:root {
    --bg-color: #111015;
    --glass-bg: rgba(22, 21, 28, 0.5);
    --border-color: rgba(255, 255, 255, 0.1);
    --text-primary: #f0f0f5;
    --text-secondary: #a0a0b0;
    --accent-gradient: linear-gradient(90deg, #c084fc, #ff71cd);
    --slider-gradient: linear-gradient(90deg, #ff71cd, #ff9a9e);
    --accent-glow: rgba(192, 132, 252, 0.4);
    --radius: 16px;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    /* Changed to column for header/footer */
    position: relative;
    overflow-x: hidden;
}

.background-effects {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
}

.background-effects::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('data:image/svg+xml,%3Csvg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 800 800"%3E%3Cg fill-opacity="0.2"%3E%3Ccircle fill="%23c084fc" cx="100" cy="100" r="400"/%3E%3Ccircle fill="%23ff71cd" cx="700" cy="500" r="400"/%3E%3Ccircle fill="%234338ca" cx="300" cy="600" r="200"/%3E%3C/g%3E%3C/svg%3E');
    background-size: 200% 200%;
    opacity: 0.3;
    animation: gradient-flow 20s ease infinite;
}

.background-effects::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADIAAAAyCAMAAAAp4XiGAAAAUVBAMAAABVRzIiAAAAKlBMVEXx8fH8/Pz5+fn19fX29vb4+Pj09PT6+vrz8/P7+/v39/f9/f3////w8PC2G3paAAAAZ0lEQVR42u3MyQkAIADDMDDT/v/L0wJ3SgPQAwAy7MU8A84c3Sjpno7gWE2cOIgls2wG2iV4w+YhBL9aMydjG8Bf7k3Tn42NirTD28zMo2ZgcSoH5pZf/gqg/xYAj55TTnAAAAAElFTSuQmCC');
    opacity: 0.05;
}

@keyframes gradient-flow {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

main {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 2rem;
    flex-grow: 1;
}

.container {
    width: 100%;
    max-width: 900px;
    background: var(--glass-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 2.5rem;
    text-align: center;
    transition: all 0.3s ease;
}

.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius);
    padding: 3rem 1rem;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    margin-bottom: 2rem;
    position: relative;
}

.upload-area:hover,
.upload-area.drag-over {
    border-color: #c084fc;
    background: rgba(192, 132, 252, 0.1);
}

.upload-area input[type="file"] {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.upload-area-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    color: var(--text-secondary);
    pointer-events: none;
}

.upload-area-content svg {
    width: 50px;
    height: 50px;
    stroke: #c084fc;
}

.conversion-options {
    display: none;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.conversion-option {
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 0.75rem 1.5rem;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    font-weight: 500;
    color: var(--text-secondary);
}

.conversion-option:hover {
    border-color: #c084fc;
    color: var(--text-primary);
}

.conversion-option.selected {
    color: white;
    border-color: transparent;
    background: var(--accent-gradient);
    box-shadow: 0 0 15px 0 var(--accent-glow);
}

.quality-control {
    display: none;
    margin-bottom: 2rem;
    padding: 0 1rem;
}

.quality-control label {
    display: block;
    margin-bottom: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
}

input[type="range"] {
    -webkit-appearance: none;
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 5px;
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    background: var(--slider-gradient);
    cursor: pointer;
    border-radius: 50%;
    box-shadow: 0 0 10px 0 var(--accent-glow);
}

input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--slider-gradient);
    cursor: pointer;
    border-radius: 50%;
    border: none;
}

#resultsContainer {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 2rem;
}

.result-item {
    background: var(--glass-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.5rem;
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    text-align: left;
    position: relative;
}

.delete-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 24px;
    height: 24px;
    background-color: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 16px;
    line-height: 1;
    transition: all 0.2s ease;
}

.delete-btn:hover {
    background-color: rgba(255, 113, 205, 0.2);
    border-color: #ff71cd;
    color: var(--text-primary);
    transform: scale(1.1);
}

.image-display {
    display: flex;
    align-items: center;
    gap: 1rem;
    min-width: 0;
    /* Crucial for allowing flex items to shrink */
}

.image-display img {
    width: 100px;
    height: 60px;
    object-fit: cover;
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.2);
    flex-shrink: 0;
    /* Prevent image from shrinking */
}

.image-info {
    flex-grow: 1;
    min-width: 0;
    /* Allow this container to shrink */
}

.image-info .filename {
    font-weight: 500;
    color: var(--text-primary);
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.image-info .filesize {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.status-wrapper,
.download-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
}

.status-text {
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 8px;
}

.status-text.pending {
    color: #fcd34d;
    background-color: rgba(252, 211, 77, 0.1);
}

.status-text.error {
    color: #fca5a5;
    background-color: rgba(153, 27, 27, 0.2);
}

.download-btn {
    background: var(--accent-gradient);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.2s ease;
    box-shadow: 0 0 15px -5px var(--accent-glow);
}

.download-btn:hover {
    box-shadow: 0 0 20px 0 var(--accent-glow);
    transform: translateY(-2px);
}

.download-btn.disabled {
    background: var(--border-color);
    cursor: not-allowed;
    box-shadow: none;
    color: var(--text-secondary);
}

#downloadAllBtn {
    margin-top: 2rem;
    display: none;
    margin-left: auto;
    margin-right: auto;
}

.message {
    margin-top: 1.5rem;
    padding: 1rem;
    border-radius: var(--radius);
    font-weight: 500;
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.message.show {
    display: block;
    opacity: 1;
}

.message.success {
    background-color: rgba(4, 120, 87, 0.3);
    color: #6ee7b7;
}

.message.error {
    background-color: rgba(153, 27, 27, 0.3);
    color: #fca5a5;
}

/* Tablet Responsive Styles */
@media (min-width: 768px) {
    .result-item {
        grid-template-columns: 1fr 1fr auto;
        align-items: center;
        padding-right: 40px;
        /* Space for delete button */
    }

    .status-wrapper,
    .download-wrapper {
        justify-content: flex-end;
    }
}

/* Mobile Responsive Styles */
@media (max-width: 767px) {
    main {
        padding: 1rem;
    }

    .container {
        padding: 1.5rem;
    }

    .upload-area {
        padding: 2rem 1rem;
    }

    .result-item {
        padding: 1rem;
        padding-right: 40px;
        /* Space for delete button */
        gap: 1rem;
    }

    .image-display img {
        width: 80px;
        height: 50px;
    }

    .status-wrapper {
        justify-content: flex-start;
    }
}

@media (max-width: 480px) {
    .conversion-option {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
}