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

:root {
    --primary-color: #E31937;
    --primary-light: #0099FF;
    --accent-color: #E31937;
    --success-color: #E31937;
    --danger-color: #E31937;
    --warning-color: #E31937;
    --secondary-color: #E31937;
    --light-gray: #ffffff;
    --dark-gray: #333333;
    --border-color: #e0e0e0;
    --text-dark: #333333;
}

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

a {
    text-decoration: none;
}

.login-page {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
}

.login-container {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    flex: 1;
}

.login-box {
    background: white;
    padding: 50px 45px;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    width: 100%;
    max-width: 420px;
    border-top: 4px solid var(--accent-color);
}

.login-logo {
    width: 100px;
    height: auto;
    display: block;
    margin: 0 auto 20px;
}

.login-box h1 {
    text-align: center;
    font-size: 22px;
    margin-bottom: 30px;
    color: var(--primary-color);
    font-weight: 700;
    letter-spacing: 0.5px;
}

.form-group {
    margin-bottom: 20px;
    width: 100%;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 700;
    color: #333;
    font-size: 15px;
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="url"] {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid #e8e8e8;
    border-radius: 6px;
    font-size: 15px;
    transition: all 0.3s;
    background-color: #ffffff;
}

.form-group input[type="text"]:focus,
.form-group input[type="password"]:focus,
.form-group input[type="url"]:focus {
    outline: none;
    border-color: var(--primary-light);
    background-color: white;
    box-shadow: 0 0 0 3px rgba(31, 95, 160, 0.1);
}

.login-info {
    display: none;
}

.alert {
    padding: 12px 16px;
    margin-bottom: 20px;
    border-radius: 4px;
    border-left: 4px solid;
}

.alert-danger {
    background-color: #ffffff;
    color: #CC0000;
    border-left-color: var(--danger-color);
}

.btn {
    padding: 10px 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background-color: var(--primary-light);
    color: white;
    font-weight: 700;
}

.btn-primary:hover {
    background-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(31, 95, 160, 0.3);
}

.search-form .btn-primary {
    width: auto;
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: white;
    font-weight: 700;
}

.btn-secondary:hover {
    background-color: #CC0000;
}

.btn-success {
    background-color: var(--accent-color);
    color: white;
    font-weight: 700;
}

.btn-success:hover {
    background-color: #CC0000;
}

.btn-logout {
    background-color: var(--danger-color) !important;
    color: white !important;
}

.btn-logout:hover {
    background-color: #CC0000 !important;
    transform: translateY(-2px) !important;
    box-shadow: 0 6px 16px rgba(204, 0, 0, 0.4) !important;
}

.btn-small {
    padding: 12px 16px !important;
    font-size: 14px !important;
    font-weight: 700 !important;
    border-radius: 6px !important;
    text-transform: uppercase !important;
    letter-spacing: 0.3px !important;
}

.btn-link {
    background-color: var(--primary-color);
    color: white;
    padding: 10px 18px;
    font-size: 13px;
    text-decoration: none;
    font-weight: 700;
    border-radius: 6px;
    transition: all 0.3s;
    display: inline-block;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.btn-link:hover {
    background-color: #1F5FA0;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(31, 95, 160, 0.3);
}

.btn-delete {
    background-color: var(--accent-color);
    color: white;
    padding: 10px 14px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 700;
    transition: all 0.3s;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.btn-delete:hover {
    background-color: #a00000;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(204, 0, 0, 0.3);
}

.btn-edit {
    background-color: var(--primary-color);
    color: white;
    padding: 10px 14px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    margin-right: 5px;
    font-weight: 700;
    transition: all 0.3s;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.btn-edit:hover {
    background-color: #1F5FA0;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(31, 95, 160, 0.3);
}

.navbar-top {
    background-color: var(--primary-light);
    padding: 20px 30px;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    height: 130px;
}

.navbar-brand {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: white;
    transition: all 0.3s;
}

.navbar-brand:hover {
    opacity: 0.9;
}

.navbar-logo {
    width: 120px;
    height: auto;
    margin-right: 30px;
    transition: all 0.3s;
    object-fit: contain;
}

.navbar-title {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.navbar-subtitle {
    font-size: 12px;
    font-weight: 500;
    color: white;
    letter-spacing: 0.5px;
}

.navbar-main {
    font-size: 28px;
    font-weight: 700;
    color: white;
    letter-spacing: 0.5px;
}

.navbar-bottom {
    background-color: var(--accent-color);
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    gap: 20px;
}

.navbar-home {
    font-size: 14px;
    text-decoration: none;
    color: var(--primary-color);
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    padding: 8px 0;
    border-bottom: 3px solid transparent;
}

.navbar-home:hover {
    border-bottom-color: var(--primary-color);
    color: var(--primary-color);
}

.navbar-user {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.username {
    font-size: 15px;
    margin-right: 5px;
    font-weight: 500;
}

.btn-admin {
    background-color: var(--accent-color) !important;
    color: white !important;
}

.btn-admin:hover {
    background-color: #CC0000 !important;
    transform: translateY(-2px) !important;
    box-shadow: 0 6px 16px rgba(204, 0, 0, 0.4) !important;
}

.navbar-menu {
    display: flex;
    gap: 8px;
    align-items: center;
    justify-content: flex-start;
    flex-wrap: nowrap;
}

.nav-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    padding: 6px 12px;
    color: white;
    text-decoration: none;
    background-color: transparent;
    border: none;
    border-radius: 4px;
    transition: all 0.3s;
    cursor: pointer;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    min-height: auto;
    line-height: 1.1;
    white-space: nowrap;
}

.nav-icon {
    font-size: 20px;
    display: block;
}

.nav-text {
    font-size: 11px;
    font-weight: 700;
    display: block;
    color: white;
}

.nav-btn:hover {
    background-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.hamburger {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    gap: 6px;
    padding: 8px;
}

.hamburger span {
    width: 28px;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 2px;
    transition: all 0.3s;
}

.mobile-menu {
    background-color: white;
    padding: 15px;
    display: none;
    flex-direction: column;
    gap: 10px;
    position: absolute;
    width: 100%;
    top: auto;
    left: 0;
    z-index: 999;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.mobile-menu a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 700;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    padding: 8px 12px;
    border-radius: 4px;
    display: inline-flex !important;
    flex-direction: column;
    align-items: center !important;
    justify-content: center !important;
    gap: 4px;
    transition: all 0.3s;
    border-left: 3px solid transparent;
}

.mobile-menu a:hover {
    background-color: rgba(0, 0, 0, 0.1);
    border-left-color: var(--primary-color);
}

.mobile-menu hr {
    border: none;
    border-top: 2px solid rgba(0, 0, 0, 0.1);
    margin: 10px 0;
}

.badge {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
}

.badge-admin {
    background-color: var(--accent-color);
    color: white;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 15px 20px;
    background-color: #ffffff;
}

.search-box {
    margin-bottom: 20px;
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    border-left: 4px solid var(--accent-color);
}

.search-form {
    display: flex;
    gap: 15px;
    align-items: center;
    flex-wrap: wrap;
    justify-content: flex-start;
}

.search-input-group {
    display: flex;
    gap: 10px;
    flex: 1 1 100%;
    min-width: 300px;
}

.search-box input {
    flex: 1;
    padding: 14px 16px;
    border: 2px solid #e8e8e8;
    border-radius: 6px;
    font-size: 15px;
    transition: all 0.3s;
    background-color: #ffffff;
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-light);
    background-color: white;
    box-shadow: 0 0 0 3px rgba(31, 95, 160, 0.1);
}

.btn-search {
    padding: 14px 28px !important;
    font-size: 14px !important;
    font-weight: 700 !important;
    white-space: nowrap;
    text-transform: uppercase !important;
    letter-spacing: 0.3px !important;
    width: auto !important;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: nowrap;
    flex: 1 1 auto;
}

.filter-select {
    padding: 14px 16px;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    font-size: 15px;
    background-color: white;
    cursor: pointer;
    transition: border-color 0.3s;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    flex: 1 1 auto;
    min-width: 150px;
}

.filter-select:hover {
    border-color: var(--primary-color);
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 8px rgba(31, 95, 160, 0.2);
}

.search-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: nowrap;
    flex: 0 1 auto;
}

.search-actions .btn {
    margin: 0;
    white-space: nowrap;
    padding: 14px 20px !important;
    font-size: 14px !important;
}

.tag-badge {
    display: inline-block;
    background-color: var(--primary-light);
    color: white;
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 600;
    margin-right: 6px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.main-content {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 20px;
}

.sidebar {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    height: fit-content;
    border-left: 4px solid var(--accent-color);
}

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 0;
    border-bottom: none;
    gap: 10px;
}

.sidebar-header h3 {
    font-size: 15px;
    margin: 0;
    font-weight: 700;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.folder-list {
    list-style: none;
}

.folder-list li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.folder-list a {
    flex: 1;
    padding: 14px 16px;
    text-decoration: none;
    color: white;
    background-color: var(--primary-light);
    border-radius: 6px;
    transition: all 0.3s;
    font-size: 15px;
    font-weight: 700;
    border: none;
}

.folder-list a:hover {
    background-color: var(--primary-color);
    transform: translateX(4px);
    box-shadow: 0 2px 6px rgba(31, 95, 160, 0.2);
}

.folder-list a.active {
    background-color: var(--accent-color);
    color: white;
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(204, 0, 0, 0.2);
}

.folder-actions {
    display: none;
    opacity: 0;
}

.folder-list li:hover .folder-actions {
    display: block;
    opacity: 1;
}

.content {
    background: white;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.content h2 {
    color: var(--primary-color);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 25px;
    padding-bottom: 12px;
    border-bottom: 3px solid var(--accent-color);
    font-size: 20px;
}

.content h3 {
    color: var(--primary-color);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 20px;
}

.files-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    gap: 15px;
    flex-wrap: wrap;
}

.files-header h2 {
    font-size: 22px !important;
    margin: 0 !important;
    font-weight: 700 !important;
    color: #333 !important;
    text-transform: uppercase !important;
    letter-spacing: 0.5px !important;
    border: none !important;
    border-bottom: none !important;
    padding-bottom: 0 !important;
    margin-bottom: 0 !important;
    text-decoration: none !important;
}

.files-list {
    min-height: 300px;
}

.empty-message {
    text-align: center;
    color: #999;
    padding: 40px 20px;
    font-size: 16px;
}

.files-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 16px;
}

.files-table thead {
    background-color: var(--primary-light);
    border-bottom: 3px solid var(--accent-color);
}

.files-table th {
    padding: 16px 16px;
    text-align: left;
    font-weight: 700;
    color: white;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}

.files-table td {
    padding: 18px 16px;
    border-bottom: 1px solid var(--border-color);
    font-size: 16px;
}

.files-table tbody tr:hover {
    background-color: #f0f0f0;
    transition: background-color 0.2s;
}

.modal {
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background-color: white;
    padding: 28px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    width: 90%;
    max-width: 500px;
    position: relative;
    display: block !important;
    overflow: visible !important;
    min-height: auto !important;
}

.close {
    position: absolute;
    right: 15px;
    top: 15px;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    color: #999;
    transition: color 0.3s;
}

.close:hover {
    color: #000;
}

.modal-content h2 {
    margin-bottom: 20px;
    font-size: 20px;
    color: var(--primary-color);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.modal-content form {
    display: block !important;
    width: 100% !important;
}

.modal-content .btn-primary {
    width: 100%;
}

.form-group input[type="checkbox"] {
    margin-right: 8px;
}

@media (max-width: 768px) {
    .main-content {
        grid-template-columns: 1fr;
    }

    .navbar-top {
        padding: 15px 20px;
        height: 130px;
    }

    .navbar-logo {
        width: 100px;
        margin-right: 20px;
    }

    .navbar-main {
        font-size: 24px;
    }

    .navbar-bottom {
        padding: 12px 20px;
        gap: 15px;
        justify-content: flex-start;
    }

    .navbar-menu {
        display: none;
    }

    .hamburger {
        display: flex;
        order: 3;
        margin-left: auto;
    }

    .navbar-user {
        display: none;
    }

    .mobile-menu {
        display: flex;
        flex-direction: column;
        gap: 10px !important;
    }

    .mobile-menu .nav-btn {
        width: 100%;
        justify-content: flex-start;
    }

    .search-box form {
        flex-direction: column;
    }

    .search-input-group {
        min-width: 100%;
        flex-basis: 100%;
    }

    .filter-group {
        flex-direction: row;
        width: 100%;
        flex-basis: 100%;
    }

    .filter-select {
        flex: 1 1 auto;
        min-width: 100px;
    }

    .search-actions {
        width: 100%;
        flex-basis: 100%;
        flex-direction: row;
    }

    .search-actions .btn {
        flex: 1 1 auto;
    }

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

    .files-table {
        font-size: 12px;
    }

    .files-table th,
    .files-table td {
        padding: 8px;
    }
}

.btn-danger {
    background-color: var(--danger-color);
    color: white;
    font-weight: 700;
}

.btn-danger:hover {
    background-color: #a00000;
    box-shadow: 0 4px 12px rgba(204, 0, 0, 0.3);
}

.form-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 20px;
}

.modal-content .form-group {
    width: 100% !important;
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
    height: auto !important;
    min-height: 60px !important;
    margin-bottom: 15px !important;
    padding: 0 !important;
    position: relative !important;
}

.modal-content .form-group label {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
    width: 100% !important;
    margin-bottom: 8px !important;
}

.modal-content .form-group input[type="password"] {
    width: 100% !important;
    display: block !important;
    box-sizing: border-box !important;
    visibility: visible !important;
    opacity: 1 !important;
    height: auto !important;
    min-height: 44px !important;
    padding: 10px 12px !important;
}

footer {
    background-color: transparent;
    color: var(--dark-gray);
    text-align: center;
    padding: 30px;
    margin-top: auto;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.3px;
    width: 100%;
}

.login-page footer {
    color: var(--dark-gray);
}

body:not(.login-page) footer {
    background-color: var(--dark-gray);
    color: white;
    border-top: 1px solid var(--border-color);
}

footer a {
    color: var(--primary-light);
    text-decoration: none;
    transition: all 0.3s;
}

footer a:hover {
    opacity: 0.8;
    text-decoration: underline;
}

html, body {
    height: 100%;
}

body {
    display: flex;
    flex-direction: column;
}

.login-page {
    height: 100vh;
}

.container {
    flex: 1;
}