/* Quotes Box – same size and style as XKCD/APOD, stacked above XKCD */
.quotes-box {
    position: fixed;
    bottom: 322px;
    left: 20px;
    width: 360px;
    background: rgba(20, 10, 30, 0.95);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(34, 197, 94, 0.6);
    border-radius: 12px;
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.8),
        0 0 40px rgba(34, 197, 94, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    z-index: 1001;
    padding: 0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.quotes-box::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(34, 197, 94, 0.1) 0%, transparent 70%);
    animation: rotate-glow 8s linear infinite;
    pointer-events: none;
}

.quotes-box-glow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.1) 0%, rgba(21, 128, 61, 0.1) 100%);
    opacity: 0.5;
    pointer-events: none;
    border-radius: 12px;
}

.quotes-box:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow:
        0 12px 40px rgba(0, 0, 0, 0.9),
        0 0 60px rgba(34, 197, 94, 0.7),
        inset 0 1px 0 rgba(255, 255, 255, 0.15);
    border-color: rgba(34, 197, 94, 0.8);
}

.quotes-box-content {
    position: relative;
    z-index: 1;
    padding: 12px;
}

.quotes-box-header {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #bbf7d0;
    font-size: 11px;
    text-shadow: 0 0 10px rgba(34, 197, 94, 0.8);
    margin-bottom: 8px;
}

.quotes-box-title {
    flex: 1;
    min-width: 0;
    font-weight: 700;
    font-size: 16px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.quotes-icon-wrapper {
    position: relative;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.quotes-icon {
    font-size: 16px;
    position: relative;
    z-index: 2;
    filter: drop-shadow(0 0 8px rgba(34, 197, 94, 0.8));
    display: flex;
    align-items: center;
    justify-content: center;
}

.quotes-icon svg {
    width: 100%;
    height: 100%;
    display: block;
}

.quotes-box-close {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.4) 0%, rgba(21, 128, 61, 0.4) 100%);
    border: 1px solid rgba(34, 197, 94, 0.6);
    color: #bbf7d0;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-shadow: 0 0 8px rgba(34, 197, 94, 0.8);
    padding: 0;
    line-height: 1;
    flex-shrink: 0;
    position: relative;
}

.quotes-box-close::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.3s, height 0.3s;
}

.quotes-box-close:hover::before {
    width: 100%;
    height: 100%;
}

.quotes-box-close:hover {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.6) 0%, rgba(21, 128, 61, 0.6) 100%);
    box-shadow: 0 0 25px rgba(34, 197, 94, 1), 0 0 40px rgba(21, 128, 61, 0.6);
    transform: scale(1.15) rotate(5deg);
    border-color: rgba(34, 197, 94, 0.9);
}

.quotes-box-close:active {
    transform: scale(1.05) rotate(-5deg);
}

.quotes-quote-container {
    position: relative;
    width: 100%;
    min-height: 200px;
    height: 200px;
    border-radius: 8px;
    overflow: auto;
    background: rgba(0, 0, 0, 0.35);
    padding: 16px 16px 16px 28px;
    color: #d1fae5;
    font-size: 15px;
    font-style: italic;
    line-height: 1.65;
    letter-spacing: 0.02em;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(34, 197, 94, 0.25);
    text-shadow: 0 0 12px rgba(34, 197, 94, 0.6);
    font-family: Georgia, "Times New Roman", serif;
    box-sizing: border-box;
}

.quotes-quote-container::before {
    content: '"';
    position: absolute;
    top: 8px;
    left: 12px;
    font-size: 48px;
    line-height: 1;
    font-family: Georgia, "Times New Roman", serif;
    color: rgba(34, 197, 94, 0.35);
    pointer-events: none;
}

.quotes-quote-container::after {
    content: '"';
    position: absolute;
    bottom: 8px;
    right: 12px;
    font-size: 48px;
    line-height: 1;
    font-family: Georgia, "Times New Roman", serif;
    color: rgba(34, 197, 94, 0.35);
    pointer-events: none;
}

.quotes-quote-container:hover {
    border-color: rgba(34, 197, 94, 0.5);
    box-shadow: 0 0 20px rgba(34, 197, 94, 0.4);
}

.quotes-quote-author {
    margin-top: 10px;
    font-size: 13px;
    color: rgba(187, 247, 208, 0.95);
    font-style: italic;
    text-align: right;
    text-shadow: 0 0 8px rgba(34, 197, 94, 0.8);
    letter-spacing: 0.03em;
}

/* XKCD Box */
.xkcd-box {
    position: fixed;
    bottom: 20px;
    left: 20px;
    width: 360px;
    background: rgba(20, 10, 30, 0.95);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(34, 197, 94, 0.6);
    border-radius: 12px;
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.8),
        0 0 40px rgba(34, 197, 94, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    z-index: 1001;
    padding: 0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.xkcd-box::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(34, 197, 94, 0.1) 0%, transparent 70%);
    animation: rotate-glow 8s linear infinite;
    pointer-events: none;
}

.xkcd-box-glow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.1) 0%, rgba(21, 128, 61, 0.1) 100%);
    opacity: 0.5;
    pointer-events: none;
    border-radius: 12px;
}

.xkcd-box:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow:
        0 12px 40px rgba(0, 0, 0, 0.9),
        0 0 60px rgba(34, 197, 94, 0.7),
        inset 0 1px 0 rgba(255, 255, 255, 0.15);
    border-color: rgba(34, 197, 94, 0.8);
}

.xkcd-box-content {
    position: relative;
    z-index: 1;
    padding: 12px;
}

.xkcd-box-header {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #bbf7d0;
    font-size: 11px;
    text-shadow: 0 0 10px rgba(34, 197, 94, 0.8);
    margin-bottom: 8px;
}

.xkcd-box-title {
    flex: 1;
    min-width: 0;
    font-weight: 700;
    font-size: 16px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.xkcd-icon-wrapper {
    position: relative;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.xkcd-icon {
    font-size: 16px;
    position: relative;
    z-index: 2;
    filter: drop-shadow(0 0 8px rgba(34, 197, 94, 0.8));
}

.xkcd-box-close {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.4) 0%, rgba(21, 128, 61, 0.4) 100%);
    border: 1px solid rgba(34, 197, 94, 0.6);
    color: #bbf7d0;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-shadow: 0 0 8px rgba(34, 197, 94, 0.8);
    padding: 0;
    line-height: 1;
    flex-shrink: 0;
    position: relative;
}

.xkcd-box-close::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.3s, height 0.3s;
}

.xkcd-box-close:hover::before {
    width: 100%;
    height: 100%;
}

.xkcd-box-close:hover {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.6) 0%, rgba(21, 128, 61, 0.6) 100%);
    box-shadow: 0 0 25px rgba(34, 197, 94, 1), 0 0 40px rgba(21, 128, 61, 0.6);
    transform: scale(1.15) rotate(5deg);
    border-color: rgba(34, 197, 94, 0.9);
}

.xkcd-box-close:active {
    transform: scale(1.05) rotate(-5deg);
}

.xkcd-box-image-container {
    width: 100%;
    height: 225px;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    background: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    border: 1px solid rgba(34, 197, 94, 0.2);
}

.xkcd-box-image-container:hover {
    border-color: rgba(34, 197, 94, 0.5);
    box-shadow: 0 0 20px rgba(34, 197, 94, 0.4);
}

.xkcd-box-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.xkcd-loading,
.xkcd-error {
    font-size: 12px;
    color: #22c55e;
    text-shadow: 0 0 8px rgba(34, 197, 94, 0.8);
}

/* XKCD Popup */
.xkcd-popup {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    animation: fadeIn 0.3s ease;
}

.xkcd-popup-content {
    max-width: 900px;
    max-height: 90vh;
    background: rgba(20, 10, 30, 0.98);
    border: 1px solid rgba(34, 197, 94, 0.5);
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.8), 0 0 40px rgba(34, 197, 94, 0.5);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    animation: slideUp 0.3s ease;
}

.xkcd-popup-header {
    padding: 16px 20px;
    border-bottom: 1px solid rgba(34, 197, 94, 0.3);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(34, 197, 94, 0.1);
}

.xkcd-title {
    color: #bbf7d0;
    font-size: 24px;
    font-weight: 700;
    text-shadow: 0 0 10px rgba(34, 197, 94, 0.8);
    flex: 1;
    padding-right: 20px;
}

.xkcd-close {
    background: none;
    border: none;
    color: #bbf7d0;
    font-size: 28px;
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s;
    line-height: 1;
}

.xkcd-close:hover {
    background: rgba(34, 197, 94, 0.2);
    color: #dcfce7;
    text-shadow: 0 0 10px rgba(34, 197, 94, 0.8);
}

.xkcd-popup-image-container {
    max-height: 60vh;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #000;
}

.xkcd-popup-image {
    max-width: 100%;
    max-height: 60vh;
    object-fit: contain;
    display: block;
}

.xkcd-popup-alt {
    padding: 20px;
    color: #bbf7d0;
    font-size: 14px;
    line-height: 1.6;
    max-height: 200px;
    overflow-y: auto;
    border-top: 1px solid rgba(34, 197, 94, 0.2);
}

.xkcd-popup-alt::-webkit-scrollbar {
    width: 8px;
}

.xkcd-popup-alt::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 4px;
}

.xkcd-popup-alt::-webkit-scrollbar-thumb {
    background: rgba(34, 197, 94, 0.5);
    border-radius: 4px;
}

.xkcd-popup-alt::-webkit-scrollbar-thumb:hover {
    background: rgba(34, 197, 94, 0.7);
}

/* APOD Box */
.apod-box {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 360px;
    background: rgba(20, 10, 30, 0.95);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(34, 197, 94, 0.6);
    border-radius: 12px;
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.8),
        0 0 40px rgba(34, 197, 94, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    z-index: 1001;
    padding: 0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.apod-box::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(34, 197, 94, 0.1) 0%, transparent 70%);
    animation: rotate-glow 8s linear infinite;
    pointer-events: none;
}

.apod-box-glow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.1) 0%, rgba(21, 128, 61, 0.1) 100%);
    opacity: 0.5;
    pointer-events: none;
    border-radius: 12px;
}

.apod-box:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow:
        0 12px 40px rgba(0, 0, 0, 0.9),
        0 0 60px rgba(34, 197, 94, 0.7),
        inset 0 1px 0 rgba(255, 255, 255, 0.15);
    border-color: rgba(34, 197, 94, 0.8);
}

.apod-box-content {
    position: relative;
    z-index: 1;
    padding: 12px;
}

.apod-box-header {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #bbf7d0;
    font-size: 11px;
    text-shadow: 0 0 10px rgba(34, 197, 94, 0.8);
    margin-bottom: 8px;
}

.apod-box-title {
    flex: 1;
    min-width: 0;
    font-weight: 700;
    font-size: 16px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.apod-icon-wrapper {
    position: relative;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.apod-icon {
    font-size: 16px;
    position: relative;
    z-index: 2;
    filter: drop-shadow(0 0 8px rgba(34, 197, 94, 0.8));
}

.apod-box-close {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.4) 0%, rgba(21, 128, 61, 0.4) 100%);
    border: 1px solid rgba(34, 197, 94, 0.6);
    color: #bbf7d0;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-shadow: 0 0 8px rgba(34, 197, 94, 0.8);
    padding: 0;
    line-height: 1;
    flex-shrink: 0;
    position: relative;
}

.apod-box-close::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.3s, height 0.3s;
}

.apod-box-close:hover::before {
    width: 100%;
    height: 100%;
}

.apod-box-close:hover {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.6) 0%, rgba(21, 128, 61, 0.6) 100%);
    box-shadow: 0 0 25px rgba(34, 197, 94, 1), 0 0 40px rgba(21, 128, 61, 0.6);
    transform: scale(1.15) rotate(5deg);
    border-color: rgba(34, 197, 94, 0.9);
}

.apod-box-close:active {
    transform: scale(1.05) rotate(-5deg);
}

.apod-box-image-container {
    width: 100%;
    height: 225px;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    background: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    border: 1px solid rgba(34, 197, 94, 0.2);
}

.apod-box-image-container:hover {
    border-color: rgba(34, 197, 94, 0.5);
    box-shadow: 0 0 20px rgba(34, 197, 94, 0.4);
}

.apod-box-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.apod-loading,
.apod-error {
    font-size: 12px;
    color: #22c55e;
    text-shadow: 0 0 8px rgba(34, 197, 94, 0.8);
}

/* Chess.com Daily Box (centered above dock) */
.chess-box {
    position: fixed;
    bottom: 130px;
    left: 50%;
    transform: translateX(-50%);
    width: 420px;
    max-width: calc(100vw - 40px);
    background: rgba(20, 10, 30, 0.95);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(34, 197, 94, 0.6);
    border-radius: 12px;
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.8),
        0 0 40px rgba(34, 197, 94, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    z-index: 1001;
    padding: 0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.chess-box::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(34, 197, 94, 0.1) 0%, transparent 70%);
    animation: rotate-glow 8s linear infinite;
    pointer-events: none;
}

.chess-box-glow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.1) 0%, rgba(21, 128, 61, 0.1) 100%);
    opacity: 0.5;
    pointer-events: none;
    border-radius: 12px;
}

.chess-box:hover {
    transform: translateX(-50%) translateY(-4px) scale(1.02);
    box-shadow:
        0 12px 40px rgba(0, 0, 0, 0.9),
        0 0 60px rgba(34, 197, 94, 0.7),
        inset 0 1px 0 rgba(255, 255, 255, 0.15);
    border-color: rgba(34, 197, 94, 0.8);
}

.chess-box-content {
    position: relative;
    z-index: 1;
    padding: 12px;
}

.chess-box-header {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #bbf7d0;
    font-size: 11px;
    text-shadow: 0 0 10px rgba(34, 197, 94, 0.8);
    margin-bottom: 8px;
}

.chess-box-title {
    flex: 1;
    min-width: 0;
    font-weight: 700;
    font-size: 16px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.chess-icon-wrapper {
    position: relative;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.chess-icon {
    font-size: 30px;
    position: relative;
    z-index: 2;
    filter: drop-shadow(0 0 8px rgba(34, 197, 94, 0.8));
}

.chess-box-close {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.4) 0%, rgba(21, 128, 61, 0.4) 100%);
    border: 1px solid rgba(34, 197, 94, 0.6);
    color: #bbf7d0;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-shadow: 0 0 8px rgba(34, 197, 94, 0.8);
    padding: 0;
    line-height: 1;
    flex-shrink: 0;
    position: relative;
}

.chess-box-close::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.3s, height 0.3s;
}

.chess-box-close:hover::before {
    width: 100%;
    height: 100%;
}

.chess-box-close:hover {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.6) 0%, rgba(21, 128, 61, 0.6) 100%);
    box-shadow: 0 0 25px rgba(34, 197, 94, 1), 0 0 40px rgba(21, 128, 61, 0.6);
    transform: scale(1.15) rotate(5deg);
    border-color: rgba(34, 197, 94, 0.9);
}

.chess-box-close:active {
    transform: scale(1.05) rotate(-5deg);
}

.chess-box-puzzle-container {
    width: 100%;
    min-height: 280px;
    border-radius: 8px;
    overflow: hidden;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(34, 197, 94, 0.2);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 12px;
}

.chess-loading,
.chess-error {
    color: #86efac;
    font-size: 14px;
    text-shadow: 0 0 8px rgba(34, 197, 94, 0.8);
}

.chess-puzzle-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    width: 100%;
}

.chess-board-wrap {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    grid-template-rows: repeat(8, 1fr);
    aspect-ratio: 1;
    width: 100%;
    max-width: 240px;
    border: 2px solid rgba(34, 197, 94, 0.5);
    border-radius: 6px;
    overflow: hidden;
    box-shadow: inset 0 0 12px rgba(0, 0, 0, 0.4);
}

.chess-board-wrap .cell {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: clamp(18px, 4.5vw, 28px);
    line-height: 1;
}

.chess-board-wrap .cell.light {
    background: rgba(234, 233, 210, 0.95);
    color: #1a1a1a;
}

.chess-board-wrap .cell.dark {
    background: rgba(118, 150, 86, 0.95);
    color: #1a1a1a;
}

.chess-play-link {
    color: #86efac;
    font-size: 13px;
    text-decoration: none;
    text-shadow: 0 0 8px rgba(34, 197, 94, 0.8);
    transition: opacity 0.2s;
}

.chess-play-link:hover {
    opacity: 0.9;
    text-decoration: underline;
}

.apod-popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.apod-popup-content {
    max-width: 900px;
    max-height: 90vh;
    background: rgba(20, 10, 30, 0.98);
    border: 1px solid rgba(34, 197, 94, 0.5);
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.8), 0 0 40px rgba(34, 197, 94, 0.5);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.apod-popup-header {
    padding: 16px 20px;
    border-bottom: 1px solid rgba(34, 197, 94, 0.3);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(34, 197, 94, 0.1);
}

.apod-title {
    color: #bbf7d0;
    font-size: 24px;
    font-weight: 700;
    text-shadow: 0 0 10px rgba(34, 197, 94, 0.8);
    flex: 1;
    padding-right: 20px;
}

.apod-close {
    background: none;
    border: none;
    color: #bbf7d0;
    font-size: 28px;
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s;
    line-height: 1;
}

.apod-close:hover {
    background: rgba(34, 197, 94, 0.2);
    color: #dcfce7;
    text-shadow: 0 0 10px rgba(34, 197, 94, 0.8);
}

.apod-popup-image-container {
    max-height: 60vh;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #000;
}

.apod-popup-image {
    max-width: 100%;
    max-height: 60vh;
    object-fit: contain;
    display: block;
}

.apod-popup-explanation {
    padding: 20px;
    color: #bbf7d0;
    font-size: 14px;
    line-height: 1.6;
    max-height: 200px;
    overflow-y: auto;
    border-top: 1px solid rgba(34, 197, 94, 0.2);
}

.apod-popup-explanation::-webkit-scrollbar {
    width: 8px;
}

.apod-popup-explanation::-webkit-scrollbar-track {
    background: rgba(34, 197, 94, 0.1);
}

.apod-popup-explanation::-webkit-scrollbar-thumb {
    background: rgba(34, 197, 94, 0.5);
    border-radius: 4px;
}

.apod-popup-explanation::-webkit-scrollbar-thumb:hover {
    background: rgba(34, 197, 94, 0.7);
}

.apod-popup-date {
    padding: 12px 20px;
    color: #4ade80;
    font-size: 12px;
    text-align: center;
    border-top: 1px solid rgba(34, 197, 94, 0.2);
    background: rgba(34, 197, 94, 0.05);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}