/* ─────────────────────────────────────────────────────────────────
   norios.at — NORI marketing site stylesheet
   PROMPT-ID: NORI-DEV-NORIOS-WEBSITE-MARKETING-DESIGN-RETRY-001
   Palette: white / very-light grey base, dark slate text,
            light-blue (#6aa6ff) accent, soft pastel tints.
   ───────────────────────────────────────────────────────────────── */

:root {
  --color-bg:           #fafbfc;
  --color-bg-soft:      #f3f6fb;
  --color-bg-card:      #ffffff;
  --color-ink:          #0f172a;
  --color-ink-soft:     #1f2a44;
  --color-mute:         #5b6478;
  --color-mute-2:       #94a3b8;
  --color-line:         #e6ebf2;
  --color-accent:       #6aa6ff;
  --color-accent-strong:#3079f0;
  --color-accent-soft:  #e9f1ff;
  --color-dark:         #0f172a;
  --color-dark-soft:    #19223a;
  --color-pastel-1:     #eef2ff;
  --color-pastel-2:     #ecfeff;

  --radius-sm: 4px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .04),
               0 2px 6px rgba(15, 23, 42, .04);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, .06),
               0 8px 24px rgba(15, 23, 42, .04);

  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI',
               'Inter', Roboto, Helvetica, Arial, sans-serif;
}

/* ── Reset ───────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }

html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-ink);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

ul { list-style: none; }

::selection { background: var(--color-accent-soft); color: var(--color-ink); }

/* skip-link for a11y */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
}
.skip-link:focus {
  left: 16px;
  top: 16px;
  padding: 8px 12px;
  background: var(--color-ink);
  color: #fff;
  border-radius: var(--radius-sm);
  z-index: 1000;
}

/* ── Layout ──────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Header ──────────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 251, 252, .92);
  backdrop-filter: saturate(140%) blur(8px);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--color-line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 1.5px;
}
.brand-mark { flex: 0 0 auto; }
.brand-text {
  font-size: 18px;
  color: var(--color-ink);
}
.brand-text-os {
  margin-left: 4px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 2px;
  color: var(--color-mute-2);
}

.site-nav ul {
  display: flex;
  gap: 28px;
  align-items: center;
}
.site-nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-mute);
  padding: 6px 0;
  transition: color .2s ease;
}
.site-nav a:hover { color: var(--color-ink); }
.site-nav .nav-cta {
  background: var(--color-ink);
  color: #fff;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
}
.site-nav .nav-cta:hover { background: var(--color-accent-strong); }

@media (max-width: 720px) {
  .site-nav ul { gap: 14px; }
  .site-nav a { font-size: 13px; }
  .site-nav li:nth-child(-n+3) { display: none; }
  /* mobile: only "Über uns" + Kontakt visible to keep header clean */
  .site-nav li:nth-child(4) { display: none; }
}

/* ── Common section bits ─────────────────────────────────────── */
.section {
  padding: 96px 0;
}
.section + .section { border-top: 1px solid var(--color-line); }

.section-light { background: var(--color-bg); }
.section-dark {
  background: var(--color-dark);
  color: #e6ebf2;
}
.section-dark .section-lede,
.section-dark p { color: #b6c0d4; }
.section-dark h2,
.section-dark h3 { color: #f4f6fa; }

.section-tech {
  background: linear-gradient(180deg, var(--color-bg) 0%,
                                       var(--color-bg-soft) 100%);
}

.section-cta {
  background:
    radial-gradient(1200px 400px at 50% -10%,
                    rgba(106, 166, 255, .25), transparent 60%),
    linear-gradient(180deg, #0f172a 0%, #19223a 100%);
  color: #e6ebf2;
}
.section-cta h2,
.section-cta .eyebrow-light { color: #f4f6fa; }
.section-cta .section-lede-light { color: #b6c0d4; }

.eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-accent-strong);
  margin-bottom: 14px;
}
.eyebrow-light { color: var(--color-accent); }

h1, h2, h3 {
  color: var(--color-ink);
  line-height: 1.15;
  letter-spacing: -0.01em;
}
h1 {
  font-size: clamp(34px, 5vw, 56px);
  font-weight: 700;
  margin-bottom: 18px;
}
h1 .hl {
  background: linear-gradient(180deg, transparent 60%, var(--color-accent-soft) 60%);
  padding: 0 4px;
}
h2 {
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 700;
  margin-bottom: 18px;
}
h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.lede,
.section-lede {
  font-size: clamp(16px, 1.4vw, 18px);
  color: var(--color-mute);
  max-width: 720px;
  margin-bottom: 32px;
}
.section-lede-light { color: #b6c0d4; }

/* ── Buttons ─────────────────────────────────────────────────── */
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 22px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: transform .15s ease, background .2s ease,
              box-shadow .2s ease, border-color .2s ease;
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-ink);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
  background: var(--color-accent-strong);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-ghost {
  background: transparent;
  border-color: var(--color-line);
  color: var(--color-ink);
}
.btn-ghost:hover {
  border-color: var(--color-ink);
  transform: translateY(-1px);
}

.section-cta .btn-ghost {
  color: #e6ebf2;
  border-color: rgba(255, 255, 255, .25);
}
.section-cta .btn-ghost:hover { border-color: #fff; }

/* ── Hero ────────────────────────────────────────────────────── */
.hero {
  padding: 96px 0 80px;
  background:
    radial-gradient(900px 320px at 80% 0%,
                    rgba(106, 166, 255, .18), transparent 60%),
    radial-gradient(700px 260px at 10% 10%,
                    rgba(236, 254, 255, .8), transparent 60%),
    linear-gradient(180deg, #ffffff 0%, var(--color-bg) 100%);
}
.hero-inner {
  max-width: 880px;
  margin: 0 auto;
  text-align: left;
  padding-bottom: 40px;
}
.hero-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 32px;
}
.hero-stack li {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-mute);
  background: var(--color-bg-card);
  border: 1px solid var(--color-line);
  padding: 8px 12px;
  border-radius: 999px;
}

/* System-diagram card under the hero */
.system-diagram {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: center;
  gap: 16px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 22px 24px;
  box-shadow: var(--shadow-sm);
  margin-top: 48px;
}
.sd-card {
  border-radius: var(--radius-md);
  padding: 14px 16px;
  background: var(--color-pastel-1);
  border: 1px solid var(--color-line);
  text-align: center;
}
.sd-portal { background: var(--color-pastel-2); }
.sd-core   { background: var(--color-pastel-1); }
.sd-agent  { background: var(--color-accent-soft); }
.sd-label  {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-ink);
}
.sd-sub {
  font-size: 12px;
  margin-top: 4px;
  color: var(--color-mute);
}
.sd-line {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent,
                               var(--color-accent) 30%,
                               var(--color-accent) 70%,
                               transparent);
}

@media (max-width: 720px) {
  .system-diagram {
    grid-template-columns: 1fr;
  }
  .sd-line {
    width: 1px;
    height: 24px;
    background: linear-gradient(180deg, transparent,
                                 var(--color-accent) 30%,
                                 var(--color-accent) 70%,
                                 transparent);
    margin: 0 auto;
  }
}

/* ── Benefits grid ───────────────────────────────────────────── */
.benefits {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
  margin-top: 36px;
}
.benefits li {
  background: var(--color-bg-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 22px 22px 20px;
  box-shadow: var(--shadow-sm);
  transition: transform .2s ease, box-shadow .2s ease,
              border-color .2s ease;
}
.benefits li:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: #d6deea;
}
.benefit-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--color-accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}
.benefit-icon svg {
  width: 22px; height: 22px;
}
.benefits p {
  color: var(--color-mute);
  font-size: 14.5px;
  line-height: 1.55;
}

/* ── Product grid (dark section) ─────────────────────────────── */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 36px;
}
.product-card {
  background: var(--color-dark-soft);
  border: 1px solid #2a3554;
  border-radius: var(--radius-md);
  padding: 22px;
  transition: transform .2s ease, border-color .2s ease,
              background .2s ease;
}
.product-card:hover {
  transform: translateY(-2px);
  border-color: var(--color-accent);
  background: #1d273f;
}
.product-card h3 {
  color: #f4f6fa;
  font-size: 17px;
  letter-spacing: .02em;
}
.product-card p {
  color: #b6c0d4;
  font-size: 14.5px;
  margin-top: 6px;
}

/* ── Solutions grid ──────────────────────────────────────────── */
.solution-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
  margin-top: 28px;
}
.solution-grid li {
  background: var(--color-bg-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 18px 18px 16px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-ink);
  box-shadow: var(--shadow-sm);
  transition: transform .2s ease, border-color .2s ease;
}
.solution-grid li:hover {
  transform: translateY(-2px);
  border-color: var(--color-accent);
}
.solution-grid small {
  display: block;
  font-size: 13px;
  font-weight: 400;
  color: var(--color-mute);
  margin-top: 4px;
}
.sol-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  background: var(--color-accent-soft);
  color: var(--color-accent-strong);
  padding: 3px 8px;
  border-radius: 999px;
  margin-right: 8px;
  vertical-align: middle;
}

/* ── Technik section ─────────────────────────────────────────── */
.tech-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 1fr);
  gap: 56px;
  align-items: center;
}
.tech-text .section-lede { margin-bottom: 24px; }
.tech-list {
  display: grid;
  gap: 12px;
  margin-top: 6px;
}
.tech-list li {
  position: relative;
  padding-left: 24px;
  color: var(--color-mute);
  font-size: 15px;
  line-height: 1.55;
}
.tech-list li::before {
  content: '';
  position: absolute;
  left: 0; top: 8px;
  width: 10px; height: 10px;
  background: var(--color-accent);
  border-radius: 2px;
  transform: rotate(45deg);
}
.tech-list strong { color: var(--color-ink); }

.tech-arch {
  display: grid;
  gap: 0;
  background: var(--color-bg-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 14px;
  box-shadow: var(--shadow-sm);
}
.arch-layer {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  padding: 18px 18px;
  border-radius: var(--radius-md);
}
.arch-portal { background: var(--color-pastel-2); }
.arch-core   { background: var(--color-pastel-1); }
.arch-agent  { background: var(--color-accent-soft); }
.arch-title {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-ink);
}
.arch-sub {
  font-size: 13px;
  color: var(--color-mute);
}
.arch-divider {
  height: 18px;
  width: 1px;
  background: linear-gradient(180deg, transparent,
                               var(--color-accent), transparent);
  margin: 4px auto;
}

@media (max-width: 860px) {
  .tech-inner {
    grid-template-columns: 1fr;
    gap: 36px;
  }
}

/* ── Über uns ───────────────────────────────────────────────── */
.ueber-inner { max-width: 880px; margin: 0 auto; }
.ueber-facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin-top: 28px;
}
.ueber-facts li {
  background: var(--color-bg-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  font-size: 14px;
  color: var(--color-mute);
}
.ueber-facts li span {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-accent-strong);
  margin-bottom: 4px;
}

/* ── Kontakt / CTA ───────────────────────────────────────────── */
.kontakt-inner {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}
.kontakt-inner .cta-row { justify-content: center; }
.kontakt-note {
  margin-top: 28px;
  font-size: 13px;
  color: #93a1bd;
}
.kontakt-note small {
  display: block;
  font-size: 12px;
  margin-top: 6px;
  color: #7c8aa5;
}

/* ── Footer ──────────────────────────────────────────────────── */
.site-footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-line);
  padding: 32px 0 40px;
  color: var(--color-mute);
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 24px;
  align-items: center;
}
.footer-brand small {
  display: block;
  font-size: 12px;
  color: var(--color-mute-2);
  margin-top: 4px;
  letter-spacing: 0.02em;
}
.footer-nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  justify-content: center;
}
.footer-nav a {
  font-size: 13px;
  color: var(--color-mute);
  transition: color .2s ease;
}
.footer-nav a:hover { color: var(--color-ink); }
.footer-legal {
  text-align: right;
  font-size: 12px;
  color: var(--color-mute-2);
}

@media (max-width: 720px) {
  .footer-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .footer-legal { text-align: center; }
}

/* ── Reduced motion ──────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
  html { scroll-behavior: auto; }
}