7 files changed, 343 insertions, 0 deletions
diff --git a/cloud/app/src/style/base.css b/cloud/app/src/style/base.css
new file mode 100644
index 000000000..2c95cdbb7
--- /dev/null
+++ b/cloud/app/src/style/base.css
@@ -0,0 +1,8 @@
+html {
+  color-scheme: dark;
+  line-height: 1;
+}
+
+body {
+  font-family: var(--font-sans);
+}
diff --git a/cloud/app/src/style/component/button.css b/cloud/app/src/style/component/button.css
new file mode 100644
index 000000000..d10f7af53
--- /dev/null
+++ b/cloud/app/src/style/component/button.css
@@ -0,0 +1,102 @@
+[data-component="button"] {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  gap: var(--space-2);
+  padding: var(--space-3) var(--space-4);
+  border: 1px solid transparent;
+  border-radius: var(--space-2);
+  font-family: var(--font-sans);
+  font-size: var(--font-size-md);
+  font-weight: 500;
+  line-height: 1.25;
+  cursor: pointer;
+  transition: all 0.2s ease-in-out;
+  text-decoration: none;
+  user-select: none;
+
+  &:disabled {
+    opacity: 0.5;
+    cursor: not-allowed;
+  }
+
+  &:focus {
+    outline: none;
+    box-shadow: 0 0 0 2px var(--color-primary);
+  }
+
+  &[data-color="primary"] {
+    background-color: var(--color-primary);
+    color: var(--color-primary-text);
+    border-color: var(--color-primary);
+
+    &:hover:not(:disabled) {
+      background-color: var(--color-primary-hover);
+      border-color: var(--color-primary-hover);
+    }
+
+    &:active:not(:disabled) {
+      background-color: var(--color-primary-active);
+      border-color: var(--color-primary-active);
+    }
+  }
+
+  &[data-color="danger"] {
+    background-color: var(--color-danger);
+    color: var(--color-danger-text);
+    border-color: var(--color-danger);
+
+    &:hover:not(:disabled) {
+      background-color: var(--color-danger-hover);
+      border-color: var(--color-danger-hover);
+    }
+
+    &:active:not(:disabled) {
+      background-color: var(--color-danger-active);
+      border-color: var(--color-danger-active);
+    }
+
+    &:focus {
+      box-shadow: 0 0 0 2px var(--color-danger);
+    }
+  }
+
+  &[data-color="warning"] {
+    background-color: var(--color-warning);
+    color: var(--color-warning-text);
+    border-color: var(--color-warning);
+
+    &:hover:not(:disabled) {
+      background-color: var(--color-warning-hover);
+      border-color: var(--color-warning-hover);
+    }
+
+    &:active:not(:disabled) {
+      background-color: var(--color-warning-active);
+      border-color: var(--color-warning-active);
+    }
+
+    &:focus {
+      box-shadow: 0 0 0 2px var(--color-warning);
+    }
+  }
+
+  &[data-size="small"] {
+    padding: var(--space-2) var(--space-3);
+    font-size: var(--font-size-sm);
+    gap: var(--space-1-5);
+  }
+
+  &[data-size="large"] {
+    padding: var(--space-4) var(--space-6);
+    font-size: var(--font-size-lg);
+    gap: var(--space-3);
+  }
+
+  [data-slot="icon"] {
+    display: flex;
+    align-items: center;
+    width: 1em;
+    height: 1em;
+  }
+}
diff --git a/cloud/app/src/style/index.css b/cloud/app/src/style/index.css
new file mode 100644
index 000000000..832a901e8
--- /dev/null
+++ b/cloud/app/src/style/index.css
@@ -0,0 +1,8 @@
+@import "./token/color.css";
+@import "./token/font.css";
+@import "./token/space.css";
+
+@import "./component/button.css";
+
+@import "./reset.css";
+@import "./base.css";
diff --git a/cloud/app/src/style/reset.css b/cloud/app/src/style/reset.css
new file mode 100644
index 000000000..d331ed724
--- /dev/null
+++ b/cloud/app/src/style/reset.css
@@ -0,0 +1,76 @@
+/* 1. Use a more-intuitive box-sizing model */
+*,
+*::before,
+*::after {
+  box-sizing: border-box;
+}
+
+/* 2. Remove default margin */
+* {
+  margin: 0;
+}
+
+/* 3. Enable keyword animations */
+@media (prefers-reduced-motion: no-preference) {
+  html {
+    interpolate-size: allow-keywords;
+  }
+}
+
+body {
+  /* 4. Add accessible line-height */
+  line-height: 1.5;
+  /* 5. Improve text rendering */
+  -webkit-font-smoothing: antialiased;
+}
+
+/* 6. Improve media defaults */
+img,
+picture,
+video,
+canvas,
+svg {
+  display: block;
+  max-width: 100%;
+}
+
+/* 7. Inherit fonts for form controls */
+input,
+button,
+textarea,
+select {
+  font: inherit;
+}
+
+/* 8. Avoid text overflows */
+p,
+h1,
+h2,
+h3,
+h4,
+h5,
+h6 {
+  overflow-wrap: break-word;
+}
+
+/* 9. Improve line wrapping */
+p {
+  text-wrap: pretty;
+}
+
+h1,
+h2,
+h3,
+h4,
+h5,
+h6 {
+  text-wrap: balance;
+}
+
+/*
+  10. Create a root stacking context
+*/
+#root,
+#__next {
+  isolation: isolate;
+}
diff --git a/cloud/app/src/style/token/color.css b/cloud/app/src/style/token/color.css
new file mode 100644
index 000000000..5382321e3
--- /dev/null
+++ b/cloud/app/src/style/token/color.css
@@ -0,0 +1,90 @@
+body {
+  --color-white: #ffffff;
+  --color-black: #000000;
+}
+
+[data-color-mode="dark"] {
+  /* OpenCode theme colors */
+  --color-bg: #0c0c0e;
+  --color-bg-surface: #161618;
+  --color-bg-elevated: #1c1c1f;
+
+  --color-text: #ffffff;
+  --color-text-muted: #a1a1a6;
+  --color-text-disabled: #68686f;
+
+  --color-accent: #007aff;
+  --color-accent-hover: #0056b3;
+  --color-accent-active: #004085;
+
+  --color-success: #30d158;
+  --color-warning: #ff9f0a;
+  --color-danger: #ff453a;
+
+  --color-border: #38383a;
+  --color-border-muted: #2c2c2e;
+
+  /* Button colors */
+  --color-primary: var(--color-accent);
+  --color-primary-hover: var(--color-accent-hover);
+  --color-primary-active: var(--color-accent-active);
+  --color-primary-text: #ffffff;
+
+  --color-danger: #ff453a;
+  --color-danger-hover: #d70015;
+  --color-danger-active: #a50011;
+  --color-danger-text: #ffffff;
+
+  --color-warning: #ff9f0a;
+  --color-warning-hover: #cc7f08;
+  --color-warning-active: #995f06;
+  --color-warning-text: #000000;
+
+  /* Surface colors */
+  --color-surface: var(--color-bg-surface);
+  --color-surface-hover: var(--color-bg-elevated);
+  --color-border: var(--color-border);
+}
+
+[data-color-mode="light"] {
+  /* OpenCode light theme colors */
+  --color-bg: #ffffff;
+  --color-bg-surface: #f5f5f7;
+  --color-bg-elevated: #ffffff;
+
+  --color-text: #1d1d1f;
+  --color-text-muted: #6e6e73;
+  --color-text-disabled: #86868b;
+
+  --color-accent: #007aff;
+  --color-accent-hover: #0056b3;
+  --color-accent-active: #004085;
+
+  --color-success: #30d158;
+  --color-warning: #ff9f0a;
+  --color-danger: #ff3b30;
+
+  --color-border: #d2d2d7;
+  --color-border-muted: #e5e5ea;
+
+  /* Button colors */
+  --color-primary: var(--color-accent);
+  --color-primary-hover: var(--color-accent-hover);
+  --color-primary-active: var(--color-accent-active);
+  --color-primary-text: #ffffff;
+
+  --color-danger: #ff3b30;
+  --color-danger-hover: #d70015;
+  --color-danger-active: #a50011;
+  --color-danger-text: #ffffff;
+
+  --color-warning: #ff9f0a;
+  --color-warning-hover: #cc7f08;
+  --color-warning-active: #995f06;
+  --color-warning-text: #000000;
+
+  /* Surface colors */
+  --color-surface: var(--color-bg-surface);
+  --color-surface-hover: var(--color-bg-elevated);
+  --color-border: var(--color-border);
+}
diff --git a/cloud/app/src/style/token/font.css b/cloud/app/src/style/token/font.css
new file mode 100644
index 000000000..1852af5b0
--- /dev/null
+++ b/cloud/app/src/style/token/font.css
@@ -0,0 +1,18 @@
+body {
+  --font-size-2xs: 0.6875rem;
+  --font-size-xs: 0.75rem;
+  --font-size-sm: 0.8125rem;
+  --font-size-md: 0.9375rem;
+  --font-size-lg: 1.125rem;
+  --font-size-xl: 1.25rem;
+  --font-size-2xl: 1.5rem;
+  --font-size-3xl: 1.875rem;
+  --font-size-4xl: 2.25rem;
+  --font-size-5xl: 3rem;
+  --font-size-6xl: 3.75rem;
+  --font-size-7xl: 4.5rem;
+  --font-size-8xl: 6rem;
+  --font-size-9xl: 8rem;
+  --font-mono: IBM Plex Mono;
+  --font-sans: Inter;
+}
diff --git a/cloud/app/src/style/token/space.css b/cloud/app/src/style/token/space.css
new file mode 100644
index 000000000..633c1238c
--- /dev/null
+++ b/cloud/app/src/style/token/space.css
@@ -0,0 +1,41 @@
+body {
+  --space-0: 0;
+  --space-px: 1px;
+  --space-0-5: 0.125rem;
+  --space-1: 0.25rem;
+  --space-1-5: 0.375rem;
+  --space-2: 0.5rem;
+  --space-2-5: 0.625rem;
+  --space-3: 0.75rem;
+  --space-3-5: 0.875rem;
+  --space-4: 1rem;
+  --space-4-5: 1.125rem;
+  --space-5: 1.25rem;
+  --space-6: 1.5rem;
+  --space-7: 1.75rem;
+  --space-8: 2rem;
+  --space-9: 2.25rem;
+  --space-10: 2.5rem;
+  --space-11: 2.75rem;
+  --space-12: 3rem;
+  --space-14: 3.5rem;
+  --space-16: 4rem;
+  --space-17: 4.25rem;
+  --space-18: 4.5rem;
+  --space-19: 4.75rem;
+  --space-20: 5rem;
+  --space-24: 6rem;
+  --space-28: 7rem;
+  --space-32: 8rem;
+  --space-36: 9rem;
+  --space-40: 10rem;
+  --space-44: 11rem;
+  --space-48: 12rem;
+  --space-52: 13rem;
+  --space-56: 14rem;
+  --space-60: 15rem;
+  --space-64: 16rem;
+  --space-72: 18rem;
+  --space-80: 20rem;
+  --space-96: 24rem;
+}