:root {
    --primary-bg: #0A0F2A;
    --card-bg: #1C2141;
    --accent-color: #DFFF00;
    --text-primary: #FFFFFF;
    --text-secondary: #a9a9b3;
    --input-bg: #0E1225;
    --success-color: #27ae60;
    --danger-color: #e74c3c;
    --border-color: #33395b;
}

[data-theme="light"] {
    --primary-bg: #f5f5f5;
    --card-bg: #ffffff;
    --accent-color: #6200ee;
    --text-primary: #000000;
    --text-secondary: #555;
    --input-bg: #f0f0f0;
    --border-color: #ddd;
}

body {
    background-color: var(--primary-bg);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    margin: 0;
    padding: 1rem;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 1rem;
}

h1,
h2 {
    color: var(--accent-color);
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
}

.tab-button {
    padding: 1rem 1.5rem;
    cursor: pointer;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1rem;
    position: relative;
}

.tab-button.active {
    color: var(--accent-color);
}

.tab-button.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--accent-color);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.input-field,
textarea,
select {
    width: 100%;
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 12px;
    border-radius: 8px;
    box-sizing: border-box;
    font-size: 1rem;
}

.input-field[readonly] {
    background-color: #2a2f4a;
    cursor: not-allowed;
}

p {
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.action-button {
    background: linear-gradient(90deg, #FF416C, #FFDE00);
    color: #000;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
}

.action-button:disabled {
    cursor: not-allowed;
    background: #555;
}

.spinner {
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid #fff;
    border-radius: 50%;
    width: 16px;
    height: 16px;
    animation: spin 1s linear infinite;
    margin-left: 0.5rem;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.message {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    display: none;
    text-align: center;
}

.message.show {
    display: block;
}

.message.success {
    background-color: rgba(39, 174, 96, 0.2);
    color: var(--success-color);
}

.message.error {
    background-color: rgba(231, 76, 60, 0.2);
    color: var(--danger-color);
}

.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    max-height: 150px;
    overflow-y: auto;
    background: var(--input-bg);
    padding: 10px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #1a2035;
    padding: 6px 12px;
    border-radius: 50px;
    font-size: 0.85rem;
    cursor: pointer;
    user-select: none;
}

.checkbox-label:has(input:checked) {
    background-color: rgba(223, 255, 0, 0.15);
    border-color: var(--accent-color);
    color: var(--accent-color);
}

#browse-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1rem;
}

.browse-card {
    background: var(--card-bg);
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
}

.browse-card img {
    width: 100%;
    aspect-ratio: 2/3;
    object-fit: cover;
}

.browse-card-title {
    padding: 0.75rem;
    font-size: 0.9rem;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

#browse-pagination {
    display: flex;
    justify-content: center;
    margin-top: 2rem;
    gap: 0.5rem;
}

pre[class*="language-"] {
    background: var(--code-bg-color) !important;
    border-radius: 8px;
    padding: 1rem;
    overflow-x: auto;
    white-space: pre-wrap;
}

.btn-secondary {
    background: #333;
    color: white;
}

/* --- MODAL STYLES --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    z-index: 2000;
    display: none;
    /* Hidden by default */
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(5px);
}

.modal-content {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    width: 90%;
    max-width: 400px;
    text-align: center;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    animation: popupFadeIn 0.3s ease-out;
}

@keyframes popupFadeIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.modal-content h3 {
    color: var(--accent-color);
    margin-top: 0;
}

.modal-content p {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.modal-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
}

/* --- MOBILE RESPONSIVE STYLES --- */
@media (max-width: 768px) {
    .container {
        padding: 0.5rem;
    }
    h1 {
        font-size: 1.8rem;
    }
    .tabs {
        font-size: 0.9rem;
    }
    .tab-button {
        padding: 0.75rem 0.5rem;
        flex-grow: 1;
        text-align: center;
    }
    /* --- BROWSE GRID - UPDATED --- */
    #browse-grid {
        /* This creates a 3-column grid on mobile */
        grid-template-columns: repeat(3, 1fr);
        gap: 0.5rem;
        /* Tighter spacing for mobile */
    }
    .browse-card-title {
        font-size: 0.8rem;
        padding: 0.5rem;
    }
    .browse-controls {
        flex-direction: column;
        align-items: stretch;
    }
    .result-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
}

/* --- ADDED FOR VERY SMALL PHONES --- */
@media (max-width: 480px) {
    #browse-grid {
        /* Switch to a 2-column grid on very small screens */
        grid-template-columns: repeat(2, 1fr);
    }
}