:root {
    --bs-body-bg: #f8f9fa;
    --primary-color: #4361ee;
    --secondary-color: #3f37c9;
    --success-color: #2ecc71;
    --danger-color: #e74c3c;
    --light-color: #ffffff;
    --dark-color: #343a40;
    --card-bg: #ffffff;
    --text-color: #343a40;
    --text-muted: #6c757d;
    --border-color: #dee2e6;
    --accent-color: #7209b7;
    --gradient-start: #4361ee;
    --gradient-end: #3a0ca3;
}

.file-actions {
    display: flex;
    gap: 8px;
}

.file-actions button {
    padding: 6px 14px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08);
}

.file-actions .view-btn {
    background-color: #e0eaff;
    color: var(--primary-color);
}

.file-actions .view-btn:hover {
    background-color: #c7dfff;
}

.file-actions .download-btn {
    background-color: #d9fdd3;
    color: #1a7f37;
}

.file-actions .download-btn:hover {
    background-color: #bdf5b6;
}

.file-actions .remove-btn {
    background-color: #ffe5e5;
    color: var(--danger-color);
}

.file-actions .remove-btn:hover {
    background-color: #ffc2c2;
}

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background-color: var(--bs-body-bg);
    color: var(--text-color);
}

main {
    flex: 1;
}

.navbar {
    background: linear-gradient(135deg, #4a89dc, #5e72e4) !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    padding: 1rem 0;
    position: relative;
    z-index: 100;
}

.navbar-brand {
    font-weight: 700;
    letter-spacing: 0.5px;
}

.navbar-brand i {
    color: #ffffff;
    margin-right: 8px;
}

.navbar .nav-link.login-link {
    color: white;
    margin-left: auto;
    padding: 10px 20px;
    border-radius: 20px;
}

.navbar .nav-link.login-link:hover {
    background-color: var(--secondary-color);
    color: white;
}

.navbar .nav-link:hover {
    opacity: 0.8;
}

.card {
    border: 1px solid var(--border-color);
    border-radius: 15px;
    background-color: var(--card-bg);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    margin-bottom: 2rem;
    overflow: hidden;
    position: relative;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    opacity: 0.8;
}

.card-body {
    padding: 1.5rem;
}

.btn {
    border-radius: 25px;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
}

.btn-outline-primary {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    color: white;
}

.btn-outline-success {
    color: var(--success-color);
    border-color: var(--success-color);
}

.btn-outline-success:hover {
    background-color: var(--success-color);
    color: white;
}

.btn-outline-danger {
    color: var(--danger-color);
    border-color: var(--danger-color);
}

.btn-outline-danger:hover {
    background-color: var(--danger-color);
    color: white;
}

.navbar-nav.align-items-center {
    margin-left: auto;
}

.form-control {
    border-radius: 25px;
    box-shadow: none;
    padding: 0.6rem 1.2rem;
    background-color: var(--light-color);
    border-color: var(--border-color);
    color: var(--text-color);
}

.form-control:focus {
    box-shadow: 0 0 0 0.25rem rgba(67, 97, 238, 0.25);
    border-color: var(--primary-color);
    background-color: var(--light-color);
}

.navbar .form-control {
    margin-left: 10px;
    max-width: 250px;
}

.file-item {
    background-color: var(--light-color);
    border-radius: 10px;
    padding: 15px;
    margin-bottom: 15px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    border-left: 3px solid transparent;
    border: 1px solid var(--border-color);
}

.file-item:hover {
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border-left: 3px solid var(--primary-color);
    background-color: rgba(240, 242, 245, 0.9);
}

.file-info {
    flex: 1;
    min-width: 0; /* Ensures text truncation works */
}

.file-name {
    font-weight: 500;
    color: var(--text-color);
    display: inline-block;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-name-container {
    margin-bottom: 5px;
}

.file-size {
    color: var(--text-muted);
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
}

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

.search-highlight {
    background-color: rgba(67, 97, 238, 0.2);
    border-radius: 3px;
    padding: 0 3px;
    font-weight: bold;
    color: var(--primary-color);
}

.section-title {
    position: relative;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    text-align: center;
    color: var(--dark-color);
    font-weight: 600;
    letter-spacing: 0.5px;
}

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

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 3px;
}

@media (max-width: 576px) {
    .navbar .form-control {
        max-width: 100%;
        margin-left: 0;
        margin-bottom: 0.5rem;
    }

    .navbar .btn {
        width: 100%;
    }

    .navbar .d-flex {
        flex-direction: column;
        align-items: stretch;
    }
}

footer {
    background-color: #f1f3f9;
    color: #6c757d;
    padding: 2rem 0;
    margin-top: 3rem;
    border-top: 1px solid var(--border-color);
}

footer a {
    color: var(--primary-color);
    text-decoration: none;
}

footer a:hover {
    color: var(--secondary-color);
    text-decoration: none;
}

.alert {
    border-radius: 10px;
    padding: 1rem;
}

.pagination-controls {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 1rem;
}

.pagination-inner {
    margin-bottom: 0.5rem;
}

/* Animations and transitions */
.file-item {
    animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Search highlight */
.search-highlight {
    background-color: rgba(67, 97, 238, 0.2);
    border-radius: 3px;
    padding: 0 3px;
    color: var(--primary-color);
    font-weight: 500;
}

/* Empty state and loading animations */
#loading .spinner-border {
    animation: spin 1s linear infinite, pulse 1s ease-in-out infinite alternate;
}

@keyframes pulse {
    from { opacity: 0.6; transform: scale(0.98); }
    to { opacity: 1; transform: scale(1.02); }
}

#noFiles i {
    animation: bounce 2s ease infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-20px); }
    60% { transform: translateY(-10px); }
}

/* Search status styling */
.search-status {
    background-color: rgba(67, 97, 238, 0.1);
    padding: 8px 15px;
    border-radius: 20px;
    color: var(--text-color);
    display: inline-flex;
    align-items: center;
    font-size: 0.9rem;
    border-left: 3px solid var(--primary-color);
    animation: fadeIn 0.5s ease-out;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.search-status i {
    color: var(--primary-color);
}

.search-term {
    font-weight: 500;
    margin-left: 5px;
}