/* =============================
   Memory Lane Feature
   Instagram-style story viewer for items
   ============================= */

.memory-lane-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    z-index: 1000;
    display: none;
    flex-direction: column;
    overflow: hidden;
}

.memory-lane-container.active {
    display: flex;
}

/* Progress bars at the top */
.memory-lane-progress {
    display: flex;
    gap: 4px;
    padding: 12px 16px;
    padding-top: calc(env(safe-area-inset-top, 0px) + 12px);
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.5), transparent);
    position: relative;
    z-index: 10;
}

.memory-lane-progress-bar {
    flex: 1;
    height: 3px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 2px;
    overflow: hidden;
    position: relative;
}

.memory-lane-progress-fill {
    height: 100%;
    background: white;
    width: 0%;
    border-radius: 2px;
    transition: width 100ms linear;
}

.memory-lane-progress-bar.completed .memory-lane-progress-fill {
    width: 100%;
}

.memory-lane-progress-bar.active .memory-lane-progress-fill {
    animation: progressAnimation 5s linear forwards;
}

@keyframes progressAnimation {
    from { width: 0%; }
    to { width: 100%; }
}

/* Content area */
.memory-lane-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 20px;
    position: relative;
    overflow: hidden;
}

.memory-lane-item {
    display: none;
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-width: 500px;
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.3s var(--ease-out), transform 0.3s var(--ease-out);
}

.memory-lane-item.active {
    display: flex;
    opacity: 1;
    transform: scale(1);
}

/* Item header - name and rating */
.memory-lane-header {
    width: 100%;
    text-align: center;
    margin-bottom: 20px;
}

.memory-lane-item-name {
    font-size: 28px;
    font-weight: 700;
    color: white;
    margin-bottom: 12px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
    line-height: 1.2;
}

.memory-lane-rating {
    display: flex;
    justify-content: center;
    gap: 8px;
    font-size: 24px;
}

/* Photo container */
.memory-lane-photo-container {
    width: 100%;
    max-width: 500px;
    aspect-ratio: 4/5;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.6);
    margin-bottom: 20px;
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.memory-lane-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.memory-lane-no-photo {
    font-size: 60px;
    opacity: 0.3;
}

/* Note section - overlay at bottom of image */
.memory-lane-note {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    max-height: 30%;
    padding: 20px 24px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.85) 0%, rgba(0, 0, 0, 0.7) 70%, transparent 100%);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    overflow: hidden;
    display: flex;
    align-items: flex-end;
    z-index: 10;
}

.memory-lane-note-text {
    color: white;
    font-size: 15px;
    line-height: 1.5;
    font-style: italic;
    text-align: center;
    font-weight: 400;
    letter-spacing: 0.2px;
    position: relative;
    width: 100%;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);

    /* Text truncation with ellipsis */
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    max-height: 4.5em; /* 3 lines × 1.5 line-height */
}

.memory-lane-note-text::before {
    content: '"';
    position: relative;
    font-size: 28px;
    font-family: Georgia, serif;
    line-height: 1;
    opacity: 0.7;
    font-style: normal;
    color: rgba(255, 255, 255, 0.9);
    margin-right: 4px;
    vertical-align: top;
}

.memory-lane-note-text::after {
    content: '"';
    position: relative;
    font-size: 28px;
    font-family: Georgia, serif;
    line-height: 1;
    opacity: 0.7;
    font-style: normal;
    color: rgba(255, 255, 255, 0.9);
    margin-left: 4px;
    vertical-align: bottom;
}

/* Close button */
.memory-lane-close {
    position: absolute;
    top: 12px;
    right: 16px;
    top: calc(env(safe-area-inset-top, 0px) + 12px);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 20;
    transition: background 0.2s var(--ease-out);
}

.memory-lane-close:active {
    background: rgba(0, 0, 0, 0.7);
}

/* Empty state */
.memory-lane-empty {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: white;
    text-align: center;
    padding: 40px;
}

.memory-lane-empty.active {
    display: flex;
}

.memory-lane-empty-icon {
    font-size: 80px;
    margin-bottom: 24px;
    opacity: 0.5;
}

.memory-lane-empty-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
}

.memory-lane-empty-text {
    font-size: 16px;
    opacity: 0.7;
    line-height: 1.6;
}

/* Touch zones for navigation */
.memory-lane-touch-zone {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 30%;
    z-index: 5;
    cursor: pointer;
}

.memory-lane-touch-zone.left {
    left: 0;
}

.memory-lane-touch-zone.right {
    right: 0;
}

/* Loading state */
.memory-lane-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: white;
}

.memory-lane-loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid rgba(255, 255, 255, 0.2);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 16px;
}

.memory-lane-loading-text {
    font-size: 16px;
    opacity: 0.7;
}

/* End screen */
.memory-lane-end {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: white;
    text-align: center;
    padding: 40px;
}

.memory-lane-end.active {
    display: flex;
}

.memory-lane-end-icon {
    font-size: 80px;
    margin-bottom: 24px;
}

.memory-lane-end-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 12px;
}

.memory-lane-end-text {
    font-size: 16px;
    opacity: 0.7;
    line-height: 1.6;
    margin-bottom: 40px;
}

.memory-lane-end-actions {
    display: flex;
    flex-direction: column;
    gap: 16px;
    width: 100%;
    max-width: 300px;
}

.memory-lane-end-btn {
    padding: 16px 32px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: transform 0.2s var(--ease-out), opacity 0.2s var(--ease-out);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.memory-lane-end-btn:active {
    transform: scale(0.95);
}

.memory-lane-end-btn.primary {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.4);
}

.memory-lane-end-btn.secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.memory-lane-end-btn:hover {
    opacity: 0.9;
}