/* =========================================
   POLYDUO / SIGNPOINT — Corporate Identity
   Design tokens & base styles
   ========================================= */

/* ── Self-hosted fonts (DSGVO-konform, kein Google-Server-Kontakt) ── */
@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url('fonts/space-grotesk-latin.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: 'Geist Mono';
  font-style: normal;
  font-weight: 400 500;
  font-display: swap;
  src: url('fonts/geist-mono-latin.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;
}

:root {
  --sp-blue:       #0098D9;
  --sp-blue-deep:  #006FA6;
  --sp-navy:       #0A1F3D;
  --sp-ink:        #0B0E14;

  --bg:        #F2F3F5;
  --bg-card:   #FFFFFF;
  --bg-elev:   #E8EAEE;
  --line:      #D8DBE2;
  --line-soft: #E4E6EC;
  --mute:      #545B68;
  --mute-2:    #8A909C;

  --accent:    #E85D2C;
  --accent-ink:#7C2E11;

  --f-display: "Space Grotesk", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --f-text:    "Space Grotesk", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --f-mono:    "Geist Mono", "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --gutter: clamp(20px, 3vw, 56px);
  --maxw: 1440px;
  --radius: 14px;
  --radius-sm: 8px;
}

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

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--sp-ink);
  font-family: var(--f-text);
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body { overflow-x: hidden; }
img { max-width: 100%; display: block; }
button { font: inherit; cursor: pointer; }
a { color: inherit; text-decoration: none; }

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.hr { height: 1px; background: var(--line); border: 0; margin: 0; }

.mono {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mute);
}

.display {
  font-family: var(--f-display);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 0.95;
}

.eyebrow {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sp-blue-deep);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.eyebrow::before {
  content: "";
  display: inline-block;
  width: 8px; height: 8px;
  background: var(--sp-blue);
  border-radius: 1px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 500;
  font-size: 14px;
  letter-spacing: -0.01em;
  transition: all 180ms ease;
  background: transparent;
  color: var(--sp-ink);
}
.btn-primary { background: var(--sp-ink); color: #fff; }
.btn-primary:hover { background: var(--sp-blue); transform: translateY(-1px); }
.btn-ghost { background: transparent; border-color: var(--line); color: var(--sp-ink); }
.btn-ghost:hover { border-color: var(--sp-ink); background: var(--bg-card); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { transform: translateY(-1px); filter: brightness(1.05); }
.btn .arrow { width: 16px; height: 16px; transition: transform 180ms ease; }
.btn:hover .arrow { transform: translateX(3px); }

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  transition: all 180ms ease;
}
.card:hover { border-color: var(--sp-blue); }

/* Placeholders */
.ph {
  position: relative;
  background: var(--bg-elev);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--mute);
}
.ph::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(135deg, transparent 0 14px, rgba(10,31,61,0.04) 14px 15px);
}
.ph .ph-label {
  position: relative;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: rgba(255,255,255,0.85);
  border: 1px solid var(--line-soft);
  padding: 6px 10px;
  border-radius: 6px;
}

/* Sections */
.section { padding: clamp(80px, 10vw, 160px) 0; }
.section-tight { padding: clamp(56px, 7vw, 100px) 0; }

.section-head {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: end;
  margin-bottom: 56px;
}
@media (max-width: 820px) {
  .section-head { grid-template-columns: 1fr; gap: 24px; margin-bottom: 36px; }
}
.section-head h2 {
  margin: 16px 0 0;
  font-family: var(--f-display);
  font-size: clamp(44px, 6.5vw, 88px);
  line-height: 0.95;
  letter-spacing: -0.035em;
  font-weight: 500;
  text-wrap: pretty;
}

/* Utilities */
.row { display: flex; }
.col { display: flex; flex-direction: column; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.gap-24 { gap: 24px; }
.gap-32 { gap: 32px; }

::selection { background: var(--sp-blue); color: #fff; }

/* Mobile nav */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--sp-ink);
  z-index: 200;
  flex-direction: column;
  padding: 80px 32px 48px;
  gap: 8px;
}
.mobile-nav.open { display: flex; }
.mobile-nav a, .mobile-nav button {
  font-family: var(--f-display);
  font-size: clamp(32px, 7vw, 52px);
  font-weight: 500;
  letter-spacing: -0.03em;
  color: #fff;
  background: none;
  border: none;
  text-align: left;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  cursor: pointer;
}
.mobile-nav a:hover, .mobile-nav button:hover { color: var(--sp-blue); }
.mobile-close {
  position: absolute;
  top: 20px;
  right: 24px;
  background: none;
  border: none;
  color: #fff;
  font-size: 32px;
  cursor: pointer;
  padding: 8px;
}

/* Hamburger */
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--sp-ink);
  transition: all 180ms;
}
@media (max-width: 900px) {
  .hamburger { display: flex; }
  .desktop-nav { display: none !important; }
  .utility-bar-right { display: none !important; }
}
@media (max-width: 700px) {
  .utility-bar { display: none; }
  .hero-grid { grid-template-columns: 1fr !important; }
  .hero-ctas { justify-content: flex-start !important; }
  .kpi-grid { grid-template-columns: 1fr 1fr !important; }
  .services-grid { grid-template-columns: 1fr !important; }
  .services-detail { display: none !important; }
  .showcase-grid { grid-template-columns: 1fr !important; }
  .showcase-grid > * { grid-column: span 1 !important; }
  .process-grid { grid-template-columns: 1fr 1fr !important; }
  .about-grid { grid-template-columns: 1fr !important; }
  .anfrage-grid { grid-template-columns: 1fr !important; }
  .anfrage-left-border { display: none !important; }
  .footer-grid { grid-template-columns: 1fr 1fr !important; }
  .materials-row { grid-template-columns: 44px 1fr 1fr !important; }
  .materials-row .mat-group, .materials-row .mat-arrow { display: none; }
}

/* Marquee animation */
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-33.333%); }
}

/* Form inputs */
.form-input {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 10px;
  padding: 12px 14px;
  color: #fff;
  font-family: var(--f-text);
  font-size: 15px;
  outline: none;
  width: 100%;
  transition: border-color 180ms;
}
.form-input:focus { border-color: #29A8E0; }
.form-input::placeholder { color: rgba(255,255,255,0.4); }

/* Pill tag */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--mute);
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* Progress bar steps */
.step-bar {
  height: 3px;
  flex: 1;
  background: rgba(255,255,255,0.15);
  transition: background 300ms;
}
.step-bar.active { background: #29A8E0; }

/* Choice button */
.choice-btn {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.2);
  padding: 16px 18px;
  border-radius: 12px;
  text-align: left;
  font-family: var(--f-display);
  font-size: 16px;
  font-weight: 500;
  transition: all 160ms;
  cursor: pointer;
}
.choice-btn.selected {
  background: #29A8E0;
  color: var(--sp-ink);
  border-color: #29A8E0;
}
.choice-btn-pill {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.2);
  padding: 10px 14px;
  border-radius: 999px;
  font-size: 13px;
  transition: all 160ms;
  cursor: pointer;
}
.choice-btn-pill.selected {
  background: #29A8E0;
  color: var(--sp-ink);
  border-color: #29A8E0;
}

/* Success state */
.form-success {
  display: none;
  text-align: center;
  padding: 48px 24px;
}
.form-success.visible { display: block; }
.form-steps.hidden { display: none; }