/* SARL TEQ — plan technique / architectural. */

:root {
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --color-bg: #F7F6F2;
  --color-panel: #FFFFFF;
  --color-ink: #1C2B36;
  --color-ink-soft: #46545F;
  --color-line: #C9C5B8;
  --color-cta: #C1440E;
  --color-cta-ink: #FFFFFF;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --radius: 0;
  --duration: 220ms;
  --header-h: 64px;
  --mobile-actions-h: 56px;
  --max-w: 1200px;
}

*, *::before, *::after {
  box-sizing: border-box;
  border-radius: var(--radius);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-weight: 400;
  background: var(--color-bg);
  color: var(--color-ink);
  line-height: 1.55;
  padding-bottom: 0;
}

h1, h2, h3, .btn, .step-index, .brand, .eyebrow, .placeholder-label {
  font-weight: 700;
}

h1 { font-size: clamp(2rem, 4vw, 2.75rem); margin: 0 0 var(--space-2); line-height: 1.1; }
h2 { font-size: clamp(1.4rem, 2.6vw, 1.9rem); margin: 0 0 var(--space-2); }
h3 { font-size: 1.1rem; margin: 0 0 var(--space-1); }
p { margin: 0 0 var(--space-2); }

a { color: inherit; }

img { display: none; }

section {
  padding: var(--space-5) var(--space-3);
  max-width: var(--max-w);
  margin: 0 auto;
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-ink);
  color: #fff;
  padding: 0.75rem 1rem;
  z-index: 1000;
  text-decoration: none;
  font-weight: 700;
}
.skip-link:focus {
  left: var(--space-2);
  top: var(--space-2);
}

:focus-visible {
  outline: 3px solid var(--color-cta);
  outline-offset: 2px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
  background: var(--color-bg);
  border-bottom: 2px solid var(--color-ink);
}
.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  min-height: var(--header-h);
}
.brand {
  font-weight: 700;
  font-size: 1.1rem;
  text-decoration: none;
  letter-spacing: 0.02em;
}
.site-nav ul {
  display: flex;
  gap: var(--space-3);
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}
.site-nav a {
  color: var(--color-ink);
  text-decoration: none;
  font-weight: 700;
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
  transition: border-color var(--duration) ease;
}
.site-nav a:hover, .site-nav a:focus-visible {
  border-color: var(--color-cta);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.phone-link {
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--color-line);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}
.phone-link:hover, .phone-link:focus-visible {
  border-color: var(--color-cta);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.75rem 1.25rem;
  font-weight: 700;
  text-decoration: none;
  border: 2px solid var(--color-ink);
  color: var(--color-ink);
  background: transparent;
  cursor: pointer;
  font-family: var(--font);
  font-size: 1rem;
  transition: background var(--duration) ease, color var(--duration) ease, border-color var(--duration) ease;
}
.btn-outline:hover, .btn-outline:focus-visible {
  background: var(--color-ink);
  color: #fff;
}
.btn-cta {
  background: var(--color-cta);
  border-color: var(--color-cta);
  color: var(--color-cta-ink);
}
.btn-cta:hover, .btn-cta:focus-visible {
  background: var(--color-ink);
  border-color: var(--color-ink);
}

/* Hero */
.hero {
  padding-top: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-line);
}
.hero-grid {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: var(--space-4);
  align-items: center;
}
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  color: var(--color-cta);
  margin: 0 0 var(--space-1);
}
.hero-lead {
  font-size: 1.15rem;
  max-width: 40ch;
  color: var(--color-ink-soft);
}
.hero-cta-row {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin: var(--space-3) 0;
}
.fact-panel {
  border: 1px solid var(--color-ink);
  background: var(--color-panel);
  padding: var(--space-3);
  display: grid;
  gap: var(--space-2);
  margin: 0;
}
.fact-panel .fact {
  display: flex;
  justify-content: space-between;
  gap: var(--space-2);
  border-bottom: 1px dashed var(--color-line);
  padding-bottom: 0.4rem;
}
.fact-panel .fact:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.fact-panel dt {
  font-weight: 700;
}
.fact-panel dd {
  margin: 0;
  text-align: right;
}
.hero-diagram {
  color: var(--color-ink);
}
.hero-diagram svg {
  width: 100%;
  height: auto;
  display: block;
}

@media (max-width: 860px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .hero-diagram {
    order: -1;
    max-width: 280px;
    margin: 0 auto;
  }
}

/* Trust strip */
.trust-strip {
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-line);
}
.trust-strip ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-2);
}
.trust-strip li {
  border-left: 3px solid var(--color-cta);
  padding-left: var(--space-2);
  font-weight: 700;
  font-size: 0.95rem;
}

/* Services */
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-3);
}
.service-card {
  border: 1px solid var(--color-line);
  background: var(--color-panel);
  padding: var(--space-3);
}
.services-more a {
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--color-cta);
}
.services-source-list {
  columns: 2;
  column-gap: var(--space-4);
  padding-left: 1.2rem;
}
@media (max-width: 640px) {
  .services-source-list { columns: 1; }
}
.disclaimer {
  color: var(--color-ink-soft);
  font-size: 0.9rem;
  border-top: 1px dashed var(--color-line);
  padding-top: var(--space-2);
}

/* Realisations placeholders */
.placeholder-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-3);
}
.placeholder-card {
  border: 2px dashed var(--color-line);
  background: var(--color-panel);
  min-height: 180px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: var(--space-1);
  padding: var(--space-3);
  color: var(--color-ink-soft);
}
.placeholder-label {
  color: var(--color-ink);
}
.placeholder-sub {
  font-size: 0.9rem;
}

/* Process */
.process-steps {
  list-style: none;
  margin: var(--space-3) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-3);
}
.process-steps li {
  border-top: 3px solid var(--color-ink);
  padding-top: var(--space-2);
}
.step-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border: 2px solid var(--color-cta);
  color: var(--color-cta);
  margin-bottom: var(--space-1);
}
.step-title {
  display: block;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

/* Feedback / FAQ */
.feedback, .faq {
  border-top: 1px solid var(--color-line);
}
.faq-list {
  margin-top: var(--space-3);
  display: grid;
  gap: var(--space-2);
}
.faq-item {
  border: 1px solid var(--color-line);
  background: var(--color-panel);
  padding: var(--space-2) var(--space-3);
}
.faq-item summary {
  font-weight: 700;
  cursor: pointer;
  min-height: 44px;
  display: flex;
  align-items: center;
}
.faq-item p {
  margin-top: var(--space-2);
  margin-bottom: 0;
}

/* Contact form */
.contact-form {
  display: grid;
  gap: var(--space-3);
  max-width: 560px;
  margin-top: var(--space-3);
}
.form-note {
  color: var(--color-ink-soft);
  font-size: 0.9rem;
}
.form-field {
  display: grid;
  gap: 0.4rem;
}
.form-field label {
  font-weight: 700;
}
.form-field input[type="text"],
.form-field input[type="tel"],
.form-field textarea {
  font-family: var(--font);
  font-size: 1rem;
  padding: 0.75rem;
  border: 1px solid var(--color-ink);
  background: var(--color-panel);
  color: var(--color-ink);
  min-height: 44px;
}
.form-field textarea {
  min-height: 120px;
  resize: vertical;
}
.form-field-consent {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: 0.6rem;
}
.form-field-consent input[type="checkbox"] {
  width: 20px;
  height: 20px;
  margin-top: 0.2rem;
  flex-shrink: 0;
}
.form-field-consent label {
  font-weight: 400;
}

/* Legal pages */
.legal-content h2 {
  margin-top: var(--space-4);
}

/* Footer */
.site-footer {
  border-top: 2px solid var(--color-ink);
  padding: var(--space-4) var(--space-3);
  margin-top: var(--space-4);
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-3);
}
.footer-brand {
  font-weight: 700;
}
.footer-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}
.footer-nav a {
  text-decoration: none;
  border-bottom: 1px solid var(--color-line);
}
.footer-note {
  max-width: var(--max-w);
  margin: var(--space-3) auto 0;
  font-size: 0.85rem;
  color: var(--color-ink-soft);
}

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--duration) ease, transform var(--duration) ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Mobile fixed dual actions + call FAB */
.mobile-actions {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  display: none;
  z-index: 600;
  border-top: 2px solid var(--color-ink);
  background: var(--color-bg);
  height: var(--mobile-actions-h);
  padding-bottom: env(safe-area-inset-bottom);
}
.mobile-action {
  flex: 1;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  text-decoration: none;
  color: var(--color-ink);
}
.mobile-action:first-child {
  border-right: 1px solid var(--color-line);
}
.mobile-action-cta {
  background: var(--color-cta);
  color: var(--color-cta-ink);
}
.call-fab {
  position: fixed;
  right: var(--space-2);
  bottom: calc(var(--mobile-actions-h) + var(--space-2) + env(safe-area-inset-bottom));
  width: 52px;
  height: 52px;
  display: none;
  align-items: center;
  justify-content: center;
  background: var(--color-ink);
  color: #fff;
  border: 2px solid var(--color-ink);
  z-index: 650;
  text-decoration: none;
}
.call-fab svg {
  width: 22px;
  height: 22px;
}

@media (max-width: 860px) {
  body {
    padding-bottom: calc(var(--mobile-actions-h) + env(safe-area-inset-bottom));
  }
  .mobile-actions {
    display: flex;
  }
  .call-fab {
    display: flex;
  }
}