:root {
    --primary: #6d5dfc;
    --primary-light: #8a7dfc;
    --primary-dark: #5a4fd9;
    --secondary: #f0f2f5;
    --text: #333344;
    --text-light: #666677;
    --text-lighter: #888899;
    --white: #ffffff;
    --card-bg: #ffffff;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --radius: 12px;
    --transition: all 0.3s ease;
}

.word-counter-dark-mode {
    --primary: #8a7dfc;
    --primary-light: #a296fc;
    --primary-dark: #6d5dfc;
    --secondary: #2a2a3a;
    --text: #e0e0e0;
    --text-light: #b0b0c0;
    --text-lighter: #888899;
    --white: #1e1e2e;
    --card-bg: #252536;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.word-counter-container {
    background-color: var(--secondary);
    color: var(--text);
    transition: var(--transition);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-family: 'Inter', sans-serif;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.word-counter-container * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

.word-counter-wrapper {
    display: flex;
    flex: 1;
    max-width: 1800px;
    margin: 0 auto;
    width: 100%;
    padding: 1.5rem;
    gap: 1.5rem;
}

.word-counter-sidebar {
    width: 200px;
    background-color: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: var(--transition);
    height: fit-content;
    position: sticky;
    top: 90px;
}

.word-counter-sidebar-title {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 6px;
}

.word-counter-sidebar-title i {
    color: var(--primary);
    font-size: 0.8rem;
}

.word-counter-tool-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0.6rem 0.7rem;
    background: var(--secondary);
    border: none;
    border-radius: 6px;
    color: var(--text);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
    font-size: 0.85rem;
}

.word-counter-tool-btn:hover {
    background: var(--primary-light);
    color: var(--white);
    transform: translateY(-2px);
}

.word-counter-tool-btn.active {
    background: var(--primary);
    color: var(--white);
    box-shadow: 0 4px 12px rgba(109, 93, 252, 0.3);
}

.word-counter-tool-btn i {
    font-size: 0.9rem;
    width: 16px;
    text-align: center;
}

.word-counter-main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.word-counter-hero {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: white;
    padding: 1.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.word-counter-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 70%);
}

.word-counter-hero h2 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
    position: relative;
}

.word-counter-hero p {
    font-size: 0.95rem;
    opacity: 0.9;
    position: relative;
}

.word-counter-content-area {
    display: flex;
    gap: 1.5rem;
    height: calc(100vh - 220px);
    min-height: 200px;
}

.word-counter-text-section {
    flex: 3;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.word-counter-stats-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-height: 100%;
    overflow-y: auto;
}

.word-counter-text-area-container {
    background-color: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
    flex: 1;
    display: flex;
    flex-direction: column;
    border: 2px solid #e0e0e0;
}

.word-counter-text-area-container:focus-within {
    box-shadow: 0 6px 25px rgba(109, 93, 252, 0.15);
    border-color: var(--primary-light);
}

.word-counter-text-area-header {
    padding: 0.8rem 1.2rem;
    background-color: var(--secondary);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.word-counter-text-area-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.word-counter-text-area-header h3 i {
    color: var(--primary);
}

.word-counter-text-actions {
    display: flex;
    gap: 0.5rem;
}

.word-counter-action-btn {
    background: var(--white);
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-light);
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.word-counter-action-btn:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
}

.word-counter-textarea {
    width: 100%;
    flex: 1;
    border: none;
    padding: 1.5rem;
    font-size: 1rem;
    line-height: 1.6;
    resize: none;
    background-color: var(--white);
    color: var(--text);
    transition: var(--transition);
    min-height: 400px;
    font-family: 'Inter', sans-serif;
}

.word-counter-textarea:focus {
    outline: none;
}

.word-counter-textarea::placeholder {
    color: var(--text-lighter);
    font-style: italic;
}

.word-counter-stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 0.8rem;
}

.word-counter-stat-card {
    background-color: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    transition: var(--transition);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.word-counter-stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
}

.word-counter-stat-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.word-counter-stat-title {
    font-size: 0.8rem;
    color: var(--text-light);
    font-weight: 500;
}

.word-counter-stat-value {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary);
}

.word-counter-keyword-section {
    background-color: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.2rem;
    margin-top: 2rem;
}

.word-counter-section-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 8px;
}

.word-counter-section-title i {
    color: var(--primary);
}

.word-counter-keyword-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
}

.word-counter-keyword-card {
    background-color: var(--secondary);
    border-radius: var(--radius);
    padding: 1rem;
    transition: var(--transition);
}

.word-counter-keyword-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(0,0,0,0.08);
}

.word-counter-keyword-card h4 {
    font-size: 0.95rem;
    margin-bottom: 0.7rem;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 6px;
}

.word-counter-keyword-card h4 i {
    color: var(--primary);
}

.word-counter-keyword-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.word-counter-keyword-item {
    background-color: var(--white);
    padding: 0.35rem 0.7rem;
    border-radius: 50px;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.word-counter-keyword-item:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.word-counter-keyword-count {
    background-color: var(--primary);
    color: white;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: 600;
}

.word-counter-case-dropdown {
    position: relative;
    display: inline-block;
    width: 100%;
}

.word-counter-case-options {
    display: none;
    position: absolute;
    background-color: var(--white);
    min-width: 180px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
    border-radius: 8px;
    z-index: 1;
    overflow: hidden;
    margin-top: 0;
    top: 100%;
    left: 0;
    width: 100%;
}

.word-counter-case-options button {
    color: var(--text);
    padding: 8px 12px;
    text-decoration: none;
    display: block;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.85rem;
}

.word-counter-case-options button:hover {
    background-color: var(--primary);
    color: white;
}

.word-counter-case-dropdown:hover .word-counter-case-options {
    display: block;
}

.word-counter-case-dropdown::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 10px;
    background: transparent;
}

.word-counter-progress-bar {
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    width: 0%;
    transition: width 0.5s ease;
    border-radius: 2px;
    margin-top: 0.5rem;
}

.word-counter-theme-toggle {
    background: var(--secondary);
    border: none;
    width: 50px;
    height: 26px;
    border-radius: 50px;
    position: relative;
    cursor: pointer;
    display: flex;
    align-items: center;
    padding: 0 5px;
    transition: var(--transition);
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
}

.word-counter-theme-toggle::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--white);
    transition: var(--transition);
    left: 3px;
}

.word-counter-dark-mode .word-counter-theme-toggle::after {
    transform: translateX(24px);
}

.word-counter-stats-section::-webkit-scrollbar {
    width: 6px;
}

.word-counter-stats-section::-webkit-scrollbar-track {
    background: var(--secondary);
    border-radius: 10px;
}

.word-counter-stats-section::-webkit-scrollbar-thumb {
    background: var(--primary-light);
    border-radius: 10px;
}

.word-counter-stats-section::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

@media (max-width: 1200px) {
    .word-counter-content-area {
        flex-direction: column;
        height: auto;
    }
    
    .word-counter-stats-section {
        order: -1;
        max-height: none;
    }
    
    .word-counter-stats-container {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    }
}

@media (max-width: 1024px) {
    .word-counter-wrapper {
        flex-direction: column;
    }
    
    .word-counter-sidebar {
        width: 100%;
        flex-direction: row;
        flex-wrap: wrap;
        position: static;
    }
    
    .word-counter-sidebar-group {
        flex: 1;
        min-width: 180px;
    }
}

@media (max-width: 768px) {
    .word-counter-stats-container {
        grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    }
    
    .word-counter-keyword-cards {
        grid-template-columns: 1fr;
    }
    
    .word-counter-hero h2 {
        font-size: 1.5rem;
    }
    
    .word-counter-hero p {
        font-size: 0.9rem;
    }
    
    .word-counter-sidebar-group {
        min-width: 100%;
    }
}

@media (max-width: 480px) {
    .word-counter-wrapper {
        padding: 1rem;
    }
    
    .word-counter-stats-container {
        grid-template-columns: 1fr 1fr;
    }
    
    .word-counter-text-actions {
        display: none;
    }
    
    .word-counter-hero {
        padding: 1.2rem;
    }
}