/**
 * ============================================================================
 * MODULE: LAYOUT
 * VERSION: 1.2.0
 * LAST UPDATED: 2025-12-17
 * ============================================================================
 *
 * PURPOSE:
 * Defines page structure, grid system, and layout components
 *
 * CHANGELOG:
 * v1.2.0 (2025-12-17) - Navigation Dropdown Menus
 *   - Added .nav-dropdown for dropdown menu containers
 *   - Added .nav-dropdown-toggle for dropdown toggle buttons
 *   - Added .nav-dropdown-menu for dropdown content
 *   - Added .nav-dropdown-item for dropdown menu items
 *   - Added open state styling with smooth transitions
 * v1.1.0 (2025-12-17) - Compact Grid Layout for 12" Screens
 *   - Added .plan-settings-grid for 2-column card layout
 *   - Added .compact-card styles for reduced padding
 *   - Added .compact-info for smaller info boxes
 *   - Optimized Plan Settings section to fit 12" MacBook without scrolling
 *   - Responsive design: stacks to 1 column on tablets/mobile
 * v1.0.0 (2025-12-15) - Initial version
 *   - App container layout
 *   - Sidebar navigation
 *   - Main content area
 *   - Grid system
 * ============================================================================
 */

/* App Container */
.app-container {
    display: grid;
    grid-template-columns: 210px 1fr;
    grid-template-rows: auto 1fr;
    grid-template-areas:
        "header header"
        "sidebar main";
    height: 100vh;
    max-width: 1600px;
    margin: 0 auto;
    background-color: #F7F5F1;
    box-shadow: var(--shadow-lg);
}

/* ── Header ── */
.app-header {
    grid-area: header;
    background: #FFFFFF;
    border-bottom: 1px solid #E4DDD4;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 44px;
    position: sticky;
    top: 0;
    z-index: 100;
}

.rp-logo {
    font-family: 'Lora', Georgia, serif;
    font-size: 15px;
    font-weight: 600;
    color: #3D6B5A;
    letter-spacing: 0;
}

.rp-logo span {
    color: #6B7B79;
    font-weight: 400;
}

.rp-badge {
    font-family: 'DM Sans', system-ui, sans-serif;
    font-size: 10px;
    font-weight: 500;
    padding: 2px 8px;
    border-radius: 20px;
    background: #EAF2EF;
    color: #3D6B5A;
    letter-spacing: 0.2px;
}

.rp-rev {
    font-family: 'DM Sans', system-ui, sans-serif;
    font-size: 10px;
    font-weight: 400;
    color: #9AADA9;
    letter-spacing: 0.2px;
}

/* ── Sidebar ── */
.sidebar {
    grid-area: sidebar;
    background-color: #F7F5F1;
    border-right: 1px solid #E4DDD4;
    padding: 16px 10px;
    overflow-y: auto;
    min-height: 0;
    height: 100%;
}

.nav-section {
    margin-bottom: 0;
}

.nav-section-label {
    font-family: 'DM Sans', system-ui, sans-serif;
    font-size: 9px;
    font-weight: 500;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    color: #9BACA9;
    padding: 0 8px;
    margin-bottom: 4px;
    margin-top: 14px;
}

.nav-section-label:first-child {
    margin-top: 0;
}

.nav-divider {
    height: 1px;
    background: #E4DDD4;
    margin: 8px 0;
}

/* ── Nav items ── */
.nav-button {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 6px 8px;
    border-radius: 5px;
    background: none;
    border: none;
    font-family: 'DM Sans', system-ui, sans-serif;
    font-size: 11px;
    font-weight: 400;
    color: #6B7B79;
    text-align: left;
    cursor: pointer;
    transition: background 0.12s, color 0.12s;
    margin-bottom: 1px;
    white-space: nowrap;
}

.nav-button:hover {
    background: #E4DDD4;
    color: #1E2B2A;
}

.nav-button.active {
    background: #EAF2EF;
    color: #3D6B5A;
    font-weight: 500;
}

.nav-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #E4DDD4;
    flex-shrink: 0;
}

.nav-button.active .nav-dot {
    background: #5C8B7A;
    box-shadow: 0 0 0 2px #EAF2EF;
}

/* ── Navigation Dropdown ── */
.nav-dropdown {
    position: relative;
}

.nav-dropdown-toggle {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-dropdown-toggle::after {
    content: '›';
    font-size: 13px;
    color: #B4B2A9;
    transition: transform 0.12s;
    margin-left: auto;
    padding-left: 4px;
}

.nav-dropdown.open .nav-dropdown-toggle::after {
    transform: rotate(90deg);
}

.nav-dropdown-menu {
    display: none;
    padding-left: 20px;
    margin-top: 1px;
}

.nav-dropdown.open .nav-dropdown-menu {
    display: block;
}

.nav-dropdown-item {
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    font-family: 'DM Sans', system-ui, sans-serif;
    font-size: 11px;
    font-weight: 400;
    color: #6B7B79;
    padding: 5px 8px;
    border-radius: 5px;
    margin-bottom: 1px;
    cursor: pointer;
    transition: background 0.12s, color 0.12s;
    display: block;
}

.nav-dropdown-item:hover {
    background: #E4DDD4;
    color: #1E2B2A;
}

.nav-dropdown-item.active {
    background: #EAF2EF;
    color: #3D6B5A;
    font-weight: 500;
}

/* ── Main Content ── */
.main-content {
    grid-area: main;
    padding: 20px;
    overflow-y: auto;
    overflow-x: hidden;
    background-color: #F7F5F1;
    min-height: 0;
    height: 100%;
}

/* Content Sections */
.content-section {
    display: none;
    animation: fadeIn var(--transition-base);
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Form Grid */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

/* Chart Wrappers */
.chart-wrapper {
    background-color: var(--color-bg-main);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
}

.chart-wrapper h3 {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--color-border);
}

#chartsContainer {
    display: grid;
    gap: var(--spacing-xl);
}

/* Scenario Controls */
.scenario-controls {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

/* Results Display */
#projectionResults {
    background-color: var(--color-bg-main);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
}

.info-message {
    padding: var(--spacing-lg);
    background-color: var(--color-bg-secondary);
    border-left: 4px solid var(--color-info);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    margin: 0;
}

/* Partner-specific fields */
.partner-field {
    display: none;
}

.partner-field.visible {
    display: flex;
}

/* ============================================================================
   PLAN SETTINGS COMPACT GRID LAYOUT
   Optimized for 12" MacBook screen (fits without scrolling)
   ============================================================================ */

.plan-settings-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0 var(--spacing-lg); /* Horizontal gap only */
    max-width: 100%;
    align-items: start; /* Align tops of columns */
}

.plan-settings-col {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg); /* Consistent vertical spacing between cards */
}

/* Compact cards - reduced padding and spacing */
.compact-card {
    padding: var(--spacing-md);
    margin-bottom: 0; /* Remove default card margin - use flexbox gap instead */
    box-sizing: border-box; /* Include padding in width calculation */
}

.compact-card .card-header {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
}

.compact-card .form-group {
    margin-bottom: var(--spacing-sm);
}

.compact-card .form-group label {
    font-size: var(--font-size-sm);
    margin-bottom: calc(var(--spacing-xs) / 2);
}

.compact-card .form-group small {
    font-size: var(--font-size-xs);
    margin-top: calc(var(--spacing-xs) / 2);
}

/* Compact info boxes - reduced padding and font size */
.compact-info {
    padding: var(--spacing-sm);
    margin: var(--spacing-sm) 0;
}

.compact-info .info-box-icon {
    font-size: var(--font-size-lg);
}

.compact-info .info-box-content p {
    font-size: var(--font-size-xs);
    line-height: 1.4;
}

/* Compact radio options */
.compact-card .radio-option {
    padding: var(--spacing-sm);
}

.compact-card .radio-label {
    font-size: var(--font-size-sm);
}

/* Specific card height alignment for row alignment */
.plan-type-card,
.dynamic-spending-card {
    min-height: 140px; /* Ensure first row cards have matching height */
}

/* Compact section title for Plan Settings */
#section-current-situation h2 {
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-2xl);
}

#section-current-situation .section-subtitle {
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
}

/* Responsive: Stack on smaller screens */
@media (max-width: 1024px) {
    .plan-settings-grid {
        grid-template-columns: 1fr;
    }
}