/* Microsoft Blue Theme - jwt.ms Inspired */
:root {
    --bg-primary: #f5f5f5;
    --bg-secondary: #ffffff;
    --border-color: #ddd;
    --text-primary: #333333;
    --text-secondary: #767676;
    --accent-color: #0078d4;
    --header-bg: #0078d4;
    --success-bg: #dff6dd;
    --success-text: #107c10;
    --warning-bg: #fff4ce;
    --warning-text: #8a6d3b;
    --error-bg: #f1aeb5;
    --error-text: #842029;
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #1e1e1e;
        --bg-secondary: #2d2d2d;
        --border-color: #404040;
        --text-primary: #e0e0e0;
        --text-secondary: #999999;
        --accent-color: #4da6ff;
        --header-bg: #106ebe;
        --success-bg: #1a3d1a;
        --success-text: #81c784;
    }
}

/* Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    border-radius: 0 !important;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
}

/* Header */
.header {
    background: var(--header-bg);
    color: white;
    padding: 20px 32px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.header h1 {
    font-size: 24px;
    font-weight: 600;
    margin: 0;
}

.header .tagline {
    font-size: 12px;
    opacity: 0.9;
    margin: 4px 0 0 0;
    font-weight: 400;
}

/* Main Container - Vertical Layout */
.main-container {
    max-width: 100%;
    margin: 0;
}

/* Sections */
.input-section,
.output-section {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 32px;
    margin: 0;
}

.section-description {
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 14px;
}

/* Input Header - Tabs and Controls Row */
.input-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 24px;
}

/* Tabs */
.tabs {
    display: flex;
    gap: 0;
}

.tab-button {
    background: none;
    border: none;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all 0.2s;
}

.tab-button:hover {
    color: var(--accent-color);
}

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

/* Inline Controls */
.inline-controls {
    display: flex;
    gap: 20px;
    align-items: center;
    padding-right: 4px;
    padding-bottom: 3px;
    flex-shrink: 0;
}

.inline-control {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.inline-control label {
    font-size: 14px;
    color: var(--text-secondary);
    white-space: nowrap;
    font-weight: 500;
}

.inline-select {
    padding: 6px 12px;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
    min-width: 140px;
    border-radius: 0;
}

.inline-select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(0, 120, 212, 0.1);
}

/* Checkbox Control */
.checkbox-control label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    user-select: none;
}

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

.checkbox-control span {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Responsive: Stack on small screens */
@media (max-width: 768px) {
    .input-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .inline-controls {
        margin-top: 16px;
        padding-bottom: 0;
    }
}

/* Tab Content */
.tab-content {
    display: none;
}

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

/* Form Elements */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.fidelity-select {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
}

.fidelity-select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(0, 120, 212, 0.1);
}

.text-input {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    resize: vertical;
}

.text-input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(0, 120, 212, 0.1);
}

.text-input::placeholder {
    color: var(--text-secondary);
    opacity: 0.6;
}

/* File Input */
.file-label {
    display: block;
    padding: 12px;
    border: 2px dashed var(--border-color);
    background: var(--bg-secondary);
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

.file-label:hover {
    border-color: var(--accent-color);
    background: var(--bg-primary);
}

.file-input {
    display: none;
}

#file-name {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Buttons */
.primary-button {
    background: var(--accent-color);
    color: white;
    border: none;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.primary-button:hover:not(:disabled) {
    background: #005a9e;
    transform: translateY(-1px);
}

.primary-button:active:not(:disabled) {
    transform: translateY(0);
}

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

.secondary-button {
    background: white;
    color: var(--accent-color);
    border: 1px solid var(--accent-color);
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    margin-top: 16px;
}

.secondary-button:hover {
    background: var(--accent-color);
    color: white;
}

.download-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

/* Output Section */
.output-placeholder {
    padding: 60px 20px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
}

.output-container {
    min-height: 400px;
}

.status-message {
    padding: 12px 16px;
    margin-bottom: 16px;
    font-size: 13px;
    border-left: 3px solid;
}

.status-message.success {
    background: var(--success-bg);
    color: var(--success-text);
    border-color: var(--success-text);
}

.status-message.warning {
    background: var(--warning-bg);
    color: var(--warning-text);
    border-color: var(--warning-text);
}

.status-message.error {
    background: var(--error-bg);
    color: var(--error-text);
    border-color: var(--error-text);
}

/* Output Tabs */
.output-tabs {
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 24px;
}

.output-tab-button {
    background: none;
    border: none;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all 0.2s;
}

.output-tab-button:hover {
    color: var(--accent-color);
}

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

.output-tab-content {
    display: none;
}

.output-tab-content.active {
    display: block;
}

/* Mermaid Diagram */
.mermaid-container {
    min-height: 400px;
    padding: 20px;
    overflow: auto;
}

/* Code Block */
.code-block {
    background: #f6f8fa;
    border: 1px solid var(--border-color);
    padding: 0;
    margin: 0;
    overflow: auto;
    font-family: 'Courier New', monospace;
    font-size: 13px;
    line-height: 1.6;
}

.code-block code {
    display: block;
    padding: 16px;
    white-space: pre;
    overflow-x: auto;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loader {
    background: white;
    padding: 40px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.loading-text {
    margin-top: 20px;
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 600;
}

/* Loader Animation */
.loader-animation {
    display: flex;
    align-items: center;
    gap: 20px;
}

.participant {
    width: 60px;
    height: 80px;
    background: var(--accent-color);
    animation: pulse 1.5s ease-in-out infinite;
}

.participant-2 {
    animation-delay: 0.3s;
}

.participant-3 {
    animation-delay: 0.6s;
}

.arrow {
    width: 40px;
    height: 3px;
    background: var(--accent-color);
    position: relative;
    animation: flow 1.5s ease-in-out infinite;
}

.arrow::after {
    content: '';
    position: absolute;
    right: 0;
    top: -4px;
    width: 0;
    height: 0;
    border-left: 8px solid var(--accent-color);
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;
}

.arrow-2 {
    animation-delay: 0.3s;
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.6;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.05);
    }
}

@keyframes flow {
    0%, 100% {
        opacity: 0.3;
    }
    50% {
        opacity: 1;
    }
}