:root {
    --bg-color: #2D303A;
    /* Refine Lab Anthracite +10% L */
    --panel-bg: rgba(45, 48, 58, 0.8);
    --border-color: #454852;
    --accent-color: #fe5a00;
    /* Refine Lab Vibrant Orange */
    --accent-hover: #e04f00;
    --text-main: #FFFFFF;
    --text-muted: #B4B4B4;
    /* Refine Lab Muted Gray */
    --success-color: #2ea043;
    --danger-color: #da3633;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    display: flex;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem;
    background-image:
        radial-gradient(circle at top right, rgba(254, 90, 0, 0.05), transparent 400px),
        radial-gradient(circle at bottom left, rgba(254, 90, 0, 0.03), transparent 600px);
}

.app-container {
    width: 100%;
    max-width: 800px;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.app-header {
    text-align: center;
    margin-bottom: 1rem;
}

.app-header h1 {
    font-size: 2.2rem;
    color: #fff;
    margin-bottom: 0.5rem;
}

.feature-highlights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

.feature-card {
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.2rem;
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}


.feature-icon {
    font-size: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    flex-shrink: 0;
}

.feature-text h4 {
    font-size: 0.95rem;
    margin-bottom: 0.3rem;
    color: #fff;
}

.feature-text p {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.4;
}

@media (max-width: 600px) {
    .feature-highlights {
        grid-template-columns: 1fr;
    }
}

.settings-panel {
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    backdrop-filter: blur(10px);
}

.settings-two-cols {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.setting-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.setting-group label {
    font-weight: 600;
    color: #fff;
    display: flex;
    justify-content: space-between;
}

.toggle-row {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    margin-bottom: 0rem;
    gap: 1rem;
}

.toggle-row label {
    justify-content: flex-start;
    margin-bottom: 0;
}

.toggle-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin: 0;
    line-height: 1.4;
    margin-bottom: 0.5rem;
    padding-left: 4.75rem;
}

.radio-group {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    background: rgba(26, 26, 26, 0.2);
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.settings-divider {
    width: 100%;
    height: 1px;
    background: var(--border-color);
    margin: 0.2rem 0;
}

.card-style {
    background: rgba(26, 26, 26, 0.2);
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-style:hover {
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.radio-label input[type="radio"] {
    accent-color: var(--accent-color);
}

.form-select {
    width: 100%;
    padding: 0.6rem;
    background: rgba(26, 26, 26, 0.3);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: white;
    font-size: 0.95rem;
    outline: none;
    cursor: pointer;
    transition: border-color 0.2s;
}

.form-select:focus {
    border-color: var(--accent-color);
}

.form-select option {
    background-color: var(--bg-color);
    color: white;
}

.size-pill-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.size-pill {
    cursor: pointer;
}

.size-pill input[type="radio"] {
    display: none;
}

.size-pill span {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1.2rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    /* Changed from 30px */
    font-size: 0.85rem;
    color: var(--text-main);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    user-select: none;
    overflow: hidden;
    z-index: 1;
}

#toggleAdvancedSettingsBtn {
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

#toggleAdvancedSettingsBtn:hover {
    background: rgba(254, 90, 0, 0.1) !important;
    border-color: var(--accent-color) !important;
    color: white !important;
}

/* Pseudo-element for the animated border */
.size-pill span::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(transparent, transparent, transparent, var(--accent-color));
    animation: rotateBorder 2s linear infinite;
    z-index: -2;
    opacity: 0;
    transition: opacity 0.3s;
}

/* Inner masking to create the border effect */
.size-pill span::after {
    content: '';
    position: absolute;
    inset: 1px;
    background: #2D303A;
    border-radius: 7px;
    /* Approximately 8px - inset */
    z-index: -1;
    transition: background 0.2s;
}

@keyframes rotateBorder {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.size-pill input[type="radio"]:checked+span {
    color: #FFFFFF;
    background: var(--accent-color);
    text-shadow: none !important;
    animation: popAndGlow 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

.size-pill input[type="radio"]:checked+span::after,
.size-pill input[type="radio"]:checked+span::before {
    display: none;
}

@keyframes popAndGlow {
    0% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(254, 90, 0, 0.4);
    }

    50% {
        transform: scale(1.05);
    }

    100% {
        transform: scale(1);
        box-shadow: 0 0 8px 1px rgba(254, 90, 0, 0.6);
    }
}

.size-pill span:active {
    transform: scale(0.92);
}

.size-pill:not(:has(input:checked)):hover span::before {
    opacity: 1;
}

.size-pill:not(:has(input:checked)):hover span::after {
    background: rgba(30, 35, 40, 0.9);
    /* Slightly lighter on hover */
}

input[type="range"] {
    width: 100%;
    accent-color: var(--accent-color);
    cursor: pointer;
}

.upload-area {
    background: var(--panel-bg);
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 3rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    backdrop-filter: blur(10px);
}

.upload-area:hover,
.upload-area.drag-over {
    border-color: var(--accent-color);
    background: rgba(254, 90, 0, 0.05);
}

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

.upload-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    pointer-events: none;
}

.upload-icon {
    color: var(--accent-color);
    transition: transform 0.3s ease;
}

.upload-area:hover .upload-icon {
    transform: translateY(-5px);
}

.list-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding: 0 0.5rem;
}

.download-all-btn {
    background-color: var(--success-color);
    color: #FFFFFF;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.2s, background-color 0.2s;
}

.download-all-btn:hover:not(:disabled) {
    background-color: #3fb950;
}

.download-all-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background-color: var(--border-color);
}

.file-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.file-item {
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    animation: slideIn 0.3s ease forwards;
}

.file-info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.file-details {
    display: flex;
    flex-direction: column;
}

.file-name {
    font-weight: 600;
    word-break: break-all;
    max-width: 400px;
}

.file-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.file-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.status-text {
    font-size: 0.9rem;
    font-weight: 500;
}

.status-text.processing {
    color: #d2a8ff;
}

.status-text.success {
    color: var(--success-color);
}

.status-text.error {
    color: var(--danger-color);
}

.download-btn {
    background-color: var(--accent-color);
    color: white;
    text-decoration: none;
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    display: none;
    transition: background-color 0.2s;
}

.download-btn:hover {
    background-color: var(--accent-hover);
}

.progress-track {
    width: 100%;
    height: 6px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    width: 0%;
    background-color: var(--accent-color);
    transition: width 0.3s ease;
}

.progress-fill.success {
    background-color: var(--success-color);
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Toggle Switch Styles */
.switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
    flex-shrink: 0;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border-color);
    transition: .4s;
}

.slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
}

input:checked+.slider {
    background-color: var(--accent-color);
}

input:checked+.slider:before {
    transform: translateX(26px);
}

.slider.round {
    border-radius: 34px;
}

.slider.round:before {
    border-radius: 50%;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(26, 26, 26, 0.6);
    backdrop-filter: blur(5px);
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal.show {
    display: flex;
    opacity: 1;
}

.modal-content {
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2.5rem;
    width: 90%;
    max-width: 500px;
    position: relative;
    text-align: center;
    box-shadow: 0 10px 30px rgba(26, 26, 26, 0.5);
    transform: scale(0.95);
    transition: transform 0.3s ease;
}

.modal.show .modal-content {
    transform: scale(1);
}

.close-modal {
    position: absolute;
    right: 1.5rem;
    top: 1.2rem;
    color: var(--text-muted);
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close-modal:hover {
    color: white;
}

.chevron {
    transition: transform 0.3s ease;
}

.chevron.rotate {
    transform: rotate(180deg);
}

.modal-content h2 {
    margin-bottom: 2rem;
    color: white;
}

.report-stats {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.stat-card.sum-card {
    border-color: var(--success-color);
    background: rgba(46, 160, 67, 0.1);
}

.stat-title {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 600;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: bold;
    color: white;
}

.sum-card .stat-value {
    color: var(--success-color);
}

.report-highlight {
    background: linear-gradient(135deg, rgba(254, 90, 0, 0.1) 0%, rgba(46, 160, 67, 0.1) 100%);
    border: 1px solid var(--accent-color);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.report-highlight h3 {
    color: white;
    margin-bottom: 0.5rem;
}

.highlight-text {
    color: var(--accent-color);
    font-weight: bold;
    font-size: 1.2em;
}

.modal-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.primary-btn,
.secondary-btn,
.report-btn {
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
}

.primary-btn {
    background-color: var(--accent-color);
    color: #FFFFFF;
}

.primary-btn:hover {
    background-color: var(--accent-hover);
}

.secondary-btn {
    background-color: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

.secondary-btn:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: white;
}

.header-actions {
    display: flex;
    gap: 1rem;
}

.report-btn {
    background-color: transparent;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    padding: 0.5rem 1rem;
}

.report-btn:hover {
    background-color: rgba(254, 90, 0, 0.1);
}

@media (max-width: 768px) {
    .settings-two-cols {
        grid-template-columns: 1fr;
    }

    .file-name {
        max-width: 200px;
    }

    .report-stats {
        flex-direction: column;
    }
}

/* Buy Me a Coffee Button */
.bmc-btn {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 9999;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
}

.bmc-btn img {
    height: 48px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.bmc-btn:hover {
    transform: scale(1.05) translateY(-2px);
}

.bmc-btn:hover img {
    box-shadow: 0 6px 20px rgba(254, 90, 0, 0.6);
}

@media (max-width: 768px) {
    .bmc-btn {
        bottom: 16px;
        right: 16px;
    }

    .bmc-btn img {
        height: 40px;
    }
}

/* Language Toggle Button */
.lang-toggle-container {
    position: absolute;
    top: 24px;
    right: 24px;
    display: flex;
    gap: 0.5rem;
}

.lang-toggle-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.lang-toggle-btn:hover {
    background: rgba(254, 90, 0, 0.2);
    border-color: var(--accent-color);
    color: white;
}

.lang-toggle-btn.secondary {
    background: rgba(255, 255, 255, 0.05);
}

.lang-toggle-btn.secondary:hover {
    border-color: var(--text-muted);
    background: rgba(255, 255, 255, 0.1);
}

@media (max-width: 768px) {
    .lang-toggle-container {
        top: 16px;
        right: 16px;
    }
}