / Platzhalter ---------- */
.media { position: relative; overflow: hidden; border-radius: var(--radius); background: var(--color-secondary); }
.media img { width: 100%; height: 100%; object-fit: cover; }
.media::after {
  content: ""; position: absolute; inset: 0;
  background: var(--color-primary); mix-blend-mode: multiply; opacity: 0.18; pointer-events: none;
}
.media figcaption {
  position: absolute; left: var(--space-2); bottom: var(--space-2); z-index: 1;
  font-family: var(--font-mono); font-size: var(--text-xs); color: var(--color-text);
  background: var(--color-white); padding: 0.2rem 0.5rem; border-radius: 3px;
}

.avatar {
  flex-shrink: 0; width: 80px; height: 80px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--color-primary-soft); color: var(--color-primary);
  font-family: var(--font-display); font-size: var(--text-xl); font-weight: 700; letter-spacing: -0.02em;
  border: 2px solid var(--color-primary);
}

/* ---------- Fakten / Messwerte ---------- */
.fact-value { font-family: var(--font-display); font-weight: 700; font-size: var(--text-xl); letter-spacing: -0.03em; color: var(--color-primary); line-height: 1.1; }
.facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (min-width: 1024px) {
  .facts { grid-template-columns: repeat(4, auto); justify-content: space-between; }
  .fact-value { white-space: nowrap; font-size: var(--text-2xl); }
  .fact-label { max-width: 15rem; }
}
@media (min-width: 1200px) { .fact-value { font-size: var(--text-3xl); } }
.fact-label { font-size: var(--text-sm); color: var(--color-muted); line-height: 1.5; margin-top: var(--space-1); }

.norm-strip { font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.04em; color: var(--color-muted); }

/* Messraster – feines Gitter als Hintergrund (Signatur-Element) */
.grid-bg {
  background-color: var(--color-secondary);
  background-image:
    linear-gradient(var(--color-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-line) 1px, transparent 1px);
  background-size: 32px 32px;
}

/* ---------- Lebenszyklus ---------- */
.lifecycle { position: relative; display: grid; gap: var(--space-4); counter-reset: step; }
.lifecycle::before {
  content: ""; position: absolute; left: 21px; top: 22px; bottom: 22px; width: 2px; background: var(--color-primary);
}
.lifecycle-step { position: relative; padding-left: 4.25rem; display: block; color: inherit; }
.lifecycle-step__num {
  position: absolute; left: 0; top: 0;
  width: 44px; height: 44px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--color-white); color: var(--color-primary);
  border: 2px solid var(--color-primary);
  font-family: var(--font-mono); font-size: var(--text-sm); font-weight: 600;
  transition: transform 260ms var(--ease-spring);
}
.lifecycle-step h3 { margin-bottom: var(--space-1); }
.lifecycle-step p { color: var(--color-muted); font-size: var(--text-base); }
.lifecycle-step .link-arrow { margin-top: var(--space-1); font-size: var(--text-sm); }
.lifecycle-step:hover .lifecycle-step__num { transform: scale(1.12); }
.lifecycle-step:hover .link-arrow span { transform: translateX(4px); }
.lifecycle-step:active { opacity: 0.8; }

@media (min-width: 900px) {
  .lifecycle { grid-template-columns: repeat(4, 1fr); gap: var(--space-4); }
  .lifecycle::before { left: 22px; right: calc((100% - 6rem) / 4 - 22px); top: 21px; bottom: auto; width: auto; height: 2px; }
  .lifecycle-step { padding-left: 0; padding-top: 4.25rem; }
}

/* ---------- Karten / Flächen ---------- */
.surface { background: var(--color-white); border-radius: var(--radius); box-shadow: var(--shadow-base); border: 1px solid var(--color-line); }
.surface-elevated { background: var(--color-white); border-radius: var(--radius); box-shadow: var(--shadow-elevated); border: 1px solid var(--color-line); }

.feature-card { display: flex; flex-direction: column; overflow: hidden; color: inherit; transition: transform 260ms var(--ease-spring); }
.feature-card:hover { transform: translateY(-4px); }
.feature-card:active { transform: translateY(-1px); }
.feature-card:hover .link-arrow span { transform: translateX(4px); }

/* ---------- Listen ---------- */
.list-tick { display: grid; gap: 0.35rem; }
.list-tick li { position: relative; padding-left: 1.25rem; }
.list-tick li::before {
  content: ""; position: absolute; left: 0; top: 0.72em; width: 8px; height: 2px; background: var(--color-primary);
}
.list-cols { columns: 1; column-gap: var(--space-4); }
@media (min-width: 640px) { .list-cols { columns: 2; } }
.list-cols li { break-inside: avoid; }

.tag {
  display: inline-flex; align-items: center; min-height: 28px; padding: 0 0.6rem;
  font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.02em;
  background: var(--color-primary-soft); color: var(--color-primary); border-radius: 3px;
}

/* Branchenliste */
.industry-row { display: grid; gap: var(--space-1); padding-block: var(--space-3); border-top: 1px solid var(--color-line); color: inherit; }
.industry-row:last-child { border-bottom: 1px solid var(--color-line); }
.industry-row h3 { transition: transform 240ms var(--ease-spring); }
.industry-row:hover h3 { transform: translateX(6px); color: var(--color-primary); }
.industry-row:active { opacity: 0.8; }
@media (min-width: 768px) { .industry-row { grid-template-columns: 16rem 1fr auto; align-items: baseline; gap: var(--space-4); } }

/* Stufenleiter (10-Stufen-Prüfung) */
.steps-ladder { display: grid; gap: 0; counter-reset: ladder; }
.steps-ladder li {
  counter-increment: ladder; display: grid; grid-template-columns: 3rem 1fr; align-items: center;
  min-height: 48px; border-bottom: 1px solid var(--color-line);
}
.steps-ladder li::before {
  content: counter(ladder, decimal-leading-zero);
  font-family: var(--font-mono); font-size: var(--text-sm); color: var(--color-primary); font-weight: 600;
}
.ladder-track { flex: 0 0 28%; height: 6px; border-radius: 3px; background: var(--color-secondary); }
.ladder-bar { display: block; height: 100%; border-radius: 3px; background: var(--color-primary); }

/* Tabellen (Ausstattung) */
.spec-table { width: 100%; border-collapse: collapse; font-size: var(--text-sm); }
.spec-table th, .spec-table td { text-align: left; padding: 0.75rem 0.75rem 0.75rem 0; border-bottom: 1px solid var(--color-line); vertical-align: top; }
.spec-table th { font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.06em; text-transform: uppercase; color: var(--color-muted); font-weight: 500; }
.spec-table td:first-child { font-weight: 700; white-space: nowrap; }
.spec-table .mono { color: var(--color-primary); white-space: nowrap; }
.table-wrap { overflow-x: auto; }
@media (max-width: 639px) {
  .spec-table thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .spec-table tr { display: grid; gap: 0.15rem; padding-block: 0.75rem; border-bottom: 1px solid var(--color-line); }
  .spec-table td { display: block; padding: 0; border: 0; white-space: normal !important; }
}

/* Unternavigation (Leistungen) */
.subnav a {
  display: flex; align-items: center; min-height: 40px; padding-left: var(--space-2);
  border-left: 2px solid var(--color-line); color: var(--color-muted); font-size: var(--text-sm); font-weight: 600;
  transition: transform 200ms var(--ease-spring);
}
.subnav a:hover { color: var(--color-primary); border-left-color: var(--color-primary); transform: translateX(2px); }
.subnav a.is-active { color: var(--color-primary); border-left-color: var(--color-primary); }
.subnav a:active { opacity: 0.7; }

/* Download-Links */
.download {
  display: inline-flex; align-items: center; gap: 0.6rem; min-height: 44px;
  font-weight: 600; color: var(--color-primary);
}
.download small { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--color-muted); font-weight: 400; }
.download:hover { text-decoration: underline; text-underline-offset: 4px; }
.download:active { opacity: 0.7; }

/* Zeitleiste */
.timeline { display: grid; gap: var(--space-3); border-left: 2px solid var(--color-primary); padding-left: var(--space-3); }
.timeline li { position: relative; }
.timeline li::before {
  content: ""; position: absolute; left: calc(-1 * var(--space-3) - 7px); top: 0.45em;
  width: 12px; height: 12px; border-radius: 50%; background: var(--color-white); border: 2px solid var(--color-primary);
}
.timeline .year { font-family: var(--font-mono); font-size: var(--text-sm); color: var(--color-primary); font-weight: 600; }

/* CTA-Band */
.cta-band { background: var(--color-primary); color: var(--color-on-dark); }
.cta-band h2 { color: var(--color-white); }
.cta-band a.cta-contact { color: var(--color-white); font-family: var(--font-mono); font-size: var(--text-sm); display: inline-flex; align-items: center; min-height: 44px; }
.cta-band a.cta-contact:hover { text-decoration: underline; text-underline-offset: 4px; }
.cta-band a.cta-contact:active { opacity: 0.7; }

/* ---------- Formular ---------- */
.field { display: grid; gap: 0.35rem; }
.field label { font-weight: 600; font-size: var(--text-sm); }
.field label .req { color: var(--color-accent); }
.input {
  width: 100%; min-height: 48px; padding: 0.65rem 0.85rem;
  background: var(--color-white); color: var(--color-text);
  border: 1.5px solid var(--color-line-strong); border-radius: var(--radius);
  font-family: var(--font-body); font-size: var(--text-base);
  transition: border-color 150ms ease;
}
.input:hover { border-color: var(--color-muted); }
.input:focus-visible { border-color: var(--color-primary); outline-offset: 1px; }
textarea.input { min-height: 9rem; resize: vertical; }
.field-error { font-size: var(--text-sm); color: var(--color-accent-dark); display: none; }
.field.has-error .input { border-color: var(--color-accent); }
.field.has-error .field-error,
.checkbox-field.has-error .field-error { display: block; }
.checkbox-field.has-error .checkbox input { outline: 2px solid var(--color-accent); outline-offset: 2px; }
.checkbox { display: flex; gap: 0.75rem; align-items: flex-start; font-size: var(--text-sm); cursor: pointer; }
.checkbox input { width: 22px; height: 22px; margin-top: 0.15rem; accent-color: var(--color-primary); flex-shrink: 0; }
.form-status { border-radius: var(--radius); padding: var(--space-2); font-weight: 600; display: none; }
.form-status.is-success { display: block; background: var(--color-primary-soft); color: var(--color-primary-dark); }
.form-status.is-error { display: block; background: color-mix(in srgb, var(--color-accent) 10%, var(--color-white)); color: var(--color-accent-dark); }

/* Hinweis-Box (Platzhalter) */
.notice {
  border-left: 4px solid var(--color-accent);
  background: color-mix(in srgb, var(--color-accent) 7%, var(--color-white));
  padding: var(--space-2) var(--space-3); border-radius: 0 var(--radius) var(--radius) 0;
}

/* Prosa (Rechtstexte) */
.prose h2 { font-size: var(--text-xl); margin-top: var(--space-6); margin-bottom: var(--space-2); }
.prose p, .prose ul { margin-bottom: var(--space-2); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}