:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --success: #10b981;
    --success-hover: #059669;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --radius-md: 12px;
    --radius-sm: 8px;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

.app-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 40px 20px;
}

.app-header {
    text-align: left;
    margin-bottom: 30px;
}

.app-header h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: -0.02em;
    margin-bottom: 8px;
}

.app-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

.card {
    background: var(--card-bg);
    border-radius: var(--radius-md);
    padding: 30px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: box-shadow 0.3s ease;
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-main);
}

.meta-fields {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 25px;
}

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

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 8px;
}

input[type="text"],
textarea,
select {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
    color: var(--text-main);
    background-color: #fff;
    transition: all 0.2s ease;
}

input[type="text"]:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

textarea {
    resize: vertical;
    min-height: 150px;
    font-family: source-code-pro, Menlo, Monaco, Consolas, "Courier New", monospace;
    font-size: 0.85rem;
}

button {
    cursor: pointer;
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    border: none;
    font-size: 1rem;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

button:active {
    transform: translateY(1px);
}

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

.primary-btn:hover {
    background-color: var(--primary-hover);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

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

.success-btn:hover {
    background-color: var(--success-hover);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.2);
}

.secondary-btn {
    background-color: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border-color);
}

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

.danger-btn {
    background-color: #fef2f2;
    color: #ef4444;
    border: 1px solid #fca5a5;
}

.danger-btn:hover {
    background-color: #fee2e2;
    border-color: #ef4444;
}

.button-group {
    display: flex;
    gap: 12px;
}

.hidden {
    display: none !important;
}

/* Issues Section */
.issues-section {
    margin-top: 40px;
    animation: slideUp 0.4s ease-out forwards;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.section-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
}

.issues-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.issue-card {
    background: var(--card-bg);
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--primary);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.issue-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.issue-header {
    margin-bottom: 12px;
}

.ticket-badge {
    background-color: #eff6ff;
    color: var(--primary);
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 0.875rem;
    font-weight: 600;
    display: inline-block;
}

.issue-body {
    margin-bottom: 20px;
}

.issue-text {
    font-size: 0.95rem;
    color: var(--text-main);
    line-height: 1.6;
}

.issue-actions {
    background-color: #f8fafc;
    padding: 16px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.response-controls {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.canned-select {
    flex: 1;
}

.or-divider {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
}

.custom-input {
    flex: 2;
}

.save-checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    color: var(--text-muted);
    cursor: pointer;
}

.save-checkbox input {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

/* Output Section */
.output-section {
    animation: fadeIn 0.3s ease-out forwards;
}

.preview-area {
    background-color: #fff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 30px;
    min-height: 100px;
    max-height: 600px;
    overflow-y: auto;
}

/* History Section */
.history-section {
    margin-top: 40px;
    animation: fadeIn 0.4s ease-out forwards;
}

.history-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 20px;
}

.history-group {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.history-group-header {
    background-color: #f8fafc;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    user-select: none;
    transition: background-color 0.2s ease;
}

.history-group-header:hover {
    background-color: #f1f5f9;
}

.history-group-title {
    font-weight: 600;
    color: var(--primary);
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.history-group-badge {
    background-color: #e2e8f0;
    color: var(--text-muted);
    font-size: 0.8rem;
    padding: 2px 8px;
    border-radius: 999px;
}

.history-group-body {
    display: none;
    border-top: 1px solid var(--border-color);
    background-color: #fff;
}

.history-group.open .history-group-body {
    display: block;
    animation: fadeIn 0.3s ease-out;
}

.history-item {
    padding: 15px 20px;
    border-bottom: 1px solid var(--border-color);
}

.history-item:last-child {
    border-bottom: none;
}

.history-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 8px;
    display: flex;
    gap: 15px;
}

.history-response {
    display: inline-block;
    padding: 4px 8px;
    background-color: #e8f5e9;
    color: #2e7d32;
    border-radius: 4px;
    font-weight: bold;
    font-size: 0.85em;
    margin-top: 10px;
}

/* Animations */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

button.copied {
    background-color: var(--success);
    color: white;
}