/* Marketing Email Campaign App - Stylesheet */

:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-bg: #f8f9fa;
    --border-color: #dee2e6;
    --text-color: #212529;
    --text-muted: #6c757d;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-color);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding-bottom: 60px;
}

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

/* Navbar */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 1rem 0;
    margin-bottom: 2rem;
    backdrop-filter: blur(10px);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: background-color 0.3s;
}

.nav-links a:hover {
    background-color: var(--light-bg);
}

/* Cards */
.card {
    background: white;
    border-radius: 12px;
    padding: 2.5rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

/* Progress Steps */
.progress-steps {
    display: flex;
    justify-content: space-between;
    margin-bottom: 2rem;
    position: relative;
    padding-bottom: 1rem;
}

.progress-steps::before {
    content: '';
    position: absolute;
    top: 15px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--border-color);
    z-index: 0;
}

.step {
    position: relative;
    z-index: 1;
    background: white;
    padding: 0.5rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
}

.step.active {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: #e7f0ff;
}

.step.completed {
    border-color: var(--success-color);
    color: var(--success-color);
    background: #e8f5e9;
}

/* Typography */
h2 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.subtitle {
    color: var(--text-muted);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

/* Upload Area */
.upload-area {
    border: 3px dashed var(--border-color);
    border-radius: 12px;
    padding: 3rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
    background: var(--light-bg);
}

.upload-area:hover, .upload-area.dragover {
    border-color: var(--primary-color);
    background: #e7f0ff;
}

.upload-icon {
    width: 80px;
    height: 80px;
    color: var(--primary-color);
    margin: 0 auto 1rem;
}

.upload-text {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.upload-area input[type="file"] {
    position: absolute;
    width: 0;
    height: 0;
    opacity: 0;
}

.file-info {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--light-bg);
    border-radius: 8px;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.form-group input[type="text"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-group input[type="text"]:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.help-text {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.help-text code {
    background: var(--light-bg);
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 0.85rem;
}

.checkbox-group {
    background: var(--light-bg);
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 600;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
}

/* Buttons */
.btn-primary, .btn-secondary, .btn-danger {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s;
    text-align: center;
}

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

.btn-primary:hover {
    background: #0056b3;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 123, 255, 0.3);
}

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

.btn-secondary:hover {
    background: #5a6268;
}

.btn-danger {
    display: inline-block;
    background: var(--danger-color);
    color: white;
}

.btn-danger:hover {
    background: #b02a37;
}

.btn-primary:disabled, .btn-secondary:disabled, .btn-danger:disabled {
    background: #9aa0a6;
    color: #f5f5f5;
    cursor: wait;
    opacity: 0.85;
    transform: none;
    box-shadow: none;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.button-group {
    display: flex;
    gap: 1rem;
    justify-content: space-between;
    margin-top: 2rem;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.stat-card {
    background: var(--light-bg);
    padding: 1.5rem;
    border-radius: 10px;
    text-align: center;
    border: 2px solid var(--border-color);
}

.stat-card.stat-success {
    background: #e8f5e9;
    border-color: var(--success-color);
}

.stat-card.stat-danger {
    background: #ffebee;
    border-color: var(--danger-color);
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-success .stat-value {
    color: var(--success-color);
}

.stat-danger .stat-value {
    color: var(--danger-color);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 600;
}

/* Alerts */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    position: relative;
}

.alert-success {
    background: #d4edda;
    border-left: 4px solid var(--success-color);
    color: #155724;
}

.alert-error {
    background: #f8d7da;
    border-left: 4px solid var(--danger-color);
    color: #721c24;
}

.alert-warning {
    background: #fff3cd;
    border-left: 4px solid var(--warning-color);
    color: #856404;
}

.alert-info {
    background: #d1ecf1;
    border-left: 4px solid var(--info-color);
    color: #0c5460;
}

.close-alert {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0.5;
}

.close-alert:hover {
    opacity: 1;
}

/* Info Box */
.info-box {
    background: #e7f0ff;
    border-left: 4px solid var(--primary-color);
    padding: 1.5rem;
    border-radius: 8px;
    margin-top: 2rem;
}

.info-box h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.info-box ul {
    list-style-position: inside;
    color: var(--text-color);
}

.info-box li {
    margin-bottom: 0.5rem;
}

/* Validation Status */
.validation-status {
    text-align: center;
    padding: 3rem 1rem;
}

.spinner {
    border: 4px solid var(--light-bg);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 60px;
    height: 60px;
    animation: spin 1s linear infinite;
    margin: 0 auto 1.5rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

#statusText {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.progress-bar {
    background: var(--light-bg);
    border-radius: 10px;
    height: 30px;
    overflow: hidden;
    margin: 1.5rem auto;
    max-width: 500px;
}

.progress-fill {
    background: linear-gradient(90deg, var(--primary-color), #667eea);
    height: 100%;
    width: 0;
    transition: width 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
}

#progressText {
    color: var(--text-muted);
    margin-top: 0.5rem;
}

/* Preview */
.preview-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.tab-button {
    padding: 0.75rem 1.5rem;
    border: none;
    background: var(--light-bg);
    cursor: pointer;
    border-radius: 6px 6px 0 0;
    font-weight: 600;
    transition: all 0.3s;
}

.tab-button.active {
    background: var(--primary-color);
    color: white;
}

.preview-tab {
    display: none;
}

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

.email-preview {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

.email-header {
    background: var(--light-bg);
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.email-header p {
    margin-bottom: 0.5rem;
}

.email-body {
    padding: 1.5rem;
    background: white;
}

.text-preview pre {
    white-space: pre-wrap;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
}

/* Errors Section */
.errors-section {
    margin-top: 2rem;
    background: #fff3cd;
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid var(--warning-color);
}

.error-list {
    margin-top: 1rem;
}

.error-item {
    padding: 0.5rem;
    background: white;
    margin-bottom: 0.5rem;
    border-radius: 4px;
    font-size: 0.9rem;
}

/* Footer */
footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    padding: 1rem 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    backdrop-filter: blur(10px);
}

/* Responsive */
@media (max-width: 768px) {
    .progress-steps {
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    .step {
        font-size: 0.75rem;
        padding: 0.4rem 0.8rem;
    }
    
    .button-group {
        flex-direction: column;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .card {
        padding: 1.5rem;
    }
}

/* Email Review Page */
.review-section {
    margin: 2rem 0;
    background: var(--light-bg);
    padding: 1.5rem;
    border-radius: 10px;
}

.review-section h3 {
    margin-bottom: 0.5rem;
    color: var(--danger-color);
}

.email-list {
    margin: 1.5rem 0;
    max-height: 600px;
    overflow-y: auto;
}

.email-item {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 0.75rem;
    display: flex;
    gap: 1rem;
    transition: background-color 0.2s;
}

.email-item:hover {
    background: #f0f8ff;
}

.email-checkbox {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
    flex-shrink: 0;
}

.email-checkbox input[type="checkbox"] {
    margin-top: 0.25rem;
    cursor: pointer;
}

.email-address {
    font-weight: 600;
    cursor: pointer;
    user-select: none;
}

.email-details {
    flex: 1;
    min-width: 0;
}

.reasons {
    margin: 0.25rem 0;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.suggestion {
    margin: 0.25rem 0;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.suggestion code {
    background: white;
    padding: 2px 6px;
    border-radius: 3px;
    color: var(--primary-color);
    font-weight: 600;
}

.bulk-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1rem;
}

.bulk-actions button {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}
/* Isolate user-authored email HTML from the application origin. */
.template-preview {
    width: 100%;
    min-height: 620px;
    border: 1px solid #dfe5e9;
    border-radius: 8px;
    background: #fff;
}

.nav-form { display: inline; margin: 0; }
.nav-user { font-size: 0.82rem; opacity: 0.85; }
.auth-card { max-width: 560px; margin: 4rem auto; text-align: center; }
.workflow-panel { border-top: 1px solid #dfe5e9; padding: 1.25rem 0; }
.workflow-panel label { display: block; margin-top: .75rem; font-weight: 600; }
.workflow-panel input, .workflow-panel select, .workflow-panel textarea { width: 100%; margin: .35rem 0 .75rem; }
.recipient-list { max-height: 420px; overflow: auto; margin: 1rem 0; }
.recipient-row, .admin-row { display: flex; align-items: center; gap: .75rem; padding: .55rem; border-bottom: 1px solid #e7ecef; }
.recipient-row input { width: auto; margin: 0; }
.recipient-row span, .admin-row span { flex: 1; }
.audit-row { padding: .45rem 0; border-bottom: 1px solid #e7ecef; font-size: .9rem; }