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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
    color: #e0e0e0;
    min-height: 100vh;
}

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

/* Navbar */
.navbar {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-logo i {
    color: #00d4ff;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    align-items: center;
}

.nav-menu li a {
    color: #ccc;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-size: 0.95rem;
}

.nav-menu li a:hover,
.nav-menu li a.active {
    color: #fff;
    background: rgba(0, 212, 255, 0.2);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0.5rem;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #fff;
    margin: 3px 0;
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* Hero */
.hero {
    text-align: center;
    padding: 4rem 2rem 3rem;
    background: linear-gradient(180deg, rgba(0,0,0,0.3) 0%, transparent 100%);
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(90deg, #00d4ff, #7b2ff7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.1rem;
    color: #aaa;
    margin-bottom: 2rem;
}

.search-box {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    max-width: 600px;
    margin: 0 auto;
}

.search-box input {
    flex: 1;
    padding: 0.8rem 1.2rem;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 25px;
    background: rgba(255,255,255,0.1);
    color: #fff;
    font-size: 1rem;
    outline: none;
    transition: all 0.3s ease;
}

.search-box input:focus {
    border-color: #00d4ff;
    box-shadow: 0 0 15px rgba(0,212,255,0.3);
}

.search-box button {
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 25px;
    background: linear-gradient(90deg, #00d4ff, #7b2ff7);
    color: #fff;
    font-size: 1rem;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.search-box button:hover {
    transform: scale(1.05);
}

/* Filter */
.filter-section {
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.filter-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
}

.filter-btn {
    padding: 0.5rem 1.2rem;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 20px;
    background: rgba(255,255,255,0.05);
    color: #ccc;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.filter-btn:hover,
.filter-btn.active {
    background: linear-gradient(90deg, #00d4ff, #7b2ff7);
    color: #fff;
    border-color: transparent;
}

/* Tools Grid */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.tool-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 1.5rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.1);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.tool-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    border-color: rgba(0,212,255,0.3);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.tool-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    object-fit: cover;
}

.card-header h3 {
    font-size: 1.1rem;
    color: #fff;
    flex: 1;
}

.tool-category {
    background: rgba(0,212,255,0.2);
    color: #00d4ff;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-size: 0.8rem;
}

.tool-desc {
    color: #aaa;
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 1rem;
    flex: 1;
}

.card-footer {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.rating {
    display: flex;
    align-items: center;
    gap: 0.2rem;
    color: #ffc107;
    font-size: 0.9rem;
}

.rating-num {
    color: #aaa;
    font-size: 0.85rem;
    margin-left: 0.3rem;
}

.fav-btn {
    background: none;
    border: none;
    color: #ff4757;
    font-size: 1.2rem;
    cursor: pointer;
    transition: transform 0.3s ease;
    padding: 0.3rem;
}

.fav-btn:hover {
    transform: scale(1.2);
}

.fav-btn.active {
    color: #ff4757;
}

.visit-btn {
    margin-left: auto;
    padding: 0.4rem 1rem;
    background: linear-gradient(90deg, #00d4ff, #7b2ff7);
    color: #fff;
    border-radius: 20px;
    font-size: 0.85rem;
    transition: transform 0.3s ease;
}

.visit-btn:hover {
    transform: scale(1.05);
}

/* Comments */
.comments-section {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.comments-section h4 {
    color: #ccc;
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}

.comments-list {
    max-height: 120px;
    overflow-y: auto;
    margin-bottom: 0.5rem;
}

.comment-item {
    display: flex;
    gap: 0.5rem;
    padding: 0.3rem 0;
    font-size: 0.85rem;
}

.comment-author {
    color: #00d4ff;
    font-weight: 600;
    white-space: nowrap;
}

.comment-text {
    color: #bbb;
}

.no-comments {
    color: #666;
    font-size: 0.85rem;
}

.comment-form {
    display: flex;
    gap: 0.3rem;
    align-items: center;
}

.comment-input {
    flex: 1;
    padding: 0.4rem 0.8rem;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 15px;
    background: rgba(255,255,255,0.05);
    color: #fff;
    font-size: 0.85rem;
    outline: none;
}

.comment-input:focus {
    border-color: #00d4ff;
}

.star-rating {
    display: flex;
    gap: 0.1rem;
    color: #ffc107;
    cursor: pointer;
}

.star-rating .star {
    font-size: 1.2rem;
    transition: transform 0.2s ease;
}

.star-rating .star:hover {
    transform: scale(1.3);
}

.comment-btn {
    padding: 0.4rem 0.8rem;
    border: none;
    border-radius: 15px;
    background: linear-gradient(90deg, #00d4ff, #7b2ff7);
    color: #fff;
    cursor: pointer;
    font-size: 0.85rem;
    transition: transform 0.3s ease;
}

.comment-btn:hover {
    transform: scale(1.05);
}

/* Footer */
footer {
    background: rgba(0,0,0,0.3);
    padding: 2rem;
    text-align: center;
    margin-top: 2rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: #aaa;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #00d4ff;
}

.footer-content p {
    color: #666;
    font-size: 0.9rem;
}

/* Admin */
.admin-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.admin-main h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    background: linear-gradient(90deg, #00d4ff, #7b2ff7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.admin-subtitle {
    color: #aaa;
    margin-bottom: 2rem;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    background: rgba(255,255,255,0.05);
    border-radius: 12px;
    overflow: hidden;
}

.admin-table th,
.admin-table td {
    padding: 0.8rem 1rem;
    text-align: left;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.admin-table th {
    background: rgba(0,212,255,0.1);
    color: #00d4ff;
    font-weight: 600;
}

.admin-table td {
    color: #ccc;
}

.admin-table tr:hover {
    background: rgba(255,255,255,0.05);
}

.action-btns {
    display: flex;
    gap: 0.5rem;
}

.btn-edit,
.btn-delete {
    padding: 0.3rem 0.8rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: transform 0.3s ease;
    color: #fff;
}

.btn-edit {
    background: linear-gradient(90deg, #00d4ff, #7b2ff7);
}

.btn-delete {
    background: #ff4757;
}

.btn-edit:hover,
.btn-delete:hover {
    transform: scale(1.05);
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
}

.modal-content {
    background: #1a1a2e;
    padding: 2rem;
    border-radius: 16px;
    max-width: 500px;
    width: 90%;
    position: relative;
    border: 1px solid rgba(255,255,255,0.1);
}

.close-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: #aaa;
    transition: color 0.3s ease;
}

.close-btn:hover {
    color: #fff;
}

.modal-content h2 {
    color: #fff;
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    color: #ccc;
    margin-bottom: 0.3rem;
    font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.6rem 1rem;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 8px;
    background: rgba(255,255,255,0.05);
    color: #fff;
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: #00d4ff;
}

.btn-primary {
    padding: 0.7rem 1.5rem;
    border: none;
    border-radius: 8px;
    background: linear-gradient(90deg, #00d4ff, #7b2ff7);
    color: #fff;
    font-size: 1rem;
    cursor: pointer;
    transition: transform 0.3s ease;
    width: 100%;
}

.btn-primary:hover {
    transform: scale(1.02);
}

/* Submit Page */
.submit-page {
    max-width: 700px;
    margin: 0 auto;
    padding: 2rem;
}

.submit-container {
    background: rgba(255,255,255,0.05);
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid rgba(255,255,255,0.1);
}

.submit-container h1 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
    background: linear-gradient(90deg, #00d4ff, #7b2ff7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.submit-container > p {
    color: #aaa;
    margin-bottom: 1.5rem;
}

.submit-form .form-group {
    margin-bottom: 1.2rem;
}

.required {
    color: #ff4757;
}

.success-msg {
    background: rgba(0,200,83,0.2);
    color: #00c853;
    padding: 0.8rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    border: 1px solid rgba(0,200,83,0.3);
}

.back-link {
    text-align: center;
    margin-top: 1.5rem;
}

.back-link a {
    color: #00d4ff;
    transition: color 0.3s ease;
}

.back-link a:hover {
    color: #7b2ff7;
}

/* Login Page */
.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 80vh;
    padding: 2rem;
}

.login-container {
    background: rgba(255,255,255,0.05);
    border-radius: 16px;
    padding: 2.5rem;
    max-width: 400px;
    width: 100%;
    border: 1px solid rgba(255,255,255,0.1);
}

.login-container h1 {
    text-align: center;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    color: #fff;
}

.error-msg {
    background: rgba(255,71,87,0.2);
    color: #ff4757;
    padding: 0.5rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    text-align: center;
}

/* Favorites */
.page-header {
    text-align: center;
    padding: 2rem 2rem 1rem;
}

.page-header h1 {
    font-size: 2rem;
    background: linear-gradient(90deg, #00d4ff, #7b2ff7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.page-header p {
    color: #aaa;
}

.empty-state {
    text-align: center;
    padding: 3rem;
    color: #aaa;
    grid-column: 1 / -1;
}

.empty-state i {
    font-size: 3rem;
    color: #ff4757;
    margin-bottom: 1rem;
}

.empty-state p {
    margin-bottom: 1.5rem;
}

/* Hot Page */
.tag-cloud {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
}

.tag-cloud h2 {
    text-align: center;
    margin-bottom: 1rem;
    color: #ccc;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    justify-content: center;
    padding: 1rem;
    background: rgba(255,255,255,0.03);
    border-radius: 12px;
}

.tag-item {
    padding: 0.3rem 0.8rem;
    background: rgba(0,212,255,0.1);
    border-radius: 15px;
    color: #00d4ff;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tag-item:hover {
    background: rgba(0,212,255,0.3);
    transform: scale(1.1);
}

.hot-list {
    max-width: 800px;
    margin: 0 auto;
    padding: 1rem 2rem;
}

.hot-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: rgba(255,255,255,0.05);
    border-radius: 12px;
    margin-bottom: 1rem;
    border: 1px solid rgba(255,255,255,0.05);
    transition: all 0.3s ease;
}

.hot-item:hover {
    border-color: rgba(0,212,255,0.3);
    transform: translateX(5px);
}

.hot-rank {
    font-size: 1.2rem;
    font-weight: 700;
    color: #666;
    min-width: 40px;
}

.hot-rank.top-three {
    color: #ffc107;
}

.hot-icon {
    width: 50px;
    height: 50px;
    border-radius: 10px;
    object-fit: cover;
}

.hot-info {
    flex: 1;
}

.hot-info h3 {
    color: #fff;
    font-size: 1rem;
    margin-bottom: 0.3rem;
}

.hot-info p {
    color: #aaa;
    font-size: 0.85rem;
    margin-bottom: 0.3rem;
}

.hot-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.8rem;
    color: #888;
}

.hot-meta i {
    margin-right: 0.2rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(15, 12, 41, 0.95);
        flex-direction: column;
        padding: 1rem 0;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu li {
        width: 100%;
        text-align: center;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .tools-grid {
        grid-template-columns: 1fr;
        padding: 1rem;
    }

    .filter-container {
        flex-wrap: nowrap;
        overflow-x: auto;
        justify-content: flex-start;
        padding: 0.5rem 0;
    }

    .filter-btn {
        white-space: nowrap;
    }

    .hot-item {
        flex-wrap: wrap;
    }

    .admin-table {
        font-size: 0.8rem;
    }

    .admin-table th,
    .admin-table td {
        padding: 0.5rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.4rem;
    }

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

    .search-box button {
        width: 100%;
    }

    .card-footer {
        flex-wrap: wrap;
    }

    .visit-btn {
        margin-left: 0;
    }
}