:root {
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --bg-color: #0f172a;
    --surface: #1e293b;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --border: #334155;
    --error: #ef4444;
    --success: #10b981;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    background-image: radial-gradient(circle at top right, #1e1b4b, transparent 40%),
                      radial-gradient(circle at bottom left, #0f172a, transparent 40%);
}

.container {
    background: var(--surface);
    width: 100%;
    max-width: 480px;
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--border);
    backdrop-filter: blur(10px);
}

header {
    text-align: center;
    margin-bottom: 35px;
}

h1 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 8px;
    background: linear-gradient(135deg, #a5b4fc, #818cf8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

header p {
    color: var(--text-muted);
    font-size: 14px;
}

.tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.tab-btn {
    flex: 1;
    padding: 10px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: var(--text-muted);
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.tab-btn.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* Switch Toggle Styles */
.switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

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

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.1);
    transition: .4s;
    border-radius: 24px;
    border: 1px solid var(--border);
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 2px;
    bottom: 2px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

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

input:focus + .slider {
    box-shadow: 0 0 1px var(--primary);
}

input:checked + .slider:before {
    transform: translateX(20px);
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 15px;
}

.checkbox-group label {
    margin-bottom: 0;
    cursor: pointer;
    font-size: 14px;
    text-transform: none;
    letter-spacing: normal;
    color: var(--text-main);
}


.form-group {
    margin-bottom: 24px;
    display: flex;
    flex-direction: column;
}

.form-row {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.half {
    flex: 1;
    min-width: 0;
}

label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

input, select, textarea {
    width: 100%;
    max-width: 100%;
    background-color: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 14px 16px;
    color: var(--text-main);
    font-size: 15px;
    font-family: inherit;
    transition: all 0.3s ease;
    outline: none;
}

textarea {
    resize: vertical;
    min-height: 120px;
    line-height: 1.5;
}

input:focus, select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2394a3b8'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    background-size: 16px;
    padding-right: 40px;
    cursor: pointer;
}

select option {
    background-color: var(--surface);
    color: var(--text-main);
}

button {
    width: 100%;
    background-color: var(--primary);
    color: white;
    border: none;
    border-radius: 12px;
    padding: 16px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.1s;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
}

button:hover {
    background-color: var(--primary-hover);
}

button:active {
    transform: scale(0.98);
}

button:disabled {
    background-color: var(--border);
    color: var(--text-muted);
    cursor: not-allowed;
}

.loader {
    display: none;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Multi-Progress Styles */
#progressContainer {
    margin-top: 30px;
    max-height: 450px;
    overflow-y: auto;
    padding-right: 5px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

#progressContainer::-webkit-scrollbar {
    width: 6px;
}

#progressContainer::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 10px;
}

.progress-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 16px;
    animation: slideIn 0.3s ease-out;
    flex-shrink: 0;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.progress-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.progress-title {
    font-weight: 600;
    color: var(--primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 65%;
    font-size: 14px;
}

.progress-status {
    font-size: 12px;
    color: var(--text-muted);
}

.progress-bar-bg {
    width: 100%;
    height: 8px;
    background: var(--surface);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 12px;
}

.progress-bar-fill {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--primary-hover));
    transition: width 0.3s ease;
}

.progress-stats {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    color: var(--text-muted);
    font-family: 'Inter', sans-serif;
}

.progress-eta {
    color: var(--primary);
    font-weight: 600;
}

#statusMessage {
    margin-top: 20px;
    padding: 14px;
    border-radius: 10px;
    text-align: center;
    font-size: 14px;
    font-weight: 500;
}

.hidden {
    display: none !important;
}

.error {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--error);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.success {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.blue-btn {
    background-color: #3b82f6; /* Blue 500 */
    margin-top: 15px;
    font-size: 14px;
    padding: 12px;
}

.blue-btn:hover {
    background-color: #2563eb; /* Blue 600 */
}

.slideshow-inline-container {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.slideshow-scroll-area {
    display: flex;
    overflow-x: auto;
    gap: 10px;
    padding-bottom: 10px;
    margin-bottom: 15px;
}

.slideshow-scroll-area::-webkit-scrollbar {
    height: 6px;
}

.slideshow-scroll-area::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 10px;
}

.slideshow-item {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.2s;
    flex-shrink: 0;
    width: 100px;
}

.slideshow-item.selected {
    border-color: var(--primary);
}

.slideshow-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    aspect-ratio: 9/16;
}

.slideshow-item .check-indicator {
    position: absolute;
    top: 5px;
    right: 5px;
    width: 20px;
    height: 20px;
    background: rgba(0,0,0,0.5);
    border: 2px solid white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slideshow-item.selected .check-indicator {
    background: var(--primary);
    border-color: var(--primary);
}

.slideshow-item.selected .check-indicator::after {
    content: "✓";
    color: white;
    font-size: 14px;
}

.individualDownloadBtn {
    position: absolute;
    bottom: 5px;
    right: 5px;
    width: 24px;
    height: 24px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    cursor: pointer;
    opacity: 0.8;
    transition: opacity 0.2s;
    z-index: 5;
}

.individualDownloadBtn:hover {
    opacity: 1;
}