/* =========================================================
   NM-CORE — Design system
   Display : Space Grotesk (technique, géométrique)
   Body    : Inter
   Mono    : JetBrains Mono (labels de composants, prix, tags)
   ========================================================= */

:root {
  --bg: #F6F8FA;
  --bg-alt: #EDF1F6;
  --bg-card: #FFFFFF;
  --ink: #10151F;
  --ink-soft: #4B5768;
  --ink-faint: #8792A3;
  --line: #D7DEE8;
  --line-strong: #B9C4D3;
  --accent: #2F6FED;
  --accent-ink: #123A9C;
  --accent-soft: #E4EDFF;
  --circuit: #16C79A;
  --circuit-soft: #DEFBF3;
  --warn: #E0572B;

  --radius-s: 6px;
  --radius-m: 12px;
  --radius-l: 20px;

  --shadow-card: 0 1px 2px rgba(16, 21, 31, 0.04), 0 8px 24px rgba(16, 21, 31, 0.06);
  --shadow-hover: 0 4px 10px rgba(16, 21, 31, 0.06), 0 16px 36px rgba(16, 21, 31, 0.10);

  --maxw: 1180px;
}

@media (prefers-reduced-motion: no-preference) {
  :root { --motion: 1; }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  font-weight: 600;
  line-height: 1.12;
  margin: 0;
  letter-spacing: -0.01em;
}

p { margin: 0; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { margin: 0; padding: 0; list-style: none; }
button { font-family: inherit; cursor: pointer; }

.mono {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 28px;
}

/* -------- Focus states -------- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: var(--radius-s);
}

/* -------- Eyebrow / chip label (style "étiquette de composant") -------- */
.chip-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-ink);
  background: var(--accent-soft);
  border: 1px solid #C9DAFC;
  padding: 5px 12px 5px 10px;
  border-radius: 999px;
}
.chip-tag .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--circuit);
  box-shadow: 0 0 0 3px var(--circuit-soft);
}

/* =========================================================
   HEADER
   ========================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(246, 248, 250, 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.logo {
  display: flex;
  align-items: baseline;
  gap: 2px;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.01em;
}
.logo .core { color: var(--accent); }
.logo .tick {
  color: var(--circuit);
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  margin-left: 6px;
}

.main-nav { display: flex; align-items: center; gap: 34px; }
.main-nav a:not(.btn) {
  font-size: 14.5px;
  color: var(--ink-soft);
  font-weight: 500;
  position: relative;
  padding: 4px 0;
}
.main-nav a:not(.btn):hover { color: var(--ink); }
.main-nav a:not(.btn)::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -3px;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .2s ease;
}
.main-nav a:not(.btn):hover::after { transform: scaleX(1); }

.nav-links { display: flex; align-items: center; gap: 34px; }
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  width: 42px; height: 42px;
  align-items: center; justify-content: center;
}

/* -------- Buttons -------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 14.5px;
  padding: 12px 22px;
  border-radius: var(--radius-s);
  border: 1px solid transparent;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 1px 2px rgba(47,111,237,.25), 0 6px 16px rgba(47,111,237,.28);
}
.btn-primary:hover { background: var(--accent-ink); transform: translateY(-1px); }
.btn-secondary {
  background: var(--bg-card);
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent-ink); transform: translateY(-1px); }
.btn-ghost {
  background: transparent;
  color: var(--ink-soft);
  border-color: var(--line);
}
.btn:disabled {
  opacity: .7;
  cursor: not-allowed;
  transform: none !important;
}
.btn-block { width: 100%; justify-content: center; }
.btn svg { flex-shrink: 0; }

/* =========================================================
   HERO
   ========================================================= */
.hero {
  position: relative;
  padding: 84px 0 96px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  position: relative;
  z-index: 2;
}
.hero h1 {
  font-size: clamp(2.4rem, 4vw, 3.6rem);
  margin: 18px 0 20px;
}
.hero h1 .accent { color: var(--accent); }
.hero h1 .underline-circuit {
  position: relative;
  white-space: nowrap;
}
.hero-lede {
  font-size: 18px;
  color: var(--ink-soft);
  max-width: 46ch;
  margin-bottom: 32px;
}
.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 40px; }

.hero-stats {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  padding-top: 28px;
  border-top: 1px dashed var(--line-strong);
}
.hero-stat .num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--ink);
  display: block;
}
.hero-stat .label {
  font-size: 12.5px;
  color: var(--ink-faint);
  font-family: 'JetBrains Mono', monospace;
  text-transform: uppercase;
  letter-spacing: .04em;
}

/* -------- Hero visual: schéma PCB -------- */
.hero-visual {
  position: relative;
  aspect-ratio: 1 / 1;
  max-width: 620px;
  margin: 0 auto;
}
.hero-visual svg { width: 100%; height: 100%; }
.pcb-pulse {
  animation: pulseDot 2.4s ease-in-out infinite;
}
@keyframes pulseDot {
  0%, 100% { opacity: .35; }
  50% { opacity: 1; }
}
.pcb-line {
  stroke-dasharray: 6 6;
  animation: dash 18s linear infinite;
}
@keyframes dash { to { stroke-dashoffset: -240; } }

@media (prefers-reduced-motion: reduce) {
  .pcb-pulse, .pcb-line { animation: none !important; }
}

/* Section-connecting PCB trace divider */
.trace-divider {
  width: 100%;
  height: 40px;
  display: block;
}

/* =========================================================
   SECTION SHELLS
   ========================================================= */
section { padding: 88px 0; }
.section-alt { background: var(--bg-alt); }
.section-head {
  max-width: 640px;
  margin-bottom: 52px;
}
.section-head h2 {
  font-size: clamp(1.8rem, 2.6vw, 2.5rem);
  margin: 14px 0 12px;
}
.section-head p { color: var(--ink-soft); font-size: 16.5px; }

/* =========================================================
   SERVICES
   ========================================================= */
.scope-banner {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--circuit);
  border-radius: var(--radius-m);
  padding: 18px 22px;
  margin-bottom: 52px;
}
.scope-banner svg { flex-shrink: 0; margin-top: 2px; color: var(--circuit); }
.scope-banner p { color: var(--ink-soft); font-size: 14.5px; }
.scope-banner strong { color: var(--ink); }

.services-rail {
  position: relative;
}
.service-block {
  position: relative;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 40px;
  padding: 44px 0;
  border-top: 1px solid var(--line);
}
.service-block:last-child { border-bottom: 1px solid var(--line); }

.service-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: var(--ink-faint);
  letter-spacing: .04em;
}
.service-tag .id {
  display: inline-block;
  margin-top: 10px;
  font-size: 34px;
  font-weight: 700;
  font-family: 'Space Grotesk', sans-serif;
  color: var(--line-strong);
  letter-spacing: -0.02em;
}

.service-block h3 {
  font-size: 22px;
  margin-bottom: 10px;
}

.offer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 20px;
}
.offer-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  padding: 20px 22px;
  transition: box-shadow .18s ease, transform .18s ease, border-color .18s ease;
}
.offer-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
  border-color: #C9DAFC;
}
.offer-card-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 10px;
}
.offer-card-head .letter {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--ink-faint);
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 2px 7px;
}
.price {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 20px;
  color: var(--accent-ink);
  white-space: nowrap;
}
.price .cur { font-size: 14px; font-weight: 500; }
.price .per { font-family: 'Inter'; font-size: 12px; font-weight: 500; color: var(--ink-faint); }
.offer-card p {
  font-size: 14.5px;
  color: var(--ink-soft);
}
.offer-note {
  margin-top: 12px;
  font-size: 13px;
  color: var(--ink-faint);
  display: flex;
  gap: 6px;
}

/* =========================================================
   PROCESS (comment ça se passe)
   ========================================================= */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}
.step {
  position: relative;
  padding: 0 22px 0 0;
}
.step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 22px;
  right: -2px;
  width: calc(100% - 44px);
  height: 1px;
  background-image: linear-gradient(to right, var(--line-strong) 0 6px, transparent 6px 12px);
  background-size: 12px 1px;
}
.step .n {
  font-family: 'JetBrains Mono', monospace;
  color: var(--accent);
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  border: 1px solid var(--accent);
  border-radius: 50%;
  background: var(--bg-card);
  margin-bottom: 18px;
}
.step h4 { font-size: 16px; margin-bottom: 8px; }
.step p { font-size: 14px; color: var(--ink-soft); }

/* =========================================================
   GALLERY
   ========================================================= */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  
  object-fit: cover;
}
.gallery-item {
  aspect-ratio: 4 / 4;
  border-radius: var(--radius-m);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  border-radius: 10px;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: var(--radius-m);
}

.gallery-item.filled { border-style: solid; }
.gallery-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--ink-faint);
  text-align: center;
  padding: 20px;
  
  object-fit: cover;
}
.gallery-placeholder svg { color: var(--line-strong); }
.gallery-placeholder span {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  letter-spacing: .03em;
}
.gallery-caption {
  position: absolute;
  
  left: 0; right: 0; bottom: 0;
  padding: 10px 14px;
  font-size: 12.5px;
  font-family: 'JetBrains Mono', monospace;
  background: linear-gradient(to top, rgba(16,21,31,.75), transparent);
  color: #fff;
  opacity: 0;
  transition: opacity .18s ease;
}
.gallery-item.filled:hover .gallery-caption { opacity: 1; }

/* =========================================================
   TESTIMONIAL / TRUST STRIP (placeholder friendly)
   ========================================================= */
.trust-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.trust-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  padding: 24px;
}
.trust-card svg { color: var(--circuit); margin-bottom: 12px; }
.trust-card h4 { font-size: 16px; margin-bottom: 8px; }
.trust-card p { font-size: 14px; color: var(--ink-soft); }

/* =========================================================
   CONTACT
   ========================================================= */
.contact-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 48px;
  align-items: start;
}
.contact-info-card {
  background: var(--ink);
  color: #fff;
  border-radius: var(--radius-l);
  padding: 36px 32px;
  position: relative;
  overflow: hidden;
}
.contact-info-card h3 {
  font-size: 22px;
  margin-bottom: 14px;
  color: #fff;
}
.contact-info-card > p {
  color: #AEB8CC;
  font-size: 14.5px;
  margin-bottom: 28px;
}
.contact-line {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 14px 0;
  border-top: 1px solid rgba(255,255,255,.1);
}
.contact-line:first-of-type { border-top: none; }
.contact-line svg { color: var(--circuit); flex-shrink: 0; margin-top: 2px; }
.contact-line a, .contact-line span.val { color: #fff; font-weight: 500; font-size: 15px; }
.contact-line .label { display: block; font-size: 12px; color: #8792A3; font-family: 'JetBrains Mono', monospace; margin-bottom: 2px; }

.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  padding: 36px;
  box-shadow: var(--shadow-card);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { margin-bottom: 20px; }
.field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--ink);
}
.field .opt { color: var(--ink-faint); font-weight: 400; }
.field input,
.field select,
.field textarea {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-s);
  padding: 12px 14px;
  font-family: 'Inter', sans-serif;
  font-size: 14.5px;
  background: var(--bg);
  color: var(--ink);
  transition: border-color .15s ease, box-shadow .15s ease;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
  outline: none;
}
.field textarea { resize: vertical; min-height: 120px; }
.consent-row {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-bottom: 24px;
}
.consent-row input { margin-top: 3px; }
.consent-row label { font-size: 13px; color: var(--ink-soft); }
.consent-row a { color: var(--accent-ink); text-decoration: underline; }
.form-status {
  margin-top: 16px;
  font-size: 14px;
  padding: 12px 14px;
  border-radius: var(--radius-s);
  display: none;
}
.form-status.show { display: block; }
.form-status.success { background: var(--circuit-soft); color: #0A6B52; }
.form-status.error { background: #FDECE7; color: #9C3A1D; }

/* =========================================================
   FINAL CTA BAND
   ========================================================= */
.cta-band {
  background: var(--ink);
  color: #fff;
  border-radius: var(--radius-l);
  padding: 56px 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 32px;
  position: relative;
  overflow: hidden;
}
.cta-band h2 { color: #fff; font-size: clamp(1.6rem, 2.6vw, 2.1rem); max-width: 20ch; }
.cta-band p { color: #AEB8CC; margin-top: 10px; font-size: 15px; }
.cta-band-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* =========================================================
   FOOTER
   ========================================================= */
footer {
  border-top: 1px solid var(--line);
  padding: 52px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand p {
  color: var(--ink-soft);
  font-size: 14px;
  margin-top: 14px;
  max-width: 34ch;
}
footer h5 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 16px;
}
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: 14.5px; color: var(--ink-soft); }
.footer-links a:hover { color: var(--accent-ink); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--ink-faint);
}
.footer-bottom a { color: var(--ink-faint); }
.footer-bottom a:hover { color: var(--accent-ink); }

/* =========================================================
   LEGAL PAGES
   ========================================================= */
.legal-hero {
  padding: 64px 0 40px;
  border-bottom: 1px solid var(--line);
}
.legal-hero h1 { font-size: clamp(1.9rem, 3vw, 2.6rem); }
.legal-hero p { color: var(--ink-soft); margin-top: 12px; }
.legal-body {
  padding: 56px 0 96px;
  max-width: 780px;
  margin: 0 auto;
}
.legal-body h2 {
  font-size: 20px;
  margin: 40px 0 14px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}
.legal-body h2:first-child { border-top: none; padding-top: 0; margin-top: 0; }
.legal-body p, .legal-body li {
  color: var(--ink-soft);
  font-size: 15px;
  margin-bottom: 14px;
}
.legal-body ul { padding-left: 20px; }
.legal-body li { list-style: disc; margin-bottom: 8px; }
.legal-body strong { color: var(--ink); }
.legal-body .placeholder {
  background: var(--accent-soft);
  color: var(--accent-ink);
  padding: 1px 6px;
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
}
.legal-toc {
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  padding: 20px 24px;
  margin-bottom: 8px;
}
.legal-toc h5 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--ink-faint);
  margin-bottom: 12px;
}
.legal-toc a {
  display: block;
  font-size: 14px;
  color: var(--ink-soft);
  padding: 5px 0;
}
.legal-toc a:hover { color: var(--accent-ink); }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { max-width: 420px; margin-top: 20px; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; row-gap: 32px; }
  .step:nth-child(2)::after { display: none; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-strip { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .main-nav .nav-links {
    position: fixed;
    top: 76px; left: 0; right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: stretch;
    padding: 20px 28px 28px;
    gap: 18px;
    display: none;
  }
  .main-nav .nav-links.open { display: flex; }
  .nav-toggle { display: inline-flex; }
  .service-block { grid-template-columns: 1fr; gap: 16px; }
  .service-tag .id { font-size: 26px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .cta-band { flex-direction: column; align-items: flex-start; padding: 40px 28px; }
  .gallery-grid { grid-template-columns: 1fr; }
  .offer-grid { grid-template-columns: 1fr; }
}