/* Essaim-Agents Inc. — single stylesheet (mobile-first) */

:root {
  --navy: #0b0b2b;
  --green: #0f6b3f;
  --green-dark: #0a5030;
  --green-light: #86e3b4;
  --green-soft: #e3f1e9;
  --green-border: #b8ddc9;
  --silver: #c9ccd1;
  --offwhite: #f7f8fa;
  --text: #1a1a2e;
  --white: #ffffff;
  --maxw: 960px;
  --radius: 12px;
  --radius-sm: 8px;
  --font-stack: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--offwhite);
  color: var(--text);
  font-family: var(--font-stack);
  line-height: 1.6;
  overflow-wrap: break-word;
}

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

h1,
h2,
h3 {
  line-height: 1.25;
  margin: 0 0 0.5rem;
}

h1 { font-size: 1.75rem; }
h2 { font-size: 1.35rem; }
h3 { font-size: 1.1rem; }

p { margin: 0 0 1rem; }

a { color: var(--green); }
a:hover { color: var(--green-dark); }

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

.skip-link {
  position: absolute;
  top: 0;
  left: -9999px;
  z-index: 10;
  padding: 0.6rem 1rem;
  background: var(--white);
  color: var(--navy);
  border-radius: 0 0 var(--radius-sm) 0;
}

.skip-link:focus {
  left: 0;
}

/* ---------- Header ---------- */

.site-header {
  background: var(--navy);
  color: var(--white);
}

.header-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0.6rem 1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
}

.brand {
  order: 1;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--white);
  text-decoration: none;
}

.brand img {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
}

.brand-name {
  font-weight: 700;
  font-size: 0.95rem;
}

.site-nav {
  order: 3;
  flex: 1 1 100%;
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
}

.site-nav a {
  display: inline-block;
  padding: 0.35rem 0.6rem;
  border-radius: var(--radius-sm);
  color: var(--white);
  text-decoration: none;
}

.site-nav a:hover {
  background: rgba(255, 255, 255, 0.14);
  color: var(--white);
}

.site-nav a[aria-current="page"] {
  background: rgba(255, 255, 255, 0.16);
  font-weight: 700;
}

.lang-toggle {
  order: 2;
  margin-left: auto;
  display: flex;
  gap: 0.25rem;
}

.lang-btn {
  font: inherit;
  font-size: 0.85rem;
  padding: 0.3rem 0.6rem;
  border: 1px solid var(--silver);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--white);
  cursor: pointer;
}

.lang-btn[aria-pressed="true"] {
  background: var(--green);
  border-color: var(--green);
  font-weight: 700;
}

.site-header :focus-visible,
.site-footer :focus-visible {
  outline-color: var(--green-light);
}

/* ---------- Hero (home) ---------- */

.hero {
  background: var(--navy);
  color: var(--white);
  padding: 2rem 1rem 2.5rem;
}

.hero-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  text-align: center;
}

.hero h1 {
  font-size: 2rem;
  margin-bottom: 0.35rem;
}

.hero .mission {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--green-light);
  margin-bottom: 1rem;
}

.hero .lede {
  color: var(--silver);
  max-width: 42rem;
  margin: 0 auto;
}

.logo-tile {
  display: inline-block;
  background: var(--white);
  border: 1px solid var(--silver);
  border-radius: 16px;
  padding: 0.75rem;
  margin-bottom: 1.25rem;
}

.logo-tile img {
  border-radius: var(--radius);
}

/* ---------- Sections & cards ---------- */

.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 1.5rem 1rem;
}

.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.card {
  background: var(--white);
  border: 1px solid var(--silver);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.card h3 { margin-bottom: 0.4rem; }

.card h3 a {
  text-decoration: none;
}

.card h3 a:hover {
  text-decoration: underline;
}

.card p:last-child { margin-bottom: 0; }

.badge {
  display: inline-block;
  background: var(--green-soft);
  color: var(--green-dark);
  border: 1px solid var(--green-border);
  border-radius: 999px;
  padding: 0.15rem 0.6rem;
  font-size: 0.8rem;
  font-weight: 600;
}

.btn {
  display: inline-block;
  background: var(--green);
  color: var(--white);
  text-decoration: none;
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.btn:hover {
  background: var(--green-dark);
  color: var(--white);
}

.note {
  color: #4a4a63;
  font-size: 0.95rem;
}

.callout {
  background: var(--white);
  border: 1px solid var(--silver);
  border-left: 4px solid var(--green);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
  margin-bottom: 0;
}

/* ---------- Page head (project pages) ---------- */

.page-head {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 2rem 1rem 0.75rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.25rem;
}

.page-head-text {
  min-width: 0;
}

.page-logo {
  border-radius: var(--radius);
}

.logo-asap { width: 200px; }
.logo-arn  { width: 320px; border: 1px solid var(--silver); }
.logo-opc  { width: 120px; border-radius: 0; }

.tagline {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--navy);
  margin: 0;
}

/* ---------- Numbered steps ---------- */

.steps {
  list-style: none;
  counter-reset: step;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.steps li {
  counter-increment: step;
  position: relative;
  background: var(--white);
  border: 1px solid var(--silver);
  border-radius: var(--radius);
  padding: 0.9rem 0.9rem 0.9rem 3.25rem;
}

.steps li::before {
  content: counter(step);
  position: absolute;
  left: 0.9rem;
  top: 0.9rem;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  background: var(--green);
  color: var(--white);
  font-weight: 700;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ---------- Footer ---------- */

.site-footer {
  background: var(--navy);
  color: var(--silver);
  margin-top: 2rem;
  padding: 2rem 1rem;
}

.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  font-size: 0.95rem;
}

.site-footer p {
  margin: 0 0 0.75rem;
}

.site-footer a {
  color: var(--white);
}

.footer-nav ul {
  list-style: none;
  margin: 0 0 0.75rem;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 0.75rem;
}

.footer-meta {
  font-size: 0.875rem;
}

/* ---------- Wider screens ---------- */

@media (min-width: 640px) {
  .cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 720px) {
  .site-nav {
    order: 2;
    flex: 0 1 auto;
    margin-left: 1rem;
  }

  .lang-toggle {
    order: 3;
  }

  .page-head {
    flex-direction: row;
    align-items: center;
    gap: 2rem;
  }
}

@media (min-width: 900px) {
  .cards-3 {
    grid-template-columns: repeat(3, 1fr);
  }

  .hero {
    padding: 3rem 1rem 3.5rem;
  }

  .hero h1 {
    font-size: 2.4rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms;
    animation-iteration-count: 1;
    transition-duration: 0.001ms;
  }
}