/* ==========================================================
   BT-SW – Hauptstylesheet
   Modern, elegant, premium. Dark hero + light content.
   ========================================================== */

/* ---------- Design Tokens ---------- */
:root {
  --c-bg:           #0b0f1a;
  --c-bg-2:         #111827;
  --c-surface:      #ffffff;
  --c-surface-alt:  #f6f8fc;
  --c-border:       #e5e9f2;
  --c-border-dark:  rgba(255,255,255,.08);

  --c-text:         #0f172a;
  --c-text-soft:    #475569;
  --c-text-muted:   #64748b;
  --c-text-invert:  #f8fafc;
  --c-text-invert-soft: #cbd5e1;

  --c-primary:      #3b82f6;
  --c-primary-600:  #2563eb;
  --c-primary-700:  #1d4ed8;
  --c-accent:       #8b5cf6;
  --c-accent-2:     #06b6d4;

  --grad-primary:   linear-gradient(135deg, #3b82f6 0%, #8b5cf6 50%, #06b6d4 100%);
  --grad-primary-soft: linear-gradient(135deg, rgba(59,130,246,.12), rgba(139,92,246,.12));
  --grad-hero:      radial-gradient(1200px 600px at 20% -10%, rgba(59,130,246,.22), transparent 60%),
                    radial-gradient(900px 500px at 80% 10%, rgba(139,92,246,.18), transparent 60%),
                    radial-gradient(700px 400px at 50% 100%, rgba(6,182,212,.12), transparent 60%),
                    linear-gradient(180deg, #0b0f1a 0%, #0f172a 100%);

  --shadow-sm:  0 1px 2px rgba(15,23,42,.06);
  --shadow:     0 6px 20px rgba(15,23,42,.08);
  --shadow-lg:  0 20px 50px rgba(15,23,42,.12);
  --shadow-xl:  0 30px 80px rgba(15,23,42,.16);
  --shadow-glow: 0 20px 60px rgba(59,130,246,.35);

  --radius-sm: 8px;
  --radius:    14px;
  --radius-lg: 22px;
  --radius-xl: 32px;

  --container: 1200px;
  --ease:      cubic-bezier(.2,.8,.2,1);
  --t-fast:    .2s var(--ease);
  --t:         .35s var(--ease);
  --t-slow:    .6s var(--ease);

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

/* ---------- Reset ---------- */
*,*::before,*::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--c-text);
  background: var(--c-surface);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
body.no-scroll { overflow: hidden; }

img, svg { max-width: 100%; display: block; }
a { color: var(--c-primary-600); text-decoration: none; transition: color var(--t-fast); }
a:hover { color: var(--c-primary-700); }
h1,h2,h3,h4,h5 { margin: 0 0 .6em; font-weight: 700; letter-spacing: -.015em; color: var(--c-text); line-height: 1.2; }
p { margin: 0 0 1em; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
input, select, textarea { font-family: inherit; font-size: 1rem; color: var(--c-text); }
ul { list-style: none; padding: 0; margin: 0; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.hidden { display: none !important; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  font-weight: 600;
  font-size: .95rem;
  letter-spacing: .01em;
  border-radius: 999px;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform var(--t-fast), box-shadow var(--t), background var(--t), color var(--t), border-color var(--t);
  white-space: nowrap;
  text-decoration: none;
  line-height: 1;
}
.btn:hover   { transform: translateY(-2px); }
.btn:active  { transform: translateY(0); }

.btn-primary {
  color: #fff;
  background: var(--grad-primary);
  background-size: 200% 200%;
  box-shadow: var(--shadow-glow);
}
.btn-primary:hover {
  color: #fff;
  background-position: 100% 0;
  box-shadow: 0 25px 70px rgba(59,130,246,.45);
}

.btn-outline {
  color: var(--c-text);
  border-color: var(--c-border);
  background: var(--c-surface);
}
.btn-outline:hover {
  color: var(--c-primary-700);
  border-color: var(--c-primary);
  background: rgba(59,130,246,.06);
}

.btn-outline-light {
  color: #fff;
  border-color: rgba(255,255,255,.3);
  background: rgba(255,255,255,.04);
  backdrop-filter: blur(8px);
}
.btn-outline-light:hover {
  color: #fff;
  border-color: rgba(255,255,255,.6);
  background: rgba(255,255,255,.1);
}

.btn-ghost {
  color: var(--c-text-soft);
  background: transparent;
  padding: 10px 14px;
}
.btn-ghost:hover { color: var(--c-text); background: rgba(15,23,42,.05); }

.btn-sm  { padding: 9px 16px; font-size: .85rem; }
.btn-lg  { padding: 15px 28px; font-size: 1rem; }
.btn-full{ width: 100%; }

/* ---------- Header ---------- */
.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  padding: 18px 0;
  background: transparent;
  transition: background var(--t), box-shadow var(--t), padding var(--t), backdrop-filter var(--t);
}
.header.scrolled {
  padding: 12px 0;
  background: rgba(11,15,26,.72);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  box-shadow: 0 10px 30px rgba(0,0,0,.18);
  border-bottom: 1px solid var(--c-border-dark);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: .02em;
}
.logo:hover { color: #fff; }
.logo-img {
  width: 38px; height: 38px;
  object-fit: contain;
  border-radius: 10px;
  background: rgba(255,255,255,.08);
  padding: 4px;
}
.logo-text { background: var(--grad-primary); -webkit-background-clip: text; background-clip: text; color: transparent; }

.nav-list { display: flex; gap: 8px; align-items: center; }
.nav-link {
  display: inline-block;
  color: rgba(255,255,255,.82);
  font-weight: 500;
  font-size: .95rem;
  padding: 10px 16px;
  border-radius: 999px;
  transition: color var(--t-fast), background var(--t-fast);
}
.nav-link:hover { color: #fff; background: rgba(255,255,255,.06); }
.nav-link.active { color: #fff; background: rgba(255,255,255,.1); }
.nav-link.nav-cta {
  background: var(--grad-primary);
  color: #fff;
  padding: 11px 20px;
  box-shadow: 0 10px 30px rgba(59,130,246,.35);
}
.nav-link.nav-cta:hover { background: var(--grad-primary); filter: brightness(1.08); }

.menu-toggle {
  display: none;
  width: 44px; height: 44px;
  border-radius: 12px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.menu-toggle span {
  display: block;
  width: 20px; height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform var(--t), opacity var(--t);
}
.menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Sections ---------- */
.section { padding: 110px 0; position: relative; }
.section-header { text-align: center; max-width: 760px; margin: 0 auto 64px; }
.section-tag {
  display: inline-block;
  padding: 8px 16px;
  background: var(--grad-primary-soft);
  color: var(--c-primary-700);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  border-radius: 999px;
  margin-bottom: 18px;
  border: 1px solid rgba(59,130,246,.15);
}
.section-title {
  font-size: clamp(1.8rem, 3.3vw, 2.8rem);
  margin-bottom: 16px;
  letter-spacing: -.025em;
}
.section-subtitle {
  font-size: 1.1rem;
  color: var(--c-text-soft);
  line-height: 1.7;
}
.gradient-text {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 160px 0 120px;
  overflow: hidden;
  color: var(--c-text-invert);
  isolation: isolate;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: var(--grad-hero);
  z-index: -2;
}
.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at center, #000 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 0%, transparent 70%);
  opacity: .5;
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 40%, rgba(59,130,246,.18), transparent 55%);
  animation: pulse 8s ease-in-out infinite;
}
@keyframes pulse {
  0%,100% { opacity: .7; transform: scale(1); }
  50%     { opacity: 1;  transform: scale(1.08); }
}

.hero-content { position: relative; text-align: center; z-index: 1; }
.hero-badge {
  display: inline-block;
  padding: 9px 20px;
  background: rgba(255,255,255,.06);
  color: #cbd5e1;
  font-size: .82rem;
  font-weight: 500;
  letter-spacing: .1em;
  text-transform: uppercase;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.12);
  backdrop-filter: blur(12px);
  margin-bottom: 26px;
}
.hero-title {
  font-size: clamp(2.2rem, 5.5vw, 4.6rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -.035em;
  color: #fff;
  margin-bottom: 22px;
}
.hero-title .gradient-text {
  background: linear-gradient(135deg, #60a5fa 0%, #a78bfa 50%, #22d3ee 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-subtitle {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  max-width: 680px;
  margin: 0 auto 38px;
  color: var(--c-text-invert-soft);
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 70px;
}
.hero-stats {
  display: inline-flex;
  align-items: center;
  gap: 40px;
  padding: 22px 44px;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 22px;
  backdrop-filter: blur(14px);
}
.stat { display: flex; flex-direction: column; align-items: center; line-height: 1; }
.stat-number {
  font-size: 2.2rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -.02em;
}
.stat-plus {
  font-size: 1.6rem;
  font-weight: 800;
  color: #60a5fa;
  margin-left: 2px;
}
.stat-label {
  display: block;
  font-size: .78rem;
  color: var(--c-text-invert-soft);
  margin-top: 8px;
  text-transform: uppercase;
  letter-spacing: .1em;
}
.stat-divider {
  width: 1px; height: 40px;
  background: rgba(255,255,255,.12);
}

.hero-scroll {
  position: absolute;
  left: 50%;
  bottom: 34px;
  transform: translateX(-50%);
}
.scroll-indicator {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  color: var(--c-text-invert-soft);
  font-size: .78rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  animation: bounce 2.4s ease-in-out infinite;
}
.scroll-indicator:hover { color: #fff; }
@keyframes bounce {
  0%,100% { transform: translateY(0); }
  50%     { transform: translateY(10px); }
}

/* ---------- About ---------- */
.about { background: var(--c-surface); }
.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.about-card {
  padding: 40px 32px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  transition: transform var(--t), box-shadow var(--t), border-color var(--t);
  position: relative;
  overflow: hidden;
}
.about-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--grad-primary-soft);
  opacity: 0;
  transition: opacity var(--t);
}
.about-card > * { position: relative; z-index: 1; }
.about-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(59,130,246,.25);
}
.about-card:hover::before { opacity: 1; }
.about-icon {
  width: 62px; height: 62px;
  border-radius: 16px;
  background: var(--grad-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  margin-bottom: 22px;
  box-shadow: 0 12px 30px rgba(59,130,246,.3);
}
.about-card h3 { font-size: 1.25rem; }
.about-card p  { color: var(--c-text-soft); margin: 0; }

/* ---------- Services ---------- */
.services { background: var(--c-surface-alt); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.service-card {
  padding: 34px 28px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  transition: transform var(--t), box-shadow var(--t), border-color var(--t);
  position: relative;
  overflow: hidden;
}
.service-card::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 3px;
  background: var(--grad-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t);
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(59,130,246,.25);
}
.service-card:hover::after { transform: scaleX(1); }
.service-icon {
  width: 54px; height: 54px;
  border-radius: 14px;
  background: var(--grad-primary-soft);
  color: var(--c-primary-700);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  transition: transform var(--t);
}
.service-card:hover .service-icon {
  transform: rotate(-6deg) scale(1.05);
  background: var(--grad-primary);
  color: #fff;
}
.service-card h3 { font-size: 1.15rem; }
.service-card p  { color: var(--c-text-soft); font-size: .95rem; margin: 0; }

/* ---------- Process ---------- */
.process { background: var(--c-surface); }
.process-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  align-items: start;
  gap: 16px;
}
.process-step {
  text-align: center;
  padding: 32px 22px;
  background: var(--c-surface-alt);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  transition: transform var(--t), box-shadow var(--t);
}
.process-step:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}
.process-number {
  font-size: 2.2rem;
  font-weight: 800;
  background: var(--grad-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  letter-spacing: -.02em;
  margin-bottom: 14px;
}
.process-step h3 { font-size: 1.1rem; margin-bottom: 8px; }
.process-step p  { color: var(--c-text-soft); font-size: .92rem; margin: 0; }
.process-connector {
  align-self: center;
  height: 2px;
  width: 100%;
  min-width: 20px;
  background: linear-gradient(90deg, rgba(59,130,246,.2), rgba(139,92,246,.2));
  border-radius: 2px;
  position: relative;
  top: 40px;
}

/* ---------- Projects ---------- */
.projects { background: var(--c-surface-alt); }
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.project-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--t), box-shadow var(--t);
}
.project-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}
.project-image {
  position: relative;
  height: 220px;
  background: var(--grad-primary);
  overflow: hidden;
}
.project-img-1 { background: linear-gradient(135deg, #3b82f6, #06b6d4); }
.project-img-2 { background: linear-gradient(135deg, #8b5cf6, #ec4899); }
.project-img-3 { background: linear-gradient(135deg, #06b6d4, #10b981); }
.project-img-4 { background: linear-gradient(135deg, #f59e0b, #ef4444); }
.project-img-5 { background: linear-gradient(135deg, #6366f1, #8b5cf6); }
.project-image::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(600px 200px at 30% 20%, rgba(255,255,255,.25), transparent 60%),
    linear-gradient(180deg, transparent 50%, rgba(0,0,0,.35));
}
.project-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: .5;
}
.project-overlay {
  position: absolute;
  top: 16px; left: 16px;
  z-index: 1;
}
.project-tag {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(255,255,255,.96);
  color: var(--c-text);
  font-size: .78rem;
  font-weight: 600;
  border-radius: 999px;
  backdrop-filter: blur(8px);
}
.project-info { padding: 28px 26px; }
.project-info h3 { font-size: 1.15rem; margin-bottom: 10px; }
.project-info p  { color: var(--c-text-soft); font-size: .93rem; margin-bottom: 16px; }
.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.project-tags span {
  padding: 5px 12px;
  background: var(--grad-primary-soft);
  color: var(--c-primary-700);
  font-size: .78rem;
  font-weight: 500;
  border-radius: 999px;
  border: 1px solid rgba(59,130,246,.12);
}

/* ---------- Why Us ---------- */
.why-us { background: var(--c-surface); }
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.why-card {
  padding: 32px 28px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  background: var(--c-surface);
  display: flex;
  gap: 18px;
  align-items: flex-start;
  transition: transform var(--t), box-shadow var(--t), border-color var(--t);
}
.why-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: rgba(59,130,246,.25);
}
.why-icon {
  flex-shrink: 0;
  width: 48px; height: 48px;
  border-radius: 12px;
  background: var(--grad-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 24px rgba(59,130,246,.3);
}
.why-card h3 { font-size: 1.08rem; margin-bottom: 6px; }
.why-card p  { color: var(--c-text-soft); font-size: .92rem; margin: 0; }

/* ---------- Testimonials ---------- */
.testimonials { background: var(--c-surface-alt); }
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonial-card {
  padding: 36px 30px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform var(--t), box-shadow var(--t);
  position: relative;
}
.testimonial-card::before {
  content: '"';
  position: absolute;
  top: 14px; right: 24px;
  font-size: 5rem;
  font-weight: 800;
  font-family: Georgia, serif;
  background: var(--grad-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  opacity: .25;
  line-height: 1;
}
.testimonial-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.testimonial-stars {
  color: #fbbf24;
  font-size: 1.05rem;
  letter-spacing: 3px;
  margin-bottom: 16px;
}
.testimonial-text {
  color: var(--c-text);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 24px;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
}
.testimonial-avatar {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--grad-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: .92rem;
  letter-spacing: .02em;
}
.testimonial-author strong { display: block; font-size: .98rem; }
.testimonial-author span   { color: var(--c-text-muted); font-size: .82rem; }

/* ---------- FAQ ---------- */
.faq { background: var(--c-surface); }
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  margin-bottom: 14px;
  background: var(--c-surface);
  overflow: hidden;
  transition: border-color var(--t), box-shadow var(--t);
}
.faq-item:hover { border-color: rgba(59,130,246,.2); }
.faq-item.open {
  border-color: rgba(59,130,246,.35);
  box-shadow: var(--shadow-sm);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 26px;
  text-align: left;
  font-weight: 600;
  font-size: 1rem;
  color: var(--c-text);
  transition: background var(--t-fast);
}
.faq-question:hover { background: rgba(59,130,246,.04); }
.faq-icon {
  flex-shrink: 0;
  transition: transform var(--t);
  color: var(--c-primary);
}
.faq-item.open .faq-icon { transform: rotate(180deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--t);
}
.faq-item.open .faq-answer { max-height: 400px; }
.faq-answer p {
  padding: 0 26px 22px;
  color: var(--c-text-soft);
  margin: 0;
  line-height: 1.7;
}

/* ---------- CTA ---------- */
.cta-section { background: var(--c-surface); padding: 80px 0; }
.cta-box {
  padding: 70px 48px;
  background: var(--grad-hero);
  border-radius: var(--radius-xl);
  text-align: center;
  color: #fff;
  box-shadow: var(--shadow-xl);
  position: relative;
  overflow: hidden;
}
.cta-box::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 50%, rgba(96,165,250,.25), transparent 60%);
  animation: pulse 6s ease-in-out infinite;
}
.cta-box > * { position: relative; z-index: 1; }
.cta-box h2 {
  color: #fff;
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  margin-bottom: 16px;
}
.cta-box p {
  color: var(--c-text-invert-soft);
  font-size: 1.05rem;
  max-width: 580px;
  margin: 0 auto 32px;
}

/* ---------- Contact ---------- */
.contact { background: var(--c-surface-alt); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 50px;
  align-items: start;
}
.contact-info { display: flex; flex-direction: column; gap: 26px; }
.contact-item {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  padding: 22px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  transition: border-color var(--t), transform var(--t);
}
.contact-item:hover {
  border-color: rgba(59,130,246,.3);
  transform: translateX(4px);
}
.contact-icon {
  flex-shrink: 0;
  width: 46px; height: 46px;
  border-radius: 12px;
  background: var(--grad-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 22px rgba(59,130,246,.25);
}
.contact-item strong { display: block; font-size: .98rem; margin-bottom: 2px; }
.contact-item p, .contact-item p a {
  margin: 0;
  color: var(--c-text-soft);
  font-size: .94rem;
}

.contact-form {
  padding: 40px 36px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  position: relative;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-weight: 500;
  font-size: .88rem;
  color: var(--c-text-soft);
  margin-bottom: 8px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  background: var(--c-surface-alt);
  border: 1.5px solid var(--c-border);
  border-radius: 12px;
  transition: border-color var(--t-fast), background var(--t-fast), box-shadow var(--t-fast);
  font-family: inherit;
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--c-primary);
  background: var(--c-surface);
  box-shadow: 0 0 0 4px rgba(59,130,246,.12);
}
.form-group textarea { resize: vertical; min-height: 130px; }

.form-group input.has-error,
.form-group select.has-error,
.form-group textarea.has-error {
  border-color: #ef4444;
  background: rgba(239,68,68,.05);
}
.form-group input.has-error:focus,
.form-group select.has-error:focus,
.form-group textarea.has-error:focus {
  box-shadow: 0 0 0 4px rgba(239,68,68,.12);
}
.field-error {
  display: block;
  min-height: 1em;
  margin-top: 6px;
  font-size: .8rem;
  color: #b91c1c;
  font-weight: 500;
}
.char-counter {
  float: right;
  font-size: .75rem;
  color: var(--c-text-muted);
  font-weight: 400;
  letter-spacing: .02em;
}
.char-counter.near-limit { color: #b91c1c; font-weight: 600; }

/* Honeypot – komplett unsichtbar, aber für Bots fokussierbar */
.hp-field {
  position: absolute !important;
  left: -9999px !important;
  top: -9999px !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 22px;
}
.form-checkbox input { width: 18px; height: 18px; margin-top: 3px; accent-color: var(--c-primary); }
.form-checkbox label { color: var(--c-text-soft); font-size: .88rem; margin: 0; line-height: 1.5; }
.form-checkbox label a { color: var(--c-primary-700); font-weight: 600; }

.form-status {
  display: none;
  margin-top: 18px;
  padding: 14px 18px;
  border-radius: 12px;
  font-size: .92rem;
  font-weight: 500;
  text-align: center;
}
.form-status.success {
  background: rgba(16,185,129,.1);
  border: 1px solid rgba(16,185,129,.3);
  color: #047857;
}
.form-status.error {
  background: rgba(239,68,68,.1);
  border: 1px solid rgba(239,68,68,.3);
  color: #b91c1c;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--c-bg);
  color: var(--c-text-invert-soft);
  padding: 80px 0 30px;
  position: relative;
  overflow: hidden;
}
.footer::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 90%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(59,130,246,.3), transparent);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 50px;
  margin-bottom: 60px;
}
.footer-brand p { max-width: 320px; color: var(--c-text-invert-soft); font-size: .92rem; line-height: 1.7; margin-top: 16px; }
.footer-links h4 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 20px;
  font-weight: 600;
}
.footer-links li { margin-bottom: 10px; }
.footer-links a {
  color: var(--c-text-invert-soft);
  font-size: .92rem;
  transition: color var(--t-fast), padding-left var(--t-fast);
}
.footer-links a:hover {
  color: #fff;
  padding-left: 4px;
}
.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid rgba(255,255,255,.08);
  text-align: center;
  color: #64748b;
  font-size: .85rem;
}
.footer-bottom p { margin: 0; }

/* ---------- Back to top ---------- */
.back-to-top {
  position: fixed;
  right: 24px; bottom: 24px;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--grad-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-glow);
  opacity: 0;
  pointer-events: none;
  transform: translateY(20px);
  transition: opacity var(--t), transform var(--t);
  z-index: 90;
}
.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.back-to-top:hover { transform: translateY(-4px); }

/* ---------- Cookie Banner ---------- */
.cookie-banner {
  position: fixed;
  left: 24px; right: 24px; bottom: 24px;
  max-width: 960px;
  margin: 0 auto;
  background: rgba(15,23,42,.95);
  backdrop-filter: blur(16px);
  color: #fff;
  padding: 24px 28px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255,255,255,.1);
  box-shadow: 0 30px 80px rgba(0,0,0,.4);
  z-index: 200;
  transform: translateY(120%);
  opacity: 0;
  transition: transform var(--t-slow), opacity var(--t-slow);
}
.cookie-banner.show {
  transform: translateY(0);
  opacity: 1;
}
.cookie-content {
  display: flex;
  gap: 30px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}
.cookie-text { flex: 1 1 340px; min-width: 0; }
.cookie-text h3 { color: #fff; font-size: 1.05rem; margin-bottom: 6px; }
.cookie-text p  { color: var(--c-text-invert-soft); font-size: .88rem; margin: 0 0 6px; line-height: 1.5; }
.cookie-link    { color: #60a5fa; font-size: .85rem; font-weight: 500; }
.cookie-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.cookie-settings {
  margin-top: 22px;
  padding-top: 22px;
  border-top: 1px solid rgba(255,255,255,.1);
}
.cookie-setting-item {
  display: flex;
  gap: 20px;
  justify-content: space-between;
  align-items: flex-start;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,.05);
}
.cookie-setting-item:last-of-type { border-bottom: 0; }
.cookie-setting-item strong { color: #fff; font-size: .95rem; display: block; margin-bottom: 2px; }
.cookie-setting-item p { color: var(--c-text-invert-soft); font-size: .82rem; margin: 0; }

/* Toggle switch */
.toggle {
  position: relative;
  display: inline-block;
  width: 44px; height: 24px;
  flex-shrink: 0;
}
.toggle input {
  opacity: 0;
  width: 0; height: 0;
}
.toggle-slider {
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,.15);
  border-radius: 999px;
  cursor: pointer;
  transition: background var(--t-fast);
}
.toggle-slider::before {
  content: '';
  position: absolute;
  left: 3px; top: 3px;
  width: 18px; height: 18px;
  background: #fff;
  border-radius: 50%;
  transition: transform var(--t-fast);
}
.toggle input:checked + .toggle-slider {
  background: var(--grad-primary);
}
.toggle input:checked + .toggle-slider::before {
  transform: translateX(20px);
}
.toggle.disabled .toggle-slider {
  background: rgba(16,185,129,.4);
  cursor: not-allowed;
}

/* ---------- Fade-in animation ---------- */
.fade-in {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .fade-in, .fade-in.visible { opacity: 1; transform: none; transition: none; }
  .hero-bg::after, .cta-box::before { animation: none; }
  .scroll-indicator { animation: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Datenschutz / Impressum pages ---------- */
.legal-content {
  max-width: 820px;
  margin: 0 auto;
  padding: 160px 24px 100px;
}
.legal-content h1 { font-size: 2.2rem; margin-bottom: 28px; }
.legal-content h2 { font-size: 1.4rem; margin-top: 36px; }
.legal-content p, .legal-content li { color: var(--c-text-soft); line-height: 1.75; }
.legal-content a { font-weight: 500; }