/* =========================================================
   CARDS & GRIDS
   Grids, Cards, Content blocks, Comparison
   ========================================================= */

/* =========================================================
   GRIDS / CARDS
   → FUTURE FILE: components/cards.css
   ========================================================= */

/* Grids génériques - Auto-responsive avec minmax intelligent */
.columns {
  display: grid;
  gap: var(--gap-3);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
}

.grid {
  display: grid;
  gap: var(--gap-3);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
}

/* Variantes de grilles */
.grid-2 {
  display: grid;
  gap: var(--gap-3);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 400px), 1fr));
}

.grid-3 {
  display: grid;
  gap: var(--gap-3);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
}

.grid-4 {
  display: grid;
  gap: var(--gap-2);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
}

/* Grille asymétrique - pour featured content */
.grid-featured {
  display: grid;
  gap: var(--gap-3);
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .grid-featured {
    grid-template-columns: 2fr 1fr;
  }
}

@media (min-width: 1024px) {
  .grid-featured {
    grid-template-columns: 1.5fr 1fr 1fr;
  }
}

/* Grid avec gaps personnalisés */
.grid-tight {
  gap: var(--gap-1);
}

.grid-loose {
  gap: var(--gap-3);
}

.grid-centered {
  justify-content: center;
}

.grid-centered>article {
  width: 100%;
  max-width: var(--card-max-width, 360px);
}


/* ===== Orphelins ===== */

/* Cas "2 colonnes" (typiquement tablette) */
@media (min-width: 640px) {

  /* si le dernier est l'élément numéro (2n+1) => orphelin */
  .grid-centered> :last-child:nth-child(2n + 1) {
    grid-column: 1 / -1;
    /* prend toute la ligne */
    justify-self: center;
    /* centre la carte */
  }
}

/* Cas "3 colonnes" (typiquement desktop, comme ton screenshot) */
@media (min-width: 1024px) {

  /* si le dernier est l'élément numéro (3n+1) => orphelin */
  .grid-centered> :last-child:nth-child(3n + 1) {
    grid-column: 2;
    /* se place au milieu (colonne 2) */
  }
}

/* Cards */
.card {
  background: var(--surface);
  border: 1px solid var(--card-surface-border);
  border-radius: 20px;
  padding: clamp(16px, 2.2vh, 22px);
  transition: transform var(--duration-base) var(--ease-smooth),
    box-shadow var(--duration-base) var(--ease-smooth),
    border-color var(--duration-base) var(--ease-smooth);
  box-shadow: var(--shadow-card-base);
  will-change: transform;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-accent-20);
}

.soft-card {
  background: var(--card-soft-bg);
  border: 1px solid var(--card-surface-border-soft);
  position: relative;
  overflow: hidden;
}

.soft-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg,
      transparent,
      rgba(var(--c-accent), 0.04),
      transparent);
  transition: left var(--duration-slow) var(--ease-smooth);
}

.soft-card:hover::before {
  left: 100%;
}

.highlight-card {
  background: var(--card-highlight-bg);
  border: 1px solid var(--card-border-subtle);
  border-radius: 24px;
}

.proof-card {
  border: 1px solid var(--card-border-subtle);
  border-radius: 24px;
  padding: clamp(16px, 2.8vh, 26px);
  background: var(--surface);
  transition: transform var(--duration-base) var(--ease-smooth),
    box-shadow var(--duration-base) var(--ease-smooth);
  box-shadow: var(--shadow-card-base);
}

.proof-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
}

.card-foot {
  color: var(--muted);
  font-size: 0.95rem;
}

/* =========================================================
   HIERARCHICAL CONTENT BLOCKS
   → FUTURE FILE: components/cards.css (suite)
   ========================================================= */

/* Editorial banner - for key positioning content */
.editorial-banner {
  background: linear-gradient(135deg,
      rgba(var(--c-accent), 0.03) 0%,
      rgba(var(--c-accent), 0.01) 100%);
  border-left: 4px solid var(--accent);
  border-radius: 12px;
  padding: var(--space-responsive-md) clamp(24px, 4vw, 48px);
  margin-block: var(--stack-3);
}

.editorial-banner h3 {
  color: var(--accent-strong);
  font-size: clamp(1.125rem, 2.5vw, 1.25rem);
  margin-bottom: var(--stack-2);
  font-weight: 600;
}

.editorial-banner ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--stack-1);
}

.editorial-banner li {
  padding-left: 1.5rem;
  position: relative;
}

.editorial-banner li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

/* Two-column editorial layout */
.two-col-editorial {
  display: grid;
  gap: var(--gap-3);
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .two-col-editorial {
    grid-template-columns: 1fr 1.2fr;
  }
}

.two-col-editorial h3 {
  margin-bottom: var(--stack-2);
  color: var(--ink);
}

.two-col-editorial ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.two-col-editorial li {
  padding: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
}

.two-col-editorial li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

/* Featured block - for highlighting key technical content */
.featured-block {
  background: linear-gradient(135deg,
      rgba(var(--c-accent), 0.04) 0%,
      rgba(var(--c-paper), 1) 100%);
  border: 2px solid rgba(var(--c-accent), 0.15);
  border-radius: 16px;
  padding: clamp(28px, 4vh, 48px) clamp(24px, 4vw, 48px);
  margin-block: var(--stack-3);
  position: relative;
  overflow: hidden;
}

.featured-block::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-hover));
}

.featured-block h3 {
  color: var(--ink);
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  margin-bottom: var(--stack-2);
  font-weight: 700;
}

.featured-block ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: var(--stack-2);
}

.featured-block li {
  padding-left: 2rem;
  position: relative;
  line-height: 1.6;
}

.featured-block li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
  font-size: 1.2rem;
}

.featured-block strong {
  color: var(--accent-strong);
  font-weight: 600;
}

/* Explore links - discrete navigation from featured content */
.explore-links {
  text-align: center;
  margin-top: clamp(20px, 3vh, 32px);
  font-size: 0.875rem;
  color: var(--color-ink-65);
}

.explore-links a {
  color: var(--color-accent-85);
  text-decoration: none;
  transition: color 0.2s ease, opacity 0.2s ease;
  font-weight: 500;
}

.explore-links a:hover,
.explore-links a:focus-visible {
  color: var(--accent);
  opacity: 1;
}

.explore-links .link-separator {
  margin: 0 clamp(12px, 2vw, 20px);
  opacity: 0.4;
}

/* Note block - for secondary/contextual information */
.note-block {
  background: var(--color-slate-04);
  border: 1px solid rgba(var(--c-slate), 0.12);
  border-radius: 12px;
  padding: clamp(20px, 3vh, 28px) clamp(20px, 3vw, 32px);
  margin-block: var(--stack-3);
  font-size: 0.9rem;
  color: var(--muted);
}

.note-block h3 {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--slate);
  margin-bottom: var(--stack-2);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.note-block h3::before {
  content: "⚠";
  font-size: 1rem;
}

.note-block ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.note-block li {
  padding: 0.4rem 0;
  padding-left: 1rem;
  position: relative;
}

.note-block li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--slate);
}

/* Compact project cards */
.project-card-compact {
  background: var(--surface);
  border: 1px solid var(--card-surface-border);
  border-radius: 16px;
  padding: clamp(18px, 2.5vh, 24px);
  transition: transform var(--duration-base) var(--ease-smooth),
    box-shadow var(--duration-base) var(--ease-smooth),
    border-color var(--duration-base) var(--ease-smooth);
  box-shadow: var(--shadow-card-base);
  display: flex;
  flex-direction: column;
  gap: var(--stack-1);
}

.project-card-compact:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(var(--c-accent), 0.25);
}

.project-card-compact h3 {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: clamp(1.125rem, 2.5vw, 1.25rem);
  margin: 0;
}

.project-card-compact h3::before {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.project-card-compact p {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--ink);
  margin: 0;
}

.project-card-compact .card-foot {
  font-size: 0.875rem;
  margin-top: 0.5rem;
}

/* Project icons via data attribute */
.project-card-compact[data-icon="robot"] h3::before {
  content: "🤖";
}

.project-card-compact[data-icon="puzzle"] h3::before {
  content: "🧩";
}

.project-card-compact[data-icon="radar"] h3::before {
  content: "📡";
}

.project-card-compact[data-icon="brain"] h3::before {
  content: "🧠";
}

/* =========================================================
   COMPARISON GRID (do / don't)
   → FUTURE FILE: components/cards.css (suite)
   ========================================================= */

.comparison-grid {
  display: grid;
  gap: var(--gap-3);
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .comparison-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* "Do" column - positive emphasis */
.comparison-do {
  background: linear-gradient(135deg,
      var(--color-accent-06) 0%,
      var(--color-accent-02) 100%);
  border: 2px solid var(--color-accent-20);
  border-radius: 16px;
  padding: var(--space-responsive-md) clamp(24px, 3vw, 32px);
  position: relative;
}

.comparison-do::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent);
}

.comparison-do h3 {
  color: var(--accent-strong);
  font-size: clamp(1.125rem, 2.5vw, 1.375rem);
  margin-bottom: var(--stack-2);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.comparison-do h3::before {
  content: "✓";
  font-size: 1.5rem;
  color: var(--accent);
}

.comparison-do ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--stack-1);
}

.comparison-do li {
  padding-left: 1.75rem;
  position: relative;
  line-height: 1.6;
}

.comparison-do li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

/* "Don't" column - cadre neutre (périmètre, pas rejet) */
.comparison-dont {
  background: rgba(var(--c-slate), 0.02);
  border: 1px dashed rgba(var(--c-slate), 0.2);
  border-radius: 16px;
  padding: var(--space-responsive-md) clamp(24px, 3vw, 32px);
  color: var(--color-ink-60);
  opacity: 0.85;
}

.comparison-dont h3 {
  color: var(--color-ink-65);
  font-size: clamp(1.125rem, 2.5vw, 1.375rem);
  margin-bottom: var(--stack-2);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
}

.comparison-dont h3::before {
  content: "◇";
  font-size: 1.5rem;
  color: rgba(var(--c-slate), 0.5);
  opacity: 0.7;
}

.comparison-dont ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--stack-1);
}

.comparison-dont li {
  padding-left: 1.75rem;
  position: relative;
  line-height: 1.6;
}

.comparison-dont li::before {
  content: "·";
  position: absolute;
  left: 0.25rem;
  color: var(--slate);
  font-weight: 700;
  font-size: 1.5rem;
}

/* =========================================================
   EXPERTISE TIMELINE (process steps with numbers)
   ========================================================= */

.expertise-grid {
  display: grid;
  gap: var(--gap-3);
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .expertise-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .expertise-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.expertise-item {
  background: var(--surface);
  border: 1px solid var(--card-surface-border);
  border-radius: 16px;
  padding: clamp(24px, 3vh, 32px) clamp(20px, 2.5vw, 28px);
  position: relative;
  transition: transform var(--duration-base) var(--ease-smooth),
    box-shadow var(--duration-base) var(--ease-smooth),
    border-color var(--duration-base) var(--ease-smooth);
  box-shadow: var(--shadow-card-base);
  display: flex;
  flex-direction: column;
  gap: var(--stack-2);
}

.expertise-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(var(--c-accent), 0.3);
}

.expertise-number {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 800;
  color: transparent;
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  background-clip: text;
  -webkit-background-clip: text;
  line-height: 1;
  margin: 0;
  font-variant-numeric: tabular-nums;
}

.expertise-item h3 {
  font-size: clamp(1.125rem, 2.5vw, 1.25rem);
  margin: 0;
  line-height: 1.3;
  color: var(--ink);
}

.expertise-item p {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--muted);
  margin: 0;
}