/* ============================================================
   MIKROFON PRO — RESPONSIVE CSS (MOBILE FIRST)
   ============================================================ */

/* --- DESIGN TOKENS --- */
:root {
  --accent:       #2563eb;
  --accent-dark:  #1d4ed8;
  --accent-light: #dbeafe;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted:   #94a3b8;
  --bg-main:      #ffffff;
  --bg-alt:       #f8fafc;
  --bg-dark:      #0f172a;
  --border:       #e2e8f0;
  --border-dark:  #cbd5e1;
  --radius-sm:    6px;
  --radius:       12px;
  --radius-lg:    20px;
  --shadow-sm:    0 1px 3px rgba(0,0,0,.08);
  --shadow:       0 4px 16px rgba(0,0,0,.1);
  --shadow-lg:    0 12px 40px rgba(0,0,0,.14);
  --font-body:    'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;
  --transition:   0.2s ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--text-primary);
  background: var(--bg-main);
  line-height: 1.6;
  overflow-x: hidden;
}

img, svg { max-width: 100%; display: block; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

ul, ol { padding-left: 1.25rem; }
li { margin-bottom: 0.35rem; }

address { font-style: normal; }

/* --- TYPOGRAPHY --- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.2;
  color: var(--text-primary);
}

h1 { font-size: clamp(2rem, 5vw, 3.25rem); font-weight: 700; }
h2 { font-size: clamp(1.6rem, 4vw, 2.4rem); font-weight: 600; }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.4rem); font-weight: 600; }
h4 { font-size: 1rem; font-weight: 600; font-family: var(--font-body); }

p { margin-bottom: 1rem; color: var(--text-secondary); }
p:last-child { margin-bottom: 0; }

blockquote {
  border-left: 3px solid var(--accent);
  padding: 0.75rem 1.25rem;
  margin: 1.5rem 0;
  font-style: italic;
  color: var(--text-primary);
  background: var(--accent-light);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* --- LAYOUT --- */
.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.section {
  padding: 4rem 0;
}

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

/* --- BUTTONS --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  text-decoration: none;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}

.btn:hover { text-decoration: none; }
.btn:active { transform: scale(0.98); }

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  box-shadow: 0 4px 14px rgba(37,99,235,.35);
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
}
.btn-outline:hover {
  background: var(--accent);
  color: #fff;
}

.btn-large { padding: 1rem 2.25rem; font-size: 1.05rem; }
.btn-full { width: 100%; }

/* --- HEADER --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}

.site-header.scrolled {
  box-shadow: 0 2px 16px rgba(0,0,0,.08);
}

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

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--text-primary);
}
.logo:hover { text-decoration: none; }

.logo-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

/* Nav */
.main-nav ul {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.main-nav a {
  display: block;
  padding: 0.5rem 0.85rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--accent);
  background: var(--accent-light);
}

.nav-cta {
  background: var(--accent) !important;
  color: #fff !important;
  padding: 0.5rem 1.1rem !important;
}
.nav-cta:hover {
  background: var(--accent-dark) !important;
}
.nav-cta.active {
  background: var(--accent-dark) !important;
}

/* Hamburger */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}
.menu-toggle:hover { background: var(--bg-alt); }

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.4);
  z-index: 999;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.nav-overlay.active {
  display: block;
  opacity: 1;
}

/* --- SECTION LABELS --- */
.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.section-title {
  margin-bottom: 2.5rem;
}

.section-cta {
  text-align: center;
  margin-top: 2.5rem;
}

/* --- HERO --- */
.hero {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 60%, #1e40af 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
  padding: 5rem 0 3rem;
}

.hero-inner {
  display: flex;
  align-items: center;
  gap: 3rem;
}

.hero-content {
  flex: 1;
  min-width: 0;
}

.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,.12);
  color: rgba(255,255,255,.85);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.3rem 0.9rem;
  border-radius: 100px;
  margin-bottom: 1.25rem;
  border: 1px solid rgba(255,255,255,.2);
}

.hero-title {
  color: #fff;
  margin-bottom: 1.25rem;
}

.hero-subtitle {
  color: rgba(255,255,255,.8);
  font-size: 1.1rem;
  line-height: 1.7;
  max-width: 520px;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.hero-actions .btn-outline {
  color: #fff;
  border-color: rgba(255,255,255,.5);
}
.hero-actions .btn-outline:hover {
  background: rgba(255,255,255,.15);
  border-color: rgba(255,255,255,.8);
  color: #fff;
}

.hero-visual {
  flex-shrink: 0;
  width: clamp(280px, 38%, 460px);
}

.hero-mic-graphic {
  display: flex;
  justify-content: center;
  align-items: center;
}

.mic-svg {
  width: 180px;
  height: 252px;
  filter: drop-shadow(0 20px 40px rgba(37,99,235,.4));
}

.pulse-dot {
  animation: pulse 2s ease-in-out infinite;
}
.delay-1 { animation-delay: 0.4s; }
.delay-2 { animation-delay: 0.8s; }

@keyframes pulse {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.4); }
}

.hero-wave {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  line-height: 0;
}
.hero-wave svg { width: 100%; }

/* --- PAGE HERO (inner pages) --- */
.page-hero {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
  color: #fff;
  padding: 4rem 0 3.5rem;
  text-align: center;
}

.page-hero h1 { color: #fff; margin: 1rem 0; }
.page-hero p { color: rgba(255,255,255,.8); font-size: 1.05rem; max-width: 600px; margin: 0 auto; }

/* --- SERVICES OVERVIEW --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.service-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  position: relative;
  transition: transform var(--transition), box-shadow var(--transition);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.service-card::before {
  content: attr(data-index);
  position: absolute;
  top: 1.25rem;
  right: 1.5rem;
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: var(--border-dark);
  line-height: 1;
  pointer-events: none;
}

.service-icon {
  width: 52px;
  height: 52px;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

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

.card-link {
  display: inline-block;
  margin-top: 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
}

/* --- ABOUT TEASER --- */
.about-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: start;
}

.about-text h2 { margin-bottom: 1rem; }

.about-facts {
  list-style: none;
  padding: 0;
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.about-facts li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-primary);
}

.fact-icon {
  color: var(--accent);
  font-weight: 700;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.stat-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.3;
}

/* --- KNOWLEDGE SECTION --- */
.knowledge-content { display: flex; flex-direction: column; gap: 2rem; }

.knowledge-text { max-width: 700px; }

.knowledge-stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1.5rem;
  border-top: 1px solid var(--border);
  padding-top: 2rem;
}

.kstat {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.kstat strong {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--accent);
}

.kstat span {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* --- PROCESS STEPS --- */
.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  position: relative;
}

.process-step {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.step-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.step-content h3 { margin-bottom: 0.5rem; }

/* --- CTA BANNER --- */
.cta-banner {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
  text-align: center;
  padding: 5rem 0;
}

.cta-banner h2 { color: #fff; margin-bottom: 1rem; }
.cta-banner p { color: rgba(255,255,255,.75); margin-bottom: 2rem; }

.cta-meta {
  margin-top: 1.25rem !important;
  font-size: 0.82rem;
  color: rgba(255,255,255,.5) !important;
}

/* --- WHY SOUND --- */
.why-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: start;
}

.why-checklist {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
}

.why-checklist h3 { margin-bottom: 1.25rem; }

.checklist {
  list-style: none;
  padding: 0;
}

.checklist li {
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.95rem;
  color: var(--text-primary);
}
.checklist li:last-child { border-bottom: none; }
.checklist li::before {
  content: '✓';
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
}

/* --- TESTIMONIALS --- */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.testimonial-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.testimonial-stars {
  color: #f59e0b;
  font-size: 1rem;
  letter-spacing: 2px;
}

.testimonial-card blockquote {
  border: none;
  background: none;
  padding: 0;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-secondary);
  font-style: italic;
  margin: 0;
}

.testimonial-card cite {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  font-style: normal;
}

.testimonial-note {
  margin-top: 2rem;
  font-size: 0.78rem;
  color: var(--text-muted) !important;
  text-align: center;
}

/* --- EQUIPMENT --- */
.equipment-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.equip-item {
  padding: 1.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-main);
}

.equip-category {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.equip-item h3 { margin-bottom: 0.75rem; }

/* --- BLOG PREVIEW / GRID --- */
.blog-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.blog-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: box-shadow var(--transition), transform var(--transition);
}

.blog-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.blog-card-featured {
  border-color: var(--accent);
  background: var(--accent-light);
}

.blog-tag {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.2rem 0.65rem;
  border-radius: 100px;
  margin-bottom: 1rem;
}

.blog-card h3, .blog-card-title {
  margin-bottom: 0.75rem;
  font-size: 1.1rem;
}

.blog-card h3 a, .blog-card-title a {
  color: var(--text-primary);
  text-decoration: none;
}
.blog-card h3 a:hover, .blog-card-title a:hover {
  color: var(--accent);
  text-decoration: none;
}

.blog-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
  display: inline-block;
  margin-top: 1rem;
}

.blog-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.blog-card-meta time {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* Full blog page grid */
.blog-full-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

/* --- FAQ --- */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item:last-child { border-bottom: none; }

.faq-item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
  list-style: none;
  background: var(--bg-main);
  transition: background var(--transition);
  gap: 1rem;
}
.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: '+';
  font-size: 1.3rem;
  font-weight: 300;
  color: var(--accent);
  flex-shrink: 0;
  transition: transform 0.25s ease;
}

.faq-item[open] summary {
  background: var(--accent-light);
}
.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 1.5rem 1.25rem;
  background: var(--bg-alt);
}

/* --- INLINE REQUEST SECTION --- */
.inline-request-section {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
}

.inline-request-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: start;
}

.inline-request-text h2 {
  color: #fff;
  margin-bottom: 1rem;
}

.inline-request-text p {
  color: rgba(255,255,255,.7);
}

.inline-request-text .section-label {
  color: #93c5fd;
}

.inline-request-text .about-facts li {
  color: rgba(255,255,255,.85);
}

.inline-request-text .fact-icon {
  color: #60a5fa;
}

.inline-request-form-wrap {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: 0 20px 50px rgba(0,0,0,.25);
}

@media (min-width: 860px) {
  .inline-request-grid {
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
  }
}

/* --- FINAL CTA (legacy, kept for reference) --- */
.final-cta {
  background: var(--bg-alt);
  text-align: center;
}

.final-cta h2 { margin-bottom: 1rem; }

/* --- FOOTER --- */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,.7);
  padding: 4rem 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,.1);
}

.footer-brand .footer-logo .logo-text { color: #fff; }
.footer-brand .footer-logo .logo-icon { background: rgba(255,255,255,.1); }

.footer-desc {
  margin-top: 1rem;
  font-size: 0.88rem;
  line-height: 1.6;
  max-width: 300px;
  color: rgba(255,255,255,.5) !important;
}

.footer-nav h4 {
  color: #fff;
  margin-bottom: 1rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.footer-nav ul { list-style: none; padding: 0; }
.footer-nav li { margin-bottom: 0.5rem; }
.footer-nav a {
  color: rgba(255,255,255,.55);
  font-size: 0.9rem;
  transition: color var(--transition);
}
.footer-nav a:hover { color: #fff; text-decoration: none; }

.footer-contact h4 {
  color: #fff;
  margin-bottom: 1rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.footer-contact a { color: rgba(255,255,255,.7); }
.footer-contact a:hover { color: #fff; }
.footer-contact p { font-size: 0.9rem; margin-bottom: 0.35rem; color: rgba(255,255,255,.55) !important; }

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1.5rem 0;
  align-items: flex-start;
}

.footer-bottom p { font-size: 0.82rem; color: rgba(255,255,255,.35) !important; margin: 0; }

.footer-legal {
  display: flex;
  gap: 1.5rem;
}
.footer-legal a {
  font-size: 0.82rem;
  color: rgba(255,255,255,.4);
}
.footer-legal a:hover { color: rgba(255,255,255,.8); text-decoration: none; }

/* --- LEISTUNGEN PAGE --- */
.service-detail-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: start;
}

.service-detail-grid.reverse .service-detail-aside { order: -1; }

.service-detail-number {
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 700;
  color: var(--accent-light);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.service-detail-text h2 { margin-bottom: 1.25rem; }

.detail-list {
  margin: 1rem 0 1.5rem;
}
.detail-list li { margin-bottom: 0.4rem; color: var(--text-secondary); }

.aside-box {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.25rem;
}

.aside-box:last-child { margin-bottom: 0; }

.aside-box h4 {
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
}

.aside-box ul { list-style: none; padding: 0; }
.aside-box li { font-size: 0.9rem; color: var(--text-secondary); padding: 0.3rem 0; border-bottom: 1px solid var(--border); }
.aside-box li:last-child { border-bottom: none; }

/* --- ABOUT PAGE --- */
.about-page-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

.about-page-text h2 {
  font-size: 1.6rem;
  margin-bottom: 1rem;
}

.about-values {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.value-item {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.value-icon {
  font-size: 1.5rem;
  margin-bottom: 0.6rem;
}

.value-item h4 { margin-bottom: 0.4rem; }
.value-item p { font-size: 0.88rem; margin: 0; }

.stats-grid-large {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
}

.stat-card-large {
  background: var(--bg-main);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
}

.stat-card-large .stat-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
  display: block;
  margin-bottom: 0.25rem;
}

.stat-card-large .stat-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  display: block;
  margin-bottom: 0.75rem;
}

.stat-card-large p { font-size: 0.85rem; margin: 0; }

/* --- CONTACT PAGE --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: start;
}

.contact-form-wrap { width: 100%; }

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}

.required { color: var(--accent); }

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text-primary);
  background: var(--bg-main);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}

.form-group textarea { resize: vertical; }

.form-note {
  font-size: 0.8rem;
  color: var(--text-muted) !important;
  text-align: center;
}

.form-errors {
  background: #fef2f2;
  border: 1px solid #fca5a5;
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
}
.form-errors ul { list-style: disc; padding-left: 1.25rem; }
.form-errors li { font-size: 0.9rem; color: #dc2626; margin-bottom: 0.25rem; }

.form-success {
  text-align: center;
  padding: 3rem 2rem;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.success-icon {
  width: 60px;
  height: 60px;
  background: var(--accent);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 auto 1.25rem;
}

.form-success h3 { margin-bottom: 0.75rem; }

.contact-info { display: flex; flex-direction: column; gap: 1.5rem; }

.contact-info-block h3 {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
  margin-bottom: 0.5rem;
  font-family: var(--font-body);
}

.contact-info-block p { font-size: 0.95rem; margin: 0; }

.contact-expect-list {
  list-style: none;
  padding: 0;
}
.contact-expect-list li {
  padding: 0.4rem 0;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}
.contact-expect-list li:last-child { border-bottom: none; }
.contact-expect-list li::before {
  content: '✓';
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
}

/* --- BLOG ARTICLE --- */
.blog-article { padding: 4rem 0; }

.article-header {
  max-width: 760px;
  margin: 0 auto 3rem;
  text-align: center;
}

.article-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.article-meta time {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.article-lead {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-top: 1rem;
}

.article-body {
  max-width: 760px;
  margin: 0 auto;
}

.article-body h2 {
  font-size: 1.5rem;
  margin: 2.5rem 0 1rem;
}

.article-body h3 {
  font-size: 1.15rem;
  margin: 1.75rem 0 0.75rem;
}

.article-body ul,
.article-body ol {
  margin-bottom: 1rem;
}

.article-body li { color: var(--text-secondary); }

.article-callout {
  background: var(--accent-light);
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 1rem 1.5rem;
  margin: 2rem 0;
  color: var(--text-primary);
  font-size: 0.95rem;
  line-height: 1.6;
}

.article-footer {
  max-width: 760px;
  margin: 3rem auto 0;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

/* ============================================================
   RESPONSIVE — TABLET (≥ 640px)
   ============================================================ */

@media (min-width: 640px) {
  .hero-visual { display: block; }
  .about-inner { grid-template-columns: 1fr 1fr; }
  .about-photo-col { grid-column: 1 / -1; }
  .why-content { grid-template-columns: 1fr 1fr; }
  .blog-grid { grid-template-columns: 1fr 1fr; }
  .blog-grid .blog-card-featured { grid-column: 1 / -1; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: row; justify-content: space-between; align-items: center; }
  .contact-form-wrap { max-width: 100%; }
}

/* ============================================================
   RESPONSIVE — DESKTOP (≥ 900px)
   ============================================================ */

@media (min-width: 900px) {
  .section { padding: 5.5rem 0; }

  /* hero */
  .hero { padding: 7rem 0 4rem; }

  /* about — photo | text | stats */
  .about-inner { grid-template-columns: 2fr 3fr 2fr; gap: 3rem; align-items: center; }
  .about-photo-col { grid-column: auto; }
  .about-stats { grid-column: auto; }

  /* why sound */
  .why-content { grid-template-columns: 3fr 2fr; }

  /* footer */
  .footer-grid { grid-template-columns: 2fr 1fr 1fr 1.5fr; }

  /* services detail */
  .service-detail-grid { grid-template-columns: 3fr 2fr; }
  .service-detail-grid.reverse { grid-template-columns: 2fr 3fr; }
  .service-detail-grid.reverse .service-detail-aside { order: 0; }

  /* about page */
  .about-page-grid { grid-template-columns: 3fr 2fr; }

  /* contact */
  .contact-grid { grid-template-columns: 3fr 2fr; }

  /* blog full */
  .blog-full-grid { grid-template-columns: 1fr 1fr; }
  .blog-full-grid .blog-card:first-child { grid-column: 1 / -1; }
}

/* ============================================================
   RESPONSIVE — MOBILE NAV (< 768px)
   ============================================================ */

@media (max-width: 767px) {
  .menu-toggle { display: flex; }

  .main-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(300px, 80vw);
    background: var(--bg-main);
    z-index: 1001;
    padding: 5rem 1.5rem 2rem;
    box-shadow: -4px 0 24px rgba(0,0,0,.15);
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(.4,0,.2,1);
    overflow-y: auto;
  }

  .main-nav.open {
    transform: translateX(0);
  }

  .main-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;
  }

  .main-nav a {
    font-size: 1rem;
    padding: 0.75rem 1rem;
  }

  .nav-cta {
    margin-top: 1rem;
    text-align: center;
  }

  /* Hero adjustments */
  .hero-visual { display: none; }
  .hero-inner { flex-direction: column; align-items: flex-start; }

  /* Service detail */
  .service-detail-grid.reverse .service-detail-aside { order: 0; }

  /* Adjust stats */
  .about-stats { grid-template-columns: 1fr 1fr; }

  /* Article footer */
  .article-footer { flex-direction: column; }
  .article-footer .btn { width: 100%; justify-content: center; }
}

/* ============================================================
   UTILITIES
   ============================================================ */

.text-center { text-align: center; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }

/* Scroll fade-in animation */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   MODAL
   ============================================================ */

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  background: rgba(15,23,42,.55);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-box {
  background: var(--bg-main);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 60px rgba(0,0,0,.25);
  padding: 2.5rem 2rem;
  max-width: 440px;
  width: 100%;
  text-align: center;
  transform: translateY(24px) scale(.97);
  transition: transform 0.3s cubic-bezier(.34,1.56,.64,1);
}

.modal-overlay.open .modal-box {
  transform: translateY(0) scale(1);
}

.modal-icon {
  display: flex;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.modal-title {
  font-size: 1.4rem;
  margin-bottom: 0.75rem;
  font-family: var(--font-display);
}

.modal-desc {
  font-size: 0.97rem;
  line-height: 1.65;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.modal-actions {
  display: flex;
  justify-content: center;
}

/* Modal с формой — расширенная версия */
.modal-box--form {
  max-width: 520px;
  padding: 2rem 2rem 2rem;
  position: relative;
  text-align: left;
}

.modal-close-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  padding: 4px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition), background var(--transition);
  line-height: 0;
}
.modal-close-btn:hover { color: var(--text-primary); background: var(--bg-alt); }

.modal-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.modal-header-icon {
  flex-shrink: 0;
  line-height: 0;
}

.modal-header .modal-title {
  font-size: 1.3rem;
  margin-bottom: 0.2rem;
  font-family: var(--font-display);
}

.modal-subtitle {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin: 0;
}

.req-form { display: flex; flex-direction: column; gap: 1rem; }

.req-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 480px) {
  .req-form-row { grid-template-columns: 1fr; }
  .modal-box--form { padding: 1.5rem 1.25rem; }
}

.req-form-errors {
  background: #fef2f2;
  border: 1px solid #fca5a5;
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  margin-bottom: 0.5rem;
}
.req-form-errors ul { list-style: disc; padding-left: 1.25rem; margin: 0; }
.req-form-errors li { font-size: 0.88rem; color: #dc2626; margin-bottom: 0.2rem; }

/* Spinner animation */
@keyframes spin {
  to { transform: rotate(360deg); }
}
.spin { animation: spin 0.8s linear infinite; }

/* Btn loading state */
.btn[data-loading] {
  opacity: .85;
  pointer-events: none;
  cursor: not-allowed;
}

/* ============================================================
   PHOTOS
   ============================================================ */

/* Hero photo */
.hero-photo-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0,0,0,.45);
  position: relative;
  flex-shrink: 0;
  width: 420px;
  max-width: 100%;
}

.hero-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: var(--radius-lg);
}

/* About section photo */
.about-inner {
  align-items: center;
}

.about-photo-col {
  flex-shrink: 0;
}

.about-photo-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 3/2;
}

.about-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Equipment photo */
.equipment-photo-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  margin-bottom: 3rem;
  max-height: 480px;
}

.equipment-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
  display: block;
}