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body { font-family: sans-serif; background: #f4f7f9; display: flex; justify-content: center; align-items: center; min-height: 100vh; margin: 0; }
.form-container { background: white; padding: 30px; border-radius: 15px; box-shadow: 0 10px 30px rgba(0,0,0,0.1); width: 100%; max-width: 350px; text-align: center; }
input, textarea { width: 100%; padding: 12px; margin: 8px 0; border: 1px solid #ddd; border-radius: 8px; box-sizing: border-box; }
textarea { height: 80px; }
button { width: 100%; padding: 14px; background: #0088cc; color: white; border: none; border-radius: 8px; cursor: pointer; font-weight: bold; font-size: 16px; }
#success { display: none; color: #27ae60; font-weight: bold; margin-top: 20px; }