/* ==========================================================================
   Coqit — feuille de style unique du site vitrine
   ========================================================================== */

:root {
  --color-primary: #1c3f60;
  --color-primary-dark: #10263c;
  --color-accent: #2f9e6e;
  --color-accent-dark: #23794f;
  --color-text: #1f2937;
  --color-text-muted: #5b6472;
  --color-bg: #ffffff;
  --color-bg-alt: #f4f7f9;
  --color-border: #e3e8ec;
  --radius: 10px;
  --max-width: 1140px;
  --shadow: 0 10px 30px -12px rgba(16, 38, 60, 0.18);
  font-size: 16px;
}

* {
  box-sizing: border-box;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, Helvetica, Arial, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.nav__logo img {
  height: 34px;
}

.nav__toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.6rem;
  cursor: pointer;
  color: var(--color-primary);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav__links a {
  color: var(--color-text);
  font-weight: 500;
}

.nav__links a.active,
.nav__links a:hover {
  color: var(--color-accent);
  text-decoration: none;
}

.btn {
  display: inline-block;
  padding: 11px 22px;
  border-radius: 999px;
  font-weight: 600;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn--primary {
  background: var(--color-accent);
  color: #fff;
}

.btn--primary:hover {
  background: var(--color-accent-dark);
}

.btn--outline {
  background: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}

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

/* ---------- Hero ---------- */

.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  padding: 84px 0;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2rem, 4vw, 2.9rem);
  margin: 0 0 18px;
}

.hero p {
  font-size: 1.15rem;
  max-width: 620px;
  margin: 0 auto 32px;
  color: #dbe6ee;
}

.hero__actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero__actions .btn--outline {
  border-color: #fff;
  color: #fff;
}

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

/* ---------- Sections ---------- */

section {
  padding: 72px 0;
}

section.alt {
  background: var(--color-bg-alt);
}

.section-heading {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
}

.section-heading .eyebrow {
  display: inline-block;
  color: var(--color-accent);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.8rem;
  margin-bottom: 10px;
}

.section-heading h2 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  margin: 0 0 12px;
  color: var(--color-primary-dark);
}

.section-heading p {
  color: var(--color-text-muted);
}

.grid {
  display: grid;
  gap: 28px;
}

.grid--3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid--5 {
  grid-template-columns: repeat(5, 1fr);
}

.grid--2 {
  grid-template-columns: repeat(2, 1fr);
}

@media (max-width: 900px) {
  .grid--3,
  .grid--5 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 620px) {
  .grid--3,
  .grid--5,
  .grid--2 {
    grid-template-columns: 1fr;
  }
}

.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px 26px;
  box-shadow: var(--shadow);
}

.card h3 {
  margin-top: 0;
  color: var(--color-primary-dark);
}

.card p {
  color: var(--color-text-muted);
  margin-bottom: 0;
}

.card--engagement {
  text-align: center;
  box-shadow: none;
  border: none;
  background: transparent;
  padding: 12px;
}

.partners {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
  opacity: 0.85;
}

.partners img {
  height: 40px;
  width: auto;
  filter: grayscale(100%);
}

/* ---------- Forms ---------- */

.form-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(2, 1fr);
}

@media (max-width: 620px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
}

.form-grid .full {
  grid-column: 1 / -1;
}

label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
  font-size: 0.92rem;
}

input,
textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font: inherit;
  background: #fff;
}

input:focus,
textarea:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
}

.newsletter {
  display: flex;
  gap: 12px;
  max-width: 480px;
  margin: 0 auto;
  flex-wrap: wrap;
  justify-content: center;
}

.newsletter input {
  flex: 1 1 260px;
}

.form-note {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 10px;
}

/* ---------- Contact info blocks ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 40px;
}

@media (max-width: 800px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

.contact-block {
  margin-bottom: 26px;
}

.contact-block h3 {
  margin-bottom: 6px;
  color: var(--color-primary-dark);
}

.social-links {
  display: flex;
  gap: 16px;
}

.social-links a {
  font-weight: 600;
}

/* ---------- Blog ---------- */

.post-list {
  display: grid;
  gap: 24px;
}

.post-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  background: #fff;
}

.post-card time {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.post-card h2 {
  margin: 8px 0 10px;
}

.post-tags span {
  display: inline-block;
  background: var(--color-bg-alt);
  color: var(--color-text-muted);
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.78rem;
  margin-right: 6px;
}

article.post {
  max-width: 760px;
  margin: 0 auto;
}

article.post h1 {
  color: var(--color-primary-dark);
  margin-bottom: 6px;
}

article.post .meta {
  color: var(--color-text-muted);
  margin-bottom: 36px;
  font-size: 0.9rem;
}

article.post h2 {
  color: var(--color-primary-dark);
  margin-top: 40px;
}

article.post ul,
article.post ol {
  color: var(--color-text);
}

article.post p {
  margin-bottom: 18px;
}

.back-link {
  display: inline-block;
  margin-bottom: 24px;
}

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

.site-footer {
  background: var(--color-primary-dark);
  color: #cdd9e2;
  padding: 48px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}

@media (max-width: 700px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-grid img {
  height: 30px;
  margin-bottom: 12px;
  filter: brightness(0) invert(1);
}

.site-footer a {
  color: #cdd9e2;
}

.site-footer h4 {
  color: #fff;
  margin-bottom: 14px;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 20px;
  font-size: 0.85rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- Mobile nav ---------- */

@media (max-width: 800px) {
  .nav__toggle {
    display: block;
  }

  .nav__links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 24px;
    gap: 16px;
    border-bottom: 1px solid var(--color-border);
    display: none;
  }

  .nav__links.is-open {
    display: flex;
  }
}