/* ===========================
   mobile.css – bis 899px
   Zeitlos, ruhig, klassisch
   =========================== */

/* Grundlayout & Typografie
   ------------------------ */

:root {
  --bg-page: #f5f5f5;
  --bg-surface: #ffffff;
  --bg-muted: #f0f0f0;

  --border-subtle: #e0e0e0;
  --border-strong: #cfcfcf;

  --text-main: #222222;
  --text-muted: #666666;
  --text-soft: #888888;

  --accent: #4b5563;
  --accent-soft: #e3e6ea;

  --radius-small: 4px;
  --radius-medium: 6px;
  --radius-large: 8px;

  --shadow-soft: 0 8px 18px rgba(0, 0, 0, 0.04);

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--bg-page);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.6;
}

/* Links */

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Basis-Struktur
   -------------- */

main {
  padding-bottom: 3rem;
}

.container {
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ===========================
   HEADER – Mobile (bis 899px)
   =========================== */

.site-topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background-color: #ffffff;
  border-bottom: 1px solid var(--border-subtle);
  transform: translateY(0);
  transition: transform 0.18s ease-out;
}

/* optional: für Scroll-Hide .is-hidden vom JS */
.site-topbar.is-hidden {
  transform: translateY(-100%);
}

.topbar-inner {
  min-height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.25rem 1.1rem;
}

/* Platz nach oben für fixed Header */
body {
  padding-top: 52px;
}

/* Brand */

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-main);
}

.brand-text {
  white-space: nowrap;
}

.brand-mark,
.brand-mark.small {
  display: inline-flex;
  width: 16px;
  height: 16px;
  border-radius: 999px;
  border: 1px solid var(--accent);
  background: radial-gradient(circle at 30% 30%, var(--accent-soft), #ffffff);
}

/* Burger-Button */

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  background-color: #ffffff;
  padding: 0;
  cursor: pointer;
}

/* Icon-Wechsel (Menu ↔ X) */

.nav-toggle .icon-close {
  display: none;
}

.site-topbar.nav-open .nav-toggle .icon-menu {
  display: none;
}

.site-topbar.nav-open .nav-toggle .icon-close {
  display: inline;
}

/* Mobile-Dropdown mit Slide/Fade */

.nav {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;

  display: flex;
  flex-direction: column;
  gap: 0;

  padding: 0 1.25rem;
  background-color: #ffffff;
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.06);

  max-height: 0;
  opacity: 0;
  transform: translateY(-4px);
  overflow: hidden;
  pointer-events: none;
  transition:
    max-height 0.22s ease-out,
    opacity 0.2s ease-out,
    transform 0.2s ease-out;
}

/* wenn .open auf .nav → sichtbar mit Animation */
.nav.open {
  max-height: 320px; /* reicht für deine Links + Button */
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.nav a {
  padding: 0.5rem 0;
  font-size: 0.88rem;
  color: var(--text-muted);
  text-decoration: none;
}

.nav a:hover {
  color: var(--accent);
}

/* Kontakt-Button im Dropdown */

.nav .btn.small {
  margin: 0.4rem 0 0.8rem;
  align-self: flex-start;
  font-size: 0.8rem;
  padding: 0.35rem 0.95rem;
}

/* WICHTIG: Nur bis 899px – ab 900px macht desktop.css den Header wieder „normal“ */
@media (min-width: 900px) {
  .site-topbar {
    position: sticky;
    transform: none;
  }
  body {
    padding-top: 0;
  }
}


/* Buttons allgemein
   ----------------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  border-radius: 999px;
  padding: 0.55rem 1.4rem;
  font-size: 0.92rem;
  border: 1px solid transparent;
  cursor: pointer;
  background-color: transparent;
  color: var(--accent);
  text-decoration: none;
  transition:
    background-color 0.15s ease,
    color 0.15s ease,
    border-color 0.15s ease,
    box-shadow 0.15s ease;
}

.btn.primary {
  background-color: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
  box-shadow: 0 4px 10px rgba(15, 23, 42, 0.16);
}

.btn.primary:hover {
  text-decoration: none;
}

.btn.plain {
  background-color: transparent;
  border-color: var(--border-subtle);
  color: var(--text-main);
}

.btn.plain:hover {
  background-color: #ffffff;
  box-shadow: var(--shadow-soft);
  text-decoration: none;
}

.btn.ghost {
  background-color: transparent;
  border-color: var(--border-subtle);
  color: var(--text-main);
}

/* Page Intro (Hero)
   ----------------- */

.page-intro {
  padding: 2.3rem 0 2.7rem;
  border-bottom: 1px solid var(--border-subtle);
  background: linear-gradient(to bottom, #ffffff 0%, #f8f8f8 100%);
}

.page-intro-inner {
  display: block;
}

.intro-text {
  max-width: 100%;
}

.intro-eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.75rem;
  color: var(--text-soft);
  margin: 0 0 0.4rem;
}

.intro-title {
  font-size: 1.8rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin: 0 0 0.35rem;
}

.intro-subtitle {
  margin: 0 0 0.6rem;
  color: var(--text-muted);
  font-size: 0.98rem;
}

.intro-meta {
  margin: 0 0 1.2rem;
  color: var(--text-soft);
  font-size: 0.9rem;
}

.intro-actions {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  margin-top: 1.4rem;
  margin-bottom: 1.8rem;
}

/* Intro-Rechte Spalte unterhalb einspaltig */

.intro-aside {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1rem;
}

.info-block {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-large);
  padding: 1.1rem 1.15rem 1.1rem;
  box-shadow: var(--shadow-soft);
}

.info-block-muted {
  background-color: var(--bg-muted);
  box-shadow: none;
}

.info-title,
.info-subtitle {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin: 0 0 0.7rem;
  font-size: 0.95rem;
  font-weight: 500;
}

.info-list {
  margin: 0;
  padding-left: 1.1rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.info-list li {
  margin-bottom: 0.3rem;
}

/* Abschnitte allgemein
   -------------------- */

.section {
  padding: 2.3rem 0;
}

.section-bordered {
  padding: 2.3rem 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  background-color: #ffffff;
}

.section-cta {
  padding: 2.5rem 0 2.3rem;
  border-top: 1px solid var(--border-subtle);
  background: linear-gradient(to bottom, #f8f8f8 0%, #f2f2f2 100%);
}

.section-inner,
.section-inner-compact {
  max-width: 100%;
  margin: 0 auto;
}

.section-header {
  margin-bottom: 1.4rem;
}

.section-header-inline {
  display: block;
}

.section-header h2 {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 1.25rem;
  font-weight: 500;
  margin: 0 0 0.25rem;
}

.section-intro {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Textgitter / Spalten → einspaltig */

.section-grid {
  display: block;
}

.section-column {
  font-size: 0.95rem;
  color: var(--text-main);
}

.section-column + .section-column,
.section-column-emphasis {
  margin-top: 1.4rem;
}

.section-column-emphasis {
  background-color: var(--bg-surface);
  border-radius: var(--radius-large);
  border: 1px solid var(--border-subtle);
  padding: 1.3rem 1.2rem 1.2rem;
  box-shadow: var(--shadow-soft);
}

/* Listen */

.plain-list {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.plain-list li {
  position: relative;
  padding-left: 0.8rem;
  margin-bottom: 0.3rem;
}

.plain-list li::before {
  content: "–";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--text-soft);
}

/* ===========================
   Mobile-Tabs (Dropdown)
   =========================== */

.section-switcher {
  margin-bottom: 1.3rem;
}

.section-switcher label {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-soft);
  margin-bottom: 0.3rem;
}

.section-switcher select {
  width: 100%;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  padding: 0.45rem 0.9rem;
  font: inherit;
  background-color: #ffffff;
  color: var(--text-main);
}

/* ===========================
   Leistungsschwerpunkte – Cards
   → Horizontal scroll / wischbar
   =========================== */

.cards-grid {
  display: flex;
  gap: 1rem;
  overflow-x: auto;
  padding-bottom: 0.4rem;
  margin: 0 -1.25rem;
  padding-left: 1.25rem;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.service-card,
.service-card * {
  word-wrap: break-word;
  overflow-wrap: break-word;
  hyphens: auto;
}

.service-card {
  background-color: var(--bg-surface);
  border-radius: var(--radius-large);
  border: 1px solid var(--border-subtle);
  padding: 1.3rem 1.2rem 1.1rem;
  box-shadow: var(--shadow-soft);
  font-size: 0.95rem;
  min-width: 80%;
  max-width: 80%;
  scroll-snap-align: start;
}

.service-card h3 {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin: 0 0 0.7rem;
  font-size: 0.98rem;
}

/* ===========================
   Branchenerfahrung / Kernkompetenzen
   =========================== */

.pill-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-bottom: 1.3rem;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  background-color: #ffffff;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ===========================
   Referenzen (Startseite-Block)
   → ebenfalls horizontal scroll
   =========================== */

.reference-list {
  display: flex;
  gap: 1rem;
  overflow-x: auto;
  margin: 0 -1.25rem;
  padding: 0 1.25rem 0.4rem;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.reference-item {
  background-color: var(--bg-surface);
  border-radius: var(--radius-large);
  border: 1px solid var(--border-subtle);
  padding: 1.15rem 1.1rem 1rem;
  box-shadow: var(--shadow-soft);
  font-size: 0.92rem;
  min-width: 80%;
  max-width: 80%;
  scroll-snap-align: start;
}

/* CTA */

.section-cta .cta-content {
  text-align: left;
}

.section-cta h2 {
  margin: 0 0 0.5rem;
  font-size: 1.25rem;
  font-weight: 500;
}

.section-cta p {
  margin: 0 0 1rem;
  font-size: 0.92rem;
  color: var(--text-muted);
}

/* ===========================
   Unterseiten: Kontakt / Referenzen
   =========================== */

main.section > .container h1 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.6rem;
  font-weight: 500;
  margin: 0 0 0.4rem;
}

main.section > .container h1 i[data-lucide] {
  width: 1.1rem;
  height: 1.1rem;
  color: var(--accent);
}

.lead {
  margin: 0 0 1.4rem;
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* Kontaktformular */

.container.narrow {
  max-width: 100%;
}

.form {
  margin-top: 1.7rem;
  background-color: var(--bg-surface);
  border-radius: var(--radius-large);
  border: 1px solid var(--border-subtle);
  padding: 1.5rem 1.25rem 1.4rem;
  box-shadow: var(--shadow-soft);
}

.form-row {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-bottom: 1rem;
}

.form-row label {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-soft);
}

.form-row input,
.form-row textarea {
  border-radius: 6px;
  border: 1px solid var(--border-subtle);
  padding: 0.55rem 0.7rem;
  font: inherit;
  color: var(--text-main);
  background-color: #ffffff;
}

.form-row input::placeholder,
.form-row textarea::placeholder {
  color: #b0b0b0;
}

.form-actions {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  align-items: stretch;
}

.form-actions .btn.ghost {
  justify-content: center;
}

/* Referenzen-Seite – horizontale Cards */

.projects-grid {
  margin-top: 1.8rem;
  display: flex;
  gap: 1rem;
  overflow-x: auto;
  margin-left: -1.25rem;
  margin-right: -1.25rem;
  padding: 0 1.25rem 0.4rem;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.project-card {
  display: flex;
  flex-direction: column;
  background-color: var(--bg-surface);
  border-radius: var(--radius-large);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  text-decoration: none;
  color: inherit;
  min-width: 80%;
  max-width: 80%;
  scroll-snap-align: start;
}

.project-media {
  height: 130px;
  background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 50%, #f3f4f6 100%);
}

.project-meta {
  padding: 1rem 1.1rem 0.9rem;
}

.project-meta h3 {
  margin: 0 0 0.2rem;
  font-size: 0.98rem;
}

.project-meta p {
  margin: 0;
  font-size: 0.86rem;
  color: var(--text-muted);
}

/* ===========================
   FOOTER
   =========================== */

.site-footer {
  margin-top: 2rem;
  background-color: #ffffff;
  border-top: 1px solid var(--border-subtle);
}

/* erste Zeile */

.footer-inner {
  padding: 0.9rem 1.25rem 0.8rem;
  font-size: 0.82rem;
  color: var(--text-soft);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  align-items: flex-start;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.footer-brand .brand-mark.small {
  width: 18px;
  height: 18px;
  border-radius: 999px;
  border: 1px solid var(--accent);
  background: radial-gradient(circle at 30% 30%, var(--accent-soft), #ffffff);
}

.footer-nav {
  display: inline-flex;
  gap: 1rem;
}

.footer-nav a {
  font-size: 0.82rem;
  color: var(--text-soft);
}

/* zweite Zeile mit © */

.footer-meta {
  border-top: 1px solid var(--border-subtle);
  background-color: #f9f9f9;
  padding: 0.55rem 0;
}

.footer-meta .container {
  padding: 0 1.25rem;
}

.footer-meta small {
  display: block;
  font-size: 0.78rem;
  color: var(--text-soft);
}

/* Lucide Icons */

i[data-lucide] {
  width: 1em;
  height: 1em;
  display: inline-block;
  line-height: 1;
}

/* ===========================
   HEADER – .site-topbar Mobile
   kompakter & ruhiger
   =========================== */

.site-topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background-color: #ffffff;
  border-bottom: 1px solid var(--border-subtle);
  transform: translateY(0);
  transition: transform 0.18s ease-out;
}

/* beim Runterscrollen wird diese Klasse per JS gesetzt */
.site-topbar.is-hidden {
  transform: translateY(-100%);
}

.topbar-inner {
  min-height: 52px;                 /* etwas niedriger */
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.25rem 1.1rem;          /* weniger Padding */
}

/* Offset für festen Header */
body {
  padding-top: 52px;
}

/* Brand / Logo */

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.82rem;               /* kleinere Schrift */
  font-weight: 500;
  letter-spacing: 0.12em;           /* etwas mehr Tracking */
  text-transform: uppercase;
  color: var(--text-main);
}

.brand-text {
  white-space: nowrap;
}

/* kleinerer Punkt */

.brand-mark,
.brand-mark.small {
  display: inline-flex;
  width: 16px;                      /* kleiner als vorher */
  height: 16px;
  border-radius: 999px;
  border: 1px solid var(--accent);
  background: radial-gradient(circle at 30% 30%, var(--accent-soft), #ffffff);
}

/* Burger-Button */
/* ===========================
   Navigation Mobile (Dropdown)
   =========================== */

/* Container in der Topbar */
.topbar-inner {
  min-height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.25rem 1.1rem;
}

/* Burger-Button – bleibt wie gehabt */
.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  background-color: #ffffff;
  padding: 0;
  cursor: pointer;
}

/* Menü ist standardmäßig zu */
.nav {
  display: none;
  position: absolute;
  top: 100%;                 /* direkt unter der Topbar */
  left: 0;
  right: 0;
  padding: 0.5rem 1.25rem 0.8rem;
  background-color: #ffffff;
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.06);
  flex-direction: column;
  gap: 0;
}

/* .open wird per JS auf .nav gesetzt → Menü sichtbar */
.nav.open {
  display: flex;
}

.nav a {
  padding: 0.45rem 0;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.nav a:hover {
  color: var(--accent);
  text-decoration: none;
}

/* Kontakt-Button im Dropdown */
.nav .btn.small {
  margin-top: 0.4rem;
  align-self: flex-start;
  font-size: 0.8rem;
  padding: 0.35rem 0.95rem;
}

/* Mobile: Wrapper fixed oben */
#site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  transition: transform 0.22s ease, opacity 0.22s ease;
}

/* gleiche Hide-Klasse wie auf Desktop */
#site-header.hide {
  transform: translateY(-100%);
  opacity: 0;
}

/* Platz für den festen Header schaffen */
body {
  padding-top: 52px; /* an deine tatsächliche Header-Höhe anpassen */
}

/* .site-topbar selbst braucht auf Mobile KEIN position mehr */
.site-topbar {
  background-color: #ffffff;
  border-bottom: 1px solid var(--border-subtle);
}