/* HTS Electronique — Design system */
:root {
  --color-bg: #f7f6f3;
  --color-bg-alt: #eeedea;
  --color-surface: #ffffff;
  --color-text: #1e2428;
  --color-text-muted: #5a6268;
  --color-graphite: #2d3439;
  --color-accent: #0d6b63;
  --color-accent-hover: #0a554f;
  --color-accent-light: #e0f2f0;
  --color-copper: #c47a2c;
  --color-copper-light: #f5ebe0;
  --color-border: #d8d6d0;
  --color-error: #b91c1c;
  --color-success: #15803d;
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 1px 3px rgba(30, 36, 40, 0.06);
  --shadow-md: 0 4px 16px rgba(30, 36, 40, 0.08);
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2.5rem;
  --space-2xl: 4rem;
  --max-width: 72rem;
  --transition: 0.2s ease;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
}

img { max-width: 100%; height: auto; display: block; }
.illustration-img {
  width: 100%;
  height: auto;
}
.hero-illustration {
  margin: 0;
  max-width: 520px;
  justify-self: center;
}
.hero-illustration .illustration-img {
  max-width: 520px;
}
.section figure {
  margin: 0;
}
.section figure.illustration-centered {
  max-width: 480px;
  margin-inline: auto;
}
.section figure.illustration-banner {
  max-width: 600px;
  margin-inline: auto;
}
.section.split figure .illustration-img {
  max-width: 480px;
  margin-inline: auto;
}
.illustration-board-repair,
.section.split figure .illustration-board-repair {
  max-width: 400px;
}
.section-dark figure .illustration-img {
  border-color: rgba(255, 255, 255, 0.15);
}
.hero-illustration img,
.section figure img,
.illustration-img {
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  background: var(--color-surface);
}
a { color: var(--color-accent); text-decoration-thickness: 1px; }
a:hover { color: var(--color-accent-hover); }

.container { width: min(100% - 2rem, var(--max-width)); margin-inline: auto; }
.narrow { max-width: 42rem; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
.skip-link { position: absolute; left: -9999px; z-index: 999; padding: 0.5rem 1rem; background: var(--color-graphite); color: #fff; }
.skip-link:focus { left: 1rem; top: 1rem; }

/* Header */
.site-header { background: var(--color-surface); border-bottom: 1px solid var(--color-border); position: sticky; top: 0; z-index: 100; }
.header-inner { display: flex; align-items: center; gap: var(--space-md); padding: var(--space-sm) 0; flex-wrap: wrap; }
.logo { display: flex; align-items: center; gap: 0.5rem; color: var(--color-text); text-decoration: none; font-weight: 500; }
.logo-mark { background: var(--color-accent); color: #fff; font-size: 0.75rem; font-weight: 700; padding: 0.35rem 0.5rem; border-radius: 4px; }
.logo-text strong { color: var(--color-accent); font-weight: 600; }
.main-nav ul { display: flex; flex-wrap: wrap; gap: 0.25rem 1rem; list-style: none; margin: 0; padding: 0; align-items: center; }
.main-nav a:not(.btn) { color: var(--color-text); text-decoration: none; font-size: 0.9rem; padding: 0.35rem 0; }
.main-nav a:not(.btn):hover { color: var(--color-accent); }
.main-nav .btn { padding: 0.5rem 1rem; min-height: 38px; line-height: 1.3; white-space: nowrap; }
.main-nav .btn-primary { color: #fff; }
.main-nav .btn-primary:hover { color: #fff; background: var(--color-accent-hover); }
.header-phone { display: none; }
.nav-toggle { display: none; background: none; border: 1px solid var(--color-border); border-radius: var(--radius); padding: 0.5rem; cursor: pointer; margin-left: auto; }
.nav-toggle span, .nav-toggle::before, .nav-toggle::after { display: block; width: 1.25rem; height: 2px; background: var(--color-text); }
.nav-toggle::before, .nav-toggle::after { content: ""; margin: 4px 0; }

@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .main-nav { display: none; width: 100%; }
  .main-nav.is-open { display: block; }
  .main-nav ul { flex-direction: column; align-items: stretch; padding: var(--space-sm) 0; }
  .main-nav .btn { width: 100%; justify-content: center; }
  .header-phone { display: inline-flex; margin-left: auto; }
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 0.65rem 1.25rem; border-radius: var(--radius); font-size: 0.95rem; font-weight: 500;
  border: 1px solid transparent; cursor: pointer; text-decoration: none; min-height: 44px;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.btn-primary { background: var(--color-accent); color: #fff; }
.btn-primary:hover { background: var(--color-accent-hover); color: #fff; }
.btn-primary:disabled,
.btn-primary[disabled] {
  background: var(--color-border);
  color: var(--color-text-muted);
  cursor: not-allowed;
  opacity: 1;
}
.btn-primary:disabled:hover,
.btn-primary[disabled]:hover {
  background: var(--color-border);
  color: var(--color-text-muted);
}
.btn-outline { background: transparent; border-color: var(--color-border); color: var(--color-text); }
.btn-outline:hover { border-color: var(--color-accent); color: var(--color-accent); }
.btn-accent { background: var(--color-copper); color: #fff; }
.btn-accent:hover { background: #a86824; color: #fff; }
.btn-sm { padding: 0.4rem 0.85rem; font-size: 0.85rem; min-height: 36px; }
.btn-lg { padding: 0.85rem 1.75rem; font-size: 1.05rem; }
.btn-block { width: 100%; }

/* Sections */
.section { padding: var(--space-2xl) 0; }
.section-alt { background: var(--color-bg-alt); }
.section-dark { background: var(--color-graphite); color: #e8eaec; }
.section-dark a { color: var(--color-accent-light); }
h1, h2, h3 { line-height: 1.25; color: var(--color-graphite); }
.section-dark h1, .section-dark h2 { color: #fff; }
.lead { font-size: 1.125rem; color: var(--color-text-muted); }
.eyebrow { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--color-accent); font-weight: 600; }
.disclaimer { font-size: 0.9rem; color: var(--color-text-muted); border-left: 3px solid var(--color-copper); padding-left: var(--space-md); }
.alert { padding: var(--space-md); border-radius: var(--radius); margin-bottom: var(--space-md); }
.alert-error { background: #fef2f2; color: var(--color-error); border: 1px solid #fecaca; }
.alert-success { background: #f0fdf4; color: var(--color-success); border: 1px solid #bbf7d0; }

/* Hero */
.hero { padding: var(--space-xl) 0 var(--space-2xl); background: linear-gradient(180deg, var(--color-surface) 0%, var(--color-bg) 100%); }
.hero-grid { display: grid; gap: var(--space-xl); align-items: center; }
@media (min-width: 768px) { .hero-grid { grid-template-columns: 1fr 1fr; } }
.hero h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); margin-bottom: var(--space-md); }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-sm); margin-top: var(--space-lg); }

/* Cards */
.card-grid { display: grid; gap: var(--space-lg); grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-lg); box-shadow: var(--shadow); }
.card h3 { margin-top: 0; font-size: 1.1rem; }
.card-link { font-size: 0.9rem; font-weight: 500; }

.split { display: grid; gap: var(--space-xl); align-items: center; }
@media (min-width: 768px) { .split { grid-template-columns: 1fr 1fr; } .split.reverse figure { order: -1; } }

/* Steps */
.steps-list { counter-reset: step; list-style: none; padding: 0; }
.steps-list li { counter-increment: step; padding: var(--space-md) 0 var(--space-md) 3rem; position: relative; border-bottom: 1px solid var(--color-border); }
.steps-list li::before { content: counter(step); position: absolute; left: 0; width: 2rem; height: 2rem; background: var(--color-accent-light); color: var(--color-accent); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 600; font-size: 0.9rem; }

/* FAQ */
.faq-item { border: 1px solid var(--color-border); border-radius: var(--radius); margin-bottom: var(--space-sm); background: var(--color-surface); }
.faq-item summary { padding: var(--space-md); cursor: pointer; font-weight: 500; list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item > div { padding: 0 var(--space-md) var(--space-md); }

/* Footer */
.site-footer { background: var(--color-graphite); color: #c8ccd0; padding: var(--space-2xl) 0 var(--space-lg); margin-top: var(--space-xl); }
.footer-grid { display: grid; gap: var(--space-lg); grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.footer-brand { font-size: 1.1rem; font-weight: 600; color: #fff; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links a { color: #c8ccd0; text-decoration: none; }
.footer-bottom { border-top: 1px solid #3d454b; margin-top: var(--space-lg); padding-top: var(--space-md); font-size: 0.85rem; }

/* Forms */
.field { margin-bottom: var(--space-md); }
.field label { display: block; font-weight: 500; margin-bottom: var(--space-xs); font-size: 0.9rem; }
.field input, .field select, .field textarea {
  width: 100%; padding: 0.65rem 0.75rem; border: 1px solid var(--color-border); border-radius: var(--radius);
  font: inherit; background: var(--color-surface); min-height: 44px;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: 2px solid var(--color-accent); outline-offset: 1px; border-color: var(--color-accent);
}
.grid-2 { display: grid; gap: var(--space-md); }
.grid-3 { display: grid; gap: var(--space-md); }
@media (min-width: 600px) { .grid-2 { grid-template-columns: 1fr 1fr; } .grid-3 { grid-template-columns: repeat(3, 1fr); } }
.hp-field { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }
.hint { font-size: 0.85rem; color: var(--color-text-muted); }

/* Inquiry form */
.form-section { border: none; padding: 0; margin: 0 0 var(--space-xl); }
.form-section legend { font-size: 1.05rem; font-weight: 600; margin-bottom: var(--space-md); padding: 0; }
.contact-hint { margin-top: -0.25rem; margin-bottom: var(--space-md); }
.label-recommended { font-weight: 400; color: var(--color-text-muted); font-size: 0.85rem; }
.form-legal { font-size: 0.75rem; color: var(--color-text-muted); line-height: 1.5; margin: var(--space-lg) 0; }
.form-legal-checkbox { display: flex; gap: 0.5rem; align-items: flex-start; font-weight: 400; margin-bottom: var(--space-sm); }
.form-legal-checkbox input { margin-top: 0.15rem; min-height: auto; width: auto; flex-shrink: 0; }
.form-legal-notice { margin: 0; }
.form-legal a { color: inherit; }
.form-nav-submit { justify-content: flex-end; }
.file-input-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.file-list {
  list-style: none;
  padding: 0;
  margin: var(--space-sm) 0 0;
  font-size: 0.85rem;
}
.file-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: 0.35rem 0;
  border-bottom: 1px solid var(--color-border);
}
.file-list-item:last-child { border-bottom: none; }
.file-list-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.file-list-remove {
  flex-shrink: 0;
  border: none;
  background: none;
  color: var(--color-accent);
  font: inherit;
  font-size: 0.8rem;
  cursor: pointer;
  text-decoration: underline;
  padding: 0.25rem;
}
.file-list-remove:hover { color: var(--color-accent-hover); }
.form-steps { display: flex; flex-wrap: wrap; gap: 0.25rem; margin-bottom: var(--space-lg); }
.step-tab { flex: 1 1 auto; min-width: 4rem; padding: 0.5rem; font-size: 0.75rem; border: 1px solid var(--color-border); background: var(--color-surface); border-radius: var(--radius); cursor: pointer; }
.step-tab.active { background: var(--color-accent); color: #fff; border-color: var(--color-accent); }
.form-step { display: none; border: none; padding: 0; margin: 0; }
.form-step.active { display: block; }
.form-nav { display: flex; gap: var(--space-sm); margin-top: var(--space-lg); justify-content: space-between; }
.consent-list label { display: flex; gap: 0.5rem; margin-bottom: var(--space-sm); font-weight: 400; align-items: flex-start; }
.checkbox-label input { margin-top: 0.25rem; min-height: auto; width: auto; flex-shrink: 0; }
.checkbox-inline, .field-checkbox .checkbox-inline {
  display: flex; align-items: center; gap: 0.5rem; font-weight: 400;
}
.field-checkbox input[type="checkbox"] {
  width: 1.125rem; height: 1.125rem; min-height: auto; margin: 0; flex-shrink: 0;
}
.field-checkbox { margin-bottom: var(--space-md); }
.delivery-options { flex-direction: column; gap: var(--space-sm); }
.radio-card {
  display: flex; align-items: flex-start; gap: 0.75rem; padding: var(--space-md);
  border: 1px solid var(--color-border); border-radius: var(--radius); cursor: pointer;
  background: var(--color-surface); transition: border-color 0.15s;
}
.radio-card:has(input:checked) { border-color: var(--color-accent); background: var(--color-accent-light, #f0faf9); }
.radio-card input { margin-top: 0.2rem; min-height: auto; width: auto; flex-shrink: 0; }
.radio-card strong { display: block; margin-bottom: 0.15rem; }
.radio-card small { display: block; color: var(--color-text-muted); font-size: 0.85rem; line-height: 1.4; }
.field-label { display: block; font-weight: 600; margin-bottom: var(--space-sm); }
.form-summary { background: var(--color-bg-alt); padding: var(--space-md); border-radius: var(--radius); margin-bottom: var(--space-md); font-size: 0.9rem; }
.reference-badge { font-size: 1.25rem; background: var(--color-accent-light); padding: var(--space-md); border-radius: var(--radius); display: inline-block; }

/* Breadcrumb */
.breadcrumb { padding: var(--space-md) 0; font-size: 0.85rem; }
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: 0.5rem; list-style: none; padding: 0; margin: 0; }
.breadcrumb li:not(:last-child)::after { content: "›"; margin-left: 0.5rem; color: var(--color-text-muted); }

/* Services page */
.service-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-lg); margin-bottom: var(--space-lg); }
.service-summary {
  font-size: 1.05rem;
  line-height: 1.55;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-border);
}
.service-body h3 { font-size: 0.95rem; margin-top: var(--space-md); margin-bottom: var(--space-xs); }
.service-category { font-size: 0.8rem; color: var(--color-accent); font-weight: 600; text-transform: uppercase; letter-spacing: 0.03em; }

/* Pricing */
.price-grid { display: grid; gap: var(--space-md); grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
.price-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); padding: var(--space-md); }
.price-value { font-size: 1.25rem; font-weight: 600; color: var(--color-copper); }
.price-table { width: 100%; border-collapse: collapse; background: var(--color-surface); border-radius: var(--radius-lg); overflow: hidden; }
.price-table th, .price-table td { padding: var(--space-md); border-bottom: 1px solid var(--color-border); text-align: left; }
.price-table th { background: var(--color-bg-alt); font-size: 0.85rem; }
@media (max-width: 768px) {
  .price-table thead { display: none; }
  .price-table tr { display: block; margin-bottom: var(--space-md); border: 1px solid var(--color-border); border-radius: var(--radius); }
  .price-table td { display: block; border: none; }
  .price-table td::before { content: attr(data-label) ": "; font-weight: 600; }
}

/* CTA */
.cta-banner { background: var(--color-accent); color: #fff; padding: var(--space-2xl) 0; }
.cta-banner h2 { color: #fff; }
.cta-banner .btn-primary { background: #fff; color: var(--color-accent); }
.text-center { text-align: center; }
.mt-lg { margin-top: var(--space-lg); }
.check-list { list-style: none; padding: 0; }
.check-list li { padding-left: 1.5rem; position: relative; margin-bottom: 0.5rem; }
.check-list li::before { content: "✓"; position: absolute; left: 0; color: var(--color-accent); font-weight: 700; }

.process-lead {
  margin-bottom: var(--space-lg);
}
.process-lead p {
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--color-text-muted);
  margin: 0;
}

.process-timeline {
  margin-top: 0;
  display: grid;
  gap: var(--space-md);
}
.process-step {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow);
}
.process-step h2 {
  margin: 0 0 var(--space-xs);
  font-size: 1.1rem;
}
.process-step p {
  margin: 0;
  color: var(--color-text-muted);
}
.step-num {
  flex-shrink: 0;
  width: 2.25rem;
  height: 2.25rem;
  background: var(--color-accent-light);
  color: var(--color-accent);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.95rem;
  line-height: 1;
}

.legal-content h2 { margin-top: var(--space-xl); font-size: 1.15rem; }
.notice { background: var(--color-copper-light); border: 1px solid #e8d4bc; padding: var(--space-md); border-radius: var(--radius); margin-top: var(--space-md); }