/* ==========================================================================
   PC / Webdesign Service Gilch – Design System
   Dark Theme + Orange (#f87000) Accent | Mobile-First
   ========================================================================== */

/* --- Custom Properties --- */
:root {
  --color-bg:          #0d0d0d;
  --color-bg-alt:      #141414;
  --color-bg-card:     #1a1a1a;
  --color-bg-input:    #1e1e1e;
  --color-bg-nav:      rgba(10, 10, 10, 0.97);
  --color-bg-footer:   #080808;

  --color-primary:     #f87000;
  --color-primary-hover:#ff8a2a;
  --color-primary-dim: rgba(248, 112, 0, 0.12);

  --color-text:        #d4d4d4;
  --color-heading:     #f0f0f0;
  --color-muted:       #9a9a9a;
  --color-border:      #262626;
  --color-border-hover:#3a3a3a;

  --color-success:     #22c55e;
  --color-error:       #ef4444;

  --font:              -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-mono:         'SF Mono', 'Cascadia Code', 'Consolas', monospace;

  --max-w:             1200px;
  --pad:               1.25rem;
  --radius:            8px;
  --radius-lg:         12px;
  --transition:        0.25s ease;
}

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

html {
  font-size: 100%;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-primary-hover); }
ul, ol { list-style: none; }

h1, h2, h3, h4 {
  color: var(--color-heading);
  font-weight: 700;
  line-height: 1.25;
}
h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.2rem; }
h4 { font-size: 1.05rem; }

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

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad);
}

.section {
  padding: 4rem 0;
}

.section--alt {
  background: var(--color-bg-alt);
}

.section__header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.section__header h2 {
  margin-bottom: 0.75rem;
}

.section__header p {
  color: var(--color-muted);
  max-width: 640px;
  margin: 0 auto;
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--color-bg-nav);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow 0.3s ease;
}
.nav.scrolled {
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.4);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav__logo {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-heading);
  white-space: nowrap;
}
.nav__logo:hover { color: var(--color-heading); }
.nav__logo-accent { color: var(--color-primary); }

.nav__toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav__toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-heading);
  border-radius: 2px;
  transition: var(--transition);
}

.nav__toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle.active span:nth-child(2) { opacity: 0; }
.nav__toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav__menu {
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  background: var(--color-bg-nav);
  border-bottom: 1px solid var(--color-border);
  padding: 1rem 0;
  transform: translateY(-120%);
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  pointer-events: none;
}
.nav__menu.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: all;
}
.nav__menu li { text-align: center; }
.nav__menu li a {
  display: block;
  padding: 0.75rem 1.5rem;
  color: var(--color-text);
  font-weight: 500;
}
.nav__menu li a:hover,
.nav__menu li a.active { color: var(--color-primary); }

.nav__cta-link {
  color: var(--color-primary) !important;
  font-weight: 600 !important;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.8rem;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: var(--font);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
  text-align: center;
}

.btn--primary {
  background: var(--color-primary);
  color: #1a1000;
  border-color: var(--color-primary);
}
.btn--primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: #1a1000;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(248, 112, 0, 0.3);
}

.btn--outline {
  background: transparent;
  color: var(--color-heading);
  border-color: var(--color-border-hover);
}
.btn--outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn--sm {
  padding: 0.55rem 1.2rem;
  font-size: 0.85rem;
}

/* --- Hero --- */
.hero {
  padding: 7rem 0 4rem;
  min-height: 80vh;
  display: flex;
  align-items: center;
}

.hero__banner {
  margin-bottom: 2.5rem;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.hero__banner-img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
}

.hero__content {
  max-width: 720px;
}

.hero h1 {
  margin-bottom: 1.25rem;
}

.hero__accent {
  color: var(--color-primary);
}

.hero p {
  font-size: 1.05rem;
  color: var(--color-muted);
  margin-bottom: 2rem;
  max-width: 580px;
}

.hero__btns {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.hero__usps {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
}

.hero__usps li {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.9rem;
  color: var(--color-muted);
}

.hero__usps li::before {
  content: '✓';
  color: var(--color-primary);
  font-weight: 700;
}

/* --- Service Cards --- */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.service-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: border-color var(--transition), transform var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 3px;
  height: 100%;
  background: var(--color-primary);
  opacity: 0;
  transition: opacity var(--transition);
}
.service-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-2px);
}
.service-card:hover::before { opacity: 1; }

.service-card h3 {
  margin-bottom: 0.75rem;
}

.service-card p {
  color: var(--color-muted);
  font-size: 0.95rem;
}

/* --- Process Steps --- */
.steps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.step {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}

.step__num {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-dim);
  color: var(--color-primary);
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: 50%;
}

.step h3 { margin-bottom: 0.35rem; }
.step p { color: var(--color-muted); font-size: 0.95rem; }

/* --- Why Us / Features --- */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.feature {
  text-align: center;
  padding: 1.5rem;
}

.feature__icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-dim);
  border-radius: 50%;
  color: var(--color-primary);
  font-size: 1.5rem;
}

.feature h3 { margin-bottom: 0.5rem; }
.feature p { color: var(--color-muted); font-size: 0.95rem; }

/* --- FAQ Accordion --- */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.faq-list details {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.faq-list summary {
  padding: 1rem 1.25rem;
  cursor: pointer;
  font-weight: 600;
  color: var(--color-heading);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  transition: color var(--transition);
}
.faq-list summary:hover { color: var(--color-primary); }
.faq-list summary::marker,
.faq-list summary::-webkit-details-marker { display: none; }

.faq-list summary::after {
  content: '+';
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--color-muted);
  flex-shrink: 0;
  transition: transform var(--transition);
}
.faq-list details[open] summary::after {
  content: '−';
  color: var(--color-primary);
}
.faq-list details[open] summary {
  color: var(--color-primary);
}

.faq-list .faq__answer {
  padding: 0 1.25rem 1.25rem;
  color: var(--color-muted);
  line-height: 1.7;
}

/* --- CTA Banner --- */
.cta-banner {
  text-align: center;
  padding: 3.5rem 1.5rem;
  background: linear-gradient(135deg, rgba(248, 112, 0, 0.08), rgba(248, 112, 0, 0.02));
  border: 1px solid rgba(248, 112, 0, 0.15);
  border-radius: var(--radius-lg);
}

.cta-banner h2 { margin-bottom: 0.75rem; }
.cta-banner p { color: var(--color-muted); margin-bottom: 1.5rem; }

/* --- Contact Section --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.4rem;
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--color-heading);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--color-bg-input);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text);
  font-family: var(--font);
  font-size: 0.95rem;
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(248, 112, 0, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #555;
}

.form-privacy {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.85rem;
  color: var(--color-muted);
  line-height: 1.5;
  margin-bottom: 1.5rem;
}

.form-privacy input[type="checkbox"] {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--color-primary);
}

.hp-field { position: absolute; left: -9999px; opacity: 0; }

/* --- Google Maps Consent --- */
.maps-consent {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  min-height: 300px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
  cursor: pointer;
  transition: border-color var(--transition);
}
.maps-consent:hover {
  border-color: var(--color-primary);
}
.maps-consent p {
  color: var(--color-muted);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}
.maps-consent .btn { pointer-events: none; }

.maps-consent iframe {
  width: 100%;
  height: 350px;
  border: 0;
  border-radius: var(--radius);
}

/* --- Referenzen Grid --- */
.ref-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.ref-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition);
}
.ref-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-3px);
}

.ref-card__img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  background: var(--color-bg-alt);
}

.ref-card__body {
  padding: 1.25rem;
}

.ref-card__body h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.ref-card__body .ref-domain {
  color: var(--color-muted);
  font-size: 0.85rem;
  margin-bottom: 0.75rem;
}

/* --- Leistungen Page --- */
.leistung-block {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--color-border);
}

.leistung-block:last-child { border-bottom: none; }

.leistung-block__text h2 { margin-bottom: 1rem; }

.leistung-block h3 {
  font-size: 1.3rem;
  margin: 1.5rem 0 0.75rem;
  color: var(--color-primary);
}

.leistung-block p {
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: 0.75rem;
}

.leistung-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 1rem;
}

.leistung-list li {
  padding-left: 1.5rem;
  position: relative;
  color: var(--color-text);
}

.leistung-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6rem;
  width: 8px;
  height: 8px;
  background: var(--color-primary);
  border-radius: 50%;
}

.leistung-block__image {
  border-radius: var(--radius);
  overflow: hidden;
}

.leistung-block__image img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
}

/* --- Legal Pages --- */
.legal {
  padding: 7rem 0 4rem;
}

.legal h1 {
  margin-bottom: 2rem;
  color: var(--color-primary);
}

.legal h2, .legal h3 {
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.legal p, .legal li {
  margin-bottom: 0.75rem;
  color: var(--color-text);
}

.legal ul {
  list-style: disc;
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

/* --- Footer --- */
.footer {
  background: var(--color-bg-footer);
  border-top: 1px solid var(--color-border);
  padding: 3rem 0 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding-bottom: 2.5rem;
}

.footer__col h3 {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}

.footer__col p,
.footer__col a {
  font-size: 0.9rem;
  color: var(--color-muted);
  line-height: 1.8;
}

.footer__col a:hover { color: var(--color-primary); }

.footer__bottom {
  border-top: 1px solid var(--color-border);
  padding: 1.25rem 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  text-align: center;
}

.footer__bottom p {
  font-size: 0.85rem;
  color: var(--color-muted);
}

.footer__links {
  display: flex;
  gap: 1.5rem;
}
.footer__links a {
  font-size: 0.85rem;
  color: var(--color-muted);
}

/* --- Toast Notification --- */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  padding: 1rem 1.5rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  z-index: 9999;
  transform: translateY(120%);
  opacity: 0;
  transition: all 0.4s ease;
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast--success { background: var(--color-success); color: #fff; }
.toast--error { background: var(--color-error); color: #fff; }

/* --- Page Header (for subpages) --- */
.page-header {
  padding: 7rem 0 2.5rem;
  text-align: center;
}
.page-header h1 { margin-bottom: 0.75rem; }
.page-header p { color: var(--color-muted); max-width: 640px; margin: 0 auto; }

/* --- Animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Skip Link (Accessibility) --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--color-primary);
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  z-index: 10000;
  font-weight: 600;
}
.skip-link:focus { top: 0.5rem; }

/* ==========================================================================
   RESPONSIVE – Tablet (≥768px)
   ========================================================================== */
@media (min-width: 768px) {
  h1 { font-size: 2.5rem; }
  h2 { font-size: 1.75rem; }

  .services-grid   { grid-template-columns: repeat(2, 1fr); }
  .steps-grid       { grid-template-columns: repeat(2, 1fr); }
  .features-grid    { grid-template-columns: repeat(3, 1fr); }
  .ref-grid         { grid-template-columns: repeat(2, 1fr); }
  .contact-grid     { grid-template-columns: 1fr 1fr; }
  .footer__grid     { grid-template-columns: repeat(3, 1fr); }
  .leistung-block--with-image { grid-template-columns: 1fr 1fr; align-items: start; }

  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

/* ==========================================================================
   RESPONSIVE – Desktop (≥1024px)
   ========================================================================== */
@media (min-width: 1024px) {
  h1 { font-size: 3rem; }
  h2 { font-size: 2rem; }

  .hero { min-height: 85vh; padding: 8rem 0 5rem; }
  .hero p { font-size: 1.1rem; }
  .section { padding: 5rem 0; }

  .services-grid { grid-template-columns: repeat(4, 1fr); }
  .ref-grid       { grid-template-columns: repeat(3, 1fr); }
  .steps-grid     { grid-template-columns: repeat(4, 1fr); }

  /* Desktop Navigation */
  .nav__toggle { display: none; }

  .nav__menu {
    position: static;
    transform: none;
    opacity: 1;
    pointer-events: all;
    background: none;
    border: none;
    padding: 0;
    display: flex;
    align-items: center;
    gap: 0.25rem;
  }

  .nav__menu li a {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
  }
}

/* ==========================================================================
   RESPONSIVE – Wide (≥1280px)
   ========================================================================== */
@media (min-width: 1280px) {
  :root { --pad: 2rem; }
  .ref-grid { grid-template-columns: repeat(4, 1fr); }
}