:root {
    --bg-primary: #f8fafc;
    --bg-panel: #ffffff;
    --border-color: #e2e8f0;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;

    --sev1: #ef4444;
    --sev2: #f97316;
    --sev3: #eab308;
    --sev4: #3b82f6;
    --sev5: #94a3b8;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-main);
    line-height: 1.5;
}

/* Layout */
.app-container {
    max-width: 100vw;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    background: var(--bg-panel);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 10;
}

.header-left h1 {
    font-size: 1.25rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.header-right {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-weight: 500;
    font-size: 0.875rem;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.2s;
}

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

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

.btn-outline {
    background: transparent;
    border-color: var(--border-color);
    color: var(--text-main);
}

.btn-outline:hover {
    background: #f1f5f9;
}

/* Tabs */
.tabs {
    display: flex;
    background: var(--bg-panel);
    border-bottom: 1px solid var(--border-color);
    padding: 0 2rem;
}

.tab {
    padding: 1rem;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    color: var(--text-muted);
    font-weight: 500;
}

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

/* Main Content */
.main-content {
    flex: 1;
    padding: 2rem;
    max-width: 1000px;
    margin: 0 auto;
    width: 100%;
}

.view-section {
    display: none;
}

.view-section.active {
    display: block;
}

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

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-family: inherit;
    font-size: 0.875rem;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

.form-row {
    display: flex;
    gap: 1rem;
}

.form-col {
    flex: 1;
}

.panel {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.panel h2 {
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

/* Dynamic Lists (Timeline, Action Items) */
.list-item {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    align-items: flex-start;
}

.list-item .form-control {
    padding: 0.5rem;
}

.btn-remove {
    background: transparent;
    border: none;
    color: var(--sev1);
    cursor: pointer;
    padding: 0.5rem;
    font-weight: bold;
}

.btn-remove:hover {
    background: #fee2e2;
    border-radius: 4px;
}

.btn-add {
    font-size: 0.875rem;
    color: var(--primary-color);
    background: transparent;
    border: 1px dashed var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    width: 100%;
    text-align: center;
    margin-top: 0.5rem;
}

.btn-add:hover {
    background: #eff6ff;
}

/* Blameless Warning */
.blameless-warning {
    margin-top: 0.5rem;
    font-size: 0.8rem;
    color: var(--sev2);
    display: none;
    background: #fff7ed;
    padding: 0.5rem;
    border-radius: 4px;
    border-left: 3px solid var(--sev2);
}

.blameless-warning.visible {
    display: block;
}

/* Preview Styles */
#preview-content {
    background: white;
    padding: 3rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    min-height: 800px;
}

#preview-content h1,
#preview-content h2,
#preview-content h3 {
    margin-top: 1.5em;
    margin-bottom: 0.5em;
}

#preview-content p,
#preview-content li {
    margin-bottom: 0.5em;
}

#preview-content pre {
    background: #f1f5f9;
    padding: 1rem;
    border-radius: 4px;
    overflow-x: auto;
}

/* Print Styles */
@media print {
    body {
        background: white;
    }

    header,
    .tabs,
    .app-sidebar,
    .btn {
        display: none !important;
    }

    .main-content {
        padding: 0;
        margin: 0;
        max-width: none;
    }

    #preview-content {
        box-shadow: none;
        padding: 0;
    }
}