:root {
    /* Dark Theme (Default) */
    --bg-color: #0d1117;
    --card-bg: #161b22;
    --border-color: #30363d;
    --text-primary: #c9d1d9;
    --text-secondary: #8b949e;
    --accent-color: #58a6ff;
    --accent-hover: #1f6feb;
    --success-color: #238636;
    --input-bg: #0d1117;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
    --mono-font: 'JetBrains Mono', monospace;
}

[data-theme="light"] {
    /* Light Theme */
    --bg-color: #ffffff;
    --card-bg: #f6f8fa;
    --border-color: #d0d7de;
    --text-primary: #24292f;
    --text-secondary: #57606a;
    --accent-color: #0969da;
    --accent-hover: #0969da;
    /* usually a bit darker, but fine for now */
    --success-color: #1a7f37;
    --input-bg: #ffffff;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    transition: background-color 0.3s, color 0.3s;
}

.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* Header */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo h1 {
    font-size: 1.25rem;
    font-weight: 600;
}

.btn {
    padding: 0.5rem 1rem;
    border-radius: 6px;
    border: 1px solid transparent;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.btn.primary {
    background-color: var(--success-color);
    color: white;
    border-color: rgba(27, 31, 35, 0.15);
}

.btn.primary:hover {
    background-color: #2ea043;
}

.btn.secondary {
    background-color: var(--card-bg);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn.secondary:hover {
    background-color: var(--border-color);
    border-color: var(--text-secondary);
}

.btn.danger {
    background-color: transparent;
    color: #f85149;
    border: 1px solid #f85149;
}

.btn.danger:hover {
    background-color: #f85149;
    color: white;
}

.form-actions {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px dashed var(--border-color);
}

/* GitHub Repository Section */
.github-repo-section {
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1rem;
}

.github-repo-section h2 {
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
}

.repo-input-group {
    display: flex;
    gap: 0.5rem;
}

.repo-input-group .form-input {
    flex: 1;
}

.repo-input-group .btn {
    white-space: nowrap;
}

.repo-status {
    font-size: 0.8rem;
    margin-top: 0.5rem;
    color: var(--text-secondary);
}

.repo-status.error {
    color: #f85149;
}

.repo-status.success {
    color: #3fb950;
}

/* Workflow Tabs */
.workflow-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.workflow-tab {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.4rem 0.75rem;
    font-size: 0.75rem;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
}

.workflow-tab:hover {
    border-color: var(--text-secondary);
}

.workflow-tab.active {
    background-color: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

.workflow-tab.modified::after {
    content: '●';
    color: #f0883e;
    margin-left: 0.25rem;
}

.workflow-tab.active.modified::after {
    color: white;
}

/* Token & Commit Section */
.token-section {
    margin-top: 0.75rem;
}

.token-section summary {
    cursor: pointer;
    font-size: 0.8rem;
    color: var(--text-secondary);
    padding: 0.25rem 0;
}

.token-section details[open] summary {
    margin-bottom: 0.5rem;
}

.token-input-group {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.25rem;
}

.token-input-group .form-input {
    flex: 1;
    font-size: 0.8rem;
}

.commit-section {
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px dashed var(--border-color);
}

.commit-input-group {
    display: flex;
    gap: 0.5rem;
}

.commit-input-group .form-input {
    flex: 1;
}

.commit-status {
    font-size: 0.8rem;
    margin-top: 0.5rem;
}

.commit-status.error {
    color: #f85149;
}

.commit-status.success {
    color: #3fb950;
}

.btn.success {
    background-color: #238636;
    color: white;
    border-color: #238636;
}

.btn.success:hover {
    background-color: #2ea043;
}

.btn.success:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-sm {
    padding: 0.35rem 0.75rem;
    font-size: 0.75rem;
}

.config-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.config-panel-header>div {
    flex: 1;
}


/* Main Content Layout */
.main-content {
    display: grid;
    grid-template-columns: 280px 1fr 1fr;
    flex: 1;
    overflow: hidden;
    gap: 1px;
    background-color: var(--border-color);
    /* Grid line effect */
}

/* Common Panel Styles */
.main-content>section,
.sidebar {
    background-color: var(--bg-color);
    padding: 1.5rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

h2 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

/* Sidebar Presets */
.preset-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.preset-item {
    padding: 1rem;
    border-radius: 6px;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.preset-item:hover {
    border-color: var(--text-secondary);
}

.preset-item.active {
    border-color: var(--accent-color);
    background-color: rgba(88, 166, 255, 0.1);
}

.preset-icon {
    width: 20px;
    height: 20px;
    fill: var(--text-secondary);
}

.preset-item.active .preset-icon {
    fill: var(--accent-color);
}

/* Config Panel */
.panel-header {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
    margin-bottom: 0;
}

.subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
    display: block;
    margin-top: 0.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
}

.form-input,
.form-select,
.form-textarea {
    padding: 0.5rem 0.75rem;
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-family: var(--font-family);
    font-size: 0.875rem;
    width: 100%;
}

.icon-btn {
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    font-size: 1.25rem;
    padding: 0.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s;
}

.icon-btn:hover {
    background-color: rgba(128, 128, 128, 0.1);
}

.custom-yaml-section {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px dashed var(--border-color);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.3);
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 200px;
    color: var(--text-secondary);
    text-align: center;
    font-size: 0.875rem;
    border: 1px dashed var(--border-color);
    border-radius: 6px;
}

/* Preview Panel */
.editor-container {
    flex: 1;
    background-color: var(--card-bg);
    border-radius: 6px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    position: relative;
}

pre {
    margin: 0;
    padding: 1.5rem;
    font-family: var(--mono-font);
    font-size: 0.875rem;
    line-height: 1.6;
    height: 100%;
    overflow: auto;
}

code {
    color: var(--text-primary);
}

/* Helper Text */
.helper-text {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

/* Preset Categories */
.preset-category {
    margin-bottom: 0.75rem;
}

.category-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    user-select: none;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.category-header:hover {
    background-color: var(--card-bg);
}

.category-icon {
    font-size: 1rem;
}

.category-toggle {
    margin-left: auto;
    font-size: 0.7rem;
    transition: transform 0.2s;
}

.category-items {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding-left: 0.5rem;
}

.preset-item {
    padding: 0.75rem;
    border-radius: 6px;
    background-color: var(--card-bg);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.preset-item:hover {
    border-color: var(--border-color);
}

.preset-name {
    font-size: 0.8rem;
    font-weight: 500;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(5px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.preset-item,
.form-group {
    animation: fadeIn 0.3s ease-out;
}