/* =========================================================
   KEOPS CONFORT — Site vitrine
   Palette : navy #0d2042 · red #e63946 · green #2a9d54 · blue #1d6fb8
   ========================================================= */

:root {
  --navy: #0d2042;
  --navy-2: #1f3a6e;
  --navy-soft: #2c4a85;
  --red: #e63946;
  --green: #2a9d54;
  --blue: #1d6fb8;
  --amber: #f4a51c;

  --bg: #ffffff;
  --bg-soft: #f6f8fb;
  --bg-dark: #0a1830;
  --line: #e5e9f0;

  --text: #0d2042;
  --text-soft: #4a5568;
  --muted: #6b7891;
  --white: #ffffff;

  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;

  --shadow-sm: 0 2px 6px rgba(13, 32, 66, 0.06);
  --shadow: 0 12px 32px rgba(13, 32, 66, 0.08);
  --shadow-lg: 0 20px 48px rgba(13, 32, 66, 0.14);

  --container: 1180px;
  --transition: 200ms cubic-bezier(.4, 0, .2, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

h1, h2, h3, h4 {
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  line-height: 1.15;
  margin: 0 0 .5em;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.7rem, 3.5vw, 2.6rem); }
h3 { font-size: 1.3rem; font-weight: 700; }
h4 { font-size: 1.1rem; font-weight: 700; }

p { margin: 0 0 1em; color: var(--text-soft); }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  display: inline-block;
  font-size: .82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--blue);
  margin-bottom: 14px;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(29, 111, 184, .09);
}
.eyebrow-light {
  color: #8eb4dc;
  background: rgba(255, 255, 255, .08);
}

.muted { color: var(--muted); }
.muted-light { color: rgba(255, 255, 255, .65); }
.light { color: var(--white); }
.grad {
  background: linear-gradient(120deg, var(--blue) 0%, var(--green) 60%, var(--red) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* =========== NAVBAR =========== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .82);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(255, 255, 255, .96);
  border-bottom-color: var(--line);
  box-shadow: var(--shadow-sm);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-logo {
  width: 40px;
  height: 32px;
  flex: none;
}
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.brand-text strong {
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: .04em;
  color: var(--navy);
}
.brand-text em {
  font-size: .68rem;
  font-style: normal;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: .02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-links a {
  padding: 9px 14px;
  font-size: .92rem;
  font-weight: 500;
  color: var(--text-soft);
  border-radius: 8px;
  transition: var(--transition);
}
.nav-links a:hover { color: var(--navy); background: var(--bg-soft); }

.nav-cta {
  background: var(--navy) !important;
  color: var(--white) !important;
  padding: 10px 18px !important;
  font-weight: 600 !important;
}
.nav-cta:hover { background: var(--navy-2) !important; }

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  width: 40px;
  height: 40px;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--navy);
  margin: 5px 0;
  border-radius: 2px;
  transition: var(--transition);
}
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =========== HERO =========== */
.hero {
  position: relative;
  padding: 160px 0 90px;
  background:
    radial-gradient(ellipse at top right, rgba(29, 111, 184, .12), transparent 55%),
    radial-gradient(ellipse at bottom left, rgba(42, 157, 84, .08), transparent 50%),
    linear-gradient(180deg, #ffffff 0%, var(--bg-soft) 100%);
  overflow: hidden;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-content h1 { color: var(--navy); margin-bottom: 24px; }
.hero-content .lead {
  font-size: 1.12rem;
  color: var(--text-soft);
  max-width: 560px;
  margin-bottom: 32px;
}
.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 26px;
  font-weight: 600;
  font-size: .98rem;
  border-radius: 10px;
  cursor: pointer;
  transition: var(--transition);
  border: 0;
}
.btn-primary {
  background: var(--navy);
  color: var(--white);
  box-shadow: 0 8px 22px rgba(13, 32, 66, .22);
}
.btn-primary:hover {
  background: var(--navy-2);
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(13, 32, 66, .28);
}
.btn-ghost {
  background: transparent;
  color: var(--navy);
  border: 1.5px solid var(--line);
}
.btn-ghost:hover {
  border-color: var(--navy);
  background: var(--bg-soft);
}
.btn-block { width: 100%; margin-top: 8px; }

/* WhatsApp button */
.btn-wa {
  background: #25d366;
  color: var(--white);
  box-shadow: 0 8px 22px rgba(37, 211, 102, .28);
  margin-top: 12px;
}
.btn-wa:hover {
  background: #1ebe5d;
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(37, 211, 102, .35);
}
.btn-wa-icon {
  width: 18px;
  height: 18px;
  margin-right: 8px;
  fill: currentColor;
}

/* WhatsApp icon variant in contact rows */
.ic-wa {
  background: rgba(37, 211, 102, .12) !important;
  color: #25d366 !important;
}

/* Hero visual */
.hero-visual {
  position: relative;
}
.hero-card {
  position: relative;
  display: grid;
  gap: 22px;
  background: var(--white);
  padding: 36px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(13, 32, 66, .04);
  z-index: 2;
}
.hero-stat {
  display: flex;
  align-items: baseline;
  gap: 18px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}
.hero-stat:last-child { border: 0; }
.stat-num {
  font-size: 2.6rem;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.03em;
  line-height: 1;
}
.stat-num sup { font-size: .55em; color: var(--blue); margin-left: 2px; }
.stat-num.green { color: var(--green); }
.stat-num.blue  { color: var(--blue); }
.stat-num.red   { color: var(--red); }
.stat-label {
  font-size: .92rem;
  color: var(--text-soft);
  font-weight: 500;
  flex: 1;
}
.hero-glow {
  position: absolute;
  inset: -40px;
  background:
    radial-gradient(circle at 70% 20%, rgba(230, 57, 70, .15), transparent 40%),
    radial-gradient(circle at 20% 80%, rgba(29, 111, 184, .15), transparent 45%);
  filter: blur(40px);
  z-index: 1;
}

/* =========== SECTIONS =========== */
.section { padding: 100px 0; }
.section-light { background: var(--bg-soft); }
.section-dark {
  background: var(--bg-dark);
  color: var(--white);
}
.section-cta {
  background: linear-gradient(135deg, var(--navy) 0%, var(--bg-dark) 100%);
  color: var(--white);
  position: relative;
}
.section-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at top right, rgba(230, 57, 70, .12), transparent 50%),
    radial-gradient(ellipse at bottom left, rgba(29, 111, 184, .15), transparent 50%);
  pointer-events: none;
}
.section-cta .container { position: relative; z-index: 1; }

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 60px;
}
.section-head p { font-size: 1.05rem; }

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

/* =========== STATS GRID =========== */
.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.stat-card {
  background: var(--white);
  padding: 28px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  transition: var(--transition);
}
.stat-card:hover {
  border-color: transparent;
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.stat-card .stat-num { font-size: 2.4rem; }
.stat-card p { margin: 6px 0 0; font-size: .92rem; color: var(--text-soft); }

/* =========== PILLARS =========== */
.pillar-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.pillar {
  background: var(--white);
  padding: 36px 28px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  text-align: left;
  transition: var(--transition);
}
.pillar:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: transparent;
}
.pillar-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  margin-bottom: 22px;
}
.pillar-icon svg { width: 30px; height: 30px; }
.pillar-icon-red    { background: rgba(230, 57, 70, .12);  color: var(--red); }
.pillar-icon-amber  { background: rgba(244, 165, 28, .14); color: var(--amber); }
.pillar-icon-green  { background: rgba(42, 157, 84, .12);  color: var(--green); }
.pillar-icon-blue   { background: rgba(29, 111, 184, .12); color: var(--blue); }
.pillar h3 { color: var(--navy); margin-bottom: 8px; }
.pillar p { font-size: .94rem; margin: 0; }

/* =========== BUREAU D'ÉTUDES =========== */
.bureau-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.bureau-card {
  position: relative;
  padding: 36px 28px;
  background: rgba(255, 255, 255, .04);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: var(--radius);
  transition: var(--transition);
}
.bureau-card:hover {
  background: rgba(255, 255, 255, .07);
  border-color: rgba(255, 255, 255, .18);
  transform: translateY(-3px);
}
.bureau-num {
  position: absolute;
  top: 24px;
  right: 24px;
  font-size: 1.2rem;
  font-weight: 800;
  color: rgba(255, 255, 255, .25);
}
.bureau-card h3 {
  color: var(--white);
  margin-bottom: 10px;
  padding-right: 40px;
}
.bureau-card p {
  color: rgba(255, 255, 255, .68);
  font-size: .94rem;
  margin: 0;
}

/* =========== LOTS TECHNIQUES =========== */
.lots-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.lot-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  transition: var(--transition);
}
.lot-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: transparent;
}
.lot-img {
  height: 200px;
  background-size: cover;
  background-position: center;
  background-color: var(--navy);
  position: relative;
}
.lot-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(13, 32, 66, .55) 100%);
}
/* Placeholders gradient illustrations - to be replaced with real photos */
.lot-img-1 {
  background: linear-gradient(135deg, #1d6fb8 0%, #0d2042 100%);
}
.lot-img-1::before {
  content: 'CVC';
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: 4rem;
  color: rgba(255, 255, 255, .12);
  letter-spacing: .15em;
}
.lot-img-2 {
  background: linear-gradient(135deg, #2a9d54 0%, #0d2042 100%);
}
.lot-img-2::before {
  content: 'PLOMBERIE';
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: 2.4rem;
  color: rgba(255, 255, 255, .12);
  letter-spacing: .12em;
}
.lot-img-3 {
  background: linear-gradient(135deg, #f4a51c 0%, #e63946 100%);
}
.lot-img-3::before {
  content: 'ENR';
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: 4rem;
  color: rgba(255, 255, 255, .15);
  letter-spacing: .15em;
}

.lot-body { padding: 28px; }
.lot-body h3 { color: var(--navy); margin-bottom: 14px; }
.lot-body ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.lot-body li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 10px;
  color: var(--text-soft);
  font-size: .96rem;
}
.lot-body li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: rgba(29, 111, 184, .14);
}
.lot-body li::after {
  content: '';
  position: absolute;
  left: 4px;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--blue);
}

/* =========== RÉALISATIONS =========== */
.cat-title {
  font-size: 1.4rem;
  color: var(--navy);
  margin: 30px 0 24px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--line);
  position: relative;
}
.cat-title::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 64px;
  height: 2px;
  background: var(--navy);
}

.proj-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}
.proj-grid-2 { grid-template-columns: repeat(2, 1fr); }

.proj-card {
  background: var(--white);
  padding: 32px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.proj-card:hover {
  transform: translateY(-3px);
  border-color: transparent;
  box-shadow: var(--shadow);
}
.proj-card-large { padding: 40px; }
.proj-tag {
  display: inline-block;
  align-self: flex-start;
  font-size: .76rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  padding: 6px 12px;
  background: rgba(230, 57, 70, .1);
  color: var(--red);
  border-radius: 999px;
  margin-bottom: 16px;
}
.proj-tag.tag-blue {
  background: rgba(29, 111, 184, .1);
  color: var(--blue);
}
.proj-card h4 {
  color: var(--navy);
  font-size: 1.18rem;
  margin-bottom: 12px;
}
.proj-services {
  font-size: .9rem;
  color: var(--muted);
  margin-bottom: 20px;
  flex: 1;
}
.proj-meta {
  display: flex;
  flex-direction: column;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.proj-meta strong {
  font-size: 1.4rem;
  color: var(--navy);
  font-weight: 800;
  letter-spacing: -0.02em;
}
.proj-meta span:last-child {
  font-size: .82rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .05em;
}

/* =========== TIMELINE PROCESSUS =========== */
.timeline {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  counter-reset: step;
}
.timeline li {
  position: relative;
  padding: 32px 28px 28px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: var(--transition);
}
.timeline li:hover {
  transform: translateY(-3px);
  border-color: transparent;
  box-shadow: var(--shadow);
}
.t-num {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--blue), var(--navy));
  color: var(--white);
  font-weight: 800;
  font-size: 1.1rem;
  border-radius: 12px;
  margin-bottom: 18px;
  box-shadow: 0 6px 16px rgba(29, 111, 184, .3);
}
.timeline h3 { color: var(--navy); margin-bottom: 8px; font-size: 1.1rem; }
.timeline p { font-size: .94rem; margin: 0; }

/* =========== TÉMOIGNAGES =========== */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonial {
  background: var(--white);
  padding: 36px 32px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  margin: 0;
  position: relative;
  transition: var(--transition);
}
.testimonial:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  border-color: transparent;
}
.testimonial::before {
  content: '"';
  position: absolute;
  top: 14px;
  left: 24px;
  font-family: Georgia, serif;
  font-size: 4rem;
  color: var(--blue);
  opacity: .18;
  line-height: 1;
}
.testimonial p {
  font-style: italic;
  color: var(--text);
  margin-bottom: 24px;
  position: relative;
}
.testimonial footer {
  display: flex;
  flex-direction: column;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.testimonial footer strong {
  color: var(--blue);
  font-size: .94rem;
  font-weight: 700;
}
.testimonial footer span {
  color: var(--muted);
  font-size: .85rem;
  margin-top: 2px;
}

/* =========== PARTENAIRES =========== */
.partners {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 50px 70px;
  padding: 30px 0;
  filter: grayscale(0.2);
}
.partners span {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--navy);
  opacity: .82;
  letter-spacing: .02em;
  transition: var(--transition);
}
.partners span:hover {
  opacity: 1;
  transform: scale(1.05);
}
.partners .p-italic    { font-style: italic; }
.partners .p-underline { text-decoration: underline; }
.partners .p-light     { font-weight: 300; }

/* =========== CONTACT =========== */
.contact-grid {
  align-items: start;
  gap: 80px;
}
.signature {
  font-weight: 600;
  color: rgba(255, 255, 255, .9);
  margin-top: -8px;
  margin-bottom: 28px;
}
.why-list {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
}
.why-list li {
  position: relative;
  padding: 12px 0 12px 36px;
  color: rgba(255, 255, 255, .85);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
  font-size: .98rem;
}
.why-list li:last-child { border: 0; }
.why-list li::before {
  content: '';
  position: absolute;
  left: 0; top: 16px;
  width: 22px; height: 22px;
  background: var(--green);
  border-radius: 50%;
  opacity: .25;
}
.why-list li::after {
  content: '✓';
  position: absolute;
  left: 5px; top: 12px;
  width: 22px; height: 22px;
  display: grid;
  place-items: center;
  font-weight: 700;
  color: var(--green);
  font-size: .9rem;
}

.contact-card {
  background: var(--white);
  color: var(--text);
  padding: 40px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}
.contact-card h3 {
  color: var(--navy);
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}
.contact-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 0;
  color: var(--text);
  border-bottom: 1px solid var(--line);
  transition: var(--transition);
}
.contact-row:last-of-type { border: 0; padding-bottom: 22px; }
.contact-row:hover { color: var(--blue); }
.contact-row .ic {
  flex: none;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  background: rgba(29, 111, 184, .1);
  color: var(--blue);
  border-radius: 10px;
}
.contact-row .ic svg { width: 22px; height: 22px; }
.contact-row .ic-label {
  display: block;
  font-size: .78rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 2px;
}
.contact-row strong {
  font-weight: 600;
  color: var(--navy);
}

/* =========== FOOTER =========== */
.footer {
  background: var(--bg-dark);
  color: rgba(255, 255, 255, .7);
  padding: 40px 0;
  border-top: 1px solid rgba(255, 255, 255, .06);
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 18px;
}
.footer .brand-text strong { color: var(--white); }
.footer .brand-text em { color: rgba(255, 255, 255, .55); }
.copyright {
  font-size: .88rem;
  margin: 0;
  line-height: 1.7;
}

/* =========== ANIMATIONS REVEAL =========== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .8s ease, transform .8s cubic-bezier(.2, .65, .3, 1);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* =========== RESPONSIVE =========== */
@media (max-width: 980px) {
  .hero { padding: 130px 0 70px; }
  .hero-inner { grid-template-columns: 1fr; gap: 50px; }
  .two-col { grid-template-columns: 1fr; gap: 40px; }
  .pillar-grid, .bureau-grid { grid-template-columns: repeat(2, 1fr); }
  .lots-grid { grid-template-columns: 1fr; }
  .proj-grid { grid-template-columns: 1fr; }
  .proj-grid-2 { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: repeat(2, 1fr); }
  .testimonial-grid { grid-template-columns: 1fr; }
  .section { padding: 70px 0; }
  .contact-grid { gap: 40px; }
}

@media (max-width: 720px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: fixed;
    top: 76px;
    left: 0; right: 0;
    background: var(--white);
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    gap: 4px;
    transform: translateY(-110%);
    transition: transform .3s ease;
    box-shadow: var(--shadow);
    border-top: 1px solid var(--line);
  }
  .nav-links.is-open { transform: translateY(0); }
  .nav-links a { padding: 14px; }
  .stats-grid { grid-template-columns: 1fr; }
  .pillar-grid, .bureau-grid { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: 1fr; }
  .partners { gap: 28px 40px; }
  .partners span { font-size: 1.2rem; }
  .contact-card { padding: 28px; }
  .proj-card-large { padding: 28px; }
  h1 { font-size: 2rem; }
  h2 { font-size: 1.6rem; }
}