/* ==========================================================================
   WP Énergies Services — Design tokens
   Palette: logo navy (ink) / steel blue / azure accent
   Type: Space Grotesk (display) · Inter (body) · IBM Plex Mono (data)
   ========================================================================== */

:root {
  --ink: #0a2855;
  --ink-2: #071c3e;
  --steel: #2c4a6e;
  --azure: #2f6fb0;
  --azure-deep: #1f5490;
  --azure-soft: #e8f0f7;
  --foliage: #7c9b78;
  --foliage-dark: #5f7d5c;
  --bg: #f4f6f9;
  --surface: #ffffff;
  --line: #dce2ea;
  --line-strong: #b9c4d1;
  --text: #1b222e;
  --muted: #5b6472;
  --muted-2: #8792a0;

  --font-display: "Space Grotesk", "Arial Narrow", sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: "IBM Plex Mono", "Courier New", monospace;

  --max-w: 1180px;
  --radius: 3px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

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

a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--ink);
  margin: 0;
  font-weight: 600;
  letter-spacing: -0.01em;
}

p { margin: 0; }

.mono {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
}

/* ---------- focus ---------- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--azure);
  outline-offset: 3px;
}

/* ---------- header / nav ---------- */
.site-header {
  background: var(--surface);
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--line);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 84px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.logo img { height: 40px; width: auto; display: block; }

.logo-word { display: flex; flex-direction: column; line-height: 1.18; }
.logo-sub {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 500;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  display: inline-block;
  padding: 10px 14px;
  font-size: 0.9rem;
  color: var(--steel);
  font-weight: 500;
  border-radius: var(--radius);
  transition: color 0.15s ease, background 0.15s ease;
}

.nav-links a:hover { color: var(--ink); background: var(--azure-soft); }

.nav-links a.active {
  color: var(--ink);
  background: var(--azure-soft);
  font-weight: 600;
}

.nav-cta {
  background: var(--azure) !important;
  color: #fff !important;
  font-weight: 600;
  margin-left: 8px;
}
.nav-cta:hover { background: var(--azure-deep) !important; color: #fff !important; }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  width: 42px;
  height: 38px;
  color: var(--ink);
  cursor: pointer;
}

@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute;
    top: 84px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--surface);
    padding: 8px 24px 20px;
    border-bottom: 1px solid var(--line);
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 8px; }
  .nav-cta { margin-left: 0; text-align: center; margin-top: 6px; }
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.12s ease, background 0.15s ease, border-color 0.15s ease;
}

.btn-primary { background: var(--azure); color: #fff; }
.btn-primary:hover { background: var(--azure-deep); }

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn-ghost:hover { border-color: var(--ink); }

.btn-on-dark {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.35);
}
.btn-on-dark:hover { border-color: #fff; }

/* ---------- eyebrow / labels ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--azure);
  display: flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: "";
  width: 20px;
  height: 1px;
  background: var(--azure);
  display: inline-block;
}

/* ---------- hero ---------- */
.hero {
  background: var(--ink);
  background-image:
    radial-gradient(circle at 85% 15%, rgba(62,124,177,0.18), transparent 55%);
  color: #fff;
  padding: 128px 0 100px;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
}

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
}

.hero h1 {
  color: #fff;
  font-size: clamp(2.4rem, 4.6vw, 3.8rem);
  line-height: 1.05;
  margin: 0 0 26px;
  max-width: 15ch;
}

.hero h1 em {
  font-style: normal;
  color: var(--azure);
}

.hero-lead {
  color: rgba(255,255,255,0.75);
  font-size: 1.1rem;
  max-width: 46ch;
  margin-bottom: 34px;
}

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-meta {
  margin-top: 44px;
  display: flex;
  gap: 34px;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: rgba(255,255,255,0.5);
}
.hero-meta strong { color: #fff; font-size: 1rem; display: block; font-family: var(--font-display); }

/* circuit signature */
.circuit {
  width: 100%;
  height: auto;
}
.circuit .line { stroke: rgba(255,255,255,0.28); stroke-width: 1.4; fill: none; }
.circuit .line-live { stroke: var(--azure); stroke-width: 2; fill: none; stroke-dasharray: 6 7; animation: dash 26s linear infinite; }
.circuit .node { fill: var(--ink); stroke: rgba(255,255,255,0.4); stroke-width: 1.4; }
.circuit .node-live { fill: var(--azure); stroke: rgba(255,255,255,0.5); }
.circuit text { font-family: var(--font-mono); font-size: 9px; fill: rgba(255,255,255,0.45); letter-spacing: 0.05em; }

@keyframes dash { to { stroke-dashoffset: -260; } }

/* ---------- sections ---------- */
section { padding: 84px 0; }
.section-tight { padding: 64px 0; }

.section-head {
  max-width: 640px;
  margin-bottom: 48px;
}
.section-head h2 {
  font-size: clamp(1.6rem, 2.6vw, 2.1rem);
  margin-top: 14px;
}
.section-head p {
  color: var(--muted);
  margin-top: 14px;
  font-size: 1.02rem;
}

.bg-surface { background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.bg-ink { background: var(--ink); color: #fff; }
.bg-ink h2, .bg-ink h3 { color: #fff; }

/* ---------- problem/solution grid ---------- */
.ps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
@media (max-width: 860px) { .ps-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .ps-grid { grid-template-columns: 1fr; } }

.ps-card {
  background: var(--surface);
  padding: 30px 26px;
}

.ps-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--azure);
  margin-bottom: 16px;
  display: block;
}

.ps-card h3 {
  font-size: 1.02rem;
  margin-bottom: 10px;
}

.ps-problem {
  font-size: 0.88rem;
  color: var(--muted-2);
  margin-bottom: 8px;
}

.ps-solution {
  font-size: 0.92rem;
  color: var(--text);
}
.ps-solution::before { content: "→ "; color: var(--azure); font-weight: 700; }

/* ---------- cards / lists ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px;
}

.stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
@media (max-width: 760px) { .stat-row { grid-template-columns: repeat(2, 1fr); } }

.stat-cell {
  padding: 28px 24px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}
.stat-cell .num {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--ink);
  font-weight: 700;
}
.stat-cell .label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 6px;
}

/* ---------- timeline (Décret Tertiaire) ---------- */
.timeline {
  position: relative;
  padding-left: 28px;
  border-left: 2px solid var(--line);
}
.t-item { position: relative; padding-bottom: 34px; }
.t-item:last-child { padding-bottom: 0; }
.t-item::before {
  content: "";
  position: absolute;
  left: -34px; top: 3px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--surface);
  border: 2px solid var(--azure);
}
.t-item.t-alert::before { background: var(--azure); border-color: var(--azure); }
.t-year { font-family: var(--font-mono); font-size: 0.78rem; color: var(--azure); }
.t-item.t-alert .t-year { color: var(--azure); }
.t-item h4 { font-size: 1rem; margin: 4px 0 6px; }
.t-item p { color: var(--muted); font-size: 0.92rem; }

/* ---------- footer ---------- */
.site-footer {
  background: var(--ink-2);
  color: rgba(255,255,255,0.65);
  padding: 56px 0 28px;
  font-size: 0.9rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr; gap: 28px; } }
.site-footer h5 {
  font-family: var(--font-mono);
  color: rgba(255,255,255,0.9);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 14px;
}
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: 9px; }
.site-footer a:hover { color: #fff; }
.footer-logo { height: 34px; width: auto; margin-bottom: 16px; }
.footer-name {
  font-family: var(--font-display);
  font-weight: 600;
  color: #fff;
  font-size: 1rem;
  margin-bottom: 10px;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 22px;
  font-size: 0.78rem;
  color: rgba(255,255,255,0.4);
  font-family: var(--font-mono);
}

/* ---------- page header (interior pages) ---------- */
.page-header {
  background: var(--ink);
  color: #fff;
  padding: 62px 0 50px;
  position: relative;
  overflow: hidden;
}
.page-header h1 { color: #fff; font-size: clamp(1.9rem, 3.4vw, 2.5rem); margin-top: 14px; }
.page-header p { color: rgba(255,255,255,0.7); max-width: 56ch; margin-top: 14px; }
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: rgba(255,255,255,0.45);
}
.breadcrumb a:hover { color: #fff; }

.page-header-tall { padding: 76px 0 0; }
.page-header-tall .wrap { position: relative; z-index: 2; padding-bottom: 46px; }
.skyline {
  position: relative;
  z-index: 1;
  width: 100%;
  height: auto;
  display: block;
  margin-top: 18px;
}
.skyline .bd { fill: rgba(255,255,255,0.05); stroke: rgba(255,255,255,0.16); stroke-width: 1; }
.skyline .bd-front { fill: rgba(10,40,85,0.55); stroke: rgba(255,255,255,0.22); stroke-width: 1; }
.skyline .win { fill: rgba(255,255,255,0.09); }
.skyline .win-lit { fill: var(--azure); opacity: 0.85; }
.skyline .ground { stroke: rgba(255,255,255,0.22); stroke-width: 1; }

/* ---------- services page ---------- */
.service-block {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 40px;
  padding: 40px 0;
  border-top: 1px solid var(--line);
}
.service-block:last-child { border-bottom: 1px solid var(--line); }
@media (max-width: 760px) { .service-block { grid-template-columns: 1fr; gap: 14px; } }
.service-tag {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--azure);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  display: block;
  margin-top: 14px;
}
.service-icon { width: 46px; height: 46px; }
.service-icon .ic-line { stroke: var(--ink); stroke-width: 1.6; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.service-icon .ic-accent { stroke: var(--azure); stroke-width: 1.6; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.service-icon .ic-dot { fill: var(--azure); }
.service-icon .ic-fill { fill: var(--azure); stroke: none; }
.service-block h3 { font-size: 1.25rem; margin-bottom: 12px; }
.service-block p { color: var(--muted); }
.service-block ul { margin: 16px 0 0; padding-left: 18px; color: var(--muted); }
.service-block li { margin-bottom: 6px; }

/* ---------- about page ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: start;
}
@media (max-width: 860px) { .about-grid { grid-template-columns: 1fr; } }

.timeline-career .t-item::before { border-color: var(--azure); }
.career-year { font-family: var(--font-mono); font-size: 0.78rem; color: var(--azure); }

/* ---------- contact page ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
}
@media (max-width: 860px) { .contact-grid { grid-template-columns: 1fr; } }

.field { margin-bottom: 20px; }
.field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-bottom: 8px;
}
.field input, .field textarea, .field select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.95rem;
  background: var(--surface);
  color: var(--text);
}
.field textarea { resize: vertical; min-height: 120px; }

.checkbox-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
@media (max-width: 480px) { .checkbox-group { grid-template-columns: 1fr; } }
.checkbox-item {
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 11px 13px;
  font-size: 0.9rem;
  cursor: pointer;
  background: var(--surface);
}
.checkbox-item input { width: 16px; height: 16px; accent-color: var(--azure); flex-shrink: 0; }

.devis-aside .info-item { padding: 16px 0; }
.devis-steps { margin-top: 26px; }

.info-item { display: flex; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.info-item:first-child { padding-top: 0; }
.info-item .ii-label { font-family: var(--font-mono); font-size: 0.72rem; text-transform: uppercase; color: var(--muted); width: 110px; flex-shrink: 0; padding-top: 2px; }
.info-item .ii-value { font-size: 0.98rem; }

.form-msg { font-size: 0.88rem; margin-top: 14px; display: none; }
.form-msg.show { display: block; }
.form-msg.ok { color: #2c6e49; }
.form-msg.error { color: #b3261e; }

/* ---------- careers page ---------- */
.value-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 860px) { .value-grid { grid-template-columns: 1fr; } }

.value-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
  padding: 28px;
}
.value-card:hover { transform: translateY(-3px); box-shadow: 0 16px 30px -18px rgba(10,40,85,0.3); }
.value-card .v-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--azure);
  display: block;
  margin-bottom: 14px;
}
.value-card h3 { font-size: 1.02rem; margin-bottom: 10px; }
.value-card p { color: var(--muted); font-size: 0.92rem; }

.job-list { border-top: 1px solid var(--line); }
.job-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 24px 4px;
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
  transition: background 0.15s ease, padding-left 0.15s ease;
}
.job-row:hover { background: var(--azure-soft); padding-left: 14px; }
.job-row .job-title { font-family: var(--font-display); font-weight: 600; font-size: 1.05rem; color: var(--ink); }
.job-row .job-meta { font-family: var(--font-mono); font-size: 0.78rem; color: var(--muted); margin-top: 6px; }
.job-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--azure);
  background: var(--azure-soft);
  padding: 4px 10px;
  border-radius: 20px;
  display: inline-block;
}

.spontaneous-card {
  background: var(--ink);
  color: #fff;
  border-radius: var(--radius);
  padding: 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.spontaneous-card h3 { color: #fff; font-size: 1.2rem; }
.spontaneous-card p { color: rgba(255,255,255,0.7); margin-top: 8px; max-width: 46ch; }

/* ---------- about description block ---------- */
.about-lede {
  font-size: 1.08rem;
  color: var(--text);
  max-width: 68ch;
}
.about-lede + p { margin-top: 16px; }

/* ---------- building illustrations (services page) ---------- */
.building-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
@media (max-width: 940px) { .building-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .building-grid { grid-template-columns: 1fr; } }

.building-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
.building-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 34px -18px rgba(10,40,85,0.35);
  border-color: var(--line-strong);
}
.building-visual {
  background: linear-gradient(180deg, var(--azure-soft) 0%, #ffffff 78%);
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 18px 18px 0;
}
.building-visual svg { width: 100%; height: auto; }
.bldg .b-line { stroke: var(--ink); stroke-width: 1.5; fill: none; stroke-linejoin: round; }
.bldg .b-fill { fill: var(--surface); stroke: var(--ink); stroke-width: 1.5; }
.bldg .b-win { fill: var(--azure-soft); stroke: var(--ink); stroke-width: 1; }
.bldg .b-win-lit { fill: var(--azure); stroke: var(--ink); stroke-width: 1; }
.bldg .b-accent { stroke: var(--azure); stroke-width: 1.8; fill: none; stroke-linecap: round; }
.bldg .b-ground { stroke: var(--ink); stroke-width: 1.5; }
.bldg .b-foliage { fill: var(--foliage); }
.bldg .b-foliage-dark { fill: var(--foliage-dark); }
.bldg .b-trunk { stroke: var(--foliage-dark); stroke-width: 1.6; stroke-linecap: round; }
.building-caption { padding: 18px 20px 22px; }
.building-caption h3 { font-size: 1rem; margin-bottom: 6px; }
.building-caption p { font-size: 0.86rem; color: var(--muted); }

/* ---------- signature motif: technical drawing corner marks ---------- */
.ps-card, .value-card, .building-card, .stat-cell {
  position: relative;
}
.ps-card::before, .value-card::before, .building-card::before, .stat-cell::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 15px; height: 15px;
  border-top: 2px solid var(--azure);
  border-left: 2px solid var(--azure);
  opacity: 0.55;
  pointer-events: none;
}

/* ---------- scroll reveal (enabled only once JS confirms it can animate) ---------- */
.js .section-head,
.js .ps-grid,
.js .value-grid,
.js .building-grid,
.js .stat-row,
.js .job-list,
.js .about-grid,
.js .contact-grid,
.js .devis-aside {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.js .section-head.is-visible,
.js .ps-grid.is-visible,
.js .value-grid.is-visible,
.js .building-grid.is-visible,
.js .stat-row.is-visible,
.js .job-list.is-visible,
.js .about-grid.is-visible,
.js .contact-grid.is-visible,
.js .devis-aside.is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .js .section-head, .js .ps-grid, .js .value-grid, .js .building-grid,
  .js .stat-row, .js .job-list, .js .about-grid, .js .contact-grid, .js .devis-aside {
    opacity: 1; transform: none; transition: none;
  }
}

/* ---------- utility ---------- */
.center { text-align: center; }
.mt-lg { margin-top: 60px; }