/**
 * Milestone Components
 * 
 * Milestone accordion for job progress tracking.
 * Read-only customer view with completion states and progress bars.
 * 
 * @package Silva_Customer_Portal
 * @version 2.6.0
 */

/* ========================================
   MILESTONE ACCORDION
   ======================================== */

.milestone-accordion {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    overflow: hidden;
}

.milestone-item {
    border-bottom: 1px solid var(--border-color);
    transition: background-color var(--transition-speed);
}

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

.milestone-item.completed {
    background: var(--bg-subtle);
}

/* ========================================
   MILESTONE HEADER
   ======================================== */

.milestone-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    cursor: pointer;
    user-select: none;
    min-height: var(--touch-target-min);
    transition: background-color var(--transition-speed);
}

.milestone-header:hover {
    background: var(--bg-subtle);
}

.milestone-header:focus-visible {
    outline: var(--focus-outline);
    outline-offset: -2px;
}

/* ========================================
   MILESTONE HEADER ELEMENTS
   ======================================== */

.milestone-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}

.milestone-icon.completed {
    color: var(--success-green);
}

.milestone-icon.pending {
    color: var(--text-tertiary);
}

.milestone-content {
    flex: 1;
    min-width: 0;
}

.milestone-title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
    margin: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.milestone-item.completed .milestone-title {
    color: var(--text-secondary);
    text-decoration: line-through;
}

.milestone-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xs);
}

.milestone-percentage {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--primary-blue);
    background: rgba(1, 67, 133, 0.1);
    padding: 2px 8px;
    border-radius: var(--pill-radius);
}

.milestone-category {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
}

.milestone-chevron {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    color: var(--text-tertiary);
    transition: transform var(--transition-speed);
}

.milestone-item.expanded .milestone-chevron {
    transform: rotate(180deg);
}

/* ========================================
   MILESTONE BODY
   ======================================== */

.milestone-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.milestone-body-content {
    padding: 0 var(--spacing-lg) var(--spacing-lg) var(--spacing-lg);
    padding-left: calc(var(--spacing-lg) + 24px + var(--spacing-md));
}

.milestone-description {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
    white-space: pre-wrap;
}

.milestone-completed-at {
    font-size: var(--font-size-xs);
    color: var(--success-green);
    margin-top: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

/* ========================================
   MILESTONE SECTIONS
   ======================================== */

.milestone-section-header {
    background: var(--bg-subtle);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ========================================
   MILESTONE PROGRESS SUMMARY
   ======================================== */

.milestone-progress-summary {
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-blue) 0%, #0369a1 100%);
    color: white;
    border-radius: var(--card-radius) var(--card-radius) 0 0;
}

.milestone-progress-text {
    font-size: var(--font-size-sm);
    margin: 0 0 var(--spacing-sm) 0;
    opacity: 0.9;
}

.milestone-progress-number {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin: 0;
}

.milestone-progress-bar {
    width: 100%;
    height: 12px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    overflow: hidden;
    margin-top: var(--spacing-md);
}

.milestone-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #10b981 0%, #059669 100%);
    border-radius: 12px;
    transition: width 0.5s ease-out;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

@media (max-width: 768px) {
    .milestone-header {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .milestone-body-content {
        padding: 0 var(--spacing-md) var(--spacing-md) var(--spacing-md);
        padding-left: calc(var(--spacing-md) + 24px + var(--spacing-sm));
    }
    
    .milestone-title {
        font-size: var(--font-size-sm);
    }
}