/* Mentorigis s.r.o.
 *
 * Design direction (OpenDesign: design-system "clean", skill "taste-skill"):
 * - flat surfaces, one accent (deep red), square geometry, hairlines instead of shadows
 * - a single type voice (IBM Plex Sans), light weight for headlines
 * - content sits on one hairline grid, like a register rather than a landing page
 */

@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("assets/fonts/plex-sans-400.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+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("assets/fonts/plex-sans-ext-400.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("assets/fonts/plex-sans-600.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+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("assets/fonts/plex-sans-ext-600.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

:root {
  /* colour: one accent, neutrals only otherwise */
  --paper: #fbfaf8;
  --paper-2: #f2f0eb;
  --ink: #1b1d1a;
  --ink-2: #43463f;
  --ink-3: #6a6d64;
  --line: #dedad1;
  --line-strong: #c3bfb4;
  --accent: #a3341f;
  --accent-hover: #822815;
  --accent-ink: #ffffff;
  --dark: #171916;

  /* type */
  --font: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
  --size-sm: 14px;
  --size-base: 17px;
  --size-lg: 20px;
  --size-h2: clamp(28px, 3.2vw, 38px);
  --size-h1: clamp(40px, 6.4vw, 76px);
  --leading: 1.6;

  /* grid */
  --container: 1180px;
  --gutter: 32px;
  --label-col: 210px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-8: 48px;
  --space-section: clamp(64px, 8vw, 112px);

  --focus: 0 0 0 2px var(--paper), 0 0 0 4px var(--accent);
  --ease: cubic-bezier(0.2, 0, 0, 1);
}

*,
*::before,
*::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: var(--size-base);
  line-height: var(--leading);
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "kern" 1;
}

img, svg { display: block; }

a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  text-decoration-color: var(--line-strong);
  transition: color 150ms var(--ease), text-decoration-color 150ms var(--ease);
}
a:hover { color: var(--accent); text-decoration-color: var(--accent); }

:focus-visible {
  outline: none;
  box-shadow: var(--focus);
}

h1, h2, h3, p { margin: 0; }

h1 {
  font-size: var(--size-h1);
  font-weight: 400;
  line-height: 1.02;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

h2 {
  font-size: var(--size-h2);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h3 {
  font-size: var(--size-sm);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.container {
  width: 100%;
  max-width: calc(var(--container) + var(--gutter) * 2);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.skip-link {
  position: absolute;
  left: var(--gutter);
  top: -60px;
  z-index: 100;
  padding: 10px 16px;
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
}
.skip-link:focus { top: 12px; color: var(--paper); }

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(251, 250, 248, 0.94);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  min-height: 64px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
}
.brand:hover { color: var(--ink); text-decoration: none; }
.brand-mark {
  align-self: center;
  color: var(--accent);
  flex: none;
}
.brand-name {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.brand-legal {
  font-size: var(--size-sm);
  color: var(--ink-3);
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  font-size: var(--size-sm);
}
.nav a {
  color: var(--ink-2);
  text-decoration: none;
  padding: 4px 0;
  border-bottom: 1px solid transparent;
}
.nav a:hover { color: var(--ink); border-bottom-color: var(--ink); }
.nav .nav-cta {
  color: var(--accent);
  font-weight: 600;
}
.nav .nav-cta:hover { color: var(--accent-hover); border-bottom-color: var(--accent); }

.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  min-height: 40px;
  padding: 0 2px;
  background: none;
  border: 0;
  color: var(--ink);
  font: inherit;
  font-size: var(--size-sm);
  cursor: pointer;
}
.nav-toggle-icon {
  width: 18px;
  height: 10px;
  border-top: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
}

/* Hero */

.hero {
  padding-top: clamp(56px, 9vw, 120px);
  padding-bottom: var(--space-section);
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  gap: clamp(32px, 6vw, 96px);
  align-items: end;
}

.hero-kicker {
  max-width: 44ch;
  color: var(--ink-3);
  margin-bottom: var(--space-6);
}

.hero-copy h1 {
  max-width: 15ch;
  margin-bottom: var(--space-5);
}

.hero-lead {
  max-width: 46ch;
  font-size: var(--size-lg);
  line-height: 1.5;
  color: var(--ink-2);
  margin-bottom: var(--space-6);
}

.hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-3); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  font-size: var(--size-base);
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background-color 150ms var(--ease), border-color 150ms var(--ease);
}
.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
}
.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--accent-ink);
  text-decoration: none;
}
.btn-primary:active { transform: translateY(1px); }

.hero-card {
  margin: 0;
  border-top: 1px solid var(--ink);
  font-size: var(--size-sm);
}
.hero-card-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-4);
  align-items: baseline;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
}
.hero-card dt { color: var(--ink-3); }
.hero-card dd { margin: 0; text-align: right; color: var(--ink); }
.hero-card a { text-decoration-color: var(--accent); color: var(--accent); }
.hero-card a:hover { color: var(--accent-hover); }

/* Sections */

.section {
  padding: var(--space-section) 0;
  border-bottom: 1px solid var(--line);
}
.section-gray { background: var(--paper-2); }

.section-head {
  display: grid;
  grid-template-columns: var(--label-col) minmax(0, 1fr);
  gap: var(--space-6);
  align-items: baseline;
}
.section-head p {
  max-width: 62ch;
  color: var(--ink-2);
}

/* Register-style fact list: one hairline per row, label left, value right */

.facts {
  margin-top: var(--space-8);
  border-top: 1px solid var(--ink);
}
.fact {
  display: grid;
  grid-template-columns: var(--label-col) minmax(0, 1fr);
  gap: var(--space-6);
  padding: var(--space-5) 0;
  border-bottom: 1px solid var(--line);
}
.fact-label {
  color: var(--ink-3);
  font-size: var(--size-sm);
  padding-top: 2px;
}
.fact-value {
  font-size: var(--size-lg);
  line-height: 1.45;
  color: var(--ink);
}
.fact-note {
  display: inline-block;
  margin-top: 2px;
  font-size: var(--size-sm);
  color: var(--ink-3);
}

/* Contact */

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr);
  gap: clamp(32px, 6vw, 96px);
  align-items: start;
}
.contact-copy h2 { margin-bottom: var(--space-4); }
.contact-copy p { max-width: 34ch; color: var(--ink-2); }

.contact-details {
  display: grid;
  gap: var(--space-6);
  padding-top: 6px;
}
.contact-mail {
  font-size: clamp(26px, 3.6vw, 40px);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: var(--space-3);
  justify-self: start;
}
.contact-mail:hover {
  color: var(--accent-hover);
  border-bottom-color: var(--accent-hover);
  text-decoration: none;
}
.contact-address {
  font-style: normal;
  color: var(--ink-2);
  line-height: 1.7;
}

/* Imprint */

#impressum h2 { margin-bottom: var(--space-8); }
.prose {
  max-width: 760px;
  border-top: 1px solid var(--ink);
}
.prose-block {
  display: grid;
  grid-template-columns: var(--label-col) minmax(0, 1fr);
  gap: var(--space-6);
  padding: var(--space-5) 0;
  border-bottom: 1px solid var(--line);
}
.prose-block p {
  color: var(--ink-2);
  line-height: 1.7;
}
.prose-block a { color: var(--accent); }

/* Footer */

.site-footer {
  background: var(--dark);
  color: #b3b6ad;
  font-size: var(--size-sm);
  padding: var(--space-8) 0 var(--space-6);
}
.footer-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-5);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid #2f322c;
}
.brand-dark { color: #f3f1ec; }
.brand-dark:hover { color: #ffffff; text-decoration: none; }
.brand-dark .brand-legal { color: #9a9d94; }
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  margin: 0;
  padding: 0;
  list-style: none;
}
.footer-links a { color: #dfe2da; text-decoration: none; }
.footer-links a:hover { color: #ffffff; text-decoration: underline; text-decoration-color: #ffffff; }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-2) var(--space-6);
  padding-top: var(--space-5);
  color: #8c8f86;
}
.footer-bottom p { margin: 0; }

/* Responsive */

@media (max-width: 900px) {
  .hero-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    align-items: start;
  }
  .hero-card { margin-top: var(--space-4); }
  .section-head,
  .fact,
  .prose-block {
    grid-template-columns: 1fr;
    gap: var(--space-2);
  }
  .fact-label { padding-top: 0; }
}

@media (max-width: 720px) {
  :root {
    --gutter: 20px;
    --size-base: 16px;
    --size-lg: 18px;
  }

  .nav-toggle { display: inline-flex; }

  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    padding: 8px var(--gutter) 20px;
    font-size: var(--size-base);
  }
  .nav.open { display: flex; }
  .nav a {
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
  }
  .nav a:hover { border-bottom-color: var(--ink); }

  .hero-copy h1 { max-width: none; }
  .hero-actions .btn { width: 100%; }
  .fact-value { font-size: var(--size-base); }
  .contact-mail { font-size: 24px; }
  .footer-top { flex-direction: column; align-items: flex-start; }
  .footer-links { flex-direction: column; gap: var(--space-3); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}