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

:root {
    --primary: #667eea;
    --primary-dark: #5a6fd6;
    --secondary: #764ba2;
    --accent: #f093fb;
    --bg: #f8f9fe;
    --text: #2d3436;
    --text-light: #636e72;
    --white: #ffffff;
    --shadow: 0 10px 40px rgba(102, 126, 234, 0.15);
    --radius: 20px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.header {
    background: rgba(255,255,255,0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(102,126,234,0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-icon {
    flex-shrink: 0;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.5px;
}

.logo-dot {
    color: var(--primary);
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-light);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text);
    transition: var(--transition);
}

/* Hero */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 120px 0 80px;
}

.hero-content {
    text-align: center;
    max-width: 700px;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: linear-gradient(135deg, rgba(102,126,234,0.1), rgba(118,75,162,0.1));
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
    letter-spacing: -2px;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 40px;
}

.search-box {
    max-width: 600px;
    margin: 0 auto;
}

.search-wrapper {
    display: flex;
    align-items: center;
    background: var(--white);
    border-radius: 60px;
    padding: 6px;
    box-shadow: var(--shadow);
    border: 2px solid transparent;
    transition: var(--transition);
}

.search-wrapper:focus-within {
    border-color: var(--primary);
    box-shadow: 0 10px 40px rgba(102,126,234,0.25);
}

.search-icon {
    color: var(--text-light);
    margin-left: 16px;
    flex-shrink: 0;
}

.search-input {
    flex: 1;
    border: none;
    padding: 14px 16px;
    font-size: 1rem;
    font-family: inherit;
    background: transparent;
    outline: none;
    color: var(--text);
}

.search-input::placeholder {
    color: #b2bec3;
}

.search-btn {
    padding: 14px 32px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--white);
    border: none;
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.search-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102,126,234,0.4);
}

/* Result Area */
.result-area {
    margin-top: 32px;
    min-height: 100px;
}

.result-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--text-light);
    opacity: 0.6;
}

.result-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 32px;
    box-shadow: var(--shadow);
    text-align: left;
    animation: slideUp 0.4s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.result-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid #f0f0f0;
}

.result-word {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text);
}

.result-translation {
    font-size: 1.2rem;
    color: var(--primary);
    font-weight: 500;
}

.speak-btn {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border: none;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.speak-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 5px 15px rgba(102,126,234,0.4);
}

.result-section {
    margin-bottom: 20px;
}

.result-section h4 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-light);
    margin-bottom: 8px;
    font-weight: 600;
}

.result-section ul {
    list-style: none;
    padding: 0;
}

.result-section li {
    padding: 8px 12px;
    background: var(--bg);
    border-radius: 8px;
    margin-bottom: 6px;
    font-size: 0.95rem;
}

.synonyms-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.synonym-tag {
    padding: 6px 16px;
    background: linear-gradient(135deg, rgba(102,126,234,0.1), rgba(118,75,162,0.1));
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--primary);
    font-weight: 500;
}

.language-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 8px;
}

.language-item {
    padding: 10px 16px;
    background: var(--bg);
    border-radius: 8px;
    font-size: 0.9rem;
}

.language-item strong {
    display: block;
    font-size: 0.8rem;
    color: var(--text-light);
    margin-bottom: 4px;
}

/* Features Section */
.features {
    padding: 80px 0;
    background: var(--white);
}

.section-title {
    text-align: center;
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 48px;
    color: var(--text);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    margin: 12px auto 0;
    border-radius: 2px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}

.feature-card {
    padding: 32px 24px;
    background: var(--bg);
    border-radius: var(--radius);
    text-align: center;
    transition: var(--transition);
    cursor: default;
}

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

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(102,126,234,0.1), rgba(118,75,162,0.1));
    border-radius: 16px;
}

.feature-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* Content Preview */
.content-preview {
    padding: 80px 0;
}

.content-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.content-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    transition: var(--transition);
}

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

.card-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.content-card:hover .card-image img {
    transform: scale(1.05);
}

.card-content {
    padding: 24px;
}

.card-content h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.card-content p {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 12px;
}

.card-link {
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
}

/* History Section */
.history-section {
    padding: 80px 0;
    background: var(--white);
}

.history-list {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.history-item {
    padding: 14px 20px;
    background: var(--bg);
    border-radius: 12px;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
}

.history-item:hover {
    background: linear-gradient(135deg, rgba(102,126,234,0.1), rgba(118,75,162,0.1));
    transform: translateX(8px);
}

/* Footer */
.footer {
    background: var(--text);
    color: var(--white);
    padding: 60px 0 24px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 40px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.footer-brand .logo-text {
    color: var(--white);
}

.footer-brand p {
    color: rgba(255,255,255,0.6);
    font-size: 0.9rem;
    margin-top: 8px;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
}

.footer-links a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--accent);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 24px;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255,255,255,0.5);
    font-size: 0.85rem;
}

.footer-bottom a {
    color: var(--accent);
    text-decoration: none;
}

/* Hero Shapes */
.hero-shapes {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: var(--primary);
    top: -100px;
    right: -100px;
    animation: float 8s ease-in-out infinite;
}

.shape-2 {
    width: 300px;
    height: 300px;
    background: var(--secondary);
    bottom: -50px;
    left: -50px;
    animation: float 6s ease-in-out infinite reverse;
}

.shape-3 {
    width: 200px;
    height: 200px;
    background: var(--accent);
    top: 50%;
    left: 10%;
    animation: float 10s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-30px) rotate(5deg); }
}

/* Page Styles */
.page-main {
    padding-top: 72px;
}

.page-hero {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--white);
    padding: 80px 0;
    text-align: center;
}

.page-hero h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 12px;
}

.page-hero p {
    font-size: 1.2rem;
    opacity: 0.9;
}

.page-content {
    padding: 60px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.about-text h2 {
    font-size: 2rem;
    margin-bottom: 20px;
}

.about-text p {
    color: var(--text-light);
    margin-bottom: 16px;
    line-height: 1.8;
}

.about-image img {
    width: 100%;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.features-detail {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.feature-detail-card {
    padding: 32px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    transition: var(--transition);
}

.feature-detail-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

.feature-detail-card h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
}

.feature-detail-card p {
    color: var(--text-light);
    line-height: 1.7;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}

.contact-info h2 {
    font-size: 1.8rem;
    margin-bottom: 24px;
}

.contact-info p {
    margin-bottom: 12px;
    color: var(--text-light);
    font-size: 1rem;
}

.contact-info a {
    color: var(--primary);
    text-decoration: none;
}

.contact-form {
    background: var(--white);
    padding: 32px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

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

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 8px;
    font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    font-family: inherit;
    font-size: 0.95rem;
    transition: var(--transition);
    background: var(--bg);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(102,126,234,0.1);
}

.btn {
    padding: 14px 32px;
    border: none;
    border-radius: 12px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--white);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102,126,234,0.4);
}

.btn-secondary {
    background: var(--bg);
    color: var(--text);
    text-decoration: none;
    display: inline-block;
}

.btn-danger {
    background: #ff6b6b;
    color: white;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.85rem;
}

/* Admin Styles */
.admin-body {
    background: var(--bg);
    min-height: 100vh;
}

.admin-login {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 24px;
}

.login-card {
    background: var(--white);
    padding: 48px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    width: 100%;
    max-width: 420px;
}

.login-card h1 {
    text-align: center;
    margin-bottom: 32px;
    font-size: 1.8rem;
}

.admin-panel {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
}

.admin-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.admin-card {
    background: var(--white);
    padding: 32px;
    border-radius: var(--radius);
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
}

.admin-card h2 {
    margin-bottom: 24px;
    font-size: 1.3rem;
}

.alert {
    padding: 16px 20px;
    border-radius: 12px;
    margin-bottom: 24px;
    font-weight: 500;
}

.alert-success {
    background: #d4edda;
    color: #155724;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
}

.word-list {
    max-height: 500px;
    overflow-y: auto;
}

.word-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid #f0f0f0;
}

.word-item:last-child {
    border-bottom: none;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 24px;
        box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    }

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

    .menu-toggle {
        display: flex;
    }

    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .admin-grid {
        grid-template-columns: 1fr;
    }

    .result-header {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }

    .language-list {
        grid-template-columns: 1fr;
    }
}

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

    .search-wrapper {
        flex-direction: column;
        border-radius: 20px;
    }

    .search-btn {
        width: 100%;
        border-radius: 12px;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }
}