.hero-section {
    padding: 4rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-content {
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.main-heading {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: 1rem;
    animation: fadeInUp 0.8s ease;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-visual {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
    pointer-events: none;
}

.floating-elements {
    position: relative;
    width: 100%;
    height: 100%;
}

.element {
    position: absolute;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    opacity: 0.8;
    animation: floatingMove 8s ease-in-out infinite;
}

.element-1 {
    top: 10%;
    left: 10%;
    background: linear-gradient(135deg, #FF6B6B, #FF8E8E);
    animation-delay: 0s;
}

.element-2 {
    top: 20%;
    right: 15%;
    background: linear-gradient(135deg, #4ECDC4, #7FDBDA);
    animation-delay: 2s;
}

.element-3 {
    bottom: 30%;
    left: 20%;
    background: linear-gradient(135deg, #45B7D1, #73C6DB);
    animation-delay: 4s;
}

.element-4 {
    bottom: 20%;
    right: 10%;
    background: linear-gradient(135deg, #96CEB4, #B8E6C1);
    animation-delay: 6s;
}

@keyframes floatingMove {

    0%,
    100% {
        transform: translate(0, 0) rotate(0deg);
    }

    25% {
        transform: translate(10px, -15px) rotate(90deg);
    }

    50% {
        transform: translate(-5px, -25px) rotate(180deg);
    }

    75% {
        transform: translate(-15px, -10px) rotate(270deg);
    }
}

.file-explorer {
    background: var(--background);
    border-radius: 20px;
    box-shadow: var(--shadow-heavy);
    overflow: hidden;
    animation: fadeInUp 0.6s ease;
}

.explorer-header {
    background: var(--background-alt);
    padding: 2rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.section-title {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.section-title i {
    color: var(--primary-color);
    font-size: 1.3rem;
}

.file-stats {
    margin-top: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.view-options {
    display: flex;
    gap: 0.5rem;
    padding: 0.3rem;
    background: var(--background);
    border-radius: 10px;
    border: 1px solid var(--border-color);
}

.search-container {
    padding: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.search-box {
    position: relative;
    margin-bottom: 1.5rem;
}

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-size: 1.1rem;
}

#search-input {
    width: 100%;
    padding: 1rem 1rem 1rem 3rem;
    border: 2px solid var(--border-color);
    border-radius: 15px;
    font-size: 1rem;
    background: var(--background);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

#search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(46, 139, 87, 0.1);
}

.search-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border: none;
    background: var(--primary-gradient);
    color: white;
    border-radius: 10px;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-btn:hover {
    transform: translateY(-50%) scale(1.05);
}

.search-filters {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
}

.breadcrumb-nav {
    padding: 1rem 2rem;
    background: var(--background-alt);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.breadcrumb-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-grow: 1;
}

.breadcrumb-home {
    color: var(--primary-color);
    font-size: 1.1rem;
}

.breadcrumb-list {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 0.5rem;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.breadcrumb-item+.breadcrumb-item::before {
    content: "/";
    margin: 0 0.5rem;
    color: var(--text-light);
}

.breadcrumb-item a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.breadcrumb-item[aria-current="page"] {
    color: var(--text-primary);
    font-weight: 500;
}

.file-list-container {
    padding: 2rem;
    min-height: 300px;
}

.file-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.file-list li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    margin-bottom: 0.5rem;
    background: var(--background);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all var(--transition-fast);
    cursor: pointer;
    animation: fadeInUp 0.4s ease;
}

.file-list li:hover {
    background: var(--background-alt);
    border-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.loading-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 3rem;
    color: var(--text-secondary);
    font-style: italic;
}

.file-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
}

.file-icon {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: white;
}

.file-icon.folder {
    background: linear-gradient(135deg, #F39C12, #E67E22);
}

.file-icon.pdf {
    background: linear-gradient(135deg, #E74C3C, #C0392B);
}

.file-icon.doc {
    background: linear-gradient(135deg, #3498DB, #2980B9);
}

.file-icon.ppt {
    background: linear-gradient(135deg, #FF7043, #D04423);
}

.file-icon.excel {
    background: linear-gradient(135deg, #43B883, #1D6F42);
}

.file-icon.text {
    background: linear-gradient(135deg, #bdc3c7, #95a5a6);
}

.file-icon.image {
    background: linear-gradient(135deg, #9B59B6, #8E44AD);
}

.file-icon.video {
    background: linear-gradient(135deg, #1ABC9C, #16A085);
}

.file-icon.default {
    background: linear-gradient(135deg, #95A5A6, #7F8C8D);
}

.file-info {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.file-name {
    font-weight: 500;
    color: var(--text-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.file-name:hover {
    color: var(--primary-color);
}

.file-meta {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.file-actions {
    display: flex;
    gap: 0.5rem;
}

.upload-section {
    padding: 2rem;
    text-align: center;
    border-top: 1px solid var(--border-color);
    background: var(--background-alt);
}

.page-content .content-box {
    background: var(--background);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow-medium);
    margin-top: 2rem;
}

.page-content h2 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-light);
    display: inline-block;
}

.page-content ul,
.page-content ol {
    margin-left: 1.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.page-content li {
    margin-bottom: 0.8rem;
}

@media (max-width: 768px) {
    .hero-section {
        padding: 2rem 1rem;
    }

    .explorer-header {
        padding: 1.5rem;
        flex-direction: column;
        align-items: stretch;
    }

    .search-container,
    .breadcrumb-nav,
    .file-list-container,
    .upload-section {
        padding: 1.5rem;
    }

    .file-item {
        flex-direction: column;
    }

    .file-info {
        align-items: center;
    }

    .file-list li {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }

    .file-actions {
        justify-content: center;
        flex-wrap: wrap;
    }

    .floating-elements {
        display: none;
    }

    .search-filters {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .main-heading {
        font-size: 2rem;
    }

    .hero-description {
        font-size: 1rem;
    }
}

.rule-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    margin-top: 2rem;
    padding: 1.5rem;
    background: var(--background-alt);
    border-radius: 12px;
    border-left: 5px solid var(--primary-color);
    transition: all var(--transition-fast);
}

.rule-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.rule-icon {
    font-size: 1.8rem;
    color: var(--primary-color);
    padding-top: 0.2rem;
}

.rule-content h3 {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.rule-content p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.rule-content code {
    background: var(--background-dark);
    padding: 0.2rem 0.5rem;
    border-radius: 5px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--accent-color);
}

.step-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    margin-top: 2rem;
    position: relative;
    padding-left: 3.5rem;
}

.step-number {
    position: absolute;
    left: 0;
    top: 0;
    width: 40px;
    height: 40px;
    background: var(--primary-gradient);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 700;
    box-shadow: var(--shadow-light);
}

.step-content {
    padding: 1rem;
    background: var(--background-alt);
    border-radius: 12px;
    flex: 1;
    border: 1px solid var(--border-color);
}

.step-content h3 {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.step-content h3 i {
    color: var(--primary-color);
}

.step-content p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.step-content a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.step-content a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.list-actions {
    display: flex;
    gap: 0.8rem;
}

#selection-mode-btn,
#select-all-btn {
    padding: 0.6rem 1rem;
    font-size: 0.9rem;
}

#selection-mode-btn.active {
    background: var(--primary-dark);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

.selection-toolbar {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(200%);
    width: calc(100% - 4rem);
    max-width: 600px;
    background: linear-gradient(135deg, #4A5568, #2D3748);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2), 0 6px 10px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 1000;
    transition: transform 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.selection-toolbar.visible {
    transform: translateX(-50%) translateY(0);
}

.selection-info {
    font-weight: 500;
    font-size: 0.9rem;
}

.selection-actions {
    display: flex;
    gap: 0.8rem;
}

.selection-actions .primary-btn,
.selection-actions .secondary-btn,
.selection-actions .danger-btn {
    padding: 0.6rem 1.2rem;
    font-size: 0.9rem;
    border-radius: 10px;
}

.file-list-item .file-checkbox {
    appearance: none;
    -webkit-appearance: none;
    width: 22px;
    height: 22px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    position: relative;
    transition: all var(--transition-fast);
    flex-shrink: 0;
    margin-right: 0;
    transform: scale(0);
    opacity: 0;
    display: block;
    transition: transform 0.3s ease, opacity 0.3s ease, margin-right 0.3s ease, top 0.3s ease, left 0.3s ease;
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
}

.file-list.selection-mode .file-checkbox {
    transform: scale(1);
    opacity: 1;
}

.file-list-container.grid-view .file-list.selection-mode .file-list-item .file-checkbox {
    top: 0.75rem;
    left: 0.75rem;
    margin-right: 0;
}

.file-list:not(.file-list-container.grid-view *) .file-list.selection-mode .file-checkbox {
    position: static;
    margin-right: 1rem;
}

.file-list-item .file-checkbox:hover {
    border-color: var(--primary-color);
}

.file-list-item .file-checkbox:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.file-list-item .file-checkbox:checked::before {
    content: '\f00c';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    color: white;
    font-size: 12px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.file-list.selection-mode .file-item {
    cursor: default;
}

.file-list-item.selected {
    background: var(--primary-light-trans);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px var(--primary-light-trans);
}