:root {
    --background-color: #F5F0E8;
    --text-primary: #4C4A48;
    --text-secondary: #8A8886;
    --accent-color: #D97A58;
    --border-color: #D1C7B7;
    --shadow-color: rgba(0, 0, 0, 0.05);
}

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

body {
    font-family: 'Georgia', 'Times New Roman', serif;
    background-color: var(--background-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    line-height: 1.6;
}

.container {
    width: 100%;
    max-width: 1000px;
    background: var(--background-color);
    padding: 40px;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.header {
    text-align: center;
}

.logo-section {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.logo h1 {
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--accent-color);
    margin: 0;
    letter-spacing: 1px;
}

.header p {
    color: var(--text-secondary);
    font-size: 1.2rem;
    font-weight: 400;
    font-style: italic;
}

.language-selector {
    position: relative;
    display: inline-block;
}

.language-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid var(--border-color);
    border-radius: 25px;
    padding: 10px 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-primary);
    font-size: 1rem;
    backdrop-filter: blur(10px);
}

.language-btn:hover {
    border-color: var(--accent-color);
    background-color: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
}

.flag-icon {
    width: 20px;
    height: 15px;
    object-fit: cover;
    border-radius: 2px;
}

.language-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    margin-top: 8px;
    min-width: 180px;
    z-index: 1000;
    max-height: 300px;
    overflow-y: auto;
    backdrop-filter: blur(10px);
}

.language-option {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 12px 16px;
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    color: var(--text-primary);
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    font-family: inherit;
}

.language-option:last-child {
    border-bottom: none;
}

.language-option:hover {
    background-color: rgba(217, 122, 88, 0.1);
    color: var(--accent-color);
}

.corrector-box {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    position: relative;
    min-height: 400px;
}

.input-section, .output-section {
    display: flex;
    flex-direction: column;
}

.output-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1.1rem;
}
.input-section > label {
    margin-bottom: 12px;
}


textarea, .output-area {
    width: 100%;
    height: 300px;
    padding: 20px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 16px;
    line-height: 1.6;
    resize: vertical;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.8);
    color: var(--text-primary);
    font-family: inherit;
}

textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    background: rgba(255, 255, 255, 0.95);
}

.output-area {
    background: rgba(255, 255, 255, 0.6);
    overflow-y: auto;
    font-size: 16px;
    line-height: 1.6;
}

.output-area .highlight {
    background-color: rgba(217, 122, 88, 0.25);
    border-radius: 3px;
    padding: 1px 2px;
}

#copy-btn {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 6px 12px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all 0.2s ease;
    font-size: 14px;
}

#copy-btn:hover {
    color: var(--accent-color);
    border-color: var(--accent-color);
    background-color: rgba(217, 122, 88, 0.05);
}

#copy-btn .fa-check {
    color: #22C55E;
}


.loader {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    background: rgba(255, 255, 255, 0.9);
    padding: 25px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-left: 3px solid var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loader span {
    color: var(--text-secondary);
    font-size: 1rem;
}

.loader.hidden {
    display: none;
}

.hidden {
    display: none;
}

.app-footer {
    background: transparent;
    padding: 20px 0;
    margin-top: 20px;
    text-align: center;
}

.footer-text {
    color: var(--text-primary);
    font-weight: 400;
    margin-bottom: 15px;
    font-family: 'Times New Roman', Times, serif;
    font-size: 1.1rem;
    letter-spacing: 0.5px;
}

.footer-content {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 10px;
    gap: 15px;
}

.dragonfly-icon {
    font-size: 1.5rem;
    color: #D97A58;
}

.signature-bar {
    height: 4px;
    width: 100%;
    max-width: 250px;
    border-radius: 2px;
    background: linear-gradient(to right, 
        #8B5CF6 0%, #8B5CF6 20%,
        #3B82F6 20%, #3B82F6 40%,
        #22C55E 40%, #22C55E 60%,
        #F97316 60%, #F97316 80%,
        #EF4444 80%, #EF4444 100%
    );
}

.api-credit {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-style: italic;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@media (max-width: 768px) {
    .container {
        padding: 25px 15px;
        gap: 20px;
    }
    
    .corrector-box {
        grid-template-columns: 1fr;
        gap: 20px;
        min-height: auto;
    }
    
    .logo h1 {
        font-size: 2.2rem;
    }
    
    .logo-section {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    textarea, .output-area {
        height: 200px;
    }
    
    .language-btn {
        padding: 8px 16px;
        font-size: 0.9rem;
    }
    
    .language-dropdown {
        min-width: 160px;
    }
    
    .header p {
        font-size: 1rem;
    }
    
    .app-footer {
        padding: 15px 0;
    }
}