/* ============================================================
   NAULUM SOLUTIONS — Design System
   Bleu nuit · Émeraude · Corail — premium, sobre, aéronautique
   ============================================================ */

/* ---------- Variables ---------- */
:root {
  --bg:          #06182C;   /* fond principal bleu nuit */
  --bg-alt:      #040F1D;   /* fond alterné plus sombre */
  --bg-raise:    #0A2240;   /* surfaces légèrement relevées */
  --text:        #F5F7FA;
  --text-soft:   #B8C7D9;
  --text-mute:   #7189A3;
  --accent:      #2DD6A3;   /* émeraude — CTA, chiffres, soulignés */
  --accent-soft: rgba(45, 214, 163, 0.12);
  --coral:       #E85C4A;   /* corail — touches ponctuelles */
  --border:      rgba(122, 168, 214, 0.16);
  --border-strong: rgba(122, 168, 214, 0.32);
  --glass:       rgba(255, 255, 255, 0.04);
  --glass-hover: rgba(255, 255, 255, 0.07);
  --radius:      14px;
  --radius-lg:   22px;
  --font-title:  "Space Grotesk", sans-serif;
  --font-body:   "Inter", sans-serif;
  --maxw:        1200px;
  --shadow:      0 24px 60px -30px rgba(0, 0, 0, 0.6);
}

/* ---------- Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: #5BE6BE; }
h1, h2, h3, h4 { font-family: var(--font-title); font-weight: 700; line-height: 1.15; letter-spacing: -0.02em; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section-alt { background: var(--bg-alt); }

/* ---------- Eyebrow / titres de section ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--accent);
  font-family: var(--font-title);
  font-size: 13px; font-weight: 600;
  letter-spacing: 0.18em; text-transform: uppercase;
  margin-bottom: 16px;
}
.eyebrow::before { content: ""; width: 28px; height: 2px; background: var(--accent); border-radius: 1px; }
.section-title { font-size: clamp(28px, 3.6vw, 44px); margin-bottom: 18px; }
.section-sub { color: var(--text-soft); max-width: 640px; font-size: 17px; }

/* ---------- Header ---------- */
.header {
  position: sticky; top: 0; z-index: 200;
  background: rgba(4, 15, 29, 0.85);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px; gap: 24px;
}
.logo-link { display: flex; align-items: center; }
.logo-link img { height: 42px; width: auto; }

.nav { display: flex; align-items: center; gap: 4px; }
.nav a, .nav button.nav-drop-btn {
  color: var(--text-soft);
  background: none; border: none;
  font-family: var(--font-body); font-size: 15px; font-weight: 500;
  padding: 10px 14px; border-radius: 999px;
  transition: color 0.2s, background 0.2s;
  display: inline-flex; align-items: center; gap: 6px;
}
.nav a:hover, .nav a.active, .nav button.nav-drop-btn:hover { color: var(--text); background: var(--glass-hover); }
.nav a.active { color: var(--accent); }

/* Dropdown Solutions */
.nav-drop { position: relative; }
.nav-drop-menu {
  position: absolute; top: calc(100% + 10px); left: 0;
  min-width: 240px;
  background: var(--bg-raise);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  padding: 8px;
  box-shadow: var(--shadow);
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: all 0.2s ease;
}
.nav-drop:hover .nav-drop-menu,
.nav-drop:focus-within .nav-drop-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-drop-menu a { display: block; padding: 11px 14px; border-radius: 10px; font-size: 14.5px; }
.nav-drop-menu a span { display: block; color: var(--text-mute); font-size: 12px; font-weight: 400; }

.header-actions { display: flex; align-items: center; gap: 12px; }
.lang-switch {
  display: inline-flex; align-items: center;
  border: 1px solid var(--border-strong); border-radius: 999px; overflow: hidden;
  font-size: 13px; font-weight: 600;
}
.lang-switch a { color: var(--text-mute); padding: 6px 12px; }
.lang-switch a.on { background: var(--accent); color: #04241A; }

/* CTA bouton */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-title); font-weight: 600; font-size: 15px;
  padding: 13px 26px; border-radius: 999px;
  border: 1px solid transparent;
  transition: all 0.22s ease;
  white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #04241A; }
.btn-primary:hover { background: #4FE3B7; color: #04241A; transform: translateY(-2px); box-shadow: 0 14px 34px -12px rgba(45, 214, 163, 0.5); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border-strong); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-sm { padding: 9px 18px; font-size: 13.5px; }

/* Burger mobile */
.burger { display: none; background: none; border: none; width: 44px; height: 44px; position: relative; }
.burger span { position: absolute; left: 10px; right: 10px; height: 2px; background: var(--text); border-radius: 2px; transition: all 0.25s; }
.burger span:nth-child(1) { top: 14px; } .burger span:nth-child(2) { top: 21px; } .burger span:nth-child(3) { top: 28px; }
.burger[aria-expanded="true"] span:nth-child(1) { top: 21px; transform: rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { top: 21px; transform: rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  min-height: 88vh;
  display: flex; align-items: center;
  padding: 110px 0 80px;
}
.hero-art { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.hero-art svg { width: 100%; height: 100%; object-fit: cover; }
.hero .container { position: relative; z-index: 2; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 9px;
  background: var(--accent-soft);
  border: 1px solid rgba(45, 214, 163, 0.35);
  color: var(--accent);
  font-family: var(--font-title); font-size: 12.5px; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase;
  padding: 8px 18px; border-radius: 999px;
  margin-bottom: 28px;
}
.hero-badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }
.hero h1 {
  font-size: clamp(38px, 6vw, 76px);
  margin-bottom: 24px;
  max-width: 850px;
}
.hero h1 .grad {
  background: linear-gradient(100deg, var(--accent) 20%, #6BD0F5 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { font-size: clamp(16px, 1.5vw, 19px); color: var(--text-soft); max-width: 620px; margin-bottom: 38px; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-baseline { margin-top: 56px; color: var(--text-mute); font-size: 14px; font-style: italic; }

/* ---------- KPI band ---------- */
.kpi-band { border-block: 1px solid var(--border); background: var(--bg-alt); }
.kpi-band-inner { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.kpi-item { padding: 38px 24px; text-align: center; border-inline-start: 1px solid var(--border); }
.kpi-item:first-child { border-inline-start: none; }
.kpi-value { font-family: var(--font-title); font-size: clamp(34px, 4vw, 52px); font-weight: 700; color: var(--accent); line-height: 1; }
.kpi-label { color: var(--text-soft); font-size: 14px; margin-top: 10px; }

/* ---------- Trust strip ---------- */
.trust-strip { padding: 26px 0; border-bottom: 1px solid var(--border); }
.trust-items { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px 38px; color: var(--text-soft); font-size: 13.5px; font-weight: 500; }
.trust-items span { display: inline-flex; align-items: center; gap: 8px; }
.trust-items svg { width: 17px; height: 17px; color: var(--accent); flex-shrink: 0; }

/* ---------- Cards ---------- */
.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 34px 30px;
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}
.card:hover { transform: translateY(-4px); border-color: var(--border-strong); background: var(--glass-hover); }
.card h3 { font-size: 19px; margin-bottom: 12px; }
.card p { color: var(--text-soft); font-size: 14.5px; }
.card .ic {
  width: 52px; height: 52px; border-radius: 14px;
  background: var(--accent-soft); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
}
.card .ic svg { width: 25px; height: 25px; }
.card-coral .ic { background: rgba(232, 92, 74, 0.12); color: var(--coral); }
.card-kpi-note { color: var(--accent); font-family: var(--font-title); font-size: 13.5px; font-weight: 600; margin-top: 14px; }
.card-link { display: inline-flex; align-items: center; gap: 6px; margin-top: 18px; font-weight: 600; font-size: 14.5px; }

/* Numbered feature card */
.card-num { font-family: var(--font-title); color: var(--accent); font-weight: 700; font-size: 15px; margin-bottom: 12px; letter-spacing: 0.06em; }

/* ---------- Module schema (3 couches) ---------- */
.schema { display: flex; flex-direction: column; gap: 10px; max-width: 560px; }
.schema-tier {
  background: var(--glass); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px 24px; text-align: center;
}
.schema-tier.feat {
  background: linear-gradient(120deg, rgba(45, 214, 163, 0.16), rgba(107, 208, 245, 0.08));
  border-color: rgba(45, 214, 163, 0.45);
}
.schema-tier .t-name { font-family: var(--font-title); font-weight: 700; font-size: 15px; }
.schema-tier .t-sub { color: var(--text-mute); font-size: 12.5px; margin-top: 4px; }
.schema-link { text-align: center; color: var(--accent); font-size: 18px; line-height: 1; }

/* Steps list */
.steps { display: flex; flex-direction: column; }
.steps li { display: flex; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--border); color: var(--text-soft); font-size: 15px; }
.steps li:last-child { border-bottom: none; }
.steps li::before {
  content: ""; flex-shrink: 0; width: 22px; height: 22px; margin-top: 2px;
  border-radius: 50%; background: var(--accent-soft);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%232DD6A3'%3E%3Cpath d='M13.485 1.929a1 1 0 0 1 0 1.414L6.414 10.414 2.929 6.929a1 1 0 1 1 1.414-1.414L6.414 7.586l5.657-5.657a1 1 0 0 1 1.414 0z'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: center; background-size: 12px;
  border: 1px solid rgba(45, 214, 163, 0.4);
}

/* Tech box */
.tech-box {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px;
  background: var(--bg-alt); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 28px;
}
.tech-box div b { display: block; font-family: var(--font-title); font-size: 12px; color: var(--text-mute); letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 5px; font-weight: 600; }
.tech-box div span { color: var(--accent); font-size: 14.5px; font-weight: 500; }

/* ---------- Timeline ---------- */
.timeline { position: relative; padding-left: 34px; max-width: 640px; }
.timeline::before { content: ""; position: absolute; left: 8px; top: 6px; bottom: 6px; width: 2px; background: var(--border-strong); border-radius: 1px; }
.timeline-item { position: relative; padding-bottom: 36px; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: ""; position: absolute; left: -33px; top: 5px;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--accent); border: 3px solid var(--bg);
  box-shadow: 0 0 0 2px var(--accent);
}
.timeline-date { font-family: var(--font-title); color: var(--accent); font-weight: 700; font-size: 14px; letter-spacing: 0.08em; text-transform: uppercase; }
.timeline-item h3 { font-size: 19px; margin: 6px 0; }
.timeline-item p { color: var(--text-soft); font-size: 14.5px; }

/* ---------- Badges reconnaissance ---------- */
.badges { display: flex; flex-wrap: wrap; gap: 14px; }
.badge {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--glass); border: 1px solid var(--border-strong);
  border-radius: 999px; padding: 12px 22px;
  font-family: var(--font-title); font-size: 14px; font-weight: 600;
}
.badge svg { width: 18px; height: 18px; color: var(--accent); flex-shrink: 0; }

/* ---------- Team ---------- */
.team-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 22px; }
.team-card { text-align: center; }
.team-avatar {
  width: 88px; height: 88px; margin: 0 auto 18px;
  border-radius: 50%; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.team-avatar img { width: 100%; height: 100%; object-fit: cover; }
.team-card h3 { font-size: 17px; }
.team-role { color: var(--accent); font-family: var(--font-title); font-size: 12.5px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; margin: 6px 0 12px; }
.team-card p { font-size: 13.5px; }

/* ---------- Soutiens ---------- */
.supporters { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; }
.supporter {
  display: inline-flex; align-items: center; gap: 12px;
  background: var(--glass); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 14px 24px;
  font-family: var(--font-title); font-weight: 600; font-size: 15px;
  color: var(--text-soft);
  transition: border-color 0.2s, color 0.2s;
}
.supporter:hover { border-color: var(--accent); color: var(--text); }
.supporter .mono {
  width: 38px; height: 38px; border-radius: 10px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700; color: #04241A;
  background: linear-gradient(135deg, var(--accent), #6BD0F5);
}
.supporter img { height: 34px; width: auto; }

/* ---------- News ---------- */
.news-filters { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 36px; }
.news-filters button {
  background: var(--glass); border: 1px solid var(--border-strong); color: var(--text-soft);
  font-family: var(--font-title); font-size: 13.5px; font-weight: 600;
  padding: 9px 20px; border-radius: 999px; transition: all 0.2s;
}
.news-filters button:hover { color: var(--text); border-color: var(--accent); }
.news-filters button.on { background: var(--accent); color: #04241A; border-color: var(--accent); }

.news-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 22px; }
.news-card {
  background: var(--glass); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden;
  transition: transform 0.25s, border-color 0.25s;
  display: flex; flex-direction: column;
}
.news-card:hover { transform: translateY(-4px); border-color: var(--border-strong); }
.news-visual { height: 150px; position: relative; overflow: hidden; }
.news-visual svg, .news-visual img { width: 100%; height: 100%; object-fit: cover; }
.news-body { padding: 22px 24px 26px; flex: 1; display: flex; flex-direction: column; }
.news-meta { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; font-size: 12px; }
.news-date { color: var(--text-mute); font-weight: 500; }
.news-tag {
  font-family: var(--font-title); font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
  font-size: 10.5px; padding: 4px 10px; border-radius: 999px;
  background: var(--accent-soft); color: var(--accent);
}
.news-tag.event { background: rgba(107, 208, 245, 0.12); color: #6BD0F5; }
.news-tag.newsletter { background: rgba(232, 92, 74, 0.12); color: var(--coral); }
.badge-exemple {
  font-size: 10px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  background: rgba(232, 92, 74, 0.15); color: var(--coral);
  border: 1px dashed rgba(232, 92, 74, 0.5);
  padding: 3px 9px; border-radius: 6px;
}
.news-card h3 { font-size: 17px; margin-bottom: 10px; }
.news-card p { color: var(--text-soft); font-size: 14px; flex: 1; }
.news-card .news-lieu { color: var(--text-mute); font-size: 12.5px; margin-top: 8px; }
.news-card .card-link { margin-top: 16px; }

details.past-events { margin-top: 30px; border: 1px solid var(--border); border-radius: var(--radius); }
details.past-events summary { cursor: pointer; padding: 18px 24px; font-family: var(--font-title); font-weight: 600; color: var(--text-soft); }
details.past-events .news-grid { padding: 0 24px 24px; }

/* Newsletter signup */
.newsletter-box {
  background: linear-gradient(120deg, rgba(45, 214, 163, 0.13), rgba(107, 208, 245, 0.06));
  border: 1px solid rgba(45, 214, 163, 0.4);
  border-radius: var(--radius-lg); padding: 44px 38px;
}
.newsletter-form { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
.newsletter-form input[type="email"] {
  flex: 1; min-width: 240px;
  background: var(--bg-alt); border: 1px solid var(--border-strong); border-radius: 999px;
  color: var(--text); padding: 13px 22px; font-family: var(--font-body); font-size: 15px;
}
.newsletter-form input[type="email"]::placeholder { color: var(--text-mute); }
.consent { display: flex; align-items: flex-start; gap: 10px; margin-top: 14px; font-size: 12.5px; color: var(--text-mute); }
.consent input { margin-top: 3px; accent-color: var(--accent); }
.form-msg { margin-top: 12px; font-size: 14px; font-weight: 500; }
.form-msg.ok { color: var(--accent); } .form-msg.err { color: var(--coral); }

/* ---------- Contact form ---------- */
.contact-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 40px; align-items: start; }
.form { display: grid; gap: 16px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field label { display: block; font-size: 13px; font-weight: 600; color: var(--text-soft); margin-bottom: 7px; }
.field input, .field select, .field textarea {
  width: 100%; background: var(--bg-alt);
  border: 1px solid var(--border-strong); border-radius: 12px;
  color: var(--text); padding: 13px 16px;
  font-family: var(--font-body); font-size: 15px;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(45, 214, 163, 0.18);
}
.field input::placeholder, .field textarea::placeholder { color: var(--text-mute); }
.field select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%237189A3'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 16px center; }
.contact-aside .card { margin-bottom: 18px; }
.contact-aside .card p { font-size: 15px; }
.contact-aside .card a { font-weight: 600; }
.socials { display: flex; gap: 12px; margin-top: 8px; }
.socials a {
  width: 44px; height: 44px; border-radius: 12px;
  background: var(--glass); border: 1px solid var(--border-strong);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-soft); transition: all 0.2s;
}
.socials a:hover { color: var(--accent); border-color: var(--accent); transform: translateY(-2px); }
.socials svg { width: 19px; height: 19px; }

/* ---------- CTA band ---------- */
.cta-band {
  background: linear-gradient(115deg, rgba(45, 214, 163, 0.15), rgba(107, 208, 245, 0.07)), var(--bg-alt);
  border: 1px solid rgba(45, 214, 163, 0.35);
  border-radius: var(--radius-lg);
  padding: 64px 44px; text-align: center;
}
.cta-band h2 { font-size: clamp(26px, 3.4vw, 40px); margin-bottom: 16px; }
.cta-band p { color: var(--text-soft); max-width: 600px; margin: 0 auto 30px; }

/* ---------- Footer ---------- */
.footer { background: var(--bg-alt); border-top: 1px solid var(--border); padding: 64px 0 32px; margin-top: 96px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.4fr; gap: 40px; margin-bottom: 48px; }
.footer h4 { font-size: 13px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-mute); margin-bottom: 18px; }
.footer-col a { display: block; color: var(--text-soft); font-size: 14.5px; padding: 5px 0; }
.footer-col a:hover { color: var(--accent); }
.footer-brand img { height: 40px; margin-bottom: 16px; }
.footer-brand p { color: var(--text-mute); font-size: 13.5px; max-width: 280px; }
.footer-news input[type="email"] {
  width: 100%; background: var(--bg); border: 1px solid var(--border-strong); border-radius: 10px;
  color: var(--text); padding: 11px 14px; font-size: 14px; margin-bottom: 10px; font-family: var(--font-body);
}
.footer-bottom { border-top: 1px solid var(--border); padding-top: 26px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 14px; color: var(--text-mute); font-size: 13px; }
.footer-bottom a { color: var(--text-mute); margin-left: 18px; }
.footer-bottom a:hover { color: var(--accent); }

/* ---------- Reveal animations ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Pages légales ---------- */
.legal-content { max-width: 760px; }
.legal-content h2 { font-size: 22px; margin: 40px 0 14px; }
.legal-content p, .legal-content li { color: var(--text-soft); font-size: 15px; margin-bottom: 12px; }
.legal-content ul { list-style: disc; padding-left: 22px; }

/* ---------- Hero éditorial (pages internes) ---------- */
.page-hero { padding: 130px 0 70px; position: relative; overflow: hidden; }
.page-hero h1 { font-size: clamp(34px, 5vw, 60px); max-width: 800px; margin-bottom: 20px; }
.page-hero .section-sub { font-size: 18px; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .hero { min-height: auto; padding: 90px 0 60px; }
  .kpi-item { border-inline-start: none; border-top: 1px solid var(--border); }
  .kpi-item:first-child { border-top: none; }
  /* Nav mobile */
  .burger { display: block; }
  .nav {
    position: fixed; top: 72px; left: 0; right: 0; bottom: 0;
    background: var(--bg-alt);
    flex-direction: column; align-items: stretch; gap: 0;
    padding: 24px; overflow-y: auto;
    transform: translateX(100%); transition: transform 0.3s ease;
    z-index: 190;
  }
  .nav.open { transform: translateX(0); }
  .nav a, .nav button.nav-drop-btn { padding: 15px 12px; border-radius: 10px; font-size: 17px; width: 100%; justify-content: space-between; }
  .nav-drop-menu { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: none; background: transparent; padding-left: 16px; display: none; }
  .nav-drop.open .nav-drop-menu { display: block; }
  .header-cta-desktop { display: none; }
}
@media (max-width: 480px) {
  .container { padding: 0 18px; }
  .hero-ctas .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; }
}