/* ============================================================
   ALLIANCE SPATIAL — Feuille de style principale
   ============================================================ */

/* ---- Variables ------------------------------------------- */
:root {
  --color-primary:    #1a6fc4;
  --color-secondary:  #5b9bd5;
  --color-accent:     #7ec8e3;
  --color-dark:       #0d1b2a;
  --color-text:       #1c2b3a;
  --color-text-light: #4a6080;
  --color-white:      #ffffff;
  --color-card-bg:    rgba(255, 255, 255, 0.82);
  --color-card-border:rgba(122, 185, 230, 0.35);
  --font-primary:     'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  --font-heading:     'Segoe UI', Georgia, serif;
  --radius:           12px;
  --shadow:           0 4px 24px rgba(26, 111, 196, 0.12);
  --shadow-hover:     0 8px 36px rgba(26, 111, 196, 0.22);
  --transition:       0.28s ease;
  --max-width:        1200px;
  --header-h:         76px;
}

/* ---- Reset & Base ---------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-primary);
  color: var(--color-text);
  background-color: #e8f0f8;
  background-image: url('../images/fond_spatial_allege.jpg');
  background-size: cover;
  background-attachment: fixed;
  background-position: center top;
  background-repeat: no-repeat;
  line-height: 1.7;
  min-height: 100vh;
}

img { max-width: 100%; height: auto; display: block; }
a   { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-secondary); }

/* ---- Typographie ----------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-dark);
  line-height: 1.25;
  font-weight: 700;
  margin-bottom: .5em;
}
h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.15rem; }

p { margin-bottom: 1.1em; }

ul, ol { padding-left: 1.4em; margin-bottom: 1em; }
li { margin-bottom: .35em; }

blockquote {
  border-left: 4px solid var(--color-accent);
  padding: .8em 1.4em;
  margin: 1.5em 0;
  background: rgba(126, 200, 227, 0.12);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic;
  color: var(--color-text-light);
}

code, pre {
  font-family: 'Courier New', monospace;
  background: rgba(13, 27, 42, 0.08);
  border-radius: 4px;
  font-size: .9em;
}
code { padding: .15em .45em; }
pre  { padding: 1em 1.2em; overflow-x: auto; }

hr {
  border: none;
  border-top: 1px solid var(--color-card-border);
  margin: 2em 0;
}

/* ---- Layout ---------------------------------------------- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.site-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.site-main {
  flex: 1;
  padding: 2.5rem 0 4rem;
}

/* Grille principale content / sidebar */
.content-area {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 2rem;
  align-items: start;
}
.content-area.no-sidebar {
  grid-template-columns: 1fr;
  max-width: 900px;
  margin: 0 auto;
}

/* ---- Header ---------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-card-border);
  box-shadow: 0 2px 16px rgba(26, 111, 196, 0.08);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 1.5rem;
}

/* Logo */
.site-branding { display: flex; align-items: center; gap: .8rem; flex-shrink: 0; }

.custom-logo { max-height: 52px; width: auto; }

.site-title {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -.3px;
  color: var(--color-dark);
  line-height: 1.1;
}
.site-title a { color: inherit; }
.site-title a:hover { color: var(--color-primary); }

.site-description {
  font-size: .78rem;
  color: var(--color-text-light);
  margin: 0;
}

/* Navigation principale */
.main-navigation { display: flex; align-items: center; }

.main-navigation ul {
  list-style: none;
  display: flex;
  gap: .25rem;
  padding: 0;
  margin: 0;
}

.main-navigation li { position: relative; }

.main-navigation a {
  display: block;
  padding: .5rem .9rem;
  font-size: .95rem;
  font-weight: 600;
  color: var(--color-text);
  border-radius: 8px;
  transition: background var(--transition), color var(--transition);
}
.main-navigation a:hover,
.main-navigation .current-menu-item > a {
  background: rgba(26, 111, 196, 0.1);
  color: var(--color-primary);
}

/* Sous-menus */
.main-navigation .sub-menu {
  display: none;
  position: absolute;
  top: calc(100% + .4rem);
  left: 0;
  min-width: 180px;
  background: var(--color-white);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  flex-direction: column;
  gap: 0;
  padding: .4rem;
  z-index: 50;
}
.main-navigation li:hover > .sub-menu { display: flex; }
.main-navigation .sub-menu a { padding: .45rem .8rem; font-weight: 500; }

/* Burger */
.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-card-border);
  border-radius: 8px;
  padding: .45rem .6rem;
  cursor: pointer;
  color: var(--color-text);
}
.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  margin: 4px 0;
  transition: transform var(--transition);
}

/* Bouton CTA header */
.header-cta a {
  background: var(--color-primary);
  color: var(--color-white) !important;
  padding: .5rem 1.1rem !important;
  border-radius: 8px;
  font-weight: 700;
}
.header-cta a:hover {
  background: var(--color-secondary);
  color: var(--color-white) !important;
}

/* ---- Hero Banner ----------------------------------------- */
.hero-banner {
  position: relative;
  text-align: center;
  padding: 5rem 1.5rem 4rem;
  overflow: hidden;
}

.hero-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(255,255,255,0.10) 0%,
    rgba(255,255,255,0.50) 100%
  );
  pointer-events: none;
}

.hero-content { position: relative; z-index: 1; max-width: 760px; margin: 0 auto; }

.hero-title {
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 900;
  color: var(--color-dark);
  text-shadow: 0 2px 12px rgba(255,255,255,0.8);
  margin-bottom: .6rem;
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--color-text-light);
  margin-bottom: 2rem;
  text-shadow: 0 1px 6px rgba(255,255,255,0.9);
}

/* ---- Boutons --------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .72rem 1.6rem;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: .95rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  text-decoration: none;
}
.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}
.btn-primary:hover {
  background: #155aa0;
  border-color: #155aa0;
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(26,111,196,.35);
}
.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
}

/* ---- Cards ----------------------------------------------- */
.card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  backdrop-filter: blur(8px);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.card-thumbnail img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.card-body { padding: 1.4rem 1.6rem 1.6rem; }
.card-meta { font-size: .82rem; color: var(--color-text-light); margin-bottom: .5rem; }
.card-title { font-size: 1.2rem; margin-bottom: .5rem; }
.card-excerpt { font-size: .92rem; color: var(--color-text-light); margin-bottom: 1rem; }

/* ---- Articles grid --------------------------------------- */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.8rem;
}

/* ---- Article single -------------------------------------- */
.post-glass {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius);
  padding: 2.5rem 3rem;
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
}

.post-thumbnail {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  border-radius: var(--radius);
  margin-bottom: 2rem;
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: .85rem;
  color: var(--color-text-light);
  margin-bottom: 1.2rem;
}
.post-meta a { color: var(--color-primary); }

.post-content { font-size: 1.05rem; }
.post-content p { line-height: 1.85; }
.post-content h2, .post-content h3 { margin-top: 2em; }
.post-content img {
  border-radius: var(--radius);
  margin: 1.5em auto;
}

/* Entrée / sortie article */
.post-navigation {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-card-border);
}
.post-navigation a {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius);
  padding: .7rem 1.2rem;
  font-weight: 600;
  font-size: .9rem;
  transition: all var(--transition);
}
.post-navigation a:hover {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

/* ---- Sidebar --------------------------------------------- */
.sidebar { display: flex; flex-direction: column; gap: 1.5rem; }

.widget {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius);
  padding: 1.4rem 1.6rem;
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow);
}
.widget-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 1rem;
  padding-bottom: .6rem;
  border-bottom: 2px solid var(--color-accent);
}
.widget ul { list-style: none; padding: 0; margin: 0; }
.widget ul li {
  padding: .4rem 0;
  border-bottom: 1px solid rgba(122, 185, 230, 0.2);
  font-size: .93rem;
}
.widget ul li:last-child { border-bottom: none; }

/* Formulaire de recherche */
.search-form {
  display: flex;
  gap: .5rem;
}
.search-field {
  flex: 1;
  padding: .55rem .9rem;
  border: 1px solid var(--color-card-border);
  border-radius: 8px;
  font-size: .95rem;
  outline: none;
  background: rgba(255,255,255,0.9);
  transition: border-color var(--transition);
}
.search-field:focus { border-color: var(--color-primary); }
.search-submit {
  padding: .55rem 1rem;
  background: var(--color-primary);
  color: var(--color-white);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 700;
  transition: background var(--transition);
}
.search-submit:hover { background: var(--color-secondary); }

/* ---- Footer ---------------------------------------------- */
.site-footer {
  background: rgba(13, 27, 42, 0.88);
  backdrop-filter: blur(12px);
  color: rgba(255,255,255,0.75);
  padding: 3rem 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2.5rem;
  padding-bottom: 2.5rem;
}

.footer-col-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 1rem;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.footer-col p, .footer-col li { font-size: .9rem; line-height: 1.7; }
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col ul li { margin-bottom: .4rem; }
.footer-col a { color: rgba(255,255,255,0.95); }
.footer-col a:hover { color: var(--color-accent); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 1.2rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: .8rem;
  font-size: .85rem;
  color: rgba(255,255,255,0.90);
}
.footer-bottom a { color: var(--color-accent); }

/* ---- Page 404 -------------------------------------------- */
.error-404 {
  text-align: center;
  padding: 5rem 1rem;
}
.error-404 .error-code {
  font-size: clamp(5rem, 15vw, 10rem);
  font-weight: 900;
  color: var(--color-primary);
  opacity: .25;
  line-height: 1;
  margin-bottom: .2em;
}

/* ---- Commentaires ---------------------------------------- */
.comments-area {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-card-border);
}
.comments-title { margin-bottom: 1.5rem; }

.comment-list { list-style: none; padding: 0; }
.comment {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius);
  padding: 1.2rem 1.5rem;
  margin-bottom: 1rem;
  backdrop-filter: blur(6px);
}
.comment-meta { font-size: .82rem; color: var(--color-text-light); margin-bottom: .6rem; }
.comment-author b { color: var(--color-primary); }
.reply { margin-top: .6rem; }
.reply a { font-size: .85rem; font-weight: 600; color: var(--color-primary); }

/* Formulaire de commentaire */
.comment-form label { display: block; font-weight: 600; font-size: .9rem; margin-bottom: .3rem; }
.comment-form input[type="text"],
.comment-form input[type="email"],
.comment-form textarea {
  width: 100%;
  padding: .6rem .9rem;
  border: 1px solid var(--color-card-border);
  border-radius: 8px;
  font-size: .95rem;
  background: rgba(255,255,255,0.9);
  margin-bottom: 1rem;
  outline: none;
  transition: border-color var(--transition);
}
.comment-form input:focus,
.comment-form textarea:focus { border-color: var(--color-primary); }
.comment-form textarea { min-height: 130px; resize: vertical; }
.comment-form .submit { @extend .btn; }
#submit {
  background: var(--color-primary);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius);
  padding: .7rem 1.8rem;
  font-weight: 700;
  font-size: .95rem;
  cursor: pointer;
  transition: background var(--transition);
}
#submit:hover { background: var(--color-secondary); }

/* ---- Pagination ------------------------------------------ */
.pagination {
  display: flex;
  justify-content: center;
  gap: .5rem;
  margin-top: 3rem;
  flex-wrap: wrap;
}
.pagination .page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  font-weight: 600;
  font-size: .9rem;
  transition: all var(--transition);
}
.pagination .page-numbers:hover,
.pagination .page-numbers.current {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

/* ---- Utilitaires ----------------------------------------- */
.screen-reader-text {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
}
.text-center { text-align: center; }
.mt-1 { margin-top: .5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-3 { margin-bottom: 1.5rem; }

/* ---- Responsive ------------------------------------------ */
@media (max-width: 900px) {
  .content-area {
    grid-template-columns: 1fr;
  }
  .sidebar { order: -1; }
}

@media (max-width: 700px) {
  .menu-toggle { display: flex; flex-direction: column; }

  .main-navigation {
    display: none;
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--color-card-border);
    padding: 1rem 1.5rem;
    box-shadow: 0 8px 24px rgba(0,0,0,.1);
  }
  .main-navigation.is-open { display: block; }
  .main-navigation ul { flex-direction: column; gap: 0; }
  .main-navigation a { padding: .7rem .5rem; border-radius: 0; border-bottom: 1px solid var(--color-card-border); }
  .main-navigation .sub-menu { position: static; box-shadow: none; border: none; padding-left: 1rem; }
  .main-navigation li:hover > .sub-menu { display: flex; }

  .post-glass { padding: 1.5rem; }
  .hero-banner { padding: 3rem 1rem 2.5rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { justify-content: center; text-align: center; }
}