:root {
    --bg-color: #0f172a;
    --panel-bg: rgba(30, 41, 59, 0.7);
    --panel-border: rgba(255, 255, 255, 0.1);
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --accent: #10b981;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --danger: #ef4444;
    --warning: #f59e0b;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
    background: var(--bg-color);
    background-image: radial-gradient(circle at top right, #1e293b, transparent 40%),
                      radial-gradient(circle at bottom left, #0f172a, transparent 40%);
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
}

h1, h2, h3 { font-weight: 600; }

.glass-panel {
    background: var(--panel-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--panel-border);
    border-radius: 16px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

/* Hide authenticated views initially */
#app-container.hidden, .hidden {
    display: none !important;
}

/* --- Login View --- */
#login-view {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.login-box {
    padding: 40px;
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.login-box h2 {
    margin-bottom: 24px;
    font-size: 24px;
}

.input-group {
    margin-bottom: 20px;
    text-align: left;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    color: var(--text-muted);
}

.input-group input, .input-group select {
    width: 100%;
    padding: 12px 16px;
    border-radius: 8px;
    border: 1px solid var(--panel-border);
    background: rgba(15, 23, 42, 0.6);
    color: var(--text-main);
    font-size: 16px;
    transition: all 0.3s ease;
}

.input-group input:focus, .input-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.btn {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 8px;
    background: var(--primary);
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}
.btn.danger { background: var(--danger); }
.btn.danger:hover { background: #dc2626; }

/* --- Dashboard --- */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    margin: 20px;
}

.navbar h1 { font-size: 24px; letter-spacing: -0.5px; }
.navbar button { width: auto; padding: 10px 20px; }

/* Top Filter Row */
.filter-row {
    display: flex;
    gap: 16px;
    padding: 20px 40px;
    align-items: flex-end;
}
.filter-row .input-group { margin-bottom: 0; flex: 1; }
.filter-row select { appearance: none; }

/* Main Content */
.main-content {
    display: flex;
    padding: 0 40px;
    gap: 32px;
}

/* Upload Panel */
.upload-panel {
    width: 350px;
    padding: 32px;
    height: fit-content;
    position: sticky;
    top: 20px;
}
.upload-panel h3 { margin-bottom: 20px; }

/* Drag and Drop Zone */
.drop-zone {
    border: 2px dashed var(--panel-border);
    border-radius: 8px;
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    margin-bottom: 20px;
    transition: all 0.3s;
}
.drop-zone:hover {
    border-color: var(--primary);
    background: rgba(59, 130, 246, 0.05);
}
.drop-zone.dragover {
    border-color: var(--accent);
    background: rgba(16, 185, 129, 0.05);
}
#file-input { display: none; }
#file-label { color: var(--text-muted); font-size: 14px; pointer-events: none;}

/* Queue */
.upload-queue {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}
.queue-item {
    display: flex;
    justify-content: space-between;
    background: rgba(0,0,0,0.2);
    padding: 8px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    border: 1px solid transparent;
}
.queue-item:hover { background: rgba(59, 130, 246, 0.1); }
.queue-item.active { border-color: var(--primary); }
.queue-item .remove { color: var(--danger); cursor: pointer; padding: 0 4px; font-weight: bold;}

/* Dynamic Tag Input */
.tag-input-container {
    display: flex;
    align-items: center;
    gap: 8px;
}
.tag-input-container button {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: 8px;
}

/* Gallery Panel */
.gallery-panel {
    flex: 1;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
    padding-bottom: 40px;
}

.media-card {
    border-radius: 12px;
    overflow: hidden;
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.media-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.4);
    border-color: rgba(255,255,255,0.2);
}

.media-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-bottom: 1px solid var(--panel-border);
}

.media-info {
    padding: 16px;
    flex: 1;
}

.media-filename {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.tag-badge {
    display: inline-block;
    padding: 4px 8px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 4px;
    font-size: 12px;
    margin-right: 4px;
    margin-bottom: 8px;
    color: var(--text-muted);
}
.tag-badge span.key { color: var(--text-main); font-weight: 500;}

.card-actions {
    display: flex;
    gap: 8px;
    padding: 16px;
    background: rgba(0,0,0,0.2);
}

.card-actions button {
    padding: 8px;
    font-size: 14px;
    flex: 1;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal {
    width: 100%;
    max-width: 400px;
    padding: 32px;
}
.modal h3 { margin-bottom: 16px; }
.modal p { color: var(--text-muted); margin-bottom: 24px; line-height: 1.5;}
.modal-actions { display: flex; gap: 16px; }

/* --- Tabs --- */
.tabs {
    display: flex;
    gap: 16px;
    margin: 0 40px 20px 40px;
}
.tab-btn {
    padding: 12px 24px;
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: 8px;
    color: var(--text-muted);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}
.tab-btn.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}
.tab-btn:hover:not(.active) {
    background: rgba(255,255,255,0.05);
}

/* --- Monitor View --- */
#monitor-view {
    padding: 0 40px 40px 40px;
}

.monitor-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 24px;
    gap: 16px;
}

.monitor-toolbar .filters {
    display: flex;
    gap: 16px;
    flex: 1;
}

.table-container {
    overflow-x: auto;
}

.monitor-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.monitor-table th, .monitor-table td {
    padding: 16px;
    text-align: left;
    border-bottom: 1px solid var(--panel-border);
}

.monitor-table th {
    font-weight: 600;
    color: var(--text-muted);
    background: rgba(0,0,0,0.2);
    cursor: pointer;
    user-select: none;
}

.monitor-table th:first-child { border-top-left-radius: 8px; }
.monitor-table th:last-child { border-top-right-radius: 8px; }

.monitor-table tbody tr:hover {
    background: rgba(255,255,255,0.03);
}

.row-warning {
    background-color: rgba(234, 179, 8, 0.2); /* Yellow */
}
.row-warning:hover {
    background-color: rgba(234, 179, 8, 0.3) !important;
}

.row-error {
    background-color: rgba(239, 68, 68, 0.2); /* Red */
}
.row-error:hover {
    background-color: rgba(239, 68, 68, 0.3) !important;
}

.monitor-status.error-text {
    color: var(--danger);
    font-weight: 600;
}
.monitor-status.warning-text {
    color: var(--warning);
    font-weight: 600;
}

.thumbnail-pic {
    width: 64px;
    height: 48px;
    object-fit: cover;
    border-radius: 4px;
    cursor: pointer;
    border: 1px solid var(--panel-border);
    transition: transform 0.2s;
}
.thumbnail-pic:hover {
    transform: scale(1.1);
}

/* Image Modal */
#image-modal.hidden { display: none; }
#image-modal img {
    max-width: 90vw;
    max-height: 80vh;
    border-radius: 8px;
    box-shadow: 0 12px 40px rgba(0,0,0,0.6);
}
#image-modal .modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(0,0,0,0.5);
    color: white;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    font-size: 20px;
    cursor: pointer;
}