/* Politano Service - visual system */
:root {
  --bg: #05070a;
  --surface: #0d1118;
  --surface-2: #141a24;
  --surface-3: #1a2230;
  --ink: #f6f8fb;
  --muted: #a8b1bf;
  --soft: #717d8e;
  --line: rgba(255, 255, 255, 0.1);
  --line-strong: rgba(41, 182, 246, 0.38);
  --cyan: #00c6ff;
  --blue: #4159ff;
  --magenta: #ff00b7;
  --violet: #7d35ff;
  --hot: #ff2bd6;
  --neon-primary: var(--cyan); 
  --max: 1180px;
  color-scheme: dark;
  font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(41, 182, 246, 0.08), transparent 420px),
    radial-gradient(circle at 78% 12%, rgba(255, 0, 183, 0.13), transparent 360px),
    radial-gradient(circle at 12% 46%, rgba(79, 124, 255, 0.12), transparent 440px),
    var(--bg);
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,0.85), transparent 80%);
}
body.menu-open { overflow: hidden; touch-action: none; }

h1, h2, h3, h4, p { margin-top: 0; }
h1 { max-width: 980px; margin-bottom: 24px; font-size: clamp(2rem, 4vw, 3.8rem); line-height: 1.05; letter-spacing: -0.02em; text-transform: uppercase; }
h2 { margin-bottom: 14px; font-size: clamp(1.75rem, 3vw, 2.65rem); line-height: 1.12; letter-spacing: 0; text-transform: uppercase; }
h3 { margin-bottom: 10px; font-size: 1.16rem; line-height: 1.3; }
p { margin-bottom: 0; color: var(--muted); font-size: 0.98rem; line-height: 1.75; }
a { color: inherit; }
.container { width: min(var(--max), calc(100% - 32px)); margin: 0 auto; }
.lead { max-width: 780px; color: #c0c8d6; font-size: 1.05rem; }
.eyebrow, .eyebrow-pulse { display: inline-block; margin: 0 0 16px; color: var(--cyan); font-size: 0.72rem; font-weight: 900; letter-spacing: 0.22em; text-transform: uppercase; }
.gradient-text { color: var(--cyan); }
.rule { width: 72px; height: 3px; margin: 24px 0; background: linear-gradient(90deg, var(--cyan), var(--blue), var(--magenta)); box-shadow: 0 0 18px rgba(41, 182, 246, 0.35); }
.small-label { display: inline-flex; margin-bottom: 12px; color: var(--magenta); font-size: 0.68rem; font-weight: 900; letter-spacing: 0.18em; text-transform: uppercase; }

.site-header { position: sticky; top: 0; z-index: 100; border-bottom: 1px solid var(--line); background: rgba(5, 7, 10, 0.88); backdrop-filter: blur(18px); }
.nav { width: min(var(--max), calc(100% - 32px)); min-height: 82px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
.brand { display: flex; align-items: center; gap: 14px; text-decoration: none; min-width: 0; }
.brand-mark { width: 88px; height: 42px; object-fit: contain; }
.brand-name { display: block; color: #fff; font-size: 1.02rem; font-weight: 900; letter-spacing: 0.2em; }
.brand-line { display: block; margin-top: 4px; color: var(--cyan); font-size: 0.62rem; font-weight: 800; letter-spacing: 0.13em; text-transform: uppercase; }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a { padding: 12px 10px; color: var(--muted); font-size: 0.72rem; font-weight: 850; letter-spacing: 0.11em; text-transform: uppercase; text-decoration: none; transition: color 0.2s, background 0.2s; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: #fff; background: rgba(41, 182, 246, 0.1); }

.nav-cta, .button { display: inline-flex; min-height: 46px; align-items: center; justify-content: center; gap: 8px; padding: 0 20px; border: 1px solid transparent; border-radius: 6px; color: #071015; background: #fff; font-size: 0.75rem; font-weight: 900; letter-spacing: 0.12em; text-transform: uppercase; text-decoration: none; cursor: pointer; transition: transform 0.2s, box-shadow 0.2s, background 0.2s, border-color 0.2s; }
.nav-cta, .button.primary-neon, .button:not(.secondary):not(.button-secondary):not(.youtube) { background: linear-gradient(135deg, var(--cyan), var(--blue) 48%, var(--magenta)); color: #071015; box-shadow: 0 12px 28px rgba(41, 182, 246, 0.18); }

.nav-links .cta-menu-mobile {
  background: linear-gradient(135deg, var(--cyan), var(--blue) 48%, var(--magenta));
  color: #071015;
  font-weight: 900;
  text-transform: uppercase;
  border-radius: 6px;
  text-align: center;
  margin: 10px 0;
  padding: 12px 20px;
  text-decoration: none;
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: 0 12px 28px rgba(41, 182, 246, 0.18);
}

.button:not(.nav-cta):not(.cta-menu-mobile):hover { 
  transform: translateY(-2px); 
  box-shadow: 0 16px 34px rgba(255, 0, 183, 0.22); 
}

.button.is-disabled {
    opacity: 0.5;
    cursor: not-allowed !important;
    pointer-events: auto; 
    filter: grayscale(1);
}

.nav-links a.nav-cta,
.nav-links a.nav-cta:hover,
.nav-links .cta-menu-mobile,
.nav-links .cta-menu-mobile:hover {
  transform: none !important;
  transition: none !important;
  box-shadow: 0 12px 28px rgba(41, 182, 246, 0.18) !important;
  background: linear-gradient(135deg, var(--cyan), var(--blue) 48%, var(--magenta)) !important;
  color: #071015 !important;
}

.button.secondary, .button.button-secondary { background: rgba(255,255,255,0.03); border-color: var(--line-strong); color: var(--ink); }
.button.youtube { background: var(--magenta); color: #fff; }
.nav-toggle { display: none; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 6px; color: #fff; background: transparent; cursor: pointer; }
.nav-toggle span, .nav-toggle::before, .nav-toggle::after { content: ""; display: block; width: 20px; height: 2px; margin: 5px auto; background: currentColor; }

.hero { min-height: calc(100vh - 82px); display: grid; align-items: center; padding: 40px 0 56px; border-bottom: 1px solid var(--line); }
.hero-shell { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(340px, 0.75fr); gap: 48px; align-items: center; }
.hero-inner { max-width: 780px; }
.hero-visual {
  position: relative;
  min-height: 420px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  overflow: hidden;
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.3);
  display: flex;
  align-items: flex-end;
}

.hero-visual-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.95;
  z-index: 1;
}

.hero-visual-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 7, 10, 0) 0%, rgba(5, 7, 10, 0.4) 100%);  
  z-index: 2;
  pointer-events: none;
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: 5% 10% 20% 10%;
  border: 1px solid rgba(41, 182, 246, 0.2);
  transform: perspective(500px) rotateX(48deg);
  box-shadow: inset 0 0 40px rgba(41, 182, 246, 0.1), 0 0 60px rgba(0, 198, 255, 0.08);
  z-index: 3;
  pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px);
  background-size: 100% 24px;
}

.signal {
  position: relative;
  width: 100%;
  height: 130px;
  padding: 0 32px 32px;
  display: flex;
  align-items: flex-end;
  gap: 8px;
  z-index: 4;
}

.signal span {
  flex: 1;
  min-width: 6px;
  height: 25%;
  background: linear-gradient(180deg, var(--hot), var(--blue) 60%, var(--cyan));
  border-radius: 4px 4px 2px 2px;
  box-shadow: 0 0 10px rgba(0, 198, 255, 0.3);
  transform-origin: bottom;
  animation: level 1.4s cubic-bezier(0.45, 0.05, 0.55, 0.95) infinite alternate;
}

.signal span:nth-child(2n) { animation-duration: 1.1s; animation-delay: -0.3s; }
.signal span:nth-child(3n) { animation-duration: 1.5s; animation-delay: -0.15s; }
.signal span:nth-child(4n) { animation-duration: 1.3s; animation-delay: -0.6s; }
.signal span:nth-child(5n) { animation-duration: 1.7s; animation-delay: -0.45s; }

@keyframes level {
  from { transform: scaleY(0.3); opacity: 0.6; filter: brightness(0.9); }
  to { transform: scaleY(1); opacity: 1; filter: brightness(1.2) drop-shadow(0 0 4px var(--cyan)); }
}

.section { padding: 86px 0; border-bottom: 1px solid var(--line); }
.section.compact { padding: 58px 0; }
.page-hero { padding: 50px 0 60px; border-bottom: 1px solid var(--line); }
.section-head { display: flex; justify-content: space-between; gap: 30px; align-items: end; margin-bottom: 42px; }
.section-head p { max-width: 520px; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 22px; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(310px, 1fr)); gap: 24px; }
.split, .contact-layout { display: grid; grid-template-columns: 1fr 0.82fr; gap: 32px; align-items: start; }
.button-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }

.feature-card, .service-club-card, .contact-box, .config-card, .config-panel, .preview-panel { padding: 28px; border: 1px solid var(--line); border-radius: 8px; background: rgba(13, 17, 24, 0.74); box-shadow: 0 18px 60px rgba(0,0,0,0.18); }
.service-club-card { display: flex; flex-direction: column; justify-content: space-between; min-height: 100%; }
.feature-card:hover, .service-club-card:hover { border-color: rgba(41,182,246,0.55); background: rgba(20, 26, 36, 0.82); }
.feature-icon-glow { width: 46px; height: 46px; margin-bottom: 20px; display: grid; place-items: center; border: 1px solid rgba(41,182,246,0.32); border-radius: 6px; color: var(--cyan); background: rgba(41,182,246,0.09); font-size: 0.95rem; font-weight: 900; }
.tag { display: inline-flex; align-items: center; min-height: 24px; padding: 4px 10px; border: 1px solid var(--line-strong); border-radius: 999px; color: var(--cyan); background: rgba(41,182,246,0.08); font-size: 0.68rem; font-weight: 850; text-transform: uppercase; }
.card-link, .portfolio-link { display: inline-flex; margin-top: 22px; color: var(--cyan); font-weight: 850; text-decoration: none; }
.portfolio-top { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
.portfolio-assets { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.9rem; line-height: 1.6; }

.config-layout { display: grid; grid-template-columns: minmax(0, 0.95fr) minmax(390px, 1.05fr); gap: 28px; align-items: start; }
.preview-panel { position: sticky; top: 106px; }
.form-section-title { margin: 28px 0 16px; color: var(--magenta); font-size: 0.75rem; font-weight: 900; letter-spacing: 0.16em; text-transform: uppercase; }
.form-section-title:first-child { margin-top: 0; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.form-grid label, .field-label { display: flex; flex-direction: column; gap: 8px; color: #d9e1ec; font-size: 0.76rem; font-weight: 850; letter-spacing: 0.06em; text-transform: uppercase; }
.form-grid label.full, .full { grid-column: 1 / -1; }
input, select, textarea { width: 100%; min-height: 46px; padding: 12px 13px; border: 1px solid var(--line); border-radius: 6px; color: var(--ink); background: var(--surface-2); font: inherit; font-size: 0.92rem; transition: border-color .2s, box-shadow .2s; }
textarea { min-height: 118px; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(41,182,246,0.14); }
select option { color: #fff; background: #101620; }
.check-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 10px; margin: 10px 0; }
.check-card { display: flex; align-items: start; gap: 10px; min-height: 54px; padding: 12px; border: 1px solid var(--line); border-radius: 6px; background: rgba(255,255,255,0.03); color: var(--muted); font-size: 0.88rem; text-transform: none; letter-spacing: 0; }
.check-card input { flex: 0 0 auto; width: 18px; height: 18px; min-height: 0; padding: 0; margin: 2px 0 0; accent-color: var(--magenta); cursor: pointer; }
.check-card span { display: grid; gap: 3px; min-width: 0; }
.check-card small { display: block; color: var(--soft); line-height: 1.35; }
.check-card:has(input:checked) { border-color: rgba(255,0,183,0.72); background: linear-gradient(135deg, rgba(0,198,255,0.12), rgba(255,0,183,0.12)); color: #fff; box-shadow: 0 0 0 1px rgba(255,0,183,0.16), 0 12px 32px rgba(0,0,0,0.22); }

.inline-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 14px; }
.metric { 
  padding: 12px; 
  border: 1px solid var(--line); 
  border-radius: 6px; 
  background: rgba(255,255,255,0.03); 
  display: flex;
  flex-direction: column;
}
.metric span:not(.unit) { 
  color: var(--soft); 
  font-size: 0.72rem; 
  text-transform: uppercase; 
  margin-bottom: 2px;
}
.metric strong { 
  color: #ffffff; 
  font-size: 1rem; 
  font-weight: 700;
  line-height: 1;
}
.metric strong .unit {
  display: inline; 
  margin-left: 4px; 
  color: #fff; 
  font-size: 0.95rem; 
  font-weight: 400;
}

.checkbox-group {
  margin: 20px 0;
  padding: 4px 0;
  transform: none !important;
  transition: none !important;
}

.checkbox-group label {
  display: flex;
  align-items: flex-start; 
  gap: 12px;
  font-size: 0.88rem;
  color: var(--muted);
  cursor: pointer;
  line-height: 1.4;
  user-select: none;
  transform: none !important;
  transition: none !important;
}

.checkbox-group label:hover,
.checkbox-group label:active,
.checkbox-group label:focus {
  transform: none !important;
}

.checkbox-group input[type="checkbox"] {
  accent-color: var(--neon-primary);
  
  min-height: 0 !important;   
  height: 16px !important;        
  width: 16px !important;        
  padding: 0 !important;         
  margin: 2px 0 0 0 !important; 
  
  flex-shrink: 0;
  cursor: pointer;
  transform: none !important;
  transition: none !important;
}

.checkbox-group a {
  color: var(--neon-primary);
  text-decoration: underline;
  font-weight: 600;
  display: inline-block;
}

.checkbox-group a:hover {
  filter: brightness(1.2);
  transform: none !important;
}

.checkbox-group.has-error label {
  color: #ff4d4d; 
}

.checkbox-group.has-error input[type="checkbox"] {
  outline: 2px solid #ff4d4d; 
  outline-offset: 2px;
  accent-color: #ff4d4d;
}

.checkbox-error-text {
  display: none; 
  margin-top: 8px;
  font-size: 0.82rem;
  color: #ff4d4d;
  font-weight: 600;
  line-height: 1.3;
}

.limit-error { display: none; margin-top: 12px; padding: 12px; border-left: 3px solid var(--magenta); color: #ffd2f4; background: rgba(255,0,183,0.08); font-size: 0.88rem; }
.canvas-container { width: 100%; overflow: hidden; border: 1px solid var(--line-strong); border-radius: 8px; background: #020407; box-shadow: inset 0 0 80px rgba(41,182,246,0.08); }
#blueprint-canvas { display: block; width: 100%; height: auto; touch-action: manipulation; cursor: default; }
#audio-calculator-result, .config-summary, .disclaimer-box { margin-bottom: 16px; padding: 16px; border: 1px solid var(--line); border-radius: 8px; background: rgba(255,255,255,0.035); }
.calc-algo-title { margin-bottom: 8px; color: var(--cyan); font-size: 0.72rem; font-weight: 900; letter-spacing: 0.14em; text-transform: uppercase; }
.summary-line { display: flex; justify-content: space-between; gap: 14px; padding: 12px 0; border-bottom: 1px solid var(--line); color: var(--muted); }
.summary-line:last-child { border-bottom: 0; }
.summary-line strong { color: #fff; text-align: right; }
.summary-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.preview-instruction { margin-bottom: 14px; color: var(--muted); font-size: 0.9rem; }
.disclaimer-box { color: #c8d0dd; font-size: 0.9rem; line-height: 1.6; }

.tab-buttons { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-bottom: 36px; }
.tab-button { min-height: 44px; padding: 0 18px; border: 1px solid var(--line); border-radius: 6px; color: var(--muted); background: rgba(255,255,255,0.035); font-weight: 850; text-transform: uppercase; cursor: pointer; }
.tab-button:hover, .tab-button[aria-selected="true"] { border-color: var(--cyan); color: #fff; background: rgba(41, 182, 246, 0.1); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }
.item-list { list-style: none; padding: 0; margin: 0; }
.equipment-item { display: grid; grid-template-columns: 1fr auto; gap: 12px; align-items: center; padding: 14px 0; border-bottom: 1px solid var(--line); }
.equipment-item:last-child { border-bottom: 0; }
.equipment-item small { display: block; margin-top: 4px; color: var(--muted); }

.gallery-item {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--line);
  aspect-ratio: 4 / 3;
  background: var(--surface);
  box-shadow: 0 18px 60px rgba(0,0,0,0.18);
  cursor: pointer;
  transition: border-color 0.3s ease;
}
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease, filter 0.5s ease;
  filter: brightness(0.85);
}
.gallery-item:hover {
  border-color: rgba(41,182,246,0.55);
  background: rgba(20, 26, 36, 0.82);
}
.gallery-item:hover img {
  transform: scale(1.05);
  filter: brightness(1.1);
}

/* --- Stili per Ingrandimento Immagine (Lightbox Modal) --- */
.lightbox-modal {
  display: none;
  position: fixed;
  z-index: 9999;
  inset: 0;
  background-color: rgba(5, 7, 10, 0.9);
  backdrop-filter: blur(12px);
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
  cursor: zoom-out;
  padding: 20px;
}
.lightbox-modal.open {
  display: flex;
  opacity: 1;
}
.lightbox-content {
  max-width: 90%;
  max-height: 85vh;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.7);
  transform: scale(0.95);
  transition: transform 0.3s ease;
  object-fit: contain;
}
.lightbox-modal.open .lightbox-content {
  transform: scale(1);
}
.lightbox-close {
  position: absolute;
  top: 24px;
  right: 24px;
  color: var(--muted);
  font-size: 2rem;
  font-weight: 300;
  cursor: pointer;
  transition: color 0.2s;
  line-height: 1;
}
.lightbox-close:hover {
  color: #fff;
}

.site-footer {
  background-color: #05070a;
  color: #bfc9dc;
  padding: 60px 0 30px 0;
  font-family: 'Inter', sans-serif;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 40px;
  margin-bottom: 50px;
}
.footer-logo-link {
  display: flex;
  align-items: center;
  gap: 15px;
  text-decoration: none;
  color: #ffffff;
  margin-bottom: 20px;
}
.footer-logo { height: 45px; width: auto; object-fit: contain; }
.brand-text-wrapper .brand-name { font-weight: 700; font-size: 1.1rem; letter-spacing: 0.05em; }
.brand-text-wrapper .brand-line { font-size: 0.75rem; color: #00c6ff; text-transform: uppercase; }
.footer-address { font-size: 0.9rem; line-height: 1.6; margin-bottom: 12px; color: #a0aec0; }
.footer-piva { font-size: 0.8rem; color: #718096; }
.footer-title { color: #ffffff; font-size: 0.85rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 22px; position: relative; }
.footer-links a { display: block; color: #bfc9dc; text-decoration: none; margin-bottom: 12px; font-size: 0.95rem; transition: color 0.2s ease; }
.footer-links a:hover { color: #00c6ff; }
.footer-social-icons { display: flex; gap: 16px; align-items: center; }
.social-icon-link { color: #bfc9dc; transition: color 0.2s ease, transform 0.2s ease; display: inline-flex; align-items: center; justify-content: center; }
.social-icon-link:hover { color: #00c6ff; transform: translateY(-2px); }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.08); padding-top: 20px; display: flex; flex-direction: column; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px; }
.footer-copyright-info { font-size: 0.85rem; color: #718096; display: flex; align-items: center; gap: 8px; }
.face-site-credit { display: flex; font-size: 13px; align-items: center; justify-content: center; gap: 0px; text-decoration: none; opacity: 0.6; transition: opacity 0.3s; }
.face-site-credit:hover { opacity: 1; }
.footer-credit-logo { height: 80px; width: auto; object-fit: contain; }

.brands-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 20px;
  margin-top: 30px;
}
.brand-logo-item {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(13, 17, 24, 0.74);
  border: 1px solid var(--line);
  border-radius: 8px;
  min-height: 100px;
  box-shadow: 0 18px 60px rgba(0,0,0,0.18);
  transition: border-color 0.3s ease, background 0.3s ease;
}
.brand-logo-item:hover {
  border-color: rgba(41,182,246,0.55);
  background: rgba(20, 26, 36, 0.82);
}
.brand-logo-item img {
  max-width: 100%;
  max-height: 90px;
  object-fit: contain;
  filter: invert(1) brightness(1.2);
  opacity: 1; 
  transition: opacity 0.3s ease; 
}

.brand-logo-item:hover img {
  opacity: 0.8; 
}

@media (max-width: 1040px) {
  .nav-cta { display: none; }
  .nav-links a { padding-inline: 8px; }
  .config-layout { grid-template-columns: 1fr; }
  .preview-panel { position: relative; top: 0; }
}

@media (max-width: 860px) {
  .hero-shell, .split, .contact-layout, .section-head { grid-template-columns: 1fr; display: grid; align-items: start; }
  .hero { min-height: auto; }
  .hero-visual { min-height: 300px; }
  .signal { padding: 0 20px 20px; height: 100px; gap: 6px; }
  .nav-toggle { display: block; }
  .nav-links { position: fixed; inset: 82px 0 auto; display: none; padding: 18px 16px 24px; border-bottom: 1px solid var(--line); background: rgba(5,7,10,0.98); flex-direction: column; align-items: stretch; }
  .nav-links.open { display: flex; }
  .nav-links a { min-height: 46px; display: flex; align-items: center; justify-content: center; }
}

@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 2fr; gap: 35px; }
  .footer-bottom { flex-direction: column; text-align: center; align-items: center; }
  .footer-copyright-info { flex-direction: column; gap: 4px; }
  .footer-dot { display: none; }
}

@media (max-width: 620px) {
  .section { padding: 62px 0; }
  .page-hero { padding: 30px 0 46px; }
  .brand { display: flex; flex-direction: row; align-items: center; gap: 5px; }
  .brand span { display: flex; flex-direction: column; align-items: flex-start; line-height: 1.2; }
  .brand-name { font-size: 0.95rem; letter-spacing: 0.12em; }
  .brand-line { display: block; font-size: 0.65rem; opacity: 0.7; letter-spacing: 0.02em; margin-top: 2px; }
  .brand-mark { width: 50px; height: auto; }
  .form-grid, .check-grid, .inline-metrics { grid-template-columns: 1fr; }
  .feature-card, .service-club-card, .contact-box, .config-panel, .preview-panel { padding: 20px; }
  .button { width: 100%; }
  .footer-bottom { text-transform: none; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .footer-column:first-child { grid-column: 1 / -1; text-align: center; }
  .footer-links a { font-size: 0.85rem; }
  .brands-grid {grid-template-columns: repeat(2, 1fr);gap: 12px;}
}