/* Reset and base styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    /* Dark theme (default) */
    --bg-color: #0d1117;
    --surface-color: #161b22;
    --surface-hover: #21262d;
    --border-color: #30363d;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --accent-color: #58a6ff;
    --accent-hover: #79b8ff;
    --success-color: #3fb950;
    --warning-color: #d29922;
    --danger-color: #f85149;
    --claude-color: #cc785c;

    --column-bg: #161b22;
    --card-bg: #21262d;
    --card-hover: #30363d;

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);

    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
}

/* Light theme */
[data-theme="light"] {
    --bg-color: #f6f8fa;
    --surface-color: #ffffff;
    --surface-hover: #f3f4f6;
    --border-color: #d0d7de;
    --text-primary: #1f2328;
    --text-secondary: #656d76;
    --accent-color: #0969da;
    --accent-hover: #0550ae;
    --success-color: #1a7f37;
    --warning-color: #9a6700;
    --danger-color: #cf222e;
    --claude-color: #a85d3f;

    --column-bg: #ffffff;
    --card-bg: #f6f8fa;
    --card-hover: #eaeef2;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
}

html, body {
    height: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.5;
    overflow-x: auto;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
    background-color: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 24px;
}

.header h1 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* Board Selector */
.board-selector {
    display: flex;
    align-items: center;
    gap: 8px;
}

.board-selector select {
    padding: 8px 12px;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    cursor: pointer;
    min-width: 180px;
}

.board-selector select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.2);
}

.board-selector select option {
    background-color: var(--surface-color);
    color: var(--text-primary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Buttons */
.btn {
    padding: 8px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background-color: var(--surface-color);
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn:hover {
    background-color: var(--surface-hover);
}

.btn-primary {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    color: #fff;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    border-color: var(--accent-hover);
}

.btn-claude {
    background-color: var(--claude-color);
    border-color: var(--claude-color);
    color: #fff;
}

.btn-claude:hover {
    opacity: 0.9;
}

.btn-sm {
    padding: 4px 8px;
    font-size: 12px;
}

.btn-icon {
    padding: 4px 8px;
    background: transparent;
    border: none;
}

.btn-icon:hover {
    background-color: var(--surface-hover);
}

/* Toggle */
.toggle-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-secondary);
    cursor: pointer;
}

.toggle-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--claude-color);
}

/* Theme Toggle */
.theme-toggle {
    font-size: 18px;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: transform var(--transition-fast), background-color var(--transition-fast);
}

.theme-toggle:hover {
    transform: scale(1.1);
}

.theme-icon-light {
    display: none;
}

[data-theme="light"] .theme-icon-dark {
    display: none;
}

[data-theme="light"] .theme-icon-light {
    display: inline;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.modal-large {
    max-width: 800px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 24px;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 16px 20px;
    border-top: 1px solid var(--border-color);
}

/* Forms */
.form-group {
    padding: 12px 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
}

.form-group input[type="text"]:focus,
.form-group input[type="email"]:focus,
.form-group input[type="password"]:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.2);
}

.form-group input[type="checkbox"] {
    margin-right: 8px;
}

.form-hint {
    display: block;
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* Output content */
.output-content {
    padding: 20px;
    max-height: 500px;
    overflow-y: auto;
}

.output-content pre {
    font-family: 'SF Mono', Monaco, 'Courier New', monospace;
    font-size: 13px;
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-word;
    color: var(--text-primary);
}

/* Login Screen */
.login-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background-color: var(--bg-color);
}

.login-box {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    width: 100%;
    max-width: 360px;
    box-shadow: var(--shadow-lg);
}

.login-box h1 {
    text-align: center;
    margin-bottom: 24px;
    font-size: 1.5rem;
}

.login-error {
    color: var(--danger-color);
    font-size: 14px;
    margin-top: 12px;
    text-align: center;
}

/* CLAUDE.md Editor */
.claudemd-editor {
    padding: 16px 20px;
}

.claudemd-editor textarea {
    width: 100%;
    height: 500px;
    padding: 16px;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: 'SF Mono', Monaco, 'Courier New', monospace;
    font-size: 13px;
    line-height: 1.6;
    resize: vertical;
    tab-size: 2;
}

.claudemd-editor textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.2);
}

.claudemd-editor textarea:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Utility */
.hidden {
    display: none !important;
}

/* Expanded Card Modal (Fullscreen) */
.modal-fullscreen {
    max-width: 95vw;
    width: 95vw;
    height: 90vh;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
}

.modal-fullscreen .modal-header {
    flex-shrink: 0;
}

.expanded-card-header-content {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
}

.expanded-card-badges {
    display: flex;
    gap: 8px;
}

.expanded-card-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    padding: 0;
}

.expanded-card-info {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.expanded-card-description {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
    white-space: pre-wrap;
}

.expanded-card-output-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-height: 0;
}

.expanded-card-output-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
    background-color: var(--surface-hover);
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.expanded-card-output-header h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.expanded-card-output {
    flex: 1;
    overflow-y: auto;
    background-color: var(--bg-color);
    padding: 16px 20px;
}

.expanded-card-output pre {
    font-family: 'SF Mono', Monaco, 'Courier New', monospace;
    font-size: 13px;
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-word;
    color: var(--text-primary);
    margin: 0;
}

.expanded-card-output.streaming {
    border-left: 3px solid var(--claude-color);
}

.expanded-card-input-section {
    padding: 16px 20px;
    border-top: 1px solid var(--border-color);
    background-color: var(--surface-color);
    flex-shrink: 0;
}

.expanded-card-input-wrapper {
    display: flex;
    gap: 12px;
    align-items: flex-end;
}

.expanded-card-input-wrapper textarea {
    flex: 1;
    padding: 12px;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    resize: vertical;
    min-height: 60px;
    max-height: 150px;
}

.expanded-card-input-wrapper textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.2);
}

.expanded-card-input-wrapper .btn {
    flex-shrink: 0;
    height: 44px;
}

/* Column Expand Button */
.column-expand-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 16px;
    padding: 4px 8px;
    margin-left: auto;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.column-expand-btn:hover {
    color: var(--text-primary);
    background-color: var(--surface-hover);
}

/* Expanded Lane */
.expanded-lane-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 20px;
    overflow-y: auto;
    background-color: var(--bg-color);
}

.expanded-lane-content .task-card {
    max-width: 100%;
}