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assets/scss/components/_button.scss

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+@use "../core/variables" as *;
+@use "../core/mixins" as *;
+@use "sass:color";
+
+// =============================================================
+// Boutons — bloc composant .btn
+// =============================================================
+
+.btn {
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    gap: $spacing-xs;
+    padding: $spacing-sm $spacing-md;
+    border: 1px solid transparent;
+    border-radius: $radius-md;
+    text-decoration: none;
+    cursor: pointer;
+    text-align: center;
+    line-height: $line-height-tight;
+    font: inherit;
+    font-weight: $font-weight-semibold;
+
+    @include interactive-transition;
+
+    &:focus-visible {
+        @include focus-ring;
+    }
+
+    &:disabled,
+    &--disabled {
+        opacity: 0.65;
+        cursor: not-allowed;
+    }
+}
+
+.btn--primary {
+    background: $color-primary;
+    color: $color-bg-white;
+
+    &:hover {
+        background: color.scale($color-primary, $lightness: -14%);
+    }
+}
+
+.btn--secondary {
+    background: $color-text-muted;
+    color: $color-bg-white;
+
+    &:hover {
+        background: color.scale($color-text-muted, $lightness: -14%);
+    }
+}
+
+.btn--danger {
+    background: $color-danger;
+    color: $color-bg-white;
+
+    &:hover {
+        background: color.scale($color-danger, $lightness: -12%);
+    }
+}
+
+.btn--sm {
+    padding: $spacing-xs $spacing-sm;
+    font-size: $font-size-sm;
+}
+
+// Modificateur taille — boutons principaux dans les formulaires centrés
+.btn--lg {
+    padding: $spacing-sm $spacing-lg;
+}
+
+// Modificateur largeur — occupe toute la largeur de son conteneur
+.btn--full {
+    width: 100%;
+}
+
+// Variante de lien textuel.
+// Utiliser la combinaison BEM `.btn.btn--link`.
+.btn--link {
+    background: none;
+    border: none;
+    color: $color-primary;
+    cursor: pointer;
+    text-decoration: underline;
+    padding: 0;
+    font-size: inherit;
+    line-height: $line-height-base;
+
+    &:hover {
+        text-decoration: none;
+    }
+
+    &:focus-visible {
+        outline: 2px solid $focus-ring-color;
+        outline-offset: 2px;
+        box-shadow: none;
+    }
+}