diff --git a/package-lock.json b/package-lock.json
index eeafc51..057a867 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,6 +9,7 @@
       "version": "1.0.0",
       "dependencies": {
         "@expo-google-fonts/inter": "^0.4.2",
+        "@expo-google-fonts/jetbrains-mono": "^0.4.1",
         "@expo-google-fonts/space-grotesk": "^0.4.1",
         "@expo/ui": "~56.0.14",
         "@react-navigation/bottom-tabs": "^7.18.18",
@@ -33,15 +34,17 @@
         "expo-system-ui": "~56.0.5",
         "expo-web-browser": "~56.0.5",
         "lucide-react": "^1.38.0",
+        "lucide-react-native": "^1.38.0",
         "nativewind": "^4.2.6",
         "prettier-plugin-tailwindcss": "^0.5.14",
         "react": "19.2.3",
         "react-dom": "19.2.3",
         "react-native": "0.85.3",
         "react-native-gesture-handler": "~2.31.1",
-        "react-native-reanimated": "^4.3.1",
+        "react-native-reanimated": "4.3.1",
         "react-native-safe-area-context": "~5.7.0",
         "react-native-screens": "4.25.2",
+        "react-native-svg": "15.15.4",
         "react-native-web": "~0.21.0",
         "react-native-worklets": "0.8.3",
         "tailwindcss": "^3.4.19"
@@ -1288,6 +1291,12 @@
       "integrity": "sha512-syfiImMaDmq7cFi0of+waE2M4uSCyd16zgyWxdPOY7fN2VBmSLKEzkfbZgeOjJq61kSqPBNNtXjggiQiSD6gMQ==",
       "license": "MIT AND OFL-1.1"
     },
+    "node_modules/@expo-google-fonts/jetbrains-mono": {
+      "version": "0.4.1",
+      "resolved": "https://registry.npmjs.org/@expo-google-fonts/jetbrains-mono/-/jetbrains-mono-0.4.1.tgz",
+      "integrity": "sha512-CslACrtMOcRwoWXCO7OMEI+9w3fukWSoBtvNz46OqPoogEuuoY0tkDY1O8sFumk8t0pC6Cx0Xr95O0TOQhpkug==",
+      "license": "MIT AND OFL-1.1"
+    },
     "node_modules/@expo-google-fonts/material-symbols": {
       "version": "0.4.38",
       "resolved": "https://registry.npmjs.org/@expo-google-fonts/material-symbols/-/material-symbols-0.4.38.tgz",
@@ -3656,6 +3665,12 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/boolbase": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/boolbase/-/boolbase-1.0.0.tgz",
+      "integrity": "sha512-JZOSA7Mo9sNGB8+UjSgzdLtokWAky1zbztM3WRLCbZ70/3cTANmQmOdR7y2g+J0e2WXywy1yS468tY+IruqEww==",
+      "license": "ISC"
+    },
     "node_modules/bplist-creator": {
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/bplist-creator/-/bplist-creator-0.1.0.tgz",
@@ -4139,6 +4154,56 @@
         "hyphenate-style-name": "^1.0.3"
       }
     },
+    "node_modules/css-select": {
+      "version": "5.2.2",
+      "resolved": "https://registry.npmjs.org/css-select/-/css-select-5.2.2.tgz",
+      "integrity": "sha512-TizTzUddG/xYLA3NXodFM0fSbNizXjOKhqiQQwvhlspadZokn1KDy0NZFS0wuEubIYAV5/c1/lAr0TaaFXEXzw==",
+      "license": "BSD-2-Clause",
+      "dependencies": {
+        "boolbase": "^1.0.0",
+        "css-what": "^6.1.0",
+        "domhandler": "^5.0.2",
+        "domutils": "^3.0.1",
+        "nth-check": "^2.0.1"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/fb55"
+      }
+    },
+    "node_modules/css-tree": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/css-tree/-/css-tree-1.1.3.tgz",
+      "integrity": "sha512-tRpdppF7TRazZrjJ6v3stzv93qxRcSsFmW6cX0Zm2NVKpxE1WV1HblnghVv9TreireHkqI/VDEsfolRF1p6y7Q==",
+      "license": "MIT",
+      "dependencies": {
+        "mdn-data": "2.0.14",
+        "source-map": "^0.6.1"
+      },
+      "engines": {
+        "node": ">=8.0.0"
+      }
+    },
+    "node_modules/css-tree/node_modules/source-map": {
+      "version": "0.6.1",
+      "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
+      "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
+      "license": "BSD-3-Clause",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/css-what": {
+      "version": "6.2.2",
+      "resolved": "https://registry.npmjs.org/css-what/-/css-what-6.2.2.tgz",
+      "integrity": "sha512-u/O3vwbptzhMs3L1fQE82ZSLHQQfto5gyZzwteVIEyeaY5Fc7R4dapF/BvRoSYFeqfBk4m0V1Vafq5Pjv25wvA==",
+      "license": "BSD-2-Clause",
+      "engines": {
+        "node": ">= 6"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/fb55"
+      }
+    },
     "node_modules/css.escape": {
       "version": "1.5.1",
       "resolved": "https://registry.npmjs.org/css.escape/-/css.escape-1.5.1.tgz",
@@ -4285,6 +4350,61 @@
       "license": "MIT",
       "peer": true
     },
+    "node_modules/dom-serializer": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/dom-serializer/-/dom-serializer-2.0.0.tgz",
+      "integrity": "sha512-wIkAryiqt/nV5EQKqQpo3SToSOV9J0DnbJqwK7Wv/Trc92zIAYZ4FlMu+JPFW1DfGFt81ZTCGgDEabffXeLyJg==",
+      "license": "MIT",
+      "dependencies": {
+        "domelementtype": "^2.3.0",
+        "domhandler": "^5.0.2",
+        "entities": "^4.2.0"
+      },
+      "funding": {
+        "url": "https://github.com/cheeriojs/dom-serializer?sponsor=1"
+      }
+    },
+    "node_modules/domelementtype": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/domelementtype/-/domelementtype-2.3.0.tgz",
+      "integrity": "sha512-OLETBj6w0OsagBwdXnPdN0cnMfF9opN69co+7ZrbfPGrdpPVNBUj02spi6B1N7wChLQiPn4CSH/zJvXw56gmHw==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/fb55"
+        }
+      ],
+      "license": "BSD-2-Clause"
+    },
+    "node_modules/domhandler": {
+      "version": "5.0.3",
+      "resolved": "https://registry.npmjs.org/domhandler/-/domhandler-5.0.3.tgz",
+      "integrity": "sha512-cgwlv/1iFQiFnU96XXgROh8xTeetsnJiDsTc7TYCLFd9+/WNkIqPTxiM/8pSd8VIrhXGTf1Ny1q1hquVqDJB5w==",
+      "license": "BSD-2-Clause",
+      "dependencies": {
+        "domelementtype": "^2.3.0"
+      },
+      "engines": {
+        "node": ">= 4"
+      },
+      "funding": {
+        "url": "https://github.com/fb55/domhandler?sponsor=1"
+      }
+    },
+    "node_modules/domutils": {
+      "version": "3.2.2",
+      "resolved": "https://registry.npmjs.org/domutils/-/domutils-3.2.2.tgz",
+      "integrity": "sha512-6kZKyUajlDuqlHKVX1w7gyslj9MPIXzIFiz/rGu35uC1wMi+kMhQwGhl4lt9unC9Vb9INnY9Z3/ZA3+FhASLaw==",
+      "license": "BSD-2-Clause",
+      "dependencies": {
+        "dom-serializer": "^2.0.0",
+        "domelementtype": "^2.3.0",
+        "domhandler": "^5.0.3"
+      },
+      "funding": {
+        "url": "https://github.com/fb55/domutils?sponsor=1"
+      }
+    },
     "node_modules/ee-first": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
@@ -4312,6 +4432,18 @@
         "node": ">= 0.8"
       }
     },
+    "node_modules/entities": {
+      "version": "4.5.0",
+      "resolved": "https://registry.npmjs.org/entities/-/entities-4.5.0.tgz",
+      "integrity": "sha512-V0hjH4dGPh9Ao5p0MoRY6BVqtwCjhz6vI5LT8AJ55H+4g9/4vbHx1I54fS0XuclLhDHArPQCiMjDxjaL8fPxhw==",
+      "license": "BSD-2-Clause",
+      "engines": {
+        "node": ">=0.12"
+      },
+      "funding": {
+        "url": "https://github.com/fb55/entities?sponsor=1"
+      }
+    },
     "node_modules/error-stack-parser": {
       "version": "2.1.4",
       "resolved": "https://registry.npmjs.org/error-stack-parser/-/error-stack-parser-2.1.4.tgz",
@@ -6655,6 +6787,17 @@
         "react": "^16.5.1 || ^17.0.0 || ^18.0.0 || ^19.0.0"
       }
     },
+    "node_modules/lucide-react-native": {
+      "version": "1.38.0",
+      "resolved": "https://registry.npmjs.org/lucide-react-native/-/lucide-react-native-1.38.0.tgz",
+      "integrity": "sha512-wOgCXC8VZxIkrDK1160JA+7cBQ9njTFnFLQHLvrxLI5Cdhgz/dNN0j9+MS9aUJnYdBi0y3mNj73ZLnuzV6pYPg==",
+      "license": "ISC",
+      "peerDependencies": {
+        "react": "^16.5.1 || ^17.0.0 || ^18.0.0 || ^19.0.0",
+        "react-native": "*",
+        "react-native-svg": "^12.0.0 || ^13.0.0 || ^14.0.0 || ^15.0.0"
+      }
+    },
     "node_modules/lz-string": {
       "version": "1.5.0",
       "resolved": "https://registry.npmjs.org/lz-string/-/lz-string-1.5.0.tgz",
@@ -6680,6 +6823,12 @@
       "integrity": "sha512-ocnPZQLNpvbedwTy9kNrQEsknEfgvcLMvOtz3sFeWApDq1MXH1TqkCIx58xlpESsfwQOnuBO9beyQuNGzVvuhQ==",
       "license": "Apache-2.0"
     },
+    "node_modules/mdn-data": {
+      "version": "2.0.14",
+      "resolved": "https://registry.npmjs.org/mdn-data/-/mdn-data-2.0.14.tgz",
+      "integrity": "sha512-dn6wd0uw5GsdswPFfsgMp5NSB0/aDe6fK94YJV/AJDYXL6HVLWBsxeq7js7Ad+mU2K9LAlwpk6kN2D5mwCPVow==",
+      "license": "CC0-1.0"
+    },
     "node_modules/memoize-one": {
       "version": "5.2.1",
       "resolved": "https://registry.npmjs.org/memoize-one/-/memoize-one-5.2.1.tgz",
@@ -7315,6 +7464,18 @@
         "node": ">=10"
       }
     },
+    "node_modules/nth-check": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/nth-check/-/nth-check-2.1.1.tgz",
+      "integrity": "sha512-lqjrjmaOoAnWfMmBPL+XNnynZh2+swxiX3WUE0s4yEHI6m+AwrK2UZOimIRl3X/4QctVqS8AiZjFqyOGrMXb/w==",
+      "license": "BSD-2-Clause",
+      "dependencies": {
+        "boolbase": "^1.0.0"
+      },
+      "funding": {
+        "url": "https://github.com/fb55/nth-check?sponsor=1"
+      }
+    },
     "node_modules/nullthrows": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/nullthrows/-/nullthrows-1.1.1.tgz",
@@ -8585,6 +8746,21 @@
         "react-native": ">=0.82.0"
       }
     },
+    "node_modules/react-native-svg": {
+      "version": "15.15.4",
+      "resolved": "https://registry.npmjs.org/react-native-svg/-/react-native-svg-15.15.4.tgz",
+      "integrity": "sha512-boT/vIRgj6zZKBpfTPJJiYWMbZE9duBMOwPK6kCSTgxsS947IFMOq9OgIFkpWZTB7t229H24pDRkh3W9ZK/J1A==",
+      "license": "MIT",
+      "dependencies": {
+        "css-select": "^5.1.0",
+        "css-tree": "^1.1.3",
+        "warn-once": "0.1.1"
+      },
+      "peerDependencies": {
+        "react": "*",
+        "react-native": "*"
+      }
+    },
     "node_modules/react-native-web": {
       "version": "0.21.2",
       "resolved": "https://registry.npmjs.org/react-native-web/-/react-native-web-0.21.2.tgz",
diff --git a/package.json b/package.json
index 03c2414..cbadd88 100644
--- a/package.json
+++ b/package.json
@@ -4,6 +4,7 @@
   "version": "1.0.0",
   "dependencies": {
     "@expo-google-fonts/inter": "^0.4.2",
+    "@expo-google-fonts/jetbrains-mono": "^0.4.1",
     "@expo-google-fonts/space-grotesk": "^0.4.1",
     "@expo/ui": "~56.0.14",
     "@react-navigation/bottom-tabs": "^7.18.18",
@@ -28,15 +29,17 @@
     "expo-system-ui": "~56.0.5",
     "expo-web-browser": "~56.0.5",
     "lucide-react": "^1.38.0",
+    "lucide-react-native": "^1.38.0",
     "nativewind": "^4.2.6",
     "prettier-plugin-tailwindcss": "^0.5.14",
     "react": "19.2.3",
     "react-dom": "19.2.3",
     "react-native": "0.85.3",
     "react-native-gesture-handler": "~2.31.1",
-    "react-native-reanimated": "^4.3.1",
+    "react-native-reanimated": "4.3.1",
     "react-native-safe-area-context": "~5.7.0",
     "react-native-screens": "4.25.2",
+    "react-native-svg": "15.15.4",
     "react-native-web": "~0.21.0",
     "react-native-worklets": "0.8.3",
     "tailwindcss": "^3.4.19"
diff --git a/src/app/_layout.tsx b/src/app/_layout.tsx
index b12bbad..39a086f 100644
--- a/src/app/_layout.tsx
+++ b/src/app/_layout.tsx
@@ -1,8 +1,15 @@
 import { Stack } from 'expo-router';
 
 import { ThemeProvider } from '../theme';
+import { useAppFonts } from '../theme/typography';
 
 export default function RootLayout() {
+  const [fontsLoaded] = useAppFonts();
+
+  if (!fontsLoaded) {
+    return null;
+  }
+
   return (
     <ThemeProvider>
       <Stack />
diff --git a/src/app/index.tsx b/src/app/index.tsx
index d64e75e..7e47d6a 100644
--- a/src/app/index.tsx
+++ b/src/app/index.tsx
@@ -1,48 +1,137 @@
-import { StyleSheet, Text, View } from 'react-native';
+import { ArrowUp, ArrowUpRight, Plus } from 'lucide-react-native';
+import { useCallback } from 'react';
+import { ScrollView, StyleSheet, Text, View } from 'react-native';
+
+import { Button } from '@/components/Button';
+import { useTheme } from '@/theme/useTheme';
 
 import '../global.css';
-import { useTheme } from '../theme';
 
 export default function Index() {
   const { colors, spacing, typography } = useTheme();
 
+  const simulateSubmit = useCallback(async () => {
+    await new Promise<void>((resolve) => {
+      setTimeout(resolve, 1300);
+    });
+  }, []);
+
   return (
-    <View style={styles.container}>
-        <Text
-          style={[
-            styles.title,
-            {
-              color: colors.textSecondary,
-              fontFamily: typography.sectionLabel.fontFamily,
-              fontSize: typography.sectionLabel.fontSize,
-              lineHeight: typography.sectionLabel.lineHeight,
-              letterSpacing: typography.sectionLabel.letterSpacing,
-            },
-          ]}>
-          GradientButton variants
-        </Text>
-      </View>
+    <View style={[styles.screen, { backgroundColor: colors.deepBackground }]}>
+      <ScrollView
+        contentContainerStyle={[
+          styles.content,
+          {
+            padding: spacing[24],
+            gap: spacing[24],
+          },
+        ]}
+        showsVerticalScrollIndicator={false}
+      >
+        <View style={{ gap: spacing[8] }}>
+          <Text
+            style={[
+              typography.sectionLabel,
+              {
+                color: colors.textSecondary,
+                letterSpacing: 1.1,
+              },
+            ]}
+          >
+            BOUTONS · HAUTEUR 52 PX · RAYON 14 PX
+          </Text>
+        </View>
+
+        <View style={styles.row}>
+          <View style={styles.cell}>
+            <Button label="Publier" variant="primary" />
+            <Text style={[styles.caption, typography.digits, { color: colors.textSecondary }]}>Primaire</Text>
+          </View>
+          <View style={styles.cell}>
+            <Button label="Publier" variant="primary" />
+            <Text style={[styles.caption, typography.digits, { color: colors.textSecondary }]}>Pressé (tap)</Text>
+          </View>
+        </View>
+
+        <View style={styles.row}>
+          <View style={styles.cell}>
+            <Button label="Intéressé" variant="secondary" rightIcon={ArrowUpRight} />
+            <Text style={[styles.caption, typography.digits, { color: colors.textSecondary }]}>Secondaire</Text>
+          </View>
+          <View style={styles.cell}>
+            <Button label="Publier" variant="primary" disabled />
+            <Text style={[styles.caption, typography.digits, { color: colors.textSecondary }]}>Désactivé</Text>
+          </View>
+        </View>
+
+        <View style={styles.row}>
+          <View style={styles.cell}>
+            <Button label="Tout voir" variant="ghost" fullWidth={false} style={styles.autoWidthButton} />
+            <Text style={[styles.caption, typography.digits, { color: colors.textSecondary }]}>Texte</Text>
+          </View>
+          <View style={styles.cell}>
+            <Button label="Envoyer" variant="primary" autoLoading loadingLabel="Envoi..." onPress={simulateSubmit} />
+            <Text style={[styles.caption, typography.digits, { color: colors.textSecondary }]}>Chargement</Text>
+          </View>
+        </View>
+
+        <View style={styles.row}>
+          <View style={styles.cell}>
+            <Button label="Supprimer" variant="destructive" />
+            <Text style={[styles.caption, typography.digits, { color: colors.textSecondary }]}>Destructif</Text>
+          </View>
+          <View style={styles.cell}>
+            <View style={styles.iconRow}>
+              <Button
+                iconOnly
+                variant="secondary"
+                fullWidth={false}
+                icon={ArrowUp}
+                iconOnlyShape="default"
+                accessibilityLabel="Partager"
+              />
+              <Button
+                iconOnly
+                variant="primary"
+                fullWidth={false}
+                icon={Plus}
+                iconOnlyShape="round"
+                accessibilityLabel="Ajouter"
+              />
+            </View>
+            <Text style={[styles.caption, typography.digits, { color: colors.textSecondary }]}>Icône / FAB</Text>
+          </View>
+        </View>
+      </ScrollView>
+    </View>
   );
 }
 
 const styles = StyleSheet.create({
-  safeArea: {
+  screen: {
     flex: 1,
   },
-  container: {
+  content: {
+    paddingBottom: 40,
+  },
+  row: {
+    flexDirection: 'row',
+    gap: 14,
+  },
+  cell: {
     flex: 1,
-    paddingHorizontal: 20,
-    paddingTop: 24,
+    gap: 10,
+  },
+  caption: {
+    textAlign: 'center',
+  },
+  iconRow: {
+    flexDirection: 'row',
     justifyContent: 'center',
+    gap: 12,
   },
-  title: {
-    textTransform: 'uppercase',
-    marginBottom: 20,
-  },
-  stack: {
-    width: '100%',
-  },
-  disabledWrap: {
-    marginTop: 24,
+  autoWidthButton: {
+    alignSelf: 'center',
+    width: 140,
   },
 });
diff --git a/src/components/Button.tsx b/src/components/Button.tsx
new file mode 100644
index 0000000..6ccbaf3
--- /dev/null
+++ b/src/components/Button.tsx
@@ -0,0 +1,261 @@
+import { LinearGradient } from 'expo-linear-gradient';
+import type { LucideIcon } from 'lucide-react-native';
+import { useCallback, useMemo, useState } from 'react';
+import {
+  ActivityIndicator,
+  type GestureResponderEvent,
+  Pressable,
+  type StyleProp,
+  StyleSheet,
+  Text,
+  type TextStyle,
+  View,
+  type ViewStyle,
+} from 'react-native';
+import Animated, { useAnimatedStyle, useSharedValue, withTiming } from 'react-native-reanimated';
+
+import { useTheme } from '@/theme/useTheme';
+
+const BUTTON_HEIGHT = 52;
+const PRESSED_SCALE = 0.97;
+
+const AnimatedPressable = Animated.createAnimatedComponent(Pressable);
+
+type ButtonVariant = 'primary' | 'secondary' | 'ghost' | 'destructive';
+type IconOnlyShape = 'round' | 'default';
+
+type ButtonProps = {
+	label?: string;
+	variant?: ButtonVariant;
+	disabled?: boolean;
+	loading?: boolean;
+	loadingLabel?: string;
+	autoLoading?: boolean;
+	iconOnly?: boolean;
+	iconOnlyShape?: IconOnlyShape;
+	icon?: LucideIcon;
+	leftIcon?: LucideIcon;
+	rightIcon?: LucideIcon;
+	iconSize?: number;
+	iconStrokeWidth?: number;
+	fullWidth?: boolean;
+	onPress?: (event: GestureResponderEvent) => void | Promise<void>;
+	style?: StyleProp<ViewStyle>;
+	textStyle?: StyleProp<TextStyle>;
+	accessibilityLabel?: string;
+	testID?: string;
+};
+
+export function Button({
+	label,
+	variant = 'primary',
+	disabled = false,
+	loading = false,
+	loadingLabel,
+	autoLoading = false,
+	iconOnly = false,
+	iconOnlyShape = 'round',
+	icon,
+	leftIcon,
+	rightIcon,
+	iconSize = 20,
+	iconStrokeWidth = 2,
+	fullWidth = true,
+	onPress,
+	style,
+	textStyle,
+	accessibilityLabel,
+	testID,
+}: ButtonProps) {
+	const { colors, borderRadius, typography, gradients, gradientDirection } = useTheme();
+	const [internalLoading, setInternalLoading] = useState(false);
+	const [isPressed, setIsPressed] = useState(false);
+
+	const isLoading = loading || internalLoading;
+	const isDisabled = disabled || isLoading;
+	const scale = useSharedValue(1);
+
+	const animatedStyle = useAnimatedStyle(() => ({
+		transform: [{ scale: scale.value }],
+	}));
+
+	const handlePressIn = useCallback(() => {
+		if (isDisabled) {
+			return;
+		}
+
+		setIsPressed(true);
+		scale.value = withTiming(PRESSED_SCALE, { duration: 120 });
+	}, [isDisabled, scale]);
+
+	const handlePressOut = useCallback(() => {
+		setIsPressed(false);
+		scale.value = withTiming(1, { duration: 140 });
+	}, [scale]);
+
+	const handlePress = useCallback(
+		async (event: GestureResponderEvent) => {
+			if (!onPress || isDisabled) {
+				return;
+			}
+
+			const result = onPress(event);
+
+			if (!autoLoading || !(result instanceof Promise)) {
+				return;
+			}
+
+			setInternalLoading(true);
+			try {
+				await result;
+			} finally {
+				setInternalLoading(false);
+			}
+		},
+		[autoLoading, isDisabled, onPress],
+	);
+
+	const labelColor = useMemo(() => {
+		if (isDisabled) {
+			return colors.textDisabled;
+		}
+
+		if (variant === 'primary') {
+			return colors.textPrimary;
+		}
+
+		if (variant === 'destructive') {
+			return colors.danger;
+		}
+
+		if (variant === 'ghost') {
+			return colors.tertiary;
+		}
+
+		return colors.textPrimary;
+	}, [colors, isDisabled, variant]);
+
+	const loadingColor = variant === 'primary' && !isDisabled ? colors.textPrimary : labelColor;
+	const iconOnlyRadius = iconOnlyShape === 'round' ? BUTTON_HEIGHT / 2 : borderRadius.button;
+	const sideIconColor = !isDisabled && variant === 'secondary' ? colors.tertiary : labelColor;
+	const iconOnlyColor = labelColor;
+
+	const IconOnly = icon;
+	const LeftIcon = leftIcon;
+	const RightIcon = rightIcon;
+
+	const containerStyle: ViewStyle = {
+		width: fullWidth && !iconOnly ? '100%' : BUTTON_HEIGHT,
+		height: BUTTON_HEIGHT,
+		borderRadius: iconOnly ? iconOnlyRadius : borderRadius.button,
+		overflow: 'hidden',
+	};
+
+	const baseFillStyle: ViewStyle = {
+		flex: 1,
+		alignItems: 'center',
+		justifyContent: 'center',
+		flexDirection: 'row',
+		gap: 8,
+		borderRadius: iconOnly ? iconOnlyRadius : borderRadius.button,
+	};
+
+	const variantFillStyle: ViewStyle = (() => {
+		if (isDisabled) {
+			return {
+				backgroundColor: colors.surface,
+				borderWidth: 1,
+				borderColor: colors.border,
+			};
+		}
+
+		if (variant === 'secondary') {
+			return {
+				backgroundColor: colors.surfaceElevated,
+				borderWidth: 1,
+				borderColor: colors.border,
+			};
+		}
+
+		if (variant === 'ghost') {
+			return {
+				backgroundColor: 'transparent',
+			};
+		}
+
+		if (variant === 'destructive') {
+			return {
+				backgroundColor: 'rgba(255, 77, 109, 0.08)',
+				borderWidth: 1,
+				borderColor: colors.danger,
+			};
+		}
+
+		return {
+			backgroundColor: colors.surface,
+		};
+	})();
+
+	const contentPaddingStyle: ViewStyle = {
+		paddingHorizontal: iconOnly ? 0 : 24,
+	};
+
+	const textStyles: TextStyle = {
+		...typography.button,
+		color: labelColor,
+	};
+
+	const content = (
+		<>
+			{isLoading ? <ActivityIndicator color={loadingColor} size="small" /> : null}
+			{!isLoading && iconOnly && IconOnly ? (
+				<IconOnly color={iconOnlyColor} size={iconSize} strokeWidth={iconStrokeWidth} />
+			) : null}
+			{!iconOnly && !isLoading && LeftIcon ? (
+				<LeftIcon color={sideIconColor} size={iconSize} strokeWidth={iconStrokeWidth} />
+			) : null}
+			{!iconOnly && label ? <Text style={[textStyles, textStyle]}>{isLoading && loadingLabel ? loadingLabel : label}</Text> : null}
+			{!iconOnly && !isLoading && RightIcon ? (
+				<RightIcon color={sideIconColor} size={iconSize} strokeWidth={iconStrokeWidth} />
+			) : null}
+		</>
+	);
+
+	const fillNode =
+		variant === 'primary' && !isDisabled ? (
+			<LinearGradient
+				colors={isPressed ? gradients.signaturePressed : gradients.signature}
+				start={gradientDirection.start}
+				end={gradientDirection.end}
+				style={[baseFillStyle, contentPaddingStyle]}
+			>
+				{content}
+			</LinearGradient>
+		) : (
+			<View style={[baseFillStyle, contentPaddingStyle, variantFillStyle]}>{content}</View>
+		);
+
+	return (
+		<AnimatedPressable
+			testID={testID}
+			accessibilityRole="button"
+			accessibilityState={{ disabled: isDisabled, busy: isLoading }}
+			accessibilityLabel={accessibilityLabel ?? label}
+			disabled={isDisabled}
+			onPress={handlePress}
+			onPressIn={handlePressIn}
+			onPressOut={handlePressOut}
+			style={[styles.root, containerStyle, animatedStyle, style]}
+		>
+			{fillNode}
+		</AnimatedPressable>
+	);
+}
+
+export default Button;
+
+const styles = StyleSheet.create({
+	root: {
+		alignSelf: 'stretch',
+	},
+});
diff --git a/src/theme/ThemeProvider.tsx b/src/theme/ThemeProvider.tsx
index 2daf70e..e0d863e 100644
--- a/src/theme/ThemeProvider.tsx
+++ b/src/theme/ThemeProvider.tsx
@@ -1,6 +1,6 @@
 import { type PropsWithChildren, useMemo } from 'react';
 
-import colors from './colors';
+import { colors, glow, gradientDirection, gradients, palette } from './colors';
 import spacing, { borderRadius } from './spacing';
 import typography from './typography';
 import { ThemeContext } from './useTheme';
@@ -9,6 +9,10 @@ export function ThemeProvider({ children }: PropsWithChildren) {
   const value = useMemo(
     () => ({
       colors,
+      gradients,
+      glow,
+      gradientDirection,
+      palette,
       typography,
       spacing,
       borderRadius,
diff --git a/src/theme/colors.ts b/src/theme/colors.ts
index 822b0d5..3c9c92d 100644
--- a/src/theme/colors.ts
+++ b/src/theme/colors.ts
@@ -1,17 +1,173 @@
-export const colors = {
-  deepBackground: '#0A0A12',
-  surface: '#14141F',
-  surfaceElevated: '#1E1E2D',
-  border: '#2A2A3C',
-  primary: '#FF2E88',
-  secondary: '#7B3DFF',
-  tertiary: '#28E0F0',
-  success: '#3DDC97',
-  textPrimary: '#F4F4FA',
-  textSecondary: '#9A9AB4',
-  signatureGradient: ['#7B3DFF', '#FF2E88'] as const,
+import type { ColorValue, ViewStyle } from 'react-native';
+
+/* ------------------------------------------------------------------ *
+ * Palette brute — 1:1 avec les tokens :root de la maquette
+ * ------------------------------------------------------------------ */
+export const palette = {
+  /** Fond profond de l'app */
+  ink900: '#0A0A12',
+  /** Fond du canvas hors écran (planche de style / desktop) */
+  ink950: '#06060C',
+  /** Surface / carte */
+  ink800: '#14141F',
+  /** Surface élevée (champ, bouton secondaire, sheet) */
+  ink700: '#1E1E2D',
+  /** Bordure subtile */
+  ink600: '#2A2A3C',
+
+  magenta: '#FF2E88',
+  /** Magenta pressé — extrémité du dégradé assombri */
+  magentaPressed: '#E5216F',
+  /** Teinte magenta claire (texte sur fond magenta translucide) */
+  magentaTint: '#FFB4D4',
+
+  violet: '#7B3DFF',
+  violetPressed: '#6A2FE6',
+  violetTint: '#C9B6FF',
+
+  cyan: '#28E0F0',
+  green: '#3DDC97',
+  /** Ambre — seule teinte chaude du système (placeholders, alertes) */
+  amber: '#FFC478',
+
+  white: '#F4F4FA',
+  grey100: '#D6D6E6',
+  grey200: '#C9C9DC',
+  grey400: '#9A9AB4',
 } as const;
 
-export const signatureGradient = colors.signatureGradient;
+/* ------------------------------------------------------------------ *
+ * Tokens sémantiques
+ * ------------------------------------------------------------------ */
+export const colors = {
+  /* --- Fonds & surfaces ------------------------------------------- */
+  deepBackground: palette.ink900,
+  /** Fond hors-écran / derrière les sheets */
+  canvas: palette.ink950,
+  surface: palette.ink800,
+  surfaceElevated: palette.ink700,
+  border: palette.ink600,
+  /** Séparateur intra-carte, plus léger que `border` */
+  divider: 'rgba(255,255,255,0.12)',
+  /** Bloc squelette de chargement */
+  skeleton: 'rgba(244,244,250,0.07)',
+  /** Piste de barre de progression / slider */
+  track: 'rgba(244,244,250,0.28)',
+
+  /* --- Accents ---------------------------------------------------- */
+  primary: palette.magenta,
+  primaryPressed: palette.magentaPressed,
+  /** Fond de badge / chip actif teinté magenta */
+  primarySoft: 'rgba(255,46,136,0.14)',
+  /** Bordure de bouton destructif */
+  primaryBorder: 'rgba(255,46,136,0.55)',
+  onPrimary: '#FFFFFF',
+
+  secondary: palette.violet,
+  secondaryPressed: palette.violetPressed,
+  secondarySoft: 'rgba(123,61,255,0.14)',
+
+  tertiary: palette.cyan,
+  /** Fond de badge teinté cyan (line-up, « en cours ») */
+  tertiarySoft: 'rgba(40,224,240,0.12)',
+
+  /* --- États ------------------------------------------------------ */
+  success: palette.green,
+  successSoft: 'rgba(61,220,151,0.14)',
+  successBorder: 'rgba(61,220,151,0.5)',
+  /** Pas de rouge dans le système : le destructif emprunte le magenta */
+  danger: palette.magenta,
+  dangerSoft: 'rgba(255,46,136,0.14)',
+  warning: palette.amber,
+  warningSoft: 'rgba(255,196,120,0.14)',
+
+  /* --- Texte ------------------------------------------------------ */
+  textPrimary: palette.white,
+  /** Titres et libellés secondaires (le plus utilisé après textPrimary) */
+  textStrong: palette.grey100,
+  /** Corps de texte long — jamais du blanc pur sur fond sombre */
+  textBody: palette.grey200,
+  textSecondary: palette.grey400,
+  textOnAccent: '#FFFFFF',
+  textOnPrimarySoft: palette.magentaTint,
+  textOnSecondarySoft: palette.violetTint,
+  /** Texte désactivé (bouton off) — appliquer aussi opacity 0.45 */
+  textDisabled: palette.grey400,
+
+  /* --- Voiles sur média ------------------------------------------- */
+  /** Header / tab bar en blur */
+  scrimHeader: 'rgba(10,10,18,0.94)',
+  /** Bas d'image de couverture (B4, C3) */
+  scrimHeavy: 'rgba(10,10,18,0.86)',
+  scrimMedium: 'rgba(10,10,18,0.6)',
+  scrimLight: 'rgba(10,10,18,0.15)',
+  /** Bouton flottant sur photo */
+  glassFill: 'rgba(255,255,255,0.14)',
+
+  /* --- Carte (B7) ------------------------------------------------- */
+  mapBackground: '#0C1424',
+  mapWater: '#101A2E',
+  mapLand: '#0A0E1A',
+} as const;
+
+/* ------------------------------------------------------------------ *
+ * Dégradés — tuples pour expo-linear-gradient.
+ * La maquette utilise 135deg (haut-gauche → bas-droite) : d'où
+ * start {0,0} / end {1,1}.
+ * ------------------------------------------------------------------ */
+export const gradientDirection = {
+  start: { x: 0.2, y: 0 },
+  end: { x: 0.8, y: 1 },
+} as const;
+
+export const gradients = {
+  /** Dégradé signature — bouton primaire, FAB, logo */
+  signature: [palette.violet, palette.magenta],
+  /** Même dégradé à l'état pressé */
+  signaturePressed: [palette.violetPressed, palette.magentaPressed],
+  /** Voile vertical sur image de couverture (start {0,0} end {0,1}) */
+  coverScrim: [
+    colors.scrimMedium,
+    colors.scrimLight,
+    'rgba(10,10,18,0.98)',
+  ],
+} as const satisfies Record<string, readonly ColorValue[]>;
+
+/* ------------------------------------------------------------------ *
+ * Glow — les box-shadow CSS n'existent pas en RN.
+ * iOS lit shadow*, Android ne lit que elevation (et ignore la couleur
+ * avant API 28) : le glow rose y sera un simple relief.
+ * ------------------------------------------------------------------ */
+export const glow = {
+  /** --gl · sous un bouton primaire / une carte magenta */
+  primary: {
+    shadowColor: palette.magenta,
+    shadowOffset: { width: 0, height: 12 },
+    shadowOpacity: 0.55,
+    shadowRadius: 25,
+    elevation: 12,
+  },
+  /** --glv · variante violette */
+  violet: {
+    shadowColor: palette.violet,
+    shadowOffset: { width: 0, height: 12 },
+    shadowOpacity: 0.6,
+    shadowRadius: 25,
+    elevation: 12,
+  },
+  /** Ombre neutre de carte élevée */
+  card: {
+    shadowColor: '#000000',
+    shadowOffset: { width: 0, height: 8 },
+    shadowOpacity: 0.5,
+    shadowRadius: 18,
+    elevation: 6,
+  },
+} as const satisfies Record<string, ViewStyle>;
+
+export type ColorToken = keyof typeof colors;
+
+/** @deprecated utiliser `gradients.signature` */
+export const signatureGradient = gradients.signature;
 
 export default colors;
diff --git a/src/theme/typography.ts b/src/theme/typography.ts
index 2cd1b56..e312b51 100644
--- a/src/theme/typography.ts
+++ b/src/theme/typography.ts
@@ -1,67 +1,226 @@
-import { Inter_400Regular, Inter_500Medium } from '@expo-google-fonts/inter';
-import { SpaceGrotesk_600SemiBold, SpaceGrotesk_700Bold } from '@expo-google-fonts/space-grotesk';
+import {
+  Inter_400Regular,
+  Inter_500Medium,
+  Inter_600SemiBold,
+  Inter_700Bold,
+} from '@expo-google-fonts/inter';
+import {
+  JetBrainsMono_400Regular,
+  JetBrainsMono_500Medium,
+  JetBrainsMono_700Bold,
+} from '@expo-google-fonts/jetbrains-mono';
+import {
+  SpaceGrotesk_600SemiBold,
+  SpaceGrotesk_700Bold,
+} from '@expo-google-fonts/space-grotesk';
 import { useFonts } from 'expo-font';
+import type { TextStyle } from 'react-native';
 
+/* ------------------------------------------------------------------ *
+ * Familles
+ * Maquette Bahla : Space Grotesk (display) / Inter (UI) / JetBrains Mono
+ * (labels + chiffres). Le mono n'est PAS la mono système : c'est un
+ * choix de marque, il doit être chargé.
+ * ------------------------------------------------------------------ */
 export const fontFamily = {
   display: 'SpaceGrotesk_600SemiBold',
   displayBold: 'SpaceGrotesk_700Bold',
   body: 'Inter_400Regular',
   bodyMedium: 'Inter_500Medium',
-  mono: 'monospace',
+  bodySemi: 'Inter_600SemiBold',
+  bodyBold: 'Inter_700Bold',
+  mono: 'JetBrainsMono_400Regular',
+  monoMedium: 'JetBrainsMono_500Medium',
+  monoBold: 'JetBrainsMono_700Bold',
 } as const;
 
+/* ------------------------------------------------------------------ *
+ * Tokens
+ * letterSpacing est en px sur RN (pas en em) : chaque valeur ci-dessous
+ * est la conversion em × fontSize de la maquette.
+ * ------------------------------------------------------------------ */
 export const typography = {
-  display: {
-    fontFamily: fontFamily.display,
-    fontSize: 40,
+  /* --- Display · Space Grotesk ------------------------------------ */
+  hero: {
+    fontFamily: fontFamily.displayBold,
+    fontSize: 48,
     lineHeight: 48,
-    letterSpacing: -0.8,
+    letterSpacing: -1.44,
+  },
+  display: {
+    fontFamily: fontFamily.displayBold,
+    fontSize: 40,
+    lineHeight: 42,
+    letterSpacing: -1.2,
+  },
+  /** Grand titre d'écran (« Mes events », dashboard) */
+  screenTitleLg: {
+    fontFamily: fontFamily.displayBold,
+    fontSize: 28,
+    lineHeight: 32,
+    letterSpacing: -0.56,
   },
   screenTitle: {
     fontFamily: fontFamily.displayBold,
     fontSize: 26,
-    lineHeight: 32,
-    letterSpacing: -0.6,
+    lineHeight: 30,
+    letterSpacing: -0.52,
+  },
+  /** Titre de bloc / nom d'artiste en tête de line-up */
+  sectionTitle: {
+    fontFamily: fontFamily.displayBold,
+    fontSize: 20,
+    lineHeight: 24,
+    letterSpacing: -0.2,
   },
   cardTitle: {
     fontFamily: fontFamily.display,
     fontSize: 18,
-    lineHeight: 24,
-    letterSpacing: -0.2,
+    lineHeight: 22,
+    letterSpacing: 0,
   },
-  sectionLabel: {
-    fontFamily: fontFamily.mono,
-    fontSize: 11,
-    lineHeight: 16,
-    letterSpacing: 0.8,
-    textTransform: 'uppercase' as const,
+  /** Titre de carte compacte (grille, slot de line-up) */
+  cardTitleSm: {
+    fontFamily: fontFamily.display,
+    fontSize: 16,
+    lineHeight: 20,
+    letterSpacing: -0.16,
   },
+
+  /* --- Corps & UI · Inter ---------------------------------------- */
   body: {
     fontFamily: fontFamily.body,
     fontSize: 15,
+    lineHeight: 24,
+    letterSpacing: 0,
+  },
+  bodySm: {
+    fontFamily: fontFamily.body,
+    fontSize: 14,
     lineHeight: 22,
     letterSpacing: 0,
   },
+  /** Libellé de bouton — 52 px de haut, rayon 14 px */
+  button: {
+    fontFamily: fontFamily.bodySemi,
+    fontSize: 15,
+    lineHeight: 20,
+    letterSpacing: 0,
+  },
+  /** Nom d'organisateur, en-tête de ligne, valeur de champ */
+  label: {
+    fontFamily: fontFamily.bodySemi,
+    fontSize: 13,
+    lineHeight: 18,
+    letterSpacing: 0,
+  },
   metadata: {
     fontFamily: fontFamily.bodyMedium,
     fontSize: 13,
     lineHeight: 18,
     letterSpacing: 0,
   },
+  /** Texte de chip / filtre */
+  chip: {
+    fontFamily: fontFamily.bodySemi,
+    fontSize: 12,
+    lineHeight: 16,
+    letterSpacing: 0,
+  },
+  metadataSm: {
+    fontFamily: fontFamily.bodyMedium,
+    fontSize: 12,
+    lineHeight: 16,
+    letterSpacing: 0,
+  },
+  caption: {
+    fontFamily: fontFamily.body,
+    fontSize: 11,
+    lineHeight: 15,
+    letterSpacing: 0,
+  },
+  /** Libellé de la tab bar (4 onglets) */
+  tabLabel: {
+    fontFamily: fontFamily.bodyMedium,
+    fontSize: 10,
+    lineHeight: 13,
+    letterSpacing: 0,
+  },
+
+  /* --- Labels & chiffres · JetBrains Mono ------------------------- */
+  /** Overline de rangée / d'écran sur la planche de style */
+  overlineLg: {
+    fontFamily: fontFamily.monoMedium,
+    fontSize: 13,
+    lineHeight: 17,
+    letterSpacing: 1.82,
+    textTransform: 'uppercase',
+  },
+  /** Libellé de section dans l'app */
+  sectionLabel: {
+    fontFamily: fontFamily.monoMedium,
+    fontSize: 11,
+    lineHeight: 14,
+    letterSpacing: 1.76,
+    textTransform: 'uppercase',
+  },
+  /** Overline resserré (cartouches, en-têtes de colonne) */
+  overlineSm: {
+    fontFamily: fontFamily.monoMedium,
+    fontSize: 10,
+    lineHeight: 13,
+    letterSpacing: 1.8,
+    textTransform: 'uppercase',
+  },
+  /** Badge / pastille (« COMPLET », « CE SOIR ») */
+  badge: {
+    fontFamily: fontFamily.monoMedium,
+    fontSize: 9,
+    lineHeight: 12,
+    letterSpacing: 1.62,
+    textTransform: 'uppercase',
+  },
+  /** Chiffres, horaires, prix, distances — 22:30 · 25 CHF · 18 km */
   digits: {
     fontFamily: fontFamily.mono,
     fontSize: 11,
-    lineHeight: 16,
-    letterSpacing: 0.4,
+    lineHeight: 14,
+    letterSpacing: 0,
   },
-} as const;
+  digitsSm: {
+    fontFamily: fontFamily.mono,
+    fontSize: 10,
+    lineHeight: 13,
+    letterSpacing: 0,
+  },
+  /** Grand chiffre de statistique (dashboard organisateur) */
+  statValue: {
+    fontFamily: fontFamily.displayBold,
+    fontSize: 24,
+    lineHeight: 26,
+    letterSpacing: -0.48,
+  },
+} as const satisfies Record<string, TextStyle>;
 
-export const loadFonts = () =>
+export type TypographyToken = keyof typeof typography;
+
+/* ------------------------------------------------------------------ *
+ * Chargement — hook, donc préfixe `use` (règle react-hooks).
+ * ------------------------------------------------------------------ */
+export const useAppFonts = () =>
   useFonts({
     SpaceGrotesk_600SemiBold,
     SpaceGrotesk_700Bold,
     Inter_400Regular,
     Inter_500Medium,
+    Inter_600SemiBold,
+    Inter_700Bold,
+    JetBrainsMono_400Regular,
+    JetBrainsMono_500Medium,
+    JetBrainsMono_700Bold,
   });
 
+/** @deprecated conservé pour compat — utiliser `useAppFonts` */
+export const loadFonts = useAppFonts;
+
 export default typography;
diff --git a/src/theme/useTheme.ts b/src/theme/useTheme.ts
index 36a95dd..8c5ffad 100644
--- a/src/theme/useTheme.ts
+++ b/src/theme/useTheme.ts
@@ -1,11 +1,15 @@
 import { createContext, useContext } from 'react';
 
-import colors from './colors';
+import { colors, glow, gradientDirection, gradients, palette } from './colors';
 import spacing, { borderRadius } from './spacing';
 import typography from './typography';
 
 export type ThemeContextValue = {
   colors: typeof colors;
+  gradients: typeof gradients;
+  glow: typeof glow;
+  gradientDirection: typeof gradientDirection;
+  palette: typeof palette;
   typography: typeof typography;
   spacing: typeof spacing;
   borderRadius: typeof borderRadius;