:root {
    --primary-color: #4285f4;
    --secondary-color: #34a853;
    --accent-color: #ea4335;
    --dark-color: #003366;
    --light-color: #f8f9fa;
    --text-color: #333;
    --text-light: #666;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f7fa;
    color: var(--text-color);
    line-height: 1.6;
}

nav {
    background-color: var(--dark-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.nav-links {
    display: flex;
    flex: 1;
    justify-content: flex-end;
}

.nav-links #loginLink,
.nav-links #logoutLink {
    margin-left: auto;
}

nav a {
    display: flex;
    align-items: center;
    color: white;
    text-align: center;
    padding: 18px 20px;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
}

nav a:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

nav a.active {
    background-color: var(--primary-color);
    font-weight: 500;
}

nav a.active:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 3px;
    background-color: white;
}

nav a i {
    margin-right: 8px;
    font-size: 0.9em;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 10px;
}

.header {
    text-align: center;
    padding: 40px 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    margin-bottom: 30px;
}

.header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    font-weight: 600;
}

.header p {
    font-size: 1.1rem;
    opacity: 0.9;
    max-width: 700px;
    margin: 0 auto;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.file-list {
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    overflow: hidden;
    margin-bottom: 40px;
}

.file-list-header {
    background-color: var(--primary-color);
    color: white;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.file-list-header h2 {
    font-size: 1.3rem;
    font-weight: 500;
    margin-right: 10px;
}

.folder-select {
    padding: 8px 12px;
    border-radius: 5px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 0.9rem;
    cursor: pointer;
    min-width: 120px;
}

.folder-select:hover {
    background: rgba(255, 255, 255, 0.2);
}

.folder-select option {
    background: white;
    color: var(--text-color);
    padding: 8px;
}

.search-container {
    flex: 1;
    min-width: 200px;
    max-width: 300px;
}

.search-box {
    width: 100%;
    padding: 8px 15px;
    border-radius: 20px;
    border: none;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    font-size: 0.9rem;
}

.search-box::placeholder {
    color: rgba(255, 255, 255, 0.7);
}
.search-box:focus {
    outline: none;
    border-color: white;
}

.view-toggle {
    display: flex;
    gap: 5px;
}

.view-toggle button {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: white;
    padding: 8px 12px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.view-toggle button:hover {
    background: rgba(255, 255, 255, 0.2);
}

.view-toggle button.active {
    background: rgba(255, 255, 255, 0.3);
}

.file-count {
    background-color: rgba(255, 255, 255, 0.2);
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.9rem;
}

.file-list-description {
    display: flex;
    padding: 12px 20px;
    background-color: #f8f9fa;
    border-bottom: 1px solid #eee;
    font-weight: 500;
    align-items: center;
}

.file-name {
    flex: 3;
    padding-right: 15px;
}

.file-origin, .file-date, .file-size {
    flex: 2;
    padding-right: 15px;
}

.file-view, .file-download-table {
    flex: 1;
    text-align: center;
}

.file-item {
    display: flex;
    padding: 12px 20px;
    border-bottom: 1px solid #eee;
    transition: background-color 0.2s ease;
    align-items: center;
}

.file-item:last-child {
    border-bottom: none;
}

.file-item:hover {
    background-color: #f9f9f9;
}

.file-icon {
    margin-right: 15px;
    color: var(--primary-color);
    font-size: 1.2rem;
    width: 24px;
    text-align: center;
    flex-shrink: 0;
}

.file-name {
    flex: 3;
    font-weight: 500;
    color: var(--text-color);
    display: flex;
    align-items: center;
}

.file-origin, .file-date, .file-size {
    flex: 2;
    color: var(--text-light);
    font-size: 0.9rem;
}

.file-view, .file-download-table {
    flex: 1;
    text-align: center;
}

.file-link {
    color: var(--primary-color);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 12px;
    border-radius: 5px;
    transition: all 0.2s ease;
    width: 80px;
    margin: 0 auto;
}

.file-link:hover {
    background-color: rgba(66, 133, 244, 0.1);
}

.file-link i {
    margin-left: 6px;
    font-size: 0.8em;
}

.file-download {
    color: var(--secondary-color);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 12px;
    border-radius: 5px;
    transition: all 0.2s ease;
    width: 100px;
    margin: 0 auto;
}

.file-download:hover {
    background-color: rgba(52, 168, 83, 0.1);
}

.file-download i {
    margin-left: 6px;
    font-size: 0.8em;
}

.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-light);
}

.empty-state i {
    font-size: 3rem;
    color: #ddd;
    margin-bottom: 20px;
}

.loading {
    padding: 30px;
    text-align: center;
    color: var(--text-light);
}

.spinner {
    border: 4px solid rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    border-top: 4px solid var(--primary-color);
    width: 30px;
    height: 30px;
    animation: spin 1s linear infinite;
    margin: 0 auto 15px;
}

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

.grid-view {
    display: none;
}

.grid-view.active {
    display: block;
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
    padding: 20px;
}

.grid-item {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s;
}

.grid-item:hover {
    transform: translateY(-5px);
}

.grid-item-icon {
    padding: 20px;
    text-align: center;
    font-size: 2.5rem;
    color: var(--primary-color);
    background: #f5f7fa;
}

.grid-item-name {
    padding: 12px;
    text-align: center;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.grid-item-actions {
    display: flex;
    justify-content: center;
    padding: 10px;
    border-top: 1px solid #eee;
    gap: 10px;
}

.grid-view .file-link,
.grid-view .file-download {
    width: auto;
    padding: 5px 10px;
    font-size: 0.8rem;
}

.download-prompt {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 1000;
    min-width: 300px;
    max-width: 400px;
    padding: 0;
    animation: slideIn 0.3s ease;
}

.download-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 15px;
    border-bottom: 1px solid #eee;
    background: var(--primary-color);
    color: white;
    border-radius: 8px 8px 0 0;
}

.download-title {
    font-weight: 500;
    font-size: 1rem;
}

.download-buttons {
    display: flex;
    gap: 10px;
}

.download-button {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.download-button:hover {
    background: rgba(255, 255, 255, 0.2);
}

.download-content {
    padding: 15px;
    max-height: 300px;
    overflow-y: auto;
}

.progress-bar {
    width: 100%;
    height: 4px;
    background: #eee;
    border-radius: 2px;
    margin: 10px 0;
    overflow: hidden;
}

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

.download-details {
    margin-top: 10px;
    font-size: 0.9rem;
    color: var(--text-light);
}

.file-progress {
    display: flex;
    align-items: center;
    margin: 5px 0;
    padding: 5px;
    border-radius: 4px;
    background: #f5f5f5;
}

.file-progress i {
    margin-right: 8px;
    color: var(--primary-color);
}

.file-progress-name {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-progress-percent {
    margin-left: 8px;
    min-width: 45px;
    text-align: right;
}

.minimized {
    min-width: 200px;
    height: auto;
    border-radius: 8px;
}

.minimized .download-content {
    display: none;
}

.minimized .download-header {
    border-radius: 8px;
    border-bottom: none;
}

.minimized .minimize-btn i {
    transform: rotate(-180deg);
}

@keyframes slideIn {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.download-queue {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 15px;
}

.download-item {
    background: #f8f9fa;
    border-radius: 6px;
    padding: 12px;
    position: relative;
}

.download-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.download-item-name {
    font-weight: 500;
    flex: 1;
    margin-right: 10px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.download-item-progress {
    background: #eee;
    height: 4px;
    border-radius: 2px;
    overflow: hidden;
}

.download-item-progress-bar {
    height: 100%;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.download-item-status {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-top: 4px;
}

.download-item-cancel {
    background: none;
    border: none;
    color: var(--text-light);
    padding: 4px;
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.download-item-cancel:hover {
    background: rgba(0, 0, 0, 0.05);
    color: var(--accent-color);
}

.download-cancel-all {
    background: none;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-right: 10px;
}

.download-cancel-all:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* ส่วนที่แก้ไขสำหรับ Mobile View */
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }
    
    .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
    }
    
    .nav-links #loginLink,
    .nav-links #logoutLink {
        margin-left: 0;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    nav a {
        padding: 12px;
        justify-content: center;
    }
    
    .nav-container {
        flex-direction: column;
        padding: 0;
    }

    .header h1 {
        font-size: 2rem;
    }

    .file-list-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .header-left {
        width: 100%;
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        align-items: center;
    }

    .header-left h2 {
        width: 100%;
    }

    .folder-select {
        flex: 1;
        min-width: 0;
        margin: 0;
    }

    /* Make the options container flex for mobile */
    .select-container {
        display: flex;
        gap: 10px;
        width: 100%;
    }

    /* Ensure proper spacing and sizing */
    #folderSelect,
    #typeSelect {
        min-width: 0;
        width: auto;
        flex: 1;
    }

    .search-container {
        width: 100%;
        max-width: none;
    }

    .file-list-description {
        display: none;
    }

    .file-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
        padding: 15px;
        position: relative;
    }

    .file-name,
    .file-origin,
    .file-date,
    .file-size {
        width: 100%;
        text-align: left;
        padding: 2px 0;
        font-size: 0.9rem;
    }

    .file-view,
    .file-download-table {
        position: absolute;
        bottom: 15px;
        right: 15px;
        width: auto;
        margin: 0;
        padding: 0;
    }

    .file-link,
    .file-download {
        margin: 0;
        padding: 5px 10px;
        font-size: 0.8rem;
        width: auto;
    }

    .file-icon {
        margin-right: 10px;
        font-size: 1rem;
    }

    /* เพิ่มสไตล์สำหรับข้อมูลแต่ละประเภท */
    .file-origin::before {
        content: "Folder: ";
        font-weight: bold;
        color: var(--text-color);
    }

    .file-date::before {
        content: "Date: ";
        font-weight: bold;
        color: var(--text-color);
    }

    .file-size::before {
        content: "Size: ";
        font-weight: bold;
        color: var(--text-color);
    }

    /* สไตล์สำหรับ Action buttons */
    .file-actions-mobile {
        display: flex;
        gap: 8px;
        margin-top: 10px;
        width: 100%;
        justify-content: flex-end;
    }

    .file-item {
        display: flex;
        flex-direction: column;
        padding: 15px;
        border-bottom: 1px solid #eee;
        gap: 8px;
    }

    .file-name {
        width: 100%;
        font-size: 1rem;
        font-weight: 500;
        margin-bottom: 5px;
    }

    .file-origin,
    .file-date,
    .file-size {
        width: 100%;
        font-size: 0.85rem;
        color: var(--text-light);
        display: flex;
        align-items: center;
    }

    .file-icon {
        margin-right: 10px;
        font-size: 1rem;
    }

    /* Labels for mobile view */
    .file-origin::before {
        content: "Folder: ";
        font-weight: 500;
        width: 80px;
        color: var(--text-color);
    }

    .file-date::before {
        content: "Date: ";
        font-weight: 500;
        width: 80px;
        color: var(--text-color);
    }

    .file-size::before {
        content: "Size: ";
        font-weight: 500;
        width: 80px;
        color: var(--text-color);
    }

    .file-actions-mobile {
        display: flex;
        justify-content: flex-end;
        gap: 10px;
        margin-top: 10px;
        padding-top: 10px;
        border-top: 1px solid #eee;
    }

    .file-view,
    .file-download-table {
        width: auto;
        text-align: center;
    }

    .file-link,
    .file-download {
        margin: 0;
        padding: 6px 12px;
        font-size: 0.9rem;
        width: auto;
        min-width: 90px;
    }

    .file-item {
        display: flex;
        flex-direction: column;
        padding: 15px;
        border-bottom: 1px solid #eee;
        gap: 12px;
    }

    .file-name,
    .file-origin,
    .file-date,
    .file-size {
        display: flex;
        align-items: flex-start;
        width: 100%;
    }

    .file-name::before,
    .file-origin::before,
    .file-date::before,
    .file-size::before {
        content: attr(data-label);
        min-width: 100px;
        font-weight: 500;
        color: var(--text-color);
    }

    .file-actions-mobile {
        display: flex;
        justify-content: space-between;
        gap: 10px;
        margin-top: 10px;
        padding-top: 10px;
        border-top: 1px solid #eee;
    }

    .file-link,
    .file-download {
        min-width: 120px;
        justify-content: center;
    }

    .download-prompt {
        bottom: 10px;
        right: 10px;
        left: 10px;
        min-width: unset;
        max-width: unset;
        width: auto;
    }

    .download-header {
        padding: 8px 12px;
    }

    .download-title {
        font-size: 0.9rem;
    }

    .download-content {
        padding: 12px;
        max-height: 250px;
    }

    .minimized {
        width: auto;
        min-width: unset;
    }

    .file-progress {
        font-size: 0.85rem;
    }

    .download-prompt.minimized {
        max-width: unset;
        width: auto;
    }
}

@media (max-width: 480px) {
    .header {
        padding: 30px 15px;
    }
    
    .header h1 {
        font-size: 1.8rem;
    }
    
    .header p {
        font-size: 1rem;
    }
    
    .file-list {
        border-radius: 0;
    }
}