:root {
    --primary-color: #1a365d;
    --primary-light: #2d4b8c;
    --secondary-color: #2d3748;
    --secondary-light: #4a5568;
    --accent-color: #3182ce;
    --accent-light: #63b3ed;
    --light-color: #f7fafc;
    --gray-color: #e2e8f0;
    --gray-light: #edf2f7;
    --text-color: #2d3748;
    --text-light: #718096;
    --success-color: #38a169;
    --warning-color: #ed8936;
    --danger-color: #e53e3e;
    --custom-color: #805ad5;
    --info-color: #4299e1;
    --border-radius: 10px;
    --border-radius-sm: 6px;
    --border-radius-lg: 15px;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --transition: all 0.25s ease;
    --transition-slow: all 0.4s ease;
    --card-bg: white;
    --header-bg: white;
    --modal-bg: white;
    --input-bg: white;
    --footer-bg: var(--primary-color)
}

.dark-mode {
    --primary-color: #2d3748;
    --primary-light: #4a5568;
    --secondary-color: #e2e8f0;
    --secondary-light: #cbd5e0;
    --accent-color: #63b3ed;
    --accent-light: #90cdf4;
    --light-color: #1a202c;
    --gray-color: #4a5568;
    --gray-light: #2d3748;
    --text-color: #e2e8f0;
    --text-light: #a0aec0;
    --success-color: #68d391;
    --warning-color: #f6ad55;
    --danger-color: #fc8181;
    --custom-color: #9f7aea;
    --info-color: #76c6ff;
    --card-bg: #2d3748;
    --header-bg: #2d3748;
    --modal-bg: #2d3748;
    --input-bg: #2d3748;
    --footer-bg: #1a202c
}

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

body {
    font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: var(--transition-slow)
}

body.dark-mode {
    background-color: #121212;
    color: #e0e0e0
}

a {
    text-decoration: none;
    color: inherit
}

.container {
    width: 100%;
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 20px
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--accent-color);
    border-radius: var(--border-radius);
    transition: var(--transition);
    white-space: nowrap
}

.btn:hover {
    background-color: var(--primary-light);
    box-shadow: var(--shadow)
}

.btn:active {
    transform: translateY(0)
}

.btn-secondary {
    background-color: var(--secondary-color)
}

.btn-secondary:hover {
    background-color: var(--secondary-light)
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--accent-color);
    color: var(--accent-color)
}

.btn-outline:hover {
    background-color: var(--accent-color);
    color: #fff
}

.btn-sm {
    padding: 8px 16px;
    font-size: .85rem
}

.btn-icon {
    padding: 10px;
    border-radius: 50%;
    min-width: 40px;
    min-height: 40px
}

.edit-btn {
    position: absolute;
    top: 10px;
    right: 45px;
    background: var(--info-color);
    color: #fff;
    border: none;
    border-radius: 50%;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: .9rem;
    opacity: 0;
    transition: var(--transition);
    z-index: 10
}

.edit-btn:hover {
    background: #3182ce;
    transform: scale(1.1)
}

.none {
    display: none !important
}

header {
    background-color: var(--header-bg);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background-color: rgba(var(--header-bg), .95);
    transition: var(--transition-slow);
    border-bottom: 1px solid var(--gray-color)
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.4rem;
    color: var(--primary-color)
}

.logo-icon {
    color: var(--accent-color);
    font-size: 1.8rem
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2
}

.logo-subtitle {
    font-size: .7rem;
    color: var(--text-light);
    font-weight: 500;
    letter-spacing: .5px
}

.header-actions {
    display: flex;
    gap: 10px;
    margin-left: 20px
}

.mobile-menu-btn {
    display: none;
    background: 0 0;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-color);
    cursor: pointer;
    padding: 5px;
    border-radius: var(--border-radius-sm)
}

.mobile-menu-btn:hover {
    background-color: var(--gray-light)
}

.function-tabs {
    background-color: #fff;
    border-radius: 12px;
    box-shadow: 0 6px 15px rgba(0, 0, 0, .08);
    margin-bottom: 25px;
    overflow: hidden
}

.tab-header {
    display: flex;
    background-color: #e0e8f5;
    padding-bottom: 3px
}

.dark-mode .tab-header {
    background-color: #2d3748
}

.tab-btn {
    flex: 1;
    padding: 16px 20px;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 400;
    background: #eef2f7;
    color: #5a6c7d;
    transition: .3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px
}

.tab-btn i {
    padding: 0 5px
}

.dark-mode .tab-btn {
    background: #2d2d2d;
    color: #b0b0b0
}

.tab-btn .activeicon {
    display: none
}

.tab-btn.bottomwidth {
    width: 0;
    display: none
}

.tab-btn:hover {
    background: #d5e0f0;
    color: #4a6491
}

.dark-mode .tab-btn:hover {
    background: #3d3d3d;
    color: #fff
}

.tab-btn.active {
    background-color: var(--card-bg);
    background-color: #e0e8f5;
    color: #4a6491;
    font-weight: 700
}

.tab-btn.active .activeicon {
    padding-left: 5px;
    display: inline
}

.dark-mode .tab-btn.active {
    background-color: #2d3748;
    color: #fff;
    font-weight: 700
}

.tab-btn.active .bottomwidth {
    display: block;
    width: 50px;
    border-bottom: 1px solid #4a6491;
    border: 1px solid
}

.tab-content {
    padding: 25px
}

.tab-pane {
    display: none
}

.tab-pane.active {
    display: block
}

.dark-mode .tab-pane.active {
    background-color: #2d3748
}

nav ul {
    display: flex;
    list-style: none;
    gap: 5px
}

nav a {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: .95rem;
    padding: 10px 18px;
    border-radius: var(--border-radius);
    transition: var(--transition);
    white-space: nowrap
}

nav a.active,
nav a:hover {
    background-color: var(--gray-light);
    color: var(--accent-color)
}

nav a i {
    font-size: 1.1rem
}

main {
    flex: 1;
    padding: 30px 0
}

.page-title {
    font-size: 2rem;
    margin-bottom: 30px;
    color: var(--primary-color);
    padding-bottom: 15px;
    border-bottom: 2px solid var(--gray-color);
    position: relative
}

.page-title:after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 80px;
    height: 2px;
    background-color: var(--accent-color)
}

footer {
    background-color: var(--footer-bg);
    color: #fff;
    padding: 40px 0 20px;
    margin-top: auto;
    transition: var(--transition-slow)
}

.footer-container {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 30px
}

.footer-section {
    flex: 1;
    min-width: 250px
}

.footer-section h3 {
    margin-bottom: 18px;
    font-size: 1.2rem;
    position: relative;
    padding-bottom: 10px
}

.footer-section h3:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: var(--accent-color)
}

.footer-section p {
    color: #cbd5e0;
    line-height: 1.8
}

.copyright {
    text-align: center;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid var(--gray-color);
    color: #a0aec0;
    font-size: .85rem
}

.search-section {
    background-color: var(--card-bg);
    border-radius: var(--border-radius-lg);
    padding: 30px;
    box-shadow: var(--shadow);
    margin-bottom: 25px;
    border: 1px solid var(--gray-color);
    transition: var(--transition-slow)
}

.search-form {
    display: flex;
    flex-direction: column;
    gap: 25px
}

.search-engine-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center
}

.search-engine-selector h3 {
    font-size: 1.1rem;
    color: var(--secondary-color);
    width: 100%;
    margin-bottom: 5px;
    flex-basis: 100%
}

.engine-options-container {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    width: 100%
}

.engine-option {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    padding: 10px 18px;
    border-radius: 30px;
    border: 2px solid var(--gray-color);
    transition: var(--transition);
    background-color: var(--card-bg);
    flex-shrink: 0
}

.engine-option:hover {
    border-color: var(--accent-light);
    background-color: var(--gray-light)
}

.engine-option.selected {
    border-color: var(--accent-color);
    background-color: var(--gray-light);
    box-shadow: 0 0 0 3px rgba(49, 130, 206, .1)
}

.engine-option i {
    font-size: 1.1rem
}

.search-input-group {
    display: flex;
    gap: 10px
}

.search-input {
    flex: 1;
    padding: 16px 20px;
    border: 2px solid var(--gray-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    background-color: var(--input-bg);
    color: var(--text-color)
}

.search-input:focus {
    outline: 0;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(49, 130, 206, .1)
}

.search-input::placeholder {
    color: var(--text-light)
}

.nav-section {
    background-color: var(--card-bg);
    border-radius: var(--border-radius-lg);
    padding: 30px;
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-color);
    transition: var(--transition-slow)
}

.section-header {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 5px
}

.section-header h2 {
    font-size: 1.5rem;
    color: var(--primary-color)
}

.section-header p {
    color: var(--text-light);
    margin-top: 5px
}

.edit-mode-controls {
    display: flex;
    gap: 12px;
    flex-wrap: wrap
}

.category-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 30px;
    border-bottom: 2px solid var(--gray-light);
    overflow-x: auto;
    scrollbar-width: thin;
    padding-bottom: 10px
}

.category-tabs::-webkit-scrollbar {
    height: 6px
}

.category-tabs::-webkit-scrollbar-track {
    background: var(--gray-light);
    border-radius: 3px
}

.category-tabs::-webkit-scrollbar-thumb {
    background: var(--accent-light);
    border-radius: 3px
}

.category-tab {
    padding: 10px 22px;
    border-radius: 30px;
    background-color: var(--gray-light);
    color: var(--text-color);
    cursor: pointer;
    font-weight: 600;
    font-size: .9rem;
    transition: var(--transition);
    white-space: nowrap
}

.category-tab:hover {
    background-color: var(--accent-light);
    color: #fff;
    transform: translateY(-2px)
}

.category-tab.active {
    background-color: var(--accent-color);
    color: #fff;
    box-shadow: var(--shadow)
}

.websites-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px
}

.website-card {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 15px;
    border-radius: var(--border-radius);
    border: 2px solid var(--gray-color);
    transition: var(--transition);
    cursor: pointer;
    background-color: var(--card-bg);
    position: relative;
    overflow: hidden
}

.website-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-5px);
    box-shadow: var(--shadow)
}

.website-card:active {
    transform: translateY(-2px)
}

.website-card.editing-mode .delete-btn,
.website-card.editing-mode .edit-btn {
    display: flex;
    opacity: .7
}

.website-card.editing-mode:hover .delete-btn,
.website-card.editing-mode:hover .edit-btn {
    opacity: 1
}

.website-icon {
    width: 65px;
    height: 65px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #ebf8ff, #bee3f8);
    border-radius: 12px;
    font-size: 1.6rem;
    color: var(--accent-color);
    flex-shrink: 0;
    box-shadow: var(--shadow-sm)
}

.website-info {
    flex: 1;
    min-width: 0
}

.website-info h3 {
    margin-bottom: 6px;
    font-size: 1.15rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis
}

.website-info p {
    color: var(--text-light);
    font-size: .9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis
}

.website-category {
    display: inline-block;
    margin-top: 8px;
    padding: 5px 10px;
    background-color: var(--gray-light);
    border-radius: 12px;
    font-size: .75rem;
    font-weight: 600;
    color: var(--secondary-color)
}

.custom-badge {
    position: absolute;
    margin-left: 20px;
    margin-top: -3px;
    background-color: #cbd5e0;
    color: #fff;
    font-size: .65rem;
    padding: 5px 15px;
    border-radius: 12px;
    font-weight: 600;
    z-index: 5;
    box-shadow: 0 1px 3px rgba(0, 0, 0, .2)
}

.original-default-badge {
    position: absolute;
    background-color: #cbd5e0;
    color: #fff;
    font-size: .65rem;
    padding: 2px 6px;
    border-radius: 10px;
    font-weight: 600;
    z-index: 5;
    box-shadow: 0 1px 3px rgba(0, 0, 0, .2)
}

.restore-default-btn {
    background-color: var(--info-color);
    color: #fff
}

.restore-default-btn:hover {
    background-color: #3182ce
}

.edit-mode-controls {
    padding: 15px 20px;
    background-color: var(--gray-light);
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    border: 1px solid var(--gray-color)
}

.software-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 30px;
    overflow-x: auto;
    padding-bottom: 10px
}

.filter-btn {
    background-color: var(--gray-light);
    color: var(--text-color);
    transition: var(--transition);
    white-space: nowrap
}

.filter-btn:hover {
    background-color: var(--accent-light);
    color: #fff
}

.filter-btn.active {
    background-color: var(--accent-color);
    box-shadow: var(--shadow)
}

.software-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px
}

.software-card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--gray-color)
}

.software-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg)
}

.software-card-header {
    padding: 25px;
    background-color: var(--gray-light);
    border-bottom: 1px solid var(--gray-color);
    display: flex;
    justify-content: space-between;
    align-items: flex-start
}

.software-card-header h3 {
    font-size: 1.35rem;
    margin-bottom: 12px;
    color: var(--primary-color)
}

.software-card-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-light), var(--accent-color));
    border-radius: 12px;
    font-size: 1.5rem;
    color: #fff;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm)
}

.platform-tag {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 12px;
    border-radius: 20px;
    background-color: var(--gray-light);
    color: var(--secondary-color);
    font-size: .8rem;
    font-weight: 600;
    margin-right: 8px;
    margin-bottom: 8px
}

.software-card-body {
    padding: 25px
}

.software-detail {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--gray-color)
}

.detail-label {
    font-weight: 600;
    color: var(--secondary-color)
}

.software-card-footer {
    padding: 20px 25px;
    background-color: var(--gray-light);
    border-top: 1px solid var(--gray-color);
    display: flex;
    justify-content: space-between;
    gap: 15px
}

.detail-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 30px
}

.detail-main {
    background-color: var(--card-bg);
    border-radius: var(--border-radius-lg);
    padding: 35px;
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-color);
    transition: var(--transition-slow)
}

.detail-sidebar {
    background-color: var(--card-bg);
    border-radius: var(--border-radius-lg);
    padding: 30px;
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-color);
    align-self: start;
    position: sticky;
    top: 100px;
    transition: var(--transition-slow)
}

.software-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 35px
}

.software-title h1 {
    font-size: 2.2rem;
    color: var(--primary-color);
    margin-bottom: 10px
}

.software-meta {
    display: flex;
    gap: 20px;
    color: var(--text-light);
    flex-wrap: wrap
}

.software-icon-large {
    width: 90px;
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-light), var(--accent-color));
    border-radius: 18px;
    font-size: 2.8rem;
    color: #fff;
    box-shadow: var(--shadow)
}

.detail-section {
    margin-bottom: 35px
}

.detail-section h2 {
    font-size: 1.6rem;
    margin-bottom: 20px;
    color: var(--secondary-color);
    padding-bottom: 12px;
    border-bottom: 2px solid var(--gray-light)
}

.feature-list {
    list-style: none;
    padding-left: 0
}

.feature-list li {
    margin-bottom: 12px;
    padding-left: 28px;
    position: relative
}

.feature-list li:before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--success-color);
    font-weight: 700
}

.review-card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 28px;
    box-shadow: var(--shadow);
    margin-bottom: 25px;
    border: 1px solid var(--gray-color);
    transition: var(--transition-slow)
}

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

.reviewer-info {
    display: flex;
    align-items: center;
    gap: 18px;
    flex: 1
}

.reviewer-avatar {
    width: 55px;
    height: 55px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-color), var(--primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 1.3rem;
    flex-shrink: 0
}

.review-rating {
    display: flex;
    gap: 5px;
    color: #f6ad55;
    font-size: 1.1rem;
    flex-shrink: 0
}

.review-content {
    line-height: 1.8;
    color: var(--text-color)
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, .5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
    backdrop-filter: blur(3px)
}

.modal.active {
    display: flex
}

.modal-content {
    background-color: var(--modal-bg);
    border-radius: var(--border-radius-lg);
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    padding: 35px;
    box-shadow: var(--shadow-lg);
    animation: .3s modalFadeIn;
    transition: var(--transition-slow)
}

.dark-mode .modal-content {
    background-color: #1e1e1e;
    box-shadow: 0 15px 40px rgba(0, 0, 0, .4)
}

.modal-header {
    border-bottom: 1px solid #eaeaea;
    display: flex;
    justify-content: space-between;
    align-items: center;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px
}

.modal-title {
    font-size: 1.6rem;
    color: #2c3e50
}

.modal-close {
    background: 0 0;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: #7f8c8d;
    transition: .2s
}

.modal-close:hover {
    color: #2c3e50
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: translateY(-30px)
    }

    to {
        opacity: 1;
        transform: translateY(0)
    }
}

.modal-header h2 {
    color: var(--primary-color);
    font-size: 1.5rem
}

.close-modal {
    background: 0 0;
    border: none;
    font-size: 1.8rem;
    cursor: pointer;
    color: var(--text-light);
    padding: 5px;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition)
}

.close-modal:hover {
    background-color: var(--gray-light);
    color: var(--danger-color)
}

.form-group {
    margin-bottom: 22px
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--secondary-color)
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--gray-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    font-family: inherit;
    background-color: var(--input-bg);
    color: var(--text-color)
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: 0;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(49, 130, 206, .1)
}

.form-group small {
    display: block;
    margin-top: 6px;
    color: var(--text-light);
    font-size: .85rem
}

.form-group small a {
    color: var(--accent-color);
    text-decoration: underline
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 15px;
    margin-top: 30px
}

.new-category-input {
    display: none;
    margin-top: 10px;
    animation: .3s fadeIn
}

.new-category-input.active {
    display: block
}

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

    to {
        opacity: 1;
        transform: translateY(0)
    }
}

.restore-selection {
    margin-top: 20px;
    padding: 15px;
    background-color: var(--gray-light);
    border-radius: var(--border-radius);
    border: 1px solid var(--gray-color);
    max-height: 300px;
    overflow-y: auto
}

.restore-option {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    padding: 10px;
    border-radius: var(--border-radius-sm);
    background-color: var(--card-bg);
    border: 1px solid var(--gray-color);
    cursor: pointer;
    transition: var(--transition)
}

.restore-option:hover {
    background-color: var(--gray-light)
}

.restore-option input[type=checkbox] {
    margin: 0
}

.restore-option label {
    flex: 1;
    cursor: pointer;
    font-size: .9rem
}

.restore-checkbox {
    display: flex;
    align-items: center;
    gap: 8px
}

.select-all-btn {
    font-size: .85rem;
    padding: 6px 12px;
    margin-right: 10px
}

.restore-hint {
    grid-column: 1/-1;
    text-align: center;
    padding: 20px;
    background-color: var(--gray-light);
    border-radius: var(--border-radius);
    margin-top: 10px
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-light)
}

.empty-state i {
    font-size: 3.5rem;
    color: var(--gray-color);
    margin-bottom: 20px
}

.empty-state h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--secondary-color)
}

.loader {
    display: none;
    text-align: center;
    padding: 40px
}

.loader.active {
    display: block
}

.spinner {
    border: 4px solid rgba(0, 0, 0, .1);
    border-radius: 50%;
    border-top: 4px solid var(--accent-color);
    width: 40px;
    height: 40px;
    animation: 1s linear infinite spin;
    margin: 0 auto 20px
}

@keyframes spin {
    0% {
        transform: rotate(0)
    }

    100% {
        transform: rotate(360deg)
    }
}

.delete-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--danger-color);
    color: #fff;
    border: none;
    border-radius: 50%;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: .9rem;
    opacity: 0;
    transition: var(--transition);
    z-index: 10
}

.website-card:hover .delete-btn {
    opacity: 1
}

.delete-btn:hover {
    background: #c53030;
    transform: scale(1.1)
}

.settings-btn {
    background: 0 0;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    padding: 10px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition)
}

.settings-btn:hover {
    background-color: var(--gray-light)
}

.settings-menu {
    position: absolute;
    top: 60px;
    right: 0;
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    padding: 10px;
    min-width: 250px;
    border: 1px solid var(--gray-color);
    display: none;
    z-index: 101
}

.settings-menu.active {
    display: block;
    animation: .2s modalFadeIn
}

.settings-menu-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 15px;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-color);
    position: relative
}

.settings-menu-item:hover {
    background-color: var(--gray-light)
}

.settings-menu-item.danger {
    color: var(--danger-color)
}

.settings-menu-item.danger:hover {
    background-color: rgba(229, 62, 62, .1)
}

.menu-item-description {
    font-size: .75rem;
    color: var(--text-light);
    margin-top: 4px;
    line-height: 1.3;
    display: none
}

.settings-menu-item:hover .menu-item-description {
    display: block
}

.menu-item-info {
    position: absolute;
    top: 12px;
    right: 15px;
    font-size: .8rem;
    color: var(--accent-color);
    font-weight: 600
}

.info-popup {
    position: absolute;
    top: 0;
    left: 100%;
    margin-left: 10px;
    background-color: var(--card-bg);
    border: 1px solid var(--gray-color);
    border-radius: var(--border-radius);
    padding: 15px;
    box-shadow: var(--shadow-lg);
    min-width: 250px;
    display: none;
    z-index: 102;
    font-size: .85rem;
    line-height: 1.5
}

.info-popup h4 {
    margin-bottom: 8px;
    color: var(--primary-color);
    font-size: .9rem
}

.info-popup table {
    width: 100%;
    margin-top: 10px;
    border-collapse: collapse;
    font-size: .8rem
}

.info-popup td,
.info-popup th {
    padding: 6px 8px;
    border: 1px solid var(--gray-color);
    text-align: left
}

.info-popup th {
    background-color: var(--gray-light);
    font-weight: 600
}

.info-popup tr:nth-child(2n) {
    background-color: var(--gray-light)
}

.info-icon {
    margin-left: 5px;
    color: var(--accent-color);
    cursor: help
}

.app-container {
    display: grid;
    grid-template-columns: 1fr 290px;
    gap: 25px
}

.dark-mode .app-container {
    background-color: #123
}

.sidebar {
    background-color: #fff;
    border-radius: 12px;
    box-shadow: 0 6px 15px rgba(0, 0, 0, .08);
    padding: 25px;
    height: fit-content
}

.dark-mode .sidebar {
    background-color: #2d3748;
    box-shadow: 0 6px 15px rgba(0, 0, 0, .2)
}

.section-title {
    font-size: 1.4rem;
    color: #2c3e50;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #f0f2f5;
    display: flex;
    align-items: center;
    gap: 10px
}

.dark-mode .section-title {
    color: #e0e0e0;
    border-bottom-color: #333
}

.dark-mode .search-filter-section {
    background-color: #1e1e1e;
    box-shadow: 0 6px 15px rgba(0, 0, 0, .2)
}

.notes-area {
    background-color: #fff;
    border-radius: 12px;
    box-shadow: 0 6px 15px rgba(0, 0, 0, .08);
    padding: 25px
}

.dark-mode .notes-area {
    background-color: #2d3748;
    box-shadow: 0 6px 15px rgba(0, 0, 0, .2)
}

.notes-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px
}

.notes-count {
    font-size: 1.1rem;
    color: #5a6c7d
}

.dark-mode .notes-count {
    color: #b0b0b0
}

.notes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px
}

.note-card {
    border-radius: 12px;
    padding: 22px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, .08);
    transition: .3s;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    height: 100%;
    position: relative;
    overflow: hidden
}

.note-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 25px rgba(0, 0, 0, .15)
}

.note-card.pinned::before {
    content: '\f08d';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    top: 12px;
    right: 12px;
    color: rgba(0, 0, 0, .2);
    font-size: 1.2rem
}

.note-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 15px
}

.note-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: #2c3e50;
    margin-right: 15px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex-grow: 1
}

.dark-mode .note-title {
    color: #e0e0e0
}

.note-category {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: .8rem;
    font-weight: 600;
    white-space: nowrap
}

.note-content {
    flex-grow: 1;
    margin-bottom: 20px;
    color: #4a5568;
    line-height: 1.5;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 6;
    -webkit-box-orient: vertical
}

.dark-mode .note-content {
    color: silver
}

.note-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: .85rem;
    color: #7f8c8d;
    border-top: 1px solid rgba(0, 0, 0, .05);
    padding-top: 15px
}

.dark-mode .note-footer {
    color: #777;
    border-top-color: #333
}

.note-date {
    display: flex;
    align-items: center;
    gap: 5px
}

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

.note-action-btn {
    background: 0 0;
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: #7f8c8d;
    transition: .2s
}

.dark-mode .note-action-btn {
    color: #999
}

.note-action-btn:hover {
    background-color: rgba(0, 0, 0, .05);
    color: #4a6491
}

.dark-mode .note-action-btn:hover {
    background-color: rgba(255, 255, 255, .1);
    color: #5d7bb5
}

.empty-notes {
    text-align: center;
    padding: 60px 20px;
    color: #95a5a6
}

.dark-mode .empty-notes {
    color: #777
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: 20px;
    opacity: .3
}

.empty-text {
    font-size: 1.2rem;
    margin-bottom: 15px
}

.filter-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--gray-color)
}

.note-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 30px
}

.form-group-note {
    display: flex;
    flex-direction: column;
    gap: 8px
}

label {
    font-weight: 600;
    color: #5a6c7d;
    font-size: .95rem
}

.dark-mode label {
    color: #b0b0b0
}

input,
select,
textarea {
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
    transition: .3s
}

.dark-mode input,
.dark-mode select,
.dark-mode textarea {
    background-color: #2d2d2d;
    border-color: #444;
    color: #e0e0e0
}

input:focus,
select:focus,
textarea:focus {
    outline: 0;
    border-color: #4a6491;
    box-shadow: 0 0 0 3px rgba(74, 100, 145, .2)
}

.dark-mode input:focus,
.dark-mode select:focus,
.dark-mode textarea:focus {
    border-color: #5d7bb5;
    box-shadow: 0 0 0 3px rgba(93, 123, 181, .3)
}

textarea {
    resize: vertical;
    min-height: 120px;
    font-family: inherit
}

.btn {
    padding: 14px 20px;
    background-color: #4a6491;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: .3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px
}

.btn:hover {
    background-color: #3a5479;
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, .15)
}

.btn-secondary {
    background-color: #6c757d
}

.btn-secondary:hover {
    background-color: #5a6268
}

.btn-success {
    background-color: #28a745
}

.btn-success:hover {
    background-color: #218838
}

.btn-danger {
    background-color: #dc3545
}

.btn-danger:hover {
    background-color: #c82333
}

.color-options {
    display: flex;
    gap: 8px;
    flex-wrap: wrap
}

.color-option {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    border: 3px solid transparent;
    transition: .2s
}

.color-option:hover {
    transform: scale(1.1)
}

.color-option.selected {
    border-color: #2c3e50;
    transform: scale(1.1)
}

.dark-mode .color-option.selected {
    border-color: #e0e0e0
}

.stats {
    background-color: #f8f9fa;
    border-radius: 10px;
    padding: 20px;
    margin-top: 25px
}

.dark-mode .stats {
    background-color: #252525
}

.stat-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid #eaeaea
}

.dark-mode .stat-item {
    border-bottom-color: #333
}

.stat-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none
}

.stat-value {
    font-weight: 700;
    color: #4a6491
}

.dark-mode .stat-value {
    color: #5d7bb5
}

.search-filter-section {
    background-color: #fff;
    border-radius: 12px;
    box-shadow: 0 6px 15px rgba(0, 0, 0, .08);
    padding: 25px;
    margin-bottom: 25px
}

.search-filter-container {
    display: flex;
    flex-direction: column;
    gap: 20px
}

.search-box {
    position: relative
}

.search-box input {
    width: 100%;
    padding: 12px 15px 12px 45px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
    transition: .3s
}

.search-box input:focus {
    outline: 0;
    border-color: #4a6491;
    box-shadow: 0 0 0 3px rgba(74, 100, 145, .2)
}

.dark-mode .search-box input {
    background-color: #2d2d2d;
    border-color: #444;
    color: #e0e0e0
}

.dark-mode .search-box input:focus {
    border-color: #5d7bb5;
    box-shadow: 0 0 0 3px rgba(93, 123, 181, .3)
}

.search-icon {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #7f8c8d
}

.dark-mode .search-icon {
    color: #999
}

.filter-options {
    display: flex;
    flex-wrap: wrap;
    gap: 10px
}

.filter-btn {
    padding: 8px 15px;
    background-color: #eef2f7;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    font-weight: 600;
    color: #5a6c7d;
    transition: .3s;
    font-size: .9rem
}

.dark-mode .filter-btn {
    background-color: #2d2d2d;
    color: #b0b0b0
}

.filter-btn.active {
    background-color: #4a6491;
    color: #fff
}

.filter-btn:hover:not(.active) {
    background-color: #dfe6f0
}

.note-color-yellow {
    background-color: #fff9c4;
    color: #5d4037
}

.note-color-blue {
    background-color: #e3f2fd;
    color: #0d47a1
}

.note-color-green {
    background-color: #e8f5e9;
    color: #1b5e20
}

.note-color-pink {
    background-color: #fce4ec;
    color: #880e4f
}

.note-color-purple {
    background-color: #f3e5f5;
    color: #4a148c
}

.note-color-white {
    background-color: #fff;
    color: #333;
    border: 1px solid #e0e0e0
}

.dark-mode .note-color-yellow {
    background-color: #3d3a1d;
    color: khaki
}

.dark-mode .note-color-blue {
    background-color: #1a2a3a;
    color: #87ceeb
}

.dark-mode .note-color-green {
    background-color: #1a2a1a;
    color: #98fb98
}

.dark-mode .note-color-pink {
    background-color: #3a1a2a;
    color: #ffb6c1
}

.dark-mode .note-color-purple {
    background-color: #2a1a3a;
    color: #d8bfd8
}

.dark-mode .note-color-white {
    background-color: #2d2d2d;
    color: #e0e0e0;
    border: 1px solid #444
}

@media (max-width:1000px) {
    .detail-container {
        grid-template-columns: 1fr
    }

    .detail-sidebar {
        position: static
    }

    .software-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr))
    }

    .app-container {
        grid-template-columns: 1fr
    }

    .search-filter-section {
        order: -1;
        grid-column: 1
    }
}

@media (max-width:768px) {
    .header-container {
        padding: 10px 0
    }

    .header-actions {
        display: none
    }

    .mobile-menu-btn {
        display: block
    }

    nav {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--header-bg);
        box-shadow: var(--shadow-lg);
        border-top: 1px solid var(--gray-color);
        padding: 20px;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-slow);
        z-index: 99
    }

    nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible
    }

    nav ul {
        flex-direction: column;
        gap: 5px
    }

    nav a {
        padding: 15px;
        border-radius: var(--border-radius);
        justify-content: flex-start
    }

    main {
        padding: 20px 0
    }

    .page-title {
        font-size: 1.7rem;
        margin-bottom: 25px
    }

    .detail-main,
    .detail-sidebar,
    .nav-section,
    .search-section {
        padding: 20px
    }

    .search-input-group {
        flex-direction: column
    }

    .btn {
        width: 100%;
        justify-content: center
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px
    }

    .edit-mode-controls {
        width: 100%;
        flex-direction: column
    }

    .websites-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 20px
    }

    .software-grid {
        grid-template-columns: 1fr;
        gap: 25px
    }

    .software-card-footer {
        flex-direction: column
    }

    .software-card-footer .btn {
        width: 100%
    }

    .review-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px
    }

    .reviewer-info {
        width: 100%
    }

    .modal-content {
        padding: 25px 20px;
        max-height: 85vh
    }

    .form-actions {
        flex-direction: column
    }

    .form-actions .btn {
        width: 100%
    }

    .footer-container {
        flex-direction: column;
        gap: 30px
    }

    .settings-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        width: 100%;
        max-width: 300px;
        margin: 0 auto
    }

    .info-popup {
        position: fixed;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        margin-left: 0;
        width: 90%;
        max-width: 300px
    }

    .restore-selection {
        max-height: 200px
    }

    .app-container {
        gap: 20px
    }

    .notes-grid {
        grid-template-columns: 1fr
    }

    .notes-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px
    }

    h1 {
        font-size: 2.2rem
    }

    .filter-options {
        flex-wrap: wrap
    }
}

@media (max-width:480px) {
    .container {
        padding: 0 15px
    }

    .logo {
        font-size: 1.2rem
    }

    .logo-icon {
        font-size: 1.5rem
    }

    .websites-grid {
        grid-template-columns: 1fr
    }

    .website-card {
        padding: 18px
    }

    .software-card-header {
        flex-direction: column;
        gap: 15px
    }

    .software-card-icon {
        align-self: flex-start
    }

    .engine-option {
        padding: 8px 15px;
        font-size: .9rem
    }

    .search-engine-selector h3 {
        font-size: 1rem
    }

    .edit-mode-controls .btn {
        width: 100%
    }
}

.import-export-buttons {
    display: flex;
    gap: 8px;
    align-items: center
}

#importFile {
    display: none
}

#exportBtn,
#importBtn,
.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: .3s;
    background: var(--gray-light);
    color: var(--text-color);
    border: 1px solid var(--gray-color)
}

.theme-toggle {
    right: 25px
}

.theme-toggle:hover {
    background: var(--accent-color);
    color: #fff;
    box-shadow: var(--shadow)
}

.dark-mode .theme-toggle {
    background: var(--gray-color);
    border-color: var(--secondary-light)
}

.dark-mode .theme-toggle:hover {
    background: var(--accent-light);
    color: var(--primary-color)
}

#exportBtn {
    right: 80px
}

#importBtn {
    right: 135px
}

#exportBtn:hover,
#importBtn:hover,
.theme-toggle:hover {
    background: rgba(255, 255, 255, .2);
    transform: translateY(-2px)
}

.dark-mode #exportBtn,
.dark-mode #importBtn,
.dark-mode .theme-toggle {
    background: rgba(255, 255, 255, .05)
}

.dark-mode #exportBtn:hover,
.dark-mode #importBtn:hover,
.dark-mode .theme-toggle:hover {
    background: rgba(255, 255, 255, .15)
}

@media (max-width:768px) {
    header {
        padding-right: 25px
    }

    #exportBtn,
    #importBtn,
    .theme-toggle {
        position: relative;
        top: 0;
        right: 0;
        display: inline-block;
        margin: 5px
    }
}

.category-meeting {
    background-color: #e3f2fd;
    color: #1565c0
}

.category-work {
    background-color: #e8f5e9;
    color: #2e7d32
}

.category-project {
    background-color: #fff3e0;
    color: #e65100
}

.category-reminder {
    background-color: #fce4ec;
    color: #c2185b
}

.category-idea {
    background-color: #f3e5f5;
    color: #7b1fa2
}

.category-personal {
    background-color: #fff8e1;
    color: #ff8f00
}

.dark-mode .category-meeting {
    background-color: rgba(30, 136, 229, .2);
    color: #64b5f6
}

.dark-mode .category-work {
    background-color: rgba(76, 175, 80, .2);
    color: #81c784
}

.dark-mode .category-project {
    background-color: rgba(255, 167, 38, .2);
    color: #ffcc80
}

.dark-mode .category-reminder {
    background-color: rgba(240, 98, 146, .2);
    color: #f48fb1
}

.dark-mode .category-idea {
    background-color: rgba(186, 104, 200, .2);
    color: #ce93d8
}

.dark-mode .category-personal {
    background-color: rgba(255, 193, 7, .2);
    color: #ffd54f
}

.contact-link-container.simple {
    position: relative;
    display: inline-block
}

.qr-popup.simple {
    display: none;
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: #fff;
    padding: 15px;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, .2);
    border: 1px solid #ddd;
    z-index: 1000;
    text-align: center
}

.qr-popup.simple img {
    max-width: 168px
}

.qr-popup.simple p {
    margin: 0;
    font-size: .9rem;
    color: #666
}