/**
 * UNIFIED MODAL STYLES
 * Replaces: premium-modal inline styles, content-modal.css, course-detail-modal.css
 */

/* Modal overlay */
.um {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: 99999;
    display: none;
    opacity: 0;
    transition: opacity var(--transition-normal);
}
.um.um-open {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
}

/* Backdrop */
.um-backdrop {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.88);
    backdrop-filter: blur(8px);
    z-index: 1;
}

/* Container */
.um-container {
    position: relative;
    z-index: 2;
    background: linear-gradient(135deg, rgba(13, 27, 26, 0.98), rgba(0, 87, 75, 0.95));
    border-radius: var(--radius-2xl);
    max-width: 900px;
    width: 92%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(163, 209, 200, 0.2);
    animation: umSlideIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes umSlideIn {
    from { opacity: 0; transform: translateY(50px) scale(0.9); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

/* Close button */
.um-close {
    position: absolute;
    top: 16px; right: 16px;
    width: 44px; height: 44px;
    border-radius: 50%;
    background: rgba(163, 209, 200, 0.2);
    border: 2px solid rgba(163, 209, 200, 0.4);
    color: var(--color-emerald-light);
    font-size: 20px;
    cursor: pointer;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
}
.um-close:hover {
    background: rgba(163, 209, 200, 0.3);
    border-color: var(--color-emerald-light);
    transform: rotate(90deg);
}

/* Header */
.um-header {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
}
.um-image {
    width: 100%;
    height: 350px;
    object-fit: cover;
    display: block;
    background: rgba(0, 0, 0, 0.3);
}
.um-header-overlay {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    padding: 32px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.95), transparent);
}

/* Location badge */
.um-location {
    display: none;
    padding: 6px 16px;
    background: rgba(163, 209, 200, 0.25);
    border: 1px solid rgba(163, 209, 200, 0.5);
    border-radius: 20px;
    color: var(--color-emerald-light);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.um-location i {
    margin-right: 4px;
}

/* Title */
.um-title {
    font-family: 'Playfair Display', serif;
    font-size: 30px;
    font-weight: 700;
    color: #faf5ee;
    margin: 0;
    line-height: 1.2;
}

/* Features */
.um-features {
    display: none;
    color: var(--color-emerald-light);
    font-size: 1rem;
    font-weight: 600;
    margin-top: 8px;
    align-items: center;
    gap: 8px;
}
.um-features i {
    color: var(--color-emerald-light);
}

/* Body */
.um-body {
    padding: 32px;
}

/* Description */
.um-description {
    margin-bottom: 28px;
}
.um-description p {
    color: #faf5ee;
    font-size: 16px;
    line-height: 1.8;
    margin: 0 0 1rem 0;
}
.um-description p:last-child {
    margin-bottom: 0;
}
.um-description strong {
    color: var(--color-emerald-light);
    font-weight: 700;
}

/* Short description (enriched mode) */
.um-short {
    color: rgba(252, 252, 252, 0.9);
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 20px;
}
.um-short strong {
    color: var(--color-emerald-light);
    font-weight: 700;
}

/* Detailed description (enriched mode) */
.um-detailed {
    color: rgba(252, 252, 252, 0.85);
    font-size: 1.05rem;
    line-height: 1.8;
    border-top: 1px solid rgba(163, 209, 200, 0.2);
    padding-top: 20px;
    text-align: left;
}
.um-detailed strong {
    color: var(--color-emerald-light);
    font-weight: 700;
}

/* Highlights */
.um-highlights {
    display: none;
    background: rgba(163, 209, 200, 0.08);
    border-left: 4px solid var(--color-emerald-light);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 28px;
}
.um-highlights h4 {
    font-family: 'Playfair Display', serif;
    font-size: 20px;
    font-weight: 700;
    color: var(--color-emerald-light);
    margin: 0 0 16px 0;
    display: flex;
    align-items: center;
    gap: 10px;
}
.um-highlights h4 i {
    font-size: 18px;
}
.um-highlights ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.um-highlights li {
    color: rgba(252, 252, 252, 0.9);
    font-size: 16px;
    line-height: 1.6;
    padding: 8px 0 8px 28px;
    position: relative;
}
.um-highlights li::before {
    content: '\2713';
    position: absolute;
    left: 0;
    color: var(--color-emerald-light);
    font-weight: 700;
    font-size: 18px;
}
.um-highlights li strong {
    color: var(--color-emerald-light);
    font-weight: 700;
}

/* Info card (detail mode) */
.um-info-card {
    display: none;
    background: rgba(163, 209, 200, 0.08);
    border-left: 4px solid var(--color-emerald-light);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 28px;
}
.um-info-card h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-emerald-light);
    margin: 0 0 16px 0;
}
.um-info-card h4 i {
    margin-right: 8px;
}
.um-info-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.um-info-card li {
    display: flex;
    justify-content: space-between;
    padding: 0.6rem 0;
    border-bottom: 1px solid rgba(163, 209, 200, 0.15);
    color: #faf5ee;
    font-size: 15px;
}
.um-info-card li:last-child {
    border-bottom: none;
}
.um-info-card li span {
    color: rgba(250, 245, 238, 0.7);
}
.um-info-card li span i {
    width: 20px;
    color: var(--color-emerald-light);
    margin-right: 6px;
}
.um-info-card li strong {
    color: #faf5ee;
}
.um-info-card li a {
    color: var(--color-emerald-light);
    text-decoration: underline;
    font-weight: 600;
}

/* Gallery (detail mode) */
.um-gallery {
    display: none;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
}
.um-gallery img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    transition: transform var(--transition-normal);
}
.um-gallery img:hover {
    transform: scale(1.03);
}

/* Expand button (enriched mode) */
.um-expand-wrap {
    text-align: center;
    margin-top: 20px;
}
.um-expand-btn {
    background: linear-gradient(135deg, var(--color-emerald), var(--color-emerald-light));
    color: var(--color-white);
    border: none;
    padding: 15px 30px;
    border-radius: var(--radius-lg);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    min-width: 180px;
    min-height: 50px;
    box-shadow: 0 6px 20px rgba(0, 87, 75, 0.4);
}
.um-expand-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 87, 75, 0.5);
}

/* Expand Buttons on Cards (shared with content-modal.css) */
.course-expand-btn,
.service-expand-btn,
.content-expand-btn {
    position: absolute;
    bottom: 16px;
    right: 16px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(163, 209, 200, 0.25);
    border: 2px solid rgba(163, 209, 200, 0.5);
    color: var(--color-emerald-light);
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
    z-index: 5;
    opacity: 0;
    visibility: hidden;
}
.course-card:hover .course-expand-btn,
.service-card:hover .service-expand-btn,
.intro-image-container:hover .content-expand-btn,
.relative:hover .content-expand-btn {
    opacity: 1;
    visibility: visible;
}
.course-expand-btn:hover,
.service-expand-btn:hover,
.content-expand-btn:hover {
    background: rgba(163, 209, 200, 0.4);
    border-color: var(--color-emerald-light);
    transform: scale(1.1);
}

/* Card positioning & hover */
.course-card { position: relative; }
.service-card { position: relative; }
.course-image-container { position: relative; }
.service-image-container { position: relative; }

.course-card img,
.service-card img {
    cursor: pointer;
    transition: transform var(--transition-normal), filter var(--transition-normal);
}
.course-card img:hover,
.service-card img:hover {
    filter: brightness(1.1);
}

.course-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    padding: 16px;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.3), transparent);
    pointer-events: none;
}
.course-overlay > * {
    pointer-events: auto;
}

/* Scrollbar */
.um-container::-webkit-scrollbar { width: 8px; }
.um-container::-webkit-scrollbar-track { background: rgba(0, 0, 0, 0.2); border-radius: 0 var(--radius-2xl) var(--radius-2xl) 0; }
.um-container::-webkit-scrollbar-thumb { background: var(--color-emerald-light); border-radius: var(--radius-sm); }
.um-container::-webkit-scrollbar-thumb:hover { background: var(--color-emerald); }

/* Responsive */
@media (max-width: 768px) {
    .um-container { width: 96%; max-height: 95vh; border-radius: var(--radius-xl); }
    .um-image { height: 220px; }
    .um-header-overlay { padding: 20px; }
    .um-title { font-size: 22px; }
    .um-body { padding: 20px; }
    .um-description p { font-size: 14px; }
    .um-highlights { padding: 16px; }
    .um-highlights h4 { font-size: 18px; }
    .um-highlights li { font-size: 14px; }
    .um-info-card { padding: 16px; }
    .um-gallery img { height: 120px; }
    .um-short { font-size: 0.95rem; }
    .um-detailed { font-size: 0.95rem; }
}