/* ============================================
   Function Maker - JustAddAI Theme
   ============================================ */

:root {
    /* JustAddAI Palette */
    --warm-cream: #FDF8F3;
    --bg-secondary: #F5EDE3;
    --bg-card: #ffffff;
    --bg-elevated: #f0ebe4;
    --forest-green: #2D4A3E;
    --deep-sage: #5B7B6D;
    --sky-blue: #89B4C8;
    --faith-gold: #D4AF37;
    --soft-gold: #E8D5B7;
    --rich-amber: #C4956A;
    --warm-brown: #6B4E3D;
    --text-primary: #3D3229;
    --text-secondary: #5A4D42;
    --text-muted: #8a7e73;
    --accent: #2D4A3E;
    --accent-hover: #234035;
    --accent-glow: rgba(45, 74, 62, 0.1);
    --accent-success: #4A7C59;
    --accent-danger: #b05050;
    --border: rgba(232, 213, 183, 0.5);
    --border-subtle: rgba(232, 213, 183, 0.3);

    /* Code area */
    --code-bg: #1e293b;
    --code-text: #e2e8f0;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(107, 78, 61, 0.05);
    --shadow-md: 0 10px 40px rgba(107, 78, 61, 0.08);
    --shadow-card: 0 4px 20px rgba(107, 78, 61, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(107, 78, 61, 0.1), 0 4px 6px -4px rgba(107, 78, 61, 0.1);

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;

    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;

    /* Transitions */
    --transition: 200ms ease;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Source Sans Pro', Georgia, serif;
    background: var(--warm-cream);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.7;
    font-size: 18px;
}

/* Main Content - Two Panel Layout */
.main-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg) var(--spacing-lg) 40px;
}

@media (max-width: 1200px) {
    .main-content {
        grid-template-columns: 1fr;
    }
}

/* Panels */
.panel {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border);
    background: var(--bg-secondary);
}

.panel-header h2 {
    font-family: 'Playfair Display', serif;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.builder-panel {
    display: flex;
    flex-direction: column;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
}

.output-panel {
    display: flex;
    flex-direction: column;
    max-height: calc(100vh - 120px);
}

/* Panel Tabs */
.panel-tabs {
    display: flex;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
}

.tab-btn {
    flex: 1;
    padding: var(--spacing-md);
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    border-bottom: 2px solid transparent;
}

.tab-btn:hover {
    color: var(--text-primary);
    background: var(--bg-elevated);
}

.tab-btn.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.tab-content {
    display: none;
    flex: 1;
    overflow: hidden;
}

.tab-content.active {
    display: flex;
    flex-direction: column;
}

/* Form Sections */
.form-section {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border);
}

.form-section h3 {
    font-family: 'Caveat', cursive;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Form Groups */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group:last-child {
    margin-bottom: 0;
}

label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    letter-spacing: 0.03em;
}

input[type="text"],
input[type="password"],
textarea,
select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: inherit;
    transition: border-color var(--transition), box-shadow var(--transition);
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

input::placeholder,
textarea::placeholder {
    color: var(--text-muted);
}

textarea {
    resize: vertical;
    min-height: 80px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    line-height: 1.6;
}

select {
    cursor: pointer;
}

.hint {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
}

/* Schema Fields */
.schema-fields {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.field-row {
    display: grid;
    grid-template-columns: 1fr 100px 80px 36px;
    gap: var(--spacing-sm);
    align-items: center;
}

.field-row input,
.field-row select {
    padding: var(--spacing-sm);
    font-size: 0.85rem;
}

.field-row label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.8rem;
    color: var(--text-secondary);
    cursor: pointer;
    margin: 0;
}

.field-row input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--accent);
    cursor: pointer;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: linear-gradient(135deg, var(--sky-blue), var(--deep-sage));
    color: white;
    border: none;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover:not(:disabled) {
    filter: brightness(1.1);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--bg-elevated);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover:not(:disabled) {
    border-color: var(--accent);
    color: var(--accent);
}

.btn-success {
    background: linear-gradient(135deg, var(--accent-success), #3a6a49);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-success:hover:not(:disabled) {
    filter: brightness(1.1);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-danger {
    background: var(--accent-danger);
    color: white;
}

.btn-danger:hover:not(:disabled) {
    filter: brightness(1.1);
}

.btn-small {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.8rem;
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 0.95rem;
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    background: transparent;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
}

.btn-icon:hover {
    color: var(--text-primary);
    background: var(--bg-elevated);
}

.btn-icon-sm {
    width: 28px;
    height: 28px;
    padding: 0;
    background: transparent;
    color: rgba(255, 255, 255, 0.7);
    border-radius: var(--radius-sm);
}

.btn-icon-sm:hover {
    color: white;
    background: rgba(255, 255, 255, 0.1);
}

.btn-remove {
    width: 36px;
    height: 36px;
    padding: 0;
    background: transparent;
    color: var(--text-muted);
    font-size: 1.25rem;
    border-radius: 50%;
}

.btn-remove:hover {
    background: rgba(176, 80, 80, 0.1);
    color: var(--accent-danger);
}

/* AI Assistant */
.ai-assistant-toggle {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.btn-ai {
    background: linear-gradient(135deg, var(--deep-sage), var(--forest-green));
    color: white;
    padding: var(--spacing-sm) var(--spacing-lg);
}

.btn-ai:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(45, 74, 62, 0.3);
}

/* AI Chat Panel */
.ai-chat-panel {
    display: none;
    flex-direction: column;
    margin: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.ai-chat-panel.visible {
    display: flex;
    min-height: 400px;
}

.chat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    background: linear-gradient(135deg, var(--deep-sage), var(--forest-green));
    color: white;
    font-weight: 500;
    font-size: 0.9rem;
}

.chat-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.chat-messages {
    height: 250px;
    overflow-y: auto;
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    background: var(--bg-secondary);
}

.chat-message {
    max-width: 90%;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    line-height: 1.5;
}

.chat-message.user {
    align-self: flex-end;
    background: var(--forest-green);
    color: white;
    border-bottom-right-radius: var(--radius-sm);
}

.chat-message.assistant {
    align-self: flex-start;
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-bottom-left-radius: var(--radius-sm);
}

.chat-message.system {
    align-self: center;
    background: var(--accent-glow);
    color: var(--accent);
    font-size: 0.85rem;
    text-align: center;
}

.chat-message pre {
    background: var(--code-bg);
    color: var(--code-text);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    margin-top: var(--spacing-sm);
    font-size: 0.75rem;
    overflow-x: auto;
    font-family: 'JetBrains Mono', monospace;
}

.chat-input-area {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    border-top: 1px solid var(--border);
    background: var(--bg-card);
}

.chat-input-area textarea {
    flex: 1;
    min-height: 40px;
    resize: none;
}

.apply-spec-btn {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--accent-success);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
}

.apply-spec-btn:hover {
    filter: brightness(1.1);
}

/* Typing Indicator */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: var(--spacing-sm);
}

.typing-indicator span {
    width: 6px;
    height: 6px;
    background: var(--text-muted);
    border-radius: 50%;
    animation: typing 1.4s infinite;
}

.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
    30% { transform: translateY(-4px); opacity: 1; }
}

/* Builder Actions */
.builder-actions {
    padding: var(--spacing-lg);
    display: flex;
    gap: var(--spacing-md);
    border-top: 1px solid var(--border);
    background: var(--bg-secondary);
}

/* Code Output */
.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
}

.code-lang {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.code-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.copy-feedback {
    font-size: 0.8rem;
    color: var(--accent-success);
    font-weight: 600;
    opacity: 0;
    transition: opacity var(--transition);
}

.copy-feedback.show {
    opacity: 1;
}

.code-output {
    flex: 1;
    margin: 0;
    padding: var(--spacing-lg);
    background: var(--code-bg);
    color: var(--code-text);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
    line-height: 1.7;
    overflow: auto;
    white-space: pre-wrap;
    tab-size: 2;
}

/* Test Section */
.test-section {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border);
}

.test-section h3 {
    font-family: 'Caveat', cursive;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
}

.test-inputs {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.test-input-group label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.type-hint {
    font-weight: 400;
    color: var(--text-muted);
    font-size: 0.75rem;
}

.required-badge {
    background: var(--accent-glow);
    color: var(--accent);
    font-size: 0.65rem;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.test-actions {
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    border-bottom: 1px solid var(--border);
}

.test-status {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.test-status.running {
    color: var(--sky-blue);
}

.test-status.success {
    color: var(--accent-success);
    font-weight: 600;
}

.test-status.error {
    color: var(--accent-danger);
    font-weight: 600;
}

/* Test Results */
.test-result-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.result-tabs {
    display: flex;
    padding: var(--spacing-sm) var(--spacing-lg);
    gap: var(--spacing-sm);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
}

.result-tab {
    padding: var(--spacing-xs) var(--spacing-md);
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    font-family: inherit;
}

.result-tab.active {
    background: var(--forest-green);
    border-color: var(--forest-green);
    color: white;
}

.result-tab:hover:not(.active) {
    border-color: var(--accent);
    color: var(--text-primary);
}

.result-content {
    display: none;
    flex: 1;
    overflow: hidden;
}

.result-content.active {
    display: block;
}

.result-box {
    margin: 0;
    padding: var(--spacing-lg);
    background: var(--code-bg);
    color: var(--code-text);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
    line-height: 1.6;
    overflow: auto;
    height: 100%;
    white-space: pre-wrap;
}

.result-box.success {
    border-left: 3px solid var(--accent-success);
}

.result-box.error {
    border-left: 3px solid var(--accent-danger);
}

/* Modals */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(61, 50, 41, 0.4);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(8px);
}

.modal.visible {
    display: flex;
}

.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    animation: modalSlideIn 0.2s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-large {
    max-width: 700px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border);
    background: var(--bg-secondary);
}

.modal-header h2 {
    font-family: 'Playfair Display', serif;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-body {
    padding: var(--spacing-lg);
    overflow-y: auto;
    max-height: 60vh;
}

/* Saved Functions List */
.saved-functions-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.saved-function-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: border-color var(--transition);
}

.saved-function-item:hover {
    border-color: var(--accent);
}

.saved-function-info h4 {
    font-family: 'Playfair Display', serif;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.saved-function-info p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.saved-function-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-muted);
}

.empty-state svg {
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 1100;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
    color: var(--text-primary);
    font-size: 0.9rem;
    animation: slideIn 0.3s ease;
    max-width: 350px;
}

.toast.success {
    border-left: 3px solid var(--accent-success);
    color: var(--accent-success);
}

.toast.error {
    border-left: 3px solid var(--accent-danger);
    color: var(--accent-danger);
}

.toast.warning {
    border-left: 3px solid var(--rich-amber);
    color: var(--warm-brown);
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* Spinner */
.spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Selection */
::selection {
    background: rgba(45, 74, 62, 0.2);
}

/* Responsive */
@media (max-width: 768px) {
    .main-content {
        padding: var(--spacing-md);
    }

    .builder-panel,
    .output-panel {
        max-height: none;
    }

    .field-row {
        grid-template-columns: 1fr 80px 60px 32px;
    }
}