/* css/style.css */

/* --- Google Font Import --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;700&display=swap');

/* --- CSS Variables --- */
:root {
    --bg-color: #1a1d24;
    --header-bg: #21242c;
    --card-bg: #282c34;
    --primary-color: #00bcd4; /* Teal */
    --primary-hover: #0097a7;
    --text-color: #d1d5db;
    --text-muted: #8a92a1;
    --border-color: #3a404d;
    --border-radius: 8px;
    --shadow-color: rgba(0, 0, 0, 0.2);
    }

/* --- General Styles --- */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-size: 16px;
    line-height: 1.6;
}

.page-container {
}

/* --- Main Header --- */
.main-header {
    background-color: var(--header-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 15px 20px;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 20px;
    max-width: 1400px;
    margin: 0 auto;
}

.header-left, .header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.header-left {
    flex-wrap: wrap;
}

.room-title {
    font-size: 1em;
    color: var(--text-muted);
    margin: 0;
}

.room-token {
    font-size: 1.5em;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0;
}

.share-link {
    display: flex;
}

.share-link input {
    width: 250px;
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.share-link button {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-info p {
    margin: 0;
    white-space: nowrap;
}

#nick-form {
    display: flex;
    align-items: center;
    gap: 5px;
}

#nick-form label {
    margin: 0;
    font-weight: bold;
}

.nick-edit {
    display: flex;
}

.nick-edit input {
    width: 150px;
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.nick-edit button {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
    padding: 8px 12px;
}

#header-toggle-btn {
    display: none;
}

/* --- Main Content --- */
.main-content {
    padding: 40px;
    max-width: 1400px;
    margin: 0 auto;
}

/* --- Drop Zone, Files Header, etc. (styles remain similar) --- */

.drop-zone {
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
    padding: 40px;
    text-align: center;
    margin-bottom: 40px;
    background-color: var(--card-bg);
    transition: background-color 0.3s, border-color 0.3s;
    cursor: pointer;
}

.drop-zone:hover, .drop-zone.drag-over {
    background-color: #3a404d;
    border-color: var(--primary-color);
}

.drop-zone-icon svg {
    color: var(--text-muted);
    margin-bottom: 15px;
    transition: color 0.3s;
}

.drop-zone:hover .drop-zone-icon svg {
    color: var(--primary-color);
}

.browse-link {
    color: var(--primary-color);
    font-weight: 500;
    cursor: pointer;
}

.files-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding: 10px;
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
}

.files-header-title {
    display: flex;
    align-items: center;
    gap: 15px;
}

.files-header h2 {
    margin: 0;
    font-size: 1.2em;
}

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

/* --- Buttons --- */
button, input[type="text"] {
    border: 1px solid var(--border-color);
    outline: none;
    border-radius: var(--border-radius);
    padding: 10px 15px;
    font-size: 1em;
    background-color: #3a404d;
    color: var(--text-color);
    transition: background-color 0.3s, border-color 0.3s;
}

input[type="text"]:focus {
    border-color: var(--primary-color);
}

button {
    background-color: var(--primary-color);
    color: #fff;
    cursor: pointer;
    font-weight: 500;
}

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

.icon-btn {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-btn:hover {
    color: var(--primary-color);
    border-color: var(--primary-color);
    background-color: var(--card-bg);
}

.view-toggle {
    display: flex;
    gap: 10px;
}

.view-toggle .icon-btn.active {
    color: var(--primary-color);
    border-color: var(--primary-color);
    background-color: rgba(0, 188, 212, 0.1);
}


/* --- File List & Grid --- */
.file-list, .file-grid {
    list-style: none;
    padding: 0;
    margin: 0;
}

.file-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 20px;
}

.file-list li, .file-grid .file-item {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    padding: 15px;
    display: flex;
    align-items: center;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.file-list li:hover, .file-grid .file-item:hover {
    border-color: var(--primary-color);
    box-shadow: 0 4px 15px var(--shadow-color);
}

/* List View Specifics */
.file-list li {
    justify-content: space-between;
    margin-bottom: 15px;
}

.file-list .file-name {
    flex-grow: 1;
    font-weight: 500;
}

.file-list .file-info {
    font-size: 0.85em;
    color: var(--text-muted);
    margin: 0 20px;
}

.file-list .file-actions {
    display: flex;
    gap: 10px;
}

.file-list .file-actions a, .file-list .file-actions button {
    font-size: 0.9em;
    padding: 5px 10px;
    text-decoration: none;
    border-radius: 5px;
}

.delete-btn {
    background-color: #c9302c;
}
.delete-btn:hover {
    background-color: #ac2925;
}

/* Grid View Specifics */
.file-grid .file-item {
    flex-direction: column;
    text-align: center;
    position: relative;
}

.file-item .thumbnail {
    width: 100%;
    height: 100px;
    object-fit: cover;
    border-radius: 5px;
    margin-bottom: 10px;
    cursor: pointer;
}

.file-item .file-icon {
    font-size: 4em;
    line-height: 100px;
    height: 100px;
    color: var(--text-muted);
}

.file-name-grid {
    font-size: 0.9em;
    font-weight: 500;
    word-break: break-all;
    margin-top: 10px;
}

.grid-actions {
    margin-top: 15px;
    display: flex;
    justify-content: center;
    gap: 10px;
}

/* --- Modals --- */
.modal, .preview-modal {
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    text-align: center;
    max-width: 400px;
    box-shadow: 0 5px 20px var(--shadow-color);
}

.modal-buttons {
    margin-top: 20px;
    display: flex;
    justify-content: center;
    gap: 15px;
}

.preview-content {
    display: block;
    margin: auto;
    max-width: 85%;
    max-height: 85%;
    border-radius: var(--border-radius);
}

.close-preview {
    position: absolute;
    top: 20px;
    right: 35px;
    color: #fff;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s;
}
.close-preview:hover {
    color: var(--primary-color);
}

/* --- Notification --- */
.notification {
    position: fixed;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    padding: 15px 25px;
    border-radius: var(--border-radius);
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    z-index: 1001;
    transition: top 0.5s ease-in-out;
    font-weight: 500;
    box-shadow: 0 5px 15px var(--shadow-color);
}

.notification.show {
    top: 20px;
}

.notification.error {
    background-color: #c9302c;
    color: #fff;
    border-color: #ac2925;
}

/* --- Home Page Styles --- */
.home-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.home-card {
    width: 100%;
    max-width: 800px;
    background-color: var(--header-bg);
    border-radius: var(--border-radius);
    padding: 50px;
    border: 1px solid var(--border-color);
    text-align: center;
}

.home-header h1 {
    font-size: 3em;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0;
}

.home-header .tagline {
    font-size: 1.2em;
    color: var(--text-muted);
    margin: 10px 0 40px 0;
}

.home-actions {
    display: flex;
    gap: 40px;
    margin-bottom: 40px;
}

.action-box {
    flex: 1;
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.action-box h2 {
    margin-top: 0;
}

.action-box p {
    color: var(--text-muted);
    min-height: 48px; /* To keep boxes aligned */
}

.join-form {
    display: flex;
}

.join-form input {
    flex-grow: 1;
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
    text-align: center;
}

.join-form button {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

.room-created-message {
    margin-top: 20px;
    padding: 15px;
    background-color: rgba(0, 188, 212, 0.1);
    border: 1px solid var(--primary-color);
    border-radius: var(--border-radius);
    color: var(--text-color);
}
.room-created-message p {
    margin: 5px 0;
    color: var(--text-color);
}
.room-created-message a {
    color: var(--primary-color);
    font-weight: bold;
}

.user-profile-box {
    margin-top: 30px;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

.user-profile-box #nick-form {
    max-width: 400px;
    margin: 0 auto 15px auto;
}

.user-profile-box .user-code {
    font-size: 0.9em;
    color: var(--text-muted);
}

.user-profile-box .user-code span {
    font-family: monospace;
    background-color: var(--card-bg);
    padding: 3px 6px;
    border-radius: 4px;
}

/* --- Hidden Class --- */
.hidden {
    display: none !important;
}

/* --- Breadcrumb --- */
.breadcrumb {
    margin-bottom: 20px;
    font-size: 1.1em;
}

.breadcrumb a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s;
}

.breadcrumb a:hover {
    color: var(--primary-color);
}

.breadcrumb .active {
    color: var(--text-color);
    font-weight: 500;
}

.breadcrumb span {
    margin: 0 10px;
    color: var(--text-muted);
}

/* --- Folder Styles --- */
.file-list .folder-item .file-name,
.file-grid .folder-item .file-thumbnail {
    cursor: pointer;
}

.file-list .folder-item .file-name:hover span {
    text-decoration: underline;
}

.file-list .file-name svg {
    margin-right: 10px;
    color: var(--primary-color);
    flex-shrink: 0;
}

.file-grid .folder-icon {
    font-size: 4em;
    line-height: 100px;
    height: 100px;
    color: var(--primary-color);
}

/* --- Create Folder Modal --- */
#create-folder-form input {
    width: 100%;
    margin-bottom: 15px;
}

#create-folder-form .modal-buttons button[type="button"] {
    background-color: var(--card-bg);
    color: var(--text-color);
}

#create-folder-form .modal-buttons button[type="button"]:hover {
    background-color: #3a404d;
}


/* --- Selection Styles --- */
.select-checkbox {
    width: 18px;
    height: 18px;
    margin-right: 15px;
    cursor: pointer;
}

.file-list li.selected,
.file-grid .file-item.selected {
    background-color: rgba(0, 188, 212, 0.1);
    border-color: var(--primary-color);
}

.file-grid .file-item .select-checkbox {
    position: absolute;
    top: 10px;
    left: 10px;
    z-index: 1;
}

#delete-selected-btn {
    background-color: #c9302c;
}

#delete-selected-btn:hover {
    background-color: #ac2925;
}

/* --- Responsive Styles --- */
@media (max-width: 1200px) {
    .share-link input { width: 200px; }
    .nick-edit input { width: 120px; }
}

@media (max-width: 992px) {
    .header-content {
        flex-wrap: wrap;
    }
    .header-right {
        display: none;
        width: 100%;
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
        padding: 15px 0;
    }
    .header-right.show {
        display: flex;
    }
    #header-toggle-btn {
        display: flex;
        position: absolute;
        top: 15px;
        right: 20px;
    }
    .user-info, #nick-form {
        flex-direction: column;
        align-items: flex-start;
        width: 100%;
        gap: 10px;
    }
    .nick-edit {
        width: 100%;
    }
    .nick-edit input {
        flex-grow: 1;
    }
}

@media (max-width: 768px) {
    .main-content {
        padding: 20px;
    }
    .file-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 15px;
    }
    .home-actions {
        flex-direction: column;
        gap: 20px;
    }
    .home-card {
        padding: 30px;
    }
    .home-header h1 {
        font-size: 2.5em;
    }
}

@media (max-width: 576px) {
    body {
        font-size: 14px;
    }
    .main-content {
        padding: 15px;
    }
    .header-left {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    .share-link {
        width: 100%;
    }
    .share-link input {
        flex-grow: 1;
    }
    .files-header {
        flex-wrap: wrap;
        gap: 10px;
    }
    .files-header-title {
        width: 100%;
        justify-content: space-between;
    }
    .file-list .file-info {
        display: none;
    }
    .file-list li {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    .file-list .file-actions {
        width: 100%;
        justify-content: flex-end;
    }
    .home-card {
        padding: 20px;
    }
    .home-header h1 {
        font-size: 2em;
    }
    .home-header .tagline {
        font-size: 1em;
    }
}