/* ═══════════════════════════════════════
   STÜWE – Apple-Inspired Design System
   ═══════════════════════════════════════ */

:root {
  /* Apple-inspired palette – warm, friendly, clean */
  --blue: #0071e3;
  --blue-hover: #0077ED;
  --blue-dark: #004ba0;
  --blue-soft: #e8f2ff;
  --blue-mist: #f5f9ff;

  --green: #34c759;
  --green-soft: #e8faf0;

  --teal: #5ac8fa;

  --gray-50: #fbfbfd;
  --gray-100: #f5f5f7;
  --gray-200: #e8e8ed;
  --gray-300: #d2d2d7;
  --gray-400: #aeaeb2;
  --gray-500: #86868b;
  --gray-600: #6e6e73;
  --gray-700: #48484a;
  --gray-800: #3a3a3c;
  --gray-900: #1d1d1f;

  --white: #ffffff;
  --bg: #fbfbfd;

  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 28px;
  --radius-xl: 36px;

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.06);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.08);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.1);

  --transition: 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
  --transition-slow: 0.6s cubic-bezier(0.25, 0.1, 0.25, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--gray-900);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
}

.skip-link {
  position: absolute; top: -100px; left: 0;
  background: var(--blue); color: var(--white);
  padding: 0.8rem 1.5rem; z-index: 999;
  transition: top 0.3s;
}
.skip-link:focus { top: 0; }

/* ── TYPOGRAPHY ── */
h1, h2, h3, h4 {
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--gray-900);
}

/* ── NAVIGATION ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(251,251,253,0.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 0.5px solid rgba(0,0,0,0.08);
  transition: var(--transition);
}
nav.scrolled {
  background: rgba(251,251,253,0.92);
  box-shadow: 0 0.5px 0 rgba(0,0,0,0.06);
}
.nav-inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 2rem; height: 52px;
}
.nav-logo {
  display: flex; align-items: center; gap: 0.6rem;
  text-decoration: none; color: var(--gray-900);
  font-weight: 600; font-size: 1.1rem;
}
.logo-mark {
  width: 32px; height: 32px; border-radius: 8px;
  background: linear-gradient(135deg, var(--blue), #00a1f1);
  color: var(--white); display: flex; align-items: center;
  justify-content: center; font-weight: 700; font-size: 0.95rem;
}
.logo-text { letter-spacing: -0.01em; }

.nav-links {
  display: flex; gap: 0; list-style: none;
  align-items: center;
}
.nav-links a {
  text-decoration: none; color: var(--gray-600);
  font-size: 0.82rem; font-weight: 400;
  padding: 0.5rem 1.2rem;
  transition: color var(--transition);
  position: relative;
}
.nav-links a:hover,
.nav-links a.active { color: var(--gray-900); }
.nav-links a.active::after {
  content: ''; position: absolute;
  bottom: -1px; left: 50%; transform: translateX(-50%);
  width: 18px; height: 2px; border-radius: 1px;
  background: var(--blue);
}

.nav-cta {
  background: var(--blue) !important; color: var(--white) !important;
  border-radius: 980px !important; padding: 0.4rem 1.1rem !important;
  font-weight: 400 !important; font-size: 0.82rem !important;
  transition: background var(--transition), transform 0.15s !important;
}
.nav-cta::after { display: none !important; }
.nav-cta:hover {
  background: var(--blue-hover) !important;
  transform: scale(1.02);
}
.nav-cta.active { background: var(--blue-dark) !important; }

.hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 6px;
}
.hamburger span {
  width: 18px; height: 1.5px; background: var(--gray-900);
  border-radius: 2px; transition: var(--transition);
}

/* ── HERO ── */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  justify-content: center; text-align: center;
  padding: 8rem 2rem 6rem;
  background: var(--bg);
  position: relative; overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; pointer-events: none;
}
.hero-bg .orb {
  position: absolute; border-radius: 50%;
  filter: blur(80px); opacity: 0.35;
}
.hero-bg .orb-1 {
  width: 600px; height: 600px;
  background: linear-gradient(135deg, #d4e4ff, #b3d4ff);
  top: -15%; right: -10%;
  animation: orbFloat 25s infinite ease-in-out;
}
.hero-bg .orb-2 {
  width: 500px; height: 500px;
  background: linear-gradient(135deg, #c8f7dc, #b3ecff);
  bottom: -10%; left: -8%;
  animation: orbFloat 20s infinite ease-in-out reverse;
}
.hero-bg .orb-3 {
  width: 300px; height: 300px;
  background: linear-gradient(135deg, #ffe5d0, #ffd4e8);
  top: 50%; left: 45%;
  animation: orbFloat 22s infinite ease-in-out 5s;
}
@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(40px, -30px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

.hero-content {
  position: relative; z-index: 2;
  max-width: 800px; margin: 0 auto;
}
.hero-eyebrow {
  font-size: 1.1rem; font-weight: 500;
  color: var(--blue);
  margin-bottom: 1rem;
  animation: fadeUp 0.8s ease-out;
}
.hero h1 {
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 700; line-height: 1.05;
  letter-spacing: -0.04em;
  margin-bottom: 1.5rem;
  animation: fadeUp 0.8s ease-out 0.1s both;
}
.hero h1 .gradient-text {
  background: linear-gradient(135deg, var(--blue), #5ac8fa, var(--green));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  color: var(--gray-600); font-weight: 400;
  max-width: 580px; margin: 0 auto 2.5rem;
  line-height: 1.5;
  animation: fadeUp 0.8s ease-out 0.2s both;
}
.hero-actions {
  display: flex; gap: 1rem;
  justify-content: center; flex-wrap: wrap;
  animation: fadeUp 0.8s ease-out 0.3s both;
}

.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: inherit; font-size: 1rem; font-weight: 400;
  padding: 0.85rem 2rem; border-radius: 980px;
  text-decoration: none; cursor: pointer;
  transition: all var(--transition);
  border: none;
}
.btn-primary {
  background: var(--blue); color: var(--white);
}
.btn-primary:hover {
  background: var(--blue-hover);
  transform: scale(1.02);
}
.btn-ghost {
  background: transparent; color: var(--blue);
  border: none; padding: 0.85rem 1.5rem;
}
.btn-ghost:hover { text-decoration: underline; }
.btn-ghost svg { transition: transform 0.2s; }
.btn-ghost:hover svg { transform: translateX(3px); }

.btn-outline {
  background: transparent; color: var(--blue);
  border: 1.5px solid var(--blue);
}
.btn-outline:hover {
  background: var(--blue); color: var(--white);
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── SECTION SYSTEM ── */
section { padding: 7rem 2rem; }
.section-narrow { max-width: 980px; margin: 0 auto; }
.section-wide { max-width: 1200px; margin: 0 auto; }

.section-header {
  text-align: center;
  max-width: 680px; margin: 0 auto 4rem;
}
.section-eyebrow {
  font-size: 0.85rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--blue); margin-bottom: 0.75rem;
}
.section-header h2 {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 700; line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}
.section-header p {
  font-size: 1.1rem; color: var(--gray-600);
  line-height: 1.6;
}

.bg-white { background: var(--white); }
.bg-gray { background: var(--gray-100); }

/* ── SERVICE CARDS ── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
.service-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 3rem 2.5rem;
  transition: all var(--transition-slow);
  border: 1px solid transparent;
  position: relative; overflow: hidden;
}
.service-card:hover {
  transform: scale(1.015);
  box-shadow: var(--shadow-lg);
  border-color: var(--gray-200);
}
.service-icon-wrap {
  width: 56px; height: 56px;
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; margin-bottom: 1.5rem;
  transition: transform var(--transition);
}
.service-card:hover .service-icon-wrap { transform: scale(1.1); }

.icon-medical { background: linear-gradient(135deg, #ffe5e5, #ffd4d4); }
.icon-building { background: linear-gradient(135deg, var(--blue-soft), #d4e4ff); }
.icon-glass { background: linear-gradient(135deg, #e5f9ff, #d4f0ff); }
.icon-carpet { background: linear-gradient(135deg, var(--green-soft), #d4f5e0); }

.service-card h3 {
  font-size: 1.35rem; font-weight: 600;
  margin-bottom: 0.75rem; letter-spacing: -0.01em;
}
.service-card p {
  color: var(--gray-600); font-size: 0.95rem; line-height: 1.65;
}
.service-link {
  display: inline-flex; align-items: center; gap: 0.3rem;
  color: var(--blue); font-size: 0.95rem; font-weight: 500;
  text-decoration: none; margin-top: 1.25rem;
  transition: gap var(--transition);
}
.service-link:hover { gap: 0.6rem; }

/* ── FEATURE ROW (Leistungen detail) ── */
.feature-row {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 4rem; align-items: center;
  padding: 5rem 0;
  border-bottom: 1px solid var(--gray-200);
}
.feature-row:last-child { border-bottom: none; }
.feature-row.reverse .feature-visual { order: -1; }

.feature-visual {
  border-radius: var(--radius-xl);
  overflow: hidden; aspect-ratio: 4/3;
  background: var(--gray-100);
  display: flex; align-items: center; justify-content: center;
  position: relative;
}
.feature-visual .feature-icon-large {
  font-size: 5rem; opacity: 0.8;
}
.feature-visual::after {
  content: ''; position: absolute; inset: 0;
  border-radius: var(--radius-xl);
  box-shadow: inset 0 0 0 1px rgba(0,0,0,0.05);
}

.feature-text .feature-tag {
  display: inline-block;
  font-size: 0.75rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--blue); background: var(--blue-soft);
  padding: 0.3rem 0.8rem; border-radius: 980px;
  margin-bottom: 1rem;
}
.feature-text h3 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700; line-height: 1.15;
  letter-spacing: -0.025em;
  margin-bottom: 1rem;
}
.feature-text p {
  color: var(--gray-600); font-size: 1.05rem; line-height: 1.7;
  margin-bottom: 1rem;
}
.feature-checklist {
  list-style: none; margin-top: 1.5rem;
  display: flex; flex-direction: column; gap: 0.75rem;
}
.feature-checklist li {
  display: flex; align-items: center; gap: 0.75rem;
  font-size: 0.95rem; color: var(--gray-700);
}
.check-icon {
  width: 24px; height: 24px; border-radius: 50%;
  background: var(--green-soft); color: var(--green);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.7rem; font-weight: 700; flex-shrink: 0;
}

/* ── STATS BAR ── */
.stats-bar {
  background: var(--gray-900);
  border-radius: var(--radius-xl);
  padding: 3.5rem 3rem;
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 2rem; text-align: center;
  margin: 4rem auto; max-width: 1000px;
}
.stat-item h3 {
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  font-weight: 700; color: var(--white);
  letter-spacing: -0.03em; line-height: 1;
}
.stat-item h3 span { color: var(--blue); }
.stat-item p {
  color: var(--gray-400); font-size: 0.9rem;
  margin-top: 0.4rem; font-weight: 400;
}

/* ── ABOUT PAGE ── */
.about-hero {
  text-align: center; padding: 10rem 2rem 4rem;
}
.about-hero h1 {
  font-size: clamp(2.8rem, 5vw, 4.5rem);
  font-weight: 700; letter-spacing: -0.04em;
  margin-bottom: 1rem;
}
.about-hero p {
  font-size: 1.2rem; color: var(--gray-600);
  max-width: 600px; margin: 0 auto;
}

.about-story {
  max-width: 780px; margin: 0 auto;
  padding: 3rem 2rem;
}
.about-story p {
  font-size: 1.15rem; line-height: 1.85;
  color: var(--gray-700);
  margin-bottom: 1.5rem;
}
.about-story p:first-child::first-letter {
  font-size: 3.5rem; font-weight: 700;
  float: left; margin-right: 0.5rem; margin-top: 0.1rem;
  line-height: 1; color: var(--blue);
}

.values-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.value-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem; text-align: center;
  border: 1px solid var(--gray-200);
  transition: all var(--transition);
}
.value-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}
.value-emoji {
  font-size: 2.5rem; margin-bottom: 1rem;
  display: block;
}
.value-card h3 {
  font-size: 1.15rem; margin-bottom: 0.5rem;
}
.value-card p {
  color: var(--gray-600); font-size: 0.9rem; line-height: 1.6;
}

/* ── CONTACT FORM ── */
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 4rem; align-items: start;
}
.contact-info h3 {
  font-size: 1.3rem; margin-bottom: 2rem;
}
.contact-item {
  display: flex; align-items: flex-start; gap: 1rem;
  margin-bottom: 2rem;
}
.contact-icon-box {
  width: 48px; height: 48px;
  border-radius: var(--radius-sm);
  background: var(--blue-soft);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; flex-shrink: 0;
}
.contact-item-text small {
  display: block; font-size: 0.8rem;
  color: var(--gray-500); margin-bottom: 0.15rem;
}
.contact-item-text a,
.contact-item-text span {
  color: var(--gray-900); text-decoration: none;
  font-weight: 500; font-size: 1.05rem;
}
.contact-item-text a:hover { color: var(--blue); }

.form-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--gray-200);
}
.form-card h3 {
  font-size: 1.25rem; margin-bottom: 0.5rem;
}
.form-card .form-subtitle {
  color: var(--gray-500); font-size: 0.9rem; margin-bottom: 2rem;
}

.form-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1rem;
  margin-bottom: 1rem;
}
.form-group {
  display: flex; flex-direction: column;
  margin-bottom: 1rem;
}
.form-group label {
  font-size: 0.85rem; font-weight: 500;
  color: var(--gray-700); margin-bottom: 0.4rem;
}
.form-group input,
.form-group select,
.form-group textarea {
  font-family: inherit; font-size: 0.95rem;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-sm);
  background: var(--gray-50);
  transition: all var(--transition);
  color: var(--gray-900);
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--blue);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(0,113,227,0.1);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--gray-400); }

.form-privacy {
  display: flex; align-items: flex-start; gap: 0.5rem;
  margin-bottom: 1.5rem; font-size: 0.85rem; color: var(--gray-600);
}
.form-privacy input[type="checkbox"] {
  margin-top: 3px; accent-color: var(--blue);
}

.btn-submit {
  width: 100%; justify-content: center;
  font-size: 1rem; padding: 0.9rem;
}

.form-success {
  background: var(--green-soft);
  border: 1px solid #a3e4b8;
  border-radius: var(--radius-sm);
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.5rem;
  color: #1a7a3a; font-size: 0.95rem;
  display: flex; align-items: center; gap: 0.6rem;
}

/* ── CTA BANNER ── */
.cta-banner {
  background: linear-gradient(135deg, var(--gray-900), #2a2a2e);
  border-radius: var(--radius-xl);
  padding: 5rem 3rem;
  text-align: center;
  max-width: 1000px; margin: 0 auto;
  position: relative; overflow: hidden;
}
.cta-banner::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at top right, rgba(0,113,227,0.15), transparent 60%),
              radial-gradient(ellipse at bottom left, rgba(52,199,89,0.1), transparent 60%);
}
.cta-banner * { position: relative; z-index: 2; }
.cta-banner h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700; color: var(--white);
  letter-spacing: -0.03em; margin-bottom: 0.75rem;
}
.cta-banner p {
  color: var(--gray-400); font-size: 1.1rem;
  margin-bottom: 2rem; max-width: 500px; margin-left: auto; margin-right: auto;
}
.cta-banner .btn-primary {
  font-size: 1.05rem; padding: 1rem 2.5rem;
}

/* ── FOOTER ── */
footer {
  background: var(--gray-100);
  border-top: 0.5px solid var(--gray-200);
  padding: 3rem 2rem 2rem;
}
.footer-inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center;
  justify-content: space-between;
  flex-wrap: wrap; gap: 1rem;
}
.footer-brand {
  display: flex; align-items: center; gap: 0.6rem;
}
.footer-brand .logo-mark {
  width: 28px; height: 28px; font-size: 0.8rem;
}
.footer-brand span {
  font-weight: 600; font-size: 0.95rem;
}
.footer-links {
  display: flex; gap: 1.5rem; list-style: none;
}
.footer-links a {
  color: var(--gray-500); text-decoration: none;
  font-size: 0.85rem; transition: color var(--transition);
}
.footer-links a:hover { color: var(--gray-900); }
.footer-copy {
  width: 100%; text-align: center;
  color: var(--gray-400); font-size: 0.8rem;
  margin-top: 1.5rem; padding-top: 1.5rem;
  border-top: 0.5px solid var(--gray-200);
}

/* ── SCROLL ANIMATIONS ── */
.reveal {
  opacity: 0; transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.25, 0.1, 0.25, 1),
              transform 0.8s cubic-bezier(0.25, 0.1, 0.25, 1);
}
.reveal.visible {
  opacity: 1; transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .services-grid { grid-template-columns: 1fr; }
  .feature-row { grid-template-columns: 1fr; gap: 2rem; }
  .feature-row.reverse .feature-visual { order: 0; }
  .contact-grid { grid-template-columns: 1fr; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .values-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
  .about-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .nav-links.open {
    display: flex; flex-direction: column;
    position: absolute; top: 100%; left: 0; right: 0;
    background: rgba(251,251,253,0.97);
    backdrop-filter: blur(20px);
    padding: 1rem 2rem 1.5rem;
    border-bottom: 0.5px solid var(--gray-200);
    gap: 0;
  }
  .nav-links.open a { padding: 0.8rem 0; font-size: 0.95rem; }
  .nav-cta { width: fit-content; margin-top: 0.5rem; }
}
@media (max-width: 600px) {
  .hero { padding: 7rem 1.5rem 4rem; }
  .hero h1 { font-size: 2.8rem; }
  section { padding: 5rem 1.5rem; }
  .form-row { grid-template-columns: 1fr; }
  .stats-bar {
    grid-template-columns: 1fr 1fr;
    padding: 2.5rem 2rem; border-radius: var(--radius-lg);
  }
  .cta-banner { padding: 3.5rem 2rem; border-radius: var(--radius-lg); }
  .footer-inner { flex-direction: column; text-align: center; }
  .footer-links { flex-wrap: wrap; justify-content: center; }
}