/* ============================================
   JSON Schema Form Generator — Styles
   Theme: Dark mode, Forest Moss palette
   ============================================ */

:root {
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    --primary: #22C55E;
    --primary-glow: rgba(34, 197, 94, 0.25);
    --secondary: #86EFAC;
    --accent: #A3E635;
    --accent-glow: rgba(163, 230, 53, 0.2);

    --bg-primary: #0A1A0D;
    --bg-card: #0f2413;
    --bg-card-hover: #142e18;
    --bg-input: #0d200f;
    --bg-input-focus: #112a14;

    --border-color: rgba(34, 197, 94, 0.12);
    --border-hover: rgba(34, 197, 94, 0.25);
    --border-focus: rgba(34, 197, 94, 0.5);

    --text-primary: #e6f4ea;
    --text-secondary: #8ba893;
    --text-muted: #5a7a64;
    --text-placeholder: #3d5c46;

    --danger: #ef4444;
    --danger-glow: rgba(239, 68, 68, 0.2);
    --warning: #f59e0b;
    --success: #22c55e;

    --radius: 12px;
    --radius-sm: 8px;
    --radius-xs: 6px;

    --shadow-card: 0 2px 16px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 24px var(--primary-glow);

    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: var(--font-family);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* --- App Container --- */
.app-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 24px 16px 40px;
}

/* --- Header --- */
.header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 24px;
}

.header-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0A1A0D;
    flex-shrink: 0;
    box-shadow: var(--shadow-glow);
}

.header-title {
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.header-subtitle {
    font-size: 0.82rem;
    color: var(--text-secondary);
    margin-top: 2px;
}

/* --- Panel --- */
.panel {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow-card);
    margin-bottom: 16px;
    transition: border-color var(--transition);
}

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

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}

.panel-title {
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-secondary);
}

.panel-actions {
    display: flex;
    gap: 6px;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 20px;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font-family);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    width: 100%;
    margin-top: 12px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), #16a34a);
    color: #fff;
    box-shadow: 0 2px 12px var(--primary-glow);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 20px var(--primary-glow);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xs);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition);
}

.btn-icon:hover:not(:disabled) {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-glow);
}

.btn-icon:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* --- Schema Editor --- */
.schema-editor {
    width: 100%;
    min-height: 220px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 14px;
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
    font-size: 0.82rem;
    color: var(--text-primary);
    resize: vertical;
    line-height: 1.6;
    tab-size: 2;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.schema-editor::placeholder {
    color: var(--text-placeholder);
}

.schema-editor:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--primary-glow);
    background: var(--bg-input-focus);
}

.schema-error {
    font-size: 0.78rem;
    color: var(--danger);
    margin-top: 8px;
    display: none;
}

.schema-error.visible {
    display: block;
}

/* --- Form Output Area --- */
.form-output {
    min-height: 120px;
}

.form-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 40px 20px;
    text-align: center;
    color: var(--text-muted);
}

.placeholder-icon {
    color: var(--text-placeholder);
}

.form-placeholder p {
    font-size: 0.85rem;
}

/* --- Generated Form Styles --- */
.generated-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.form-group label .required-star {
    color: var(--danger);
    font-weight: 700;
}

.form-group .field-desc {
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-bottom: 2px;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group input[type="email"],
.form-group input[type="url"],
.form-group input[type="date"],
.form-group input[type="datetime-local"],
.form-group input[type="password"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xs);
    color: var(--text-primary);
    font-family: var(--font-family);
    font-size: 0.85rem;
    transition: border-color var(--transition), box-shadow var(--transition);
}

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

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-placeholder);
}

.form-group input.invalid,
.form-group textarea.invalid,
.form-group select.invalid {
    border-color: var(--danger);
    box-shadow: 0 0 0 3px var(--danger-glow);
}

.form-group .error-msg {
    font-size: 0.72rem;
    color: var(--danger);
    display: none;
}

.form-group .error-msg.visible {
    display: block;
}

/* Checkbox & Toggle */
.checkbox-wrap {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 4px 0;
}

.checkbox-wrap input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
    cursor: pointer;
}

/* Nested object groups */
.nested-group {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 16px;
    margin-top: 4px;
    background: rgba(10, 26, 13, 0.5);
}

.nested-group .nested-title {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 12px;
}

/* Array controls */
.array-group {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 14px;
    margin-top: 4px;
    background: rgba(10, 26, 13, 0.4);
}

.array-items {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.array-item {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 10px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xs);
}

.array-item .item-content {
    flex: 1;
}

.array-item .remove-item-btn {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xs);
    color: var(--danger);
    cursor: pointer;
    flex-shrink: 0;
    font-size: 1rem;
    transition: all var(--transition);
}

.array-item .remove-item-btn:hover {
    background: var(--danger-glow);
    border-color: var(--danger);
}

.add-item-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    margin-top: 10px;
    background: transparent;
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-xs);
    color: var(--primary);
    font-family: var(--font-family);
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
}

.add-item-btn:hover {
    border-color: var(--primary);
    background: var(--primary-glow);
}

/* Submit row */
.form-submit-row {
    display: flex;
    gap: 10px;
    margin-top: 8px;
}

.submit-btn {
    flex: 1;
    padding: 11px 16px;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font-family);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
}

.submit-btn.primary {
    background: linear-gradient(135deg, var(--primary), #16a34a);
    color: #fff;
    box-shadow: 0 2px 12px var(--primary-glow);
}

.submit-btn.primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 20px var(--primary-glow);
}

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

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

/* --- Data Output --- */
.data-output {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 14px;
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 0.8rem;
    color: var(--secondary);
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-word;
    line-height: 1.6;
}

/* --- Toast --- */
.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(80px);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 10px 20px;
    font-size: 0.82rem;
    color: var(--text-primary);
    box-shadow: var(--shadow-card);
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
    pointer-events: none;
    z-index: 100;
}

.toast.visible {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* --- Animations --- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(12px);
    }

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

.panel {
    animation: fadeInUp 0.4s ease-out;
}

.schema-panel {
    animation-delay: 0s;
}

.form-panel {
    animation-delay: 0.08s;
}

.data-panel {
    animation-delay: 0.16s;
}

/* --- Responsive --- */
@media (max-width: 600px) {
    .app-container {
        padding: 16px 12px 32px;
    }

    .schema-editor {
        min-height: 160px;
    }

    .form-submit-row {
        flex-direction: column;
    }

    .header-title {
        font-size: 1.1rem;
    }
}