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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    color: #333;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

h1 {
    text-align: center;
    color: #667eea;
    margin-bottom: 30px;
    font-size: 2em;
}

h2 {
    color: #555;
    margin-bottom: 20px;
    font-size: 1.3em;
}

/* Tabs */
.tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    border-bottom: 2px solid #e0e0e0;
}

.tab-button {
    padding: 12px 24px;
    background: none;
    border: none;
    color: #666;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s;
    border-bottom: 3px solid transparent;
}

.tab-button:hover {
    color: #667eea;
}

.tab-button.active {
    color: #667eea;
    border-bottom: 3px solid #667eea;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Forms */
.input-section {
    margin-bottom: 30px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #555;
}

.input-field {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.input-field:focus {
    outline: none;
    border-color: #667eea;
}

small {
    display: block;
    margin-top: 5px;
    color: #999;
    font-size: 13px;
}

.antitemplate-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
}

.anti-input {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    text-align: center;
    font-size: 18px;
    font-weight: bold;
    text-transform: lowercase;
}

.anti-input:focus {
    outline: none;
    border-color: #667eea;
}

/* Buttons */
.btn {
    padding: 12px 30px;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-block;
    margin-right: 10px;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
}

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

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

/* Upload Area */
.upload-area {
    border: 3px dashed #ccc;
    border-radius: 10px;
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    margin-bottom: 20px;
}

.upload-area:hover {
    border-color: #667eea;
    background: #f8f9ff;
}

.upload-area.dragover {
    border-color: #667eea;
    background: #f0f3ff;
}

.upload-prompt svg {
    color: #667eea;
    margin-bottom: 15px;
}

.upload-prompt p {
    font-size: 18px;
    color: #555;
    margin-bottom: 5px;
}

#imagePreview {
    text-align: center;
    margin-bottom: 20px;
}

#previewImg {
    max-width: 100%;
    max-height: 400px;
    border-radius: 10px;
    margin-bottom: 15px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

/* Stream */
#screenVideo {
    width: 100%;
    max-height: 400px;
    border-radius: 10px;
    margin-top: 20px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.stream-status {
    margin-top: 20px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 10px;
    font-size: 14px;
}

.info-text {
    background: #fff3cd;
    border: 1px solid #ffc107;
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 20px;
    color: #856404;
}

.detection-info {
    background: #e7f3ff;
    border: 1px solid #2196F3;
    padding: 15px;
    border-radius: 10px;
    margin-top: 20px;
}

/* Results */
.results-section {
    margin-top: 30px;
    padding-top: 30px;
    border-top: 2px solid #e0e0e0;
}

#resultCount {
    color: #667eea;
    font-size: 0.9em;
}

.words-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 10px;
    margin-top: 15px;
}

.word-item {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 15px;
    border-radius: 10px;
    text-align: center;
    font-size: 18px;
    font-weight: 600;
    transition: all 0.3s;
    cursor: pointer;
    text-transform: uppercase;
}

.word-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

/* Loading */
.loading {
    text-align: center;
    padding: 40px;
}

.spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

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

/* Responsive */
@media (max-width: 600px) {
    .container {
        padding: 20px;
    }

    h1 {
        font-size: 1.5em;
    }

    .tabs {
        flex-direction: column;
    }

    .tab-button {
        padding: 10px;
        text-align: left;
        border-left: 3px solid transparent;
        border-bottom: none;
    }

    .tab-button.active {
        border-left: 3px solid #667eea;
        border-bottom: none;
    }

    .antitemplate-grid {
        grid-template-columns: repeat(5, 1fr);
        gap: 5px;
    }

    .words-list {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    }
}