/*
 * FILE: program-switch.css
 * PURPOSE: Program selection card components for program switch page
 *
 * KEY RESPONSIBILITIES:
 *  - Program selection card tiles with hero images
 *  - Role ribbon badges
 *  - Cohort selection within cards
 *  - Hover and focus states
 *  - Responsive grid layout
 *
 * DEPENDENCIES:
 *  - sparkus-2026.css (CSS variables)
 *
 * LAST UPDATED: December 18, 2025 by /go agent
 * CHANGE SUMMARY: Initial creation for program switch card tiles
 * 
 * NEXT AGENT: May need dark mode support
 */

/* ============================================
   PROGRAM SWITCH PAGE LAYOUT
   ============================================ */

.sp-program-switch {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--sp-space-8) var(--sp-space-4);
}

.sp-program-switch__header {
    text-align: center;
    margin-bottom: var(--sp-space-8);
}

.sp-program-switch__title {
    font-family: var(--sp-font-heading);
    font-size: 2rem;
    font-weight: var(--sp-font-weight-medium);
    color: var(--sp-text-dark);
    margin: 0 0 var(--sp-space-3);
}

.sp-program-switch__subtitle {
    font-size: 1rem;
    color: var(--sp-text-secondary);
    margin: 0;
}

/* ============================================
   PROGRAM CARDS GRID
   ============================================ */

.sp-program-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--sp-space-6);
}

@media (max-width: 768px) {
    .sp-program-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   PROGRAM CARD
   ============================================ */

.sp-program-card {
    position: relative;
    background: var(--sp-card-bg);
    border: 1px solid var(--sp-card-border);
    border-radius: var(--sp-radius-lg);
    box-shadow: var(--sp-shadow-card);
    overflow: hidden;
    transition: transform var(--sp-transition-fast), 
                box-shadow var(--sp-transition-fast);
}

.sp-program-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--sp-shadow-md);
}

.sp-program-card:focus-within {
    outline: 2px solid var(--sp-red);
    outline-offset: 2px;
}

/* Card Hero Image */
.sp-program-card__hero {
    position: relative;
    height: 160px;
    background: var(--sp-gradient-secondary);
    overflow: hidden;
}

.sp-program-card__hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.9;
}

.sp-program-card__hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent 40%, rgba(0,0,0,0.6) 100%);
}

/* Program Logo (positioned over hero) */
.sp-program-card__logo {
    position: absolute;
    bottom: var(--sp-space-4);
    left: var(--sp-space-4);
    width: 48px;
    height: 48px;
    background: var(--sp-white);
    border-radius: var(--sp-radius-md);
    padding: var(--sp-space-1);
    box-shadow: var(--sp-shadow-sm);
}

.sp-program-card__logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* Card Body */
.sp-program-card__body {
    padding: var(--sp-space-5);
}

.sp-program-card__name {
    font-family: var(--sp-font-heading);
    font-size: 1.25rem;
    font-weight: var(--sp-font-weight-medium);
    color: var(--sp-text-dark);
    margin: 0 0 var(--sp-space-2);
    line-height: 1.3;
}

.sp-program-card__description {
    font-size: 0.875rem;
    color: var(--sp-text-secondary);
    margin: 0 0 var(--sp-space-4);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ============================================
   ROLE RIBBON
   ============================================ */

.sp-role-ribbon {
    position: absolute;
    top: var(--sp-space-4);
    right: var(--sp-space-4);
    display: inline-flex;
    align-items: center;
    gap: var(--sp-space-2);
    padding: var(--sp-space-1) var(--sp-space-3);
    font-size: 0.75rem;
    font-weight: var(--sp-font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: var(--sp-radius-full);
    box-shadow: var(--sp-shadow-sm);
    z-index: 2;
}

.sp-role-ribbon--participant {
    background: var(--sp-white);
    color: var(--sp-text-secondary);
}

.sp-role-ribbon--coach,
.sp-role-ribbon--mentor {
    background: var(--sp-gradient-primary);
    color: var(--sp-white);
}

.sp-role-ribbon--manager {
    background: var(--sp-gradient-secondary);
    color: var(--sp-white);
}

.sp-role-ribbon--admin {
    background: linear-gradient(135deg, #7c3aed, #a855f7);
    color: var(--sp-white);
}

.sp-role-ribbon__icon {
    font-size: 0.875rem;
}

/* ============================================
   COHORT LIST
   ============================================ */

.sp-program-card__cohorts {
    border-top: 1px solid var(--sp-card-border);
    padding: 0;
    margin: 0;
    list-style: none;
}

.sp-cohort-item {
    display: block;
}

.sp-cohort-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--sp-space-4) var(--sp-space-5);
    color: var(--sp-text-primary);
    text-decoration: none;
    border-bottom: 1px solid var(--sp-card-border);
    transition: background var(--sp-transition-fast);
}

.sp-cohort-link:last-child {
    border-bottom: none;
}

.sp-cohort-link:hover {
    background: var(--sp-blue-50);
    color: var(--sp-text-primary);
}

.sp-cohort-link:focus-visible {
    outline: 2px solid var(--sp-red);
    outline-offset: -2px;
}

.sp-cohort-link__info {
    display: flex;
    flex-direction: column;
    gap: var(--sp-space-1);
}

.sp-cohort-link__name {
    font-size: 0.9375rem;
    font-weight: var(--sp-font-weight-medium);
    color: var(--sp-text-dark);
}

.sp-cohort-link__role {
    font-size: 0.75rem;
    color: var(--sp-text-muted);
}

.sp-cohort-link__arrow {
    color: var(--sp-text-muted);
    transition: transform var(--sp-transition-fast);
}

.sp-cohort-link:hover .sp-cohort-link__arrow {
    transform: translateX(4px);
    color: var(--sp-red);
}

/* ============================================
   SINGLE COHORT CARD (When program has only one cohort)
   ============================================ */

.sp-program-card--single-cohort .sp-program-card__body {
    padding-bottom: 0;
}

.sp-program-card--single-cohort .sp-program-card__cta {
    display: block;
    text-align: center;
    padding: var(--sp-space-4) var(--sp-space-5);
    background: var(--sp-blue-50);
    color: var(--sp-text-primary);
    font-weight: var(--sp-font-weight-medium);
    text-decoration: none;
    transition: background var(--sp-transition-fast);
    border-top: 1px solid var(--sp-card-border);
}

.sp-program-card--single-cohort .sp-program-card__cta:hover {
    background: var(--sp-blue-100);
}

/* ============================================
   EMPTY STATE
   ============================================ */

.sp-program-switch__empty {
    text-align: center;
    padding: var(--sp-space-10);
    background: var(--sp-card-bg);
    border: 1px dashed var(--sp-card-border);
    border-radius: var(--sp-radius-lg);
}

.sp-program-switch__empty-icon {
    font-size: 3rem;
    color: var(--sp-text-muted);
    margin-bottom: var(--sp-space-4);
}

.sp-program-switch__empty-title {
    font-family: var(--sp-font-heading);
    font-size: 1.25rem;
    color: var(--sp-text-dark);
    margin: 0 0 var(--sp-space-2);
}

.sp-program-switch__empty-text {
    font-size: 0.9375rem;
    color: var(--sp-text-secondary);
    margin: 0;
}

/* ============================================
   RESPONSIVE ADJUSTMENTS
   ============================================ */

@media (max-width: 480px) {
    .sp-program-switch {
        padding: var(--sp-space-5) var(--sp-space-3);
    }
    
    .sp-program-switch__title {
        font-size: 1.5rem;
    }
    
    .sp-program-card__hero {
        height: 140px;
    }
    
    .sp-role-ribbon {
        top: var(--sp-space-3);
        right: var(--sp-space-3);
    }
}